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Gene Information

Gene symbol: INHBE

Gene name: inhibin, beta E

HGNC ID: 24029

Synonyms: activin, MGC4638

Related Genes

# Gene Symbol Number of hits
1 ACVR1 1 hits
2 ACVR1B 1 hits
3 ACVR1C 1 hits
4 ACVR2A 1 hits
5 ACVR2B 1 hits
6 ACVRL1 1 hits
7 ADCYAP1 1 hits
8 ADIPOQ 1 hits
9 ALB 1 hits
10 ALPP 1 hits
11 ANGPT1 1 hits
12 BMP2 1 hits
13 BMP7 1 hits
14 BMPR1A 1 hits
15 BTC 1 hits
16 CGA 1 hits
17 COL1A1 1 hits
18 CRH 1 hits
19 CRHBP 1 hits
20 CRP 1 hits
21 CTSG 1 hits
22 CXCR4 1 hits
23 CYP19A1 1 hits
24 CYSLTR2 1 hits
25 DLL4 1 hits
26 ELN 1 hits
27 ENG 1 hits
28 EPHB2 1 hits
29 F11R 1 hits
30 FOXA2 1 hits
31 FSHB 1 hits
32 FST 1 hits
33 FSTL3 1 hits
34 GCG 1 hits
35 GNRH1 1 hits
36 GNRHR 1 hits
37 HBB 1 hits
38 HGF 1 hits
39 HHIP 1 hits
40 IL6 1 hits
41 INHBA 1 hits
42 INS 1 hits
43 KLRG1 1 hits
44 LEP 1 hits
45 LHB 1 hits
46 MAPK1 1 hits
47 MAPK14 1 hits
48 MAPK8 1 hits
49 MSTN 1 hits
50 NES 1 hits
51 NEUROD1 1 hits
52 NEUROG3 1 hits
53 NKX2-2 1 hits
54 PARD3 1 hits
55 PAX4 1 hits
56 PAX6 1 hits
57 PDX1 1 hits
58 PPY 1 hits
59 RAB13 1 hits
60 RAB3B 1 hits
61 RPSA 1 hits
62 RUNX2 1 hits
63 SMAD1 1 hits
64 SMAD2 1 hits
65 SMAD3 1 hits
66 SMAD4 1 hits
67 SOX17 1 hits
68 TCF7 1 hits
69 TCF7L2 1 hits
70 TDGF1 1 hits
71 TF 1 hits
72 TGFA 1 hits
73 TGFB1 1 hits
74 TGFB3 1 hits
75 TGFBR1 1 hits
76 VIP 1 hits
77 VLDLR 1 hits

Related Sentences

# PMID Sentence
1 1591345 Regulation of pulsatile gonadotropin secretion by estrogen, inhibin, and follistatin (activin-binding protein) in ovariectomized rats.
2 1671798 The effect of insulin and insulin-like growth factors were examined in closer detail because of the clinical association between insulin and hyperandrogenism.
3 1671798 Pituitary hormones and hypothalamic releasing factors, such as human ACTH (10 nM), beta-endorphin (10 nM), beta-lipotropin (10 nM), alpha-MSH (10 nM), gamma 3-MSH (10 nM), ovine luteinizing hormone (10 ng/ml), ovine follicle-stimulating hormone (10 ng/ml), ovine thyroid-stimulating hormone (10 ng/ml), rat growth hormone (10 ng/ml), rat prolactin (10 ng/ml), rat corticotropin-releasing factor (10 nM), luteinizing hormone-releasing factor (10 nM), thyrotropin-releasing factor (10 nM), human growth hormone-releasing factor (10 nM), and somatostatin (10 nM), have no significant effects on aromatase activity.
4 1671798 Porcine inhibin A (10 ng/ml) and porcine activin AB (10 ng/ml), two ovarian hormones with structural transforming homology to transforming growth factor-beta, also have no effect on aromatase activity.
5 1671798 Although basic fibroblast growth factor (1-100 ng/ml), acidic fibroblast growth factor (1 ng/ml), epidermal growth factor (1 ng/ml), platelet-derived growth factor (1 ng/ml), tumor necrosis factor (1 ng/ml), and transforming growth factor-beta 1 (1 ng/ml) have no effect on basal aromatase activity in human skin fibroblasts, all of these growth factors inhibited the ability of dibutyryladenosine 3',5'-cyclic monophosphate to stimulate aromatase activity.
6 1671798 In contrast, both insulin (100 pg/ml-10 ng/ml) and insulin-like growth factor-1 (1-100 ng/ml) had no effect on cAMP-stimulated aromatase but potentiated the action of dexamethasone (100 nM).
7 1671798 On the basis of the results presented here, it is interesting to speculate that the hyperandrogenism that is often associated with insulin resistance may be due to a combination of growth factor-mediated inhibition of aromatase activity and the failure of peripheral tissues to respond to insulin and metabolize androgens to estrogens.
8 1883364 Follistatin is a monomeric protein originally discovered in ovarian follicular fluid as a suppressor of pituitary follicle-stimulating hormone (FSH) secretion, and later identified as a binding protein for activin.
9 1883364 To explore the role of the Asn-linked carbohydrate chains on the follistatin molecule in regard to the inhibition of FSH secretion and activin binding ability, site-specific mutations were introduced at either or both of the two potential Asn-linked glycosylation sites of human follistatin with 315 amino acids (hFS-315).
10 1883364 When tested for their ability to inhibit FSH secretion and to bind activin, each mutant was found to have a similar property as the non-mutated recombinant hFS-315, suggesting that glycosylation of the follistatin molecule has no effect in these functions.
11 1883364 Follistatin is a monomeric protein originally discovered in ovarian follicular fluid as a suppressor of pituitary follicle-stimulating hormone (FSH) secretion, and later identified as a binding protein for activin.
12 1883364 To explore the role of the Asn-linked carbohydrate chains on the follistatin molecule in regard to the inhibition of FSH secretion and activin binding ability, site-specific mutations were introduced at either or both of the two potential Asn-linked glycosylation sites of human follistatin with 315 amino acids (hFS-315).
13 1883364 When tested for their ability to inhibit FSH secretion and to bind activin, each mutant was found to have a similar property as the non-mutated recombinant hFS-315, suggesting that glycosylation of the follistatin molecule has no effect in these functions.
14 1883364 Follistatin is a monomeric protein originally discovered in ovarian follicular fluid as a suppressor of pituitary follicle-stimulating hormone (FSH) secretion, and later identified as a binding protein for activin.
15 1883364 To explore the role of the Asn-linked carbohydrate chains on the follistatin molecule in regard to the inhibition of FSH secretion and activin binding ability, site-specific mutations were introduced at either or both of the two potential Asn-linked glycosylation sites of human follistatin with 315 amino acids (hFS-315).
16 1883364 When tested for their ability to inhibit FSH secretion and to bind activin, each mutant was found to have a similar property as the non-mutated recombinant hFS-315, suggesting that glycosylation of the follistatin molecule has no effect in these functions.
17 1909791 Follistatin and activin: a potential intrinsic regulatory system within diverse tissues.
18 2036994 Follistatin binds to both activin and inhibin through the common subunit.
19 2036994 Inhibin, activin, and follistatin are three families of polypeptides originally isolated and characterized from ovarian follicular fluid based on their modulation of FSH release from pituitary cell culture.
20 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
21 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
22 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
23 2036994 Follistatin binds to both activin and inhibin through the common subunit.
24 2036994 Inhibin, activin, and follistatin are three families of polypeptides originally isolated and characterized from ovarian follicular fluid based on their modulation of FSH release from pituitary cell culture.
25 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
26 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
27 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
28 2036994 Follistatin binds to both activin and inhibin through the common subunit.
29 2036994 Inhibin, activin, and follistatin are three families of polypeptides originally isolated and characterized from ovarian follicular fluid based on their modulation of FSH release from pituitary cell culture.
30 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
31 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
32 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
33 2036994 Follistatin binds to both activin and inhibin through the common subunit.
34 2036994 Inhibin, activin, and follistatin are three families of polypeptides originally isolated and characterized from ovarian follicular fluid based on their modulation of FSH release from pituitary cell culture.
35 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
36 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
37 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
38 2036994 Follistatin binds to both activin and inhibin through the common subunit.
39 2036994 Inhibin, activin, and follistatin are three families of polypeptides originally isolated and characterized from ovarian follicular fluid based on their modulation of FSH release from pituitary cell culture.
40 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
41 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
42 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
43 2121404 The closed-loop feedback mechanism of ovarian inhibin and pituitary FSH has been joined by possible "inhibin-like" actions of follistatin and FSH-stimulatory effects of activin.
44 2121404 Figure 3 shows a simplistic diagram summarizing our current understanding of inhibin/activin and follistatin action along the hypothalamic-pituitary-gonadal axis.
45 2121404 The closed-loop feedback mechanism of ovarian inhibin and pituitary FSH has been joined by possible "inhibin-like" actions of follistatin and FSH-stimulatory effects of activin.
46 2121404 Figure 3 shows a simplistic diagram summarizing our current understanding of inhibin/activin and follistatin action along the hypothalamic-pituitary-gonadal axis.
47 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
48 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
49 7887917 This finding implies that the carboxylterminal 27 amino acid extension of rhFS-315, which is not present in rhFS-288, affects the binding of follistatin with activin.
50 7887917 These data suggest for the first time that these two structurally related follistatin molecules interact with activin by different modes of binding and, in the presence of heparin, the interaction of rhFS-288 with activin is indistinguishable from that of rhFS-315.
51 7887917 These findings suggest that the heparin binding site of follistatin also contributes to its binding for activin, and heparin may play an important role in the bioactivity of follistatin.
52 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
53 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
54 7887917 This finding implies that the carboxylterminal 27 amino acid extension of rhFS-315, which is not present in rhFS-288, affects the binding of follistatin with activin.
55 7887917 These data suggest for the first time that these two structurally related follistatin molecules interact with activin by different modes of binding and, in the presence of heparin, the interaction of rhFS-288 with activin is indistinguishable from that of rhFS-315.
56 7887917 These findings suggest that the heparin binding site of follistatin also contributes to its binding for activin, and heparin may play an important role in the bioactivity of follistatin.
57 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
58 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
59 7887917 This finding implies that the carboxylterminal 27 amino acid extension of rhFS-315, which is not present in rhFS-288, affects the binding of follistatin with activin.
60 7887917 These data suggest for the first time that these two structurally related follistatin molecules interact with activin by different modes of binding and, in the presence of heparin, the interaction of rhFS-288 with activin is indistinguishable from that of rhFS-315.
61 7887917 These findings suggest that the heparin binding site of follistatin also contributes to its binding for activin, and heparin may play an important role in the bioactivity of follistatin.
62 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
63 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
64 7887917 This finding implies that the carboxylterminal 27 amino acid extension of rhFS-315, which is not present in rhFS-288, affects the binding of follistatin with activin.
65 7887917 These data suggest for the first time that these two structurally related follistatin molecules interact with activin by different modes of binding and, in the presence of heparin, the interaction of rhFS-288 with activin is indistinguishable from that of rhFS-315.
66 7887917 These findings suggest that the heparin binding site of follistatin also contributes to its binding for activin, and heparin may play an important role in the bioactivity of follistatin.
67 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
68 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
69 7887917 This finding implies that the carboxylterminal 27 amino acid extension of rhFS-315, which is not present in rhFS-288, affects the binding of follistatin with activin.
70 7887917 These data suggest for the first time that these two structurally related follistatin molecules interact with activin by different modes of binding and, in the presence of heparin, the interaction of rhFS-288 with activin is indistinguishable from that of rhFS-315.
71 7887917 These findings suggest that the heparin binding site of follistatin also contributes to its binding for activin, and heparin may play an important role in the bioactivity of follistatin.
72 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
73 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
74 8333840 Here, we examined how the protein kinase A (PKA) and protein kinase C (PKC) pathways act and interact to regulate production of these proteins.
75 8333840 Conditioned media were assayed for inhibin and activin by ligand blotting using recombinant human 125I-follistatin and for follistatin by double ligand blotting using cold activin plus 125I-follistatin.
76 8333840 In contrast, GnRH and TPA stimulated activin, and to a lesser degree, inhibin production; significantly, this is the first demonstration of activin dimer production by granulosa cells.
77 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
78 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
79 8333840 Here, we examined how the protein kinase A (PKA) and protein kinase C (PKC) pathways act and interact to regulate production of these proteins.
80 8333840 Conditioned media were assayed for inhibin and activin by ligand blotting using recombinant human 125I-follistatin and for follistatin by double ligand blotting using cold activin plus 125I-follistatin.
81 8333840 In contrast, GnRH and TPA stimulated activin, and to a lesser degree, inhibin production; significantly, this is the first demonstration of activin dimer production by granulosa cells.
82 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
83 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
84 8333840 Here, we examined how the protein kinase A (PKA) and protein kinase C (PKC) pathways act and interact to regulate production of these proteins.
85 8333840 Conditioned media were assayed for inhibin and activin by ligand blotting using recombinant human 125I-follistatin and for follistatin by double ligand blotting using cold activin plus 125I-follistatin.
86 8333840 In contrast, GnRH and TPA stimulated activin, and to a lesser degree, inhibin production; significantly, this is the first demonstration of activin dimer production by granulosa cells.
87 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
88 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
89 8333840 Here, we examined how the protein kinase A (PKA) and protein kinase C (PKC) pathways act and interact to regulate production of these proteins.
90 8333840 Conditioned media were assayed for inhibin and activin by ligand blotting using recombinant human 125I-follistatin and for follistatin by double ligand blotting using cold activin plus 125I-follistatin.
91 8333840 In contrast, GnRH and TPA stimulated activin, and to a lesser degree, inhibin production; significantly, this is the first demonstration of activin dimer production by granulosa cells.
92 8462476 Follistatin, a monomeric protein originally isolated from ovarian follicular fluid, is now believed to be a major local regulator of the multifaceted actions of activin by virtue of its activin-binding properties.
93 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
94 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
95 8472873 Since activin regulates hormone secretion and cell differentiation, the importance of understanding the mechanisms regulating the synthesis of its binding protein, follistatin, is evident.
96 8472873 Co-treatment with forskolin and TPA resulted in a 6.4-fold induction in its promoter activity, suggesting that two distinct signal transduction pathways, the cAMP-dependent protein kinase-A pathway and diacylglycerol-dependent protein kinase-C pathway, act coordinately to modulate follistatin gene transcription.
97 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
98 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
99 8472873 Since activin regulates hormone secretion and cell differentiation, the importance of understanding the mechanisms regulating the synthesis of its binding protein, follistatin, is evident.
100 8472873 Co-treatment with forskolin and TPA resulted in a 6.4-fold induction in its promoter activity, suggesting that two distinct signal transduction pathways, the cAMP-dependent protein kinase-A pathway and diacylglycerol-dependent protein kinase-C pathway, act coordinately to modulate follistatin gene transcription.
101 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
102 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
103 8472873 Since activin regulates hormone secretion and cell differentiation, the importance of understanding the mechanisms regulating the synthesis of its binding protein, follistatin, is evident.
104 8472873 Co-treatment with forskolin and TPA resulted in a 6.4-fold induction in its promoter activity, suggesting that two distinct signal transduction pathways, the cAMP-dependent protein kinase-A pathway and diacylglycerol-dependent protein kinase-C pathway, act coordinately to modulate follistatin gene transcription.
105 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
106 8477666 For lack of evidence to the contrary, it is now believed that the FSH-suppressing actions of follistatin are due to its ability to bind endogenous pituitary activin.
107 8477666 Therefore, given that follistatin is produced within anterior pituitary tissue, and considering the potentially important function of follistatin to modulate activin bioactivity, we sought to gain insights into the regulation of follistatin gene expression in the anterior pituitary gland of adult female rats.
108 8477666 Because increased steady state follistatin mRNA levels in the latter two instances were associated with selective FSH hypersecretion, and such hypersecretion was previously shown to be dependent to a significant degree on pituitary activin, we next tested the hypothesis that increased pituitary follistatin gene expression is mediated by activin.
109 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
110 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
111 8477666 For lack of evidence to the contrary, it is now believed that the FSH-suppressing actions of follistatin are due to its ability to bind endogenous pituitary activin.
112 8477666 Therefore, given that follistatin is produced within anterior pituitary tissue, and considering the potentially important function of follistatin to modulate activin bioactivity, we sought to gain insights into the regulation of follistatin gene expression in the anterior pituitary gland of adult female rats.
113 8477666 Because increased steady state follistatin mRNA levels in the latter two instances were associated with selective FSH hypersecretion, and such hypersecretion was previously shown to be dependent to a significant degree on pituitary activin, we next tested the hypothesis that increased pituitary follistatin gene expression is mediated by activin.
114 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
115 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
116 8477666 For lack of evidence to the contrary, it is now believed that the FSH-suppressing actions of follistatin are due to its ability to bind endogenous pituitary activin.
117 8477666 Therefore, given that follistatin is produced within anterior pituitary tissue, and considering the potentially important function of follistatin to modulate activin bioactivity, we sought to gain insights into the regulation of follistatin gene expression in the anterior pituitary gland of adult female rats.
118 8477666 Because increased steady state follistatin mRNA levels in the latter two instances were associated with selective FSH hypersecretion, and such hypersecretion was previously shown to be dependent to a significant degree on pituitary activin, we next tested the hypothesis that increased pituitary follistatin gene expression is mediated by activin.
119 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
120 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
121 8477666 For lack of evidence to the contrary, it is now believed that the FSH-suppressing actions of follistatin are due to its ability to bind endogenous pituitary activin.
122 8477666 Therefore, given that follistatin is produced within anterior pituitary tissue, and considering the potentially important function of follistatin to modulate activin bioactivity, we sought to gain insights into the regulation of follistatin gene expression in the anterior pituitary gland of adult female rats.
123 8477666 Because increased steady state follistatin mRNA levels in the latter two instances were associated with selective FSH hypersecretion, and such hypersecretion was previously shown to be dependent to a significant degree on pituitary activin, we next tested the hypothesis that increased pituitary follistatin gene expression is mediated by activin.
124 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
125 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
126 8477666 For lack of evidence to the contrary, it is now believed that the FSH-suppressing actions of follistatin are due to its ability to bind endogenous pituitary activin.
127 8477666 Therefore, given that follistatin is produced within anterior pituitary tissue, and considering the potentially important function of follistatin to modulate activin bioactivity, we sought to gain insights into the regulation of follistatin gene expression in the anterior pituitary gland of adult female rats.
128 8477666 Because increased steady state follistatin mRNA levels in the latter two instances were associated with selective FSH hypersecretion, and such hypersecretion was previously shown to be dependent to a significant degree on pituitary activin, we next tested the hypothesis that increased pituitary follistatin gene expression is mediated by activin.
129 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
130 8890726 Mean +/- SEM values of serum activin A were significantly higher in patients with preterm labor and gestational diabetes than in controls (p < 0.01), showing a significant decrease following insulin therapy in diabetic patients (p < 0.01).
131 9436357 The TGF-beta family, the activin family, and bone morphogenic proteins belong to the TGF-beta superfamily.
132 9436357 Smad family members (Smad 1, Smad 2, Smad 3 and Smad 4) are expressed in the cultured retinal pigmant epithelial cell line (D407), in which TGF-beta and activin A stimulate the translocation of Smad 2, but not Smad 1 into nuclei, whereas bone morphogenetic protein (BMP) stimulates that of Smad 1, but not Smad 2.
133 9436357 The TGF-beta family, the activin family, and bone morphogenic proteins belong to the TGF-beta superfamily.
134 9436357 Smad family members (Smad 1, Smad 2, Smad 3 and Smad 4) are expressed in the cultured retinal pigmant epithelial cell line (D407), in which TGF-beta and activin A stimulate the translocation of Smad 2, but not Smad 1 into nuclei, whereas bone morphogenetic protein (BMP) stimulates that of Smad 1, but not Smad 2.
135 9524732 Regulation of pulsatile secretion of growth hormone (GH) relies on hypothalamic neuronal loops, major transmitters involved in their operation are growth hormone releasing hormone (GHRH) synthetized mostly in arcuate nucleus (ARC) neurons, and somatostatin (SRIH), synthetized both in hypothalamus periventricular (PVe) and ARC neurons. 2.
136 9524732 Other neuropeptides synthetized in ARC neurons, such as galanin, or in ARC interneurons, such as neuropeptide Y (NPY), are able to modulate synthesis and release of GHRH and SRIH into the hypothalamohypophyseal portal system. 3.
137 9524732 At the pituitary level, major neurotransmitters regulating GH cells act on receptors of the VIP/PACAP/GHRH family and of the somatostatin family, in particular, sst2 and sst3.
138 9524732 Regulation and differentiation of somatotropes also depend upon paracrine processes within the pituitary itself and involve growth factors and several neuropeptides, for instance, vasoactive intestinal peptide, angiotensin 2, endothelin, and activin. 10.
139 10102170 Based on data from patients with established disease, with the involvement of various organ systems, potential candidate markers would include renal function (kallikrein-creatinine); coagulation and fibrinolytic systems and platelet activation (platelet volume); markers of vascular function (fibronectin, prostacyclin, thromboxane) and oxidant stress (lipid peroxides, 8-isoprostane, antioxidants, anticardiolipin antibodies, hemoglobin, iron, transferrin, homocysteine, hypertriglyceridemia, albumin isoforms); placental peptide hormones (CRH, CRHbp, activin, inhibin, hCG); vascular resistance (uteroplacental flow velocity waveforms); genetic markers; insulin resistance; and glucose intolerance.
140 10334306 Dexamethasone (Dx) converts them to exocrine cells, whereas activin A (Act) converts them into endocrine cells expressing pancreatic polypeptide.
141 10334306 A combination of Act and betacellulin (BTC) converts them further into insulin-secreting cells.
142 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
143 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
144 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
145 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
146 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
147 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
148 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
149 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
150 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
151 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
152 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
153 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
154 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
155 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
156 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
157 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
158 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
159 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
160 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
161 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
162 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
163 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
164 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
165 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
166 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
167 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
168 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
169 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
170 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
171 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
172 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
173 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
174 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
175 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
176 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
177 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
178 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
179 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
180 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
181 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
182 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
183 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
184 10853708 Previous studies showed that activin A is expressed by insulin-positive B cells of human pancreatic islets, and women with gestational diabetes have higher serum activin A levels than healthy pregnant women at the same gestational age.
185 10853708 The present study aimed to evaluate the effect of activin A on insulin secretion from cultured human pancreatic islets.
186 10853708 In absence of glucose, activin A did not modify insulin secretion at the different concentrations used.
187 10853708 In absence of activin A, 8.3 mM and 16.7 mM glucose significantly increased insulin secretion, with a dose-dependent pattern.
188 10853708 In presence of a non stimulatory concentration of glucose (3.3 mM), activin A significantly increased insulin secretion starting from low concentration (0.1 nM).
189 10853708 Furthermore, the addition of activin A to 8.3 mM and 16.7 mM glucose induced an additional effect of the dose-dependent glucose-mediated insulin secretion (p<0.001).
190 10853708 The present data could support a role for activin A in human endocrine pancreas in modulating insulin response to different glucose concentrations.
191 11249068 PDX-1 plays a critical role in pancreatic development and insulin secretion.
192 11249068 The ARIP and ARIP/PDX-1 cells were treated with known growth and differentiation factors including hepatocyte growth factor, activin A, betacellulin, reg, INGAP, nicotinamide, and retinoic acid.
193 11272164 Pancreatic AR42J cells possess both exocrine and neuroendocrine properties and convert to insulin-producing cells upon treatment with activin A and hepatocyte growth factor (HGF).
194 11272164 These two factors were not detected in naive cells, whereas their mRNA levels were markedly increased after treatment with activin A and HGF.
195 11272164 Furthermore, introduction of antisense Pax4 did not affect the conversion into insulin-producing cells induced by activin A and HGF.
196 11272164 In contrast, transfection of neurogenin3 induced morphological changes similar to those induced by activin A.
197 11272164 Conversely, introduction of antisense neurogenin3 blocked the differentiation of AR42J cells induced by activin A and HGF.
198 11272164 These results indicate that activin A regulates the expression of neurogenin3, which is critical for the differentiation of AR42J into endocrine cells.
199 11272164 Pancreatic AR42J cells possess both exocrine and neuroendocrine properties and convert to insulin-producing cells upon treatment with activin A and hepatocyte growth factor (HGF).
200 11272164 These two factors were not detected in naive cells, whereas their mRNA levels were markedly increased after treatment with activin A and HGF.
201 11272164 Furthermore, introduction of antisense Pax4 did not affect the conversion into insulin-producing cells induced by activin A and HGF.
202 11272164 In contrast, transfection of neurogenin3 induced morphological changes similar to those induced by activin A.
203 11272164 Conversely, introduction of antisense neurogenin3 blocked the differentiation of AR42J cells induced by activin A and HGF.
204 11272164 These results indicate that activin A regulates the expression of neurogenin3, which is critical for the differentiation of AR42J into endocrine cells.
205 11272164 Pancreatic AR42J cells possess both exocrine and neuroendocrine properties and convert to insulin-producing cells upon treatment with activin A and hepatocyte growth factor (HGF).
206 11272164 These two factors were not detected in naive cells, whereas their mRNA levels were markedly increased after treatment with activin A and HGF.
207 11272164 Furthermore, introduction of antisense Pax4 did not affect the conversion into insulin-producing cells induced by activin A and HGF.
208 11272164 In contrast, transfection of neurogenin3 induced morphological changes similar to those induced by activin A.
209 11272164 Conversely, introduction of antisense neurogenin3 blocked the differentiation of AR42J cells induced by activin A and HGF.
210 11272164 These results indicate that activin A regulates the expression of neurogenin3, which is critical for the differentiation of AR42J into endocrine cells.
211 11272164 Pancreatic AR42J cells possess both exocrine and neuroendocrine properties and convert to insulin-producing cells upon treatment with activin A and hepatocyte growth factor (HGF).
212 11272164 These two factors were not detected in naive cells, whereas their mRNA levels were markedly increased after treatment with activin A and HGF.
213 11272164 Furthermore, introduction of antisense Pax4 did not affect the conversion into insulin-producing cells induced by activin A and HGF.
214 11272164 In contrast, transfection of neurogenin3 induced morphological changes similar to those induced by activin A.
215 11272164 Conversely, introduction of antisense neurogenin3 blocked the differentiation of AR42J cells induced by activin A and HGF.
216 11272164 These results indicate that activin A regulates the expression of neurogenin3, which is critical for the differentiation of AR42J into endocrine cells.
217 11272164 Pancreatic AR42J cells possess both exocrine and neuroendocrine properties and convert to insulin-producing cells upon treatment with activin A and hepatocyte growth factor (HGF).
218 11272164 These two factors were not detected in naive cells, whereas their mRNA levels were markedly increased after treatment with activin A and HGF.
219 11272164 Furthermore, introduction of antisense Pax4 did not affect the conversion into insulin-producing cells induced by activin A and HGF.
220 11272164 In contrast, transfection of neurogenin3 induced morphological changes similar to those induced by activin A.
221 11272164 Conversely, introduction of antisense neurogenin3 blocked the differentiation of AR42J cells induced by activin A and HGF.
222 11272164 These results indicate that activin A regulates the expression of neurogenin3, which is critical for the differentiation of AR42J into endocrine cells.
223 11272164 Pancreatic AR42J cells possess both exocrine and neuroendocrine properties and convert to insulin-producing cells upon treatment with activin A and hepatocyte growth factor (HGF).
224 11272164 These two factors were not detected in naive cells, whereas their mRNA levels were markedly increased after treatment with activin A and HGF.
225 11272164 Furthermore, introduction of antisense Pax4 did not affect the conversion into insulin-producing cells induced by activin A and HGF.
226 11272164 In contrast, transfection of neurogenin3 induced morphological changes similar to those induced by activin A.
227 11272164 Conversely, introduction of antisense neurogenin3 blocked the differentiation of AR42J cells induced by activin A and HGF.
228 11272164 These results indicate that activin A regulates the expression of neurogenin3, which is critical for the differentiation of AR42J into endocrine cells.
229 11334431 No evidence for linkage or for diabetes-associated mutations in the activin type 2B receptor gene (ACVR2B) in French patients with mature-onset diabetes of the young or type 2 diabetes.
230 11334431 For transmembrane signaling, activins bind directly to activin receptor type 2A (ACVR2A) or 2B (ACVR2B).
231 11334431 No evidence for linkage or for diabetes-associated mutations in the activin type 2B receptor gene (ACVR2B) in French patients with mature-onset diabetes of the young or type 2 diabetes.
232 11334431 For transmembrane signaling, activins bind directly to activin receptor type 2A (ACVR2A) or 2B (ACVR2B).
233 11675415 Bone morphogenetic protein-7 (BMP7), a member of the transforming growth factor-beta (TGF-beta) superfamily of cytokines, is highly expressed in renal tubules and generally promotes maintenance of epithelial phenotype.
234 11675415 Renal expression of the high-affinity BMP type II receptor and the type I receptor Alk2 (activin receptor-like kinase-2) decreased.
235 11675415 Alk3 tended to decrease, but Alk6 remained unchanged.
236 11675415 In cultured tubular cells, TGF-beta reduced BMP7 and Alk3 expression and increased gremlin but did not interrupt BMP7-induced activation of smad5 or Erk1 and -2.
237 11675415 In contrast, BMP7 did not alter TGF-beta expression.
238 11675415 Neutralization of endogenous BMP7 in cultured proximal tubular cells raised the expression of fibronectin and tended to increase collagen alpha(1) III mRNA levels.
239 11675415 In conclusion, in experimental diabetic nephropathy, renal tubular BMP7 and some of its receptors decreased and gremlin, a secreted BMP antagonist, increased.
240 12114736 We examined the immunohistochemical localization of activin A/erythroid differentiation factor (EDF) in the pancreases of normal and diabetic rats with insulin-dependent diabetes mellitus or noninsulin-dependent diabetes mellitus to elucidate how activin A/EDF modulates insulin secretion.
241 12114736 In both the normal and the diabetic pancreas, all of the cells staining with antirecombinant human (rh) activin A/EDF antiserum were insulin-producing B-cells, and they gradually decreased in number with the development of diabetic changes in both types of diabetic rats.
242 12114736 No rh activin AIEDF immunoreactivity was detected in A-, D-, or pancreatic polypeptide (PR) cells in the islets, or in the exocrine cells.
243 12114736 The in situ hybridization (ISH) method showed that activin A/EDF mRNA is localized in activin A/EDF-positive cells.
244 12114736 These data indicated that activin A/EDF localizes in insulin-producing B-cells of normal and diabetic pancreases, and may act as an autocrine modulator of insulin secretion.
245 12114736 We examined the immunohistochemical localization of activin A/erythroid differentiation factor (EDF) in the pancreases of normal and diabetic rats with insulin-dependent diabetes mellitus or noninsulin-dependent diabetes mellitus to elucidate how activin A/EDF modulates insulin secretion.
246 12114736 In both the normal and the diabetic pancreas, all of the cells staining with antirecombinant human (rh) activin A/EDF antiserum were insulin-producing B-cells, and they gradually decreased in number with the development of diabetic changes in both types of diabetic rats.
247 12114736 No rh activin AIEDF immunoreactivity was detected in A-, D-, or pancreatic polypeptide (PR) cells in the islets, or in the exocrine cells.
248 12114736 The in situ hybridization (ISH) method showed that activin A/EDF mRNA is localized in activin A/EDF-positive cells.
249 12114736 These data indicated that activin A/EDF localizes in insulin-producing B-cells of normal and diabetic pancreases, and may act as an autocrine modulator of insulin secretion.
250 12114736 We examined the immunohistochemical localization of activin A/erythroid differentiation factor (EDF) in the pancreases of normal and diabetic rats with insulin-dependent diabetes mellitus or noninsulin-dependent diabetes mellitus to elucidate how activin A/EDF modulates insulin secretion.
251 12114736 In both the normal and the diabetic pancreas, all of the cells staining with antirecombinant human (rh) activin A/EDF antiserum were insulin-producing B-cells, and they gradually decreased in number with the development of diabetic changes in both types of diabetic rats.
252 12114736 No rh activin AIEDF immunoreactivity was detected in A-, D-, or pancreatic polypeptide (PR) cells in the islets, or in the exocrine cells.
253 12114736 The in situ hybridization (ISH) method showed that activin A/EDF mRNA is localized in activin A/EDF-positive cells.
254 12114736 These data indicated that activin A/EDF localizes in insulin-producing B-cells of normal and diabetic pancreases, and may act as an autocrine modulator of insulin secretion.
255 12114736 We examined the immunohistochemical localization of activin A/erythroid differentiation factor (EDF) in the pancreases of normal and diabetic rats with insulin-dependent diabetes mellitus or noninsulin-dependent diabetes mellitus to elucidate how activin A/EDF modulates insulin secretion.
256 12114736 In both the normal and the diabetic pancreas, all of the cells staining with antirecombinant human (rh) activin A/EDF antiserum were insulin-producing B-cells, and they gradually decreased in number with the development of diabetic changes in both types of diabetic rats.
257 12114736 No rh activin AIEDF immunoreactivity was detected in A-, D-, or pancreatic polypeptide (PR) cells in the islets, or in the exocrine cells.
258 12114736 The in situ hybridization (ISH) method showed that activin A/EDF mRNA is localized in activin A/EDF-positive cells.
259 12114736 These data indicated that activin A/EDF localizes in insulin-producing B-cells of normal and diabetic pancreases, and may act as an autocrine modulator of insulin secretion.
260 12114736 We examined the immunohistochemical localization of activin A/erythroid differentiation factor (EDF) in the pancreases of normal and diabetic rats with insulin-dependent diabetes mellitus or noninsulin-dependent diabetes mellitus to elucidate how activin A/EDF modulates insulin secretion.
261 12114736 In both the normal and the diabetic pancreas, all of the cells staining with antirecombinant human (rh) activin A/EDF antiserum were insulin-producing B-cells, and they gradually decreased in number with the development of diabetic changes in both types of diabetic rats.
262 12114736 No rh activin AIEDF immunoreactivity was detected in A-, D-, or pancreatic polypeptide (PR) cells in the islets, or in the exocrine cells.
263 12114736 The in situ hybridization (ISH) method showed that activin A/EDF mRNA is localized in activin A/EDF-positive cells.
264 12114736 These data indicated that activin A/EDF localizes in insulin-producing B-cells of normal and diabetic pancreases, and may act as an autocrine modulator of insulin secretion.
265 12606518 Following treatment of AR42J cells with activin A and hepatocyte growth factor, the protein levels of h1-calponin decreased in a time-dependent manner during the course of the cell differentiation.
266 14514635 Nestin was visualized in the platelet endothelial cell adhesion molecule and alpha smooth muscle actin-positive blood vessels and colocalized with vimentin in the interstitium.
267 14514635 Nestin was not observed in pan cytokeratin (pCK)-positive ductal epithelium or insulin cells.
268 14514635 Purified nestin+ cells also coexpressed vimentin and lacked pCK immunoreactivity.
269 14514635 Exposure of selected nestin+ cells to nicotinamide, hepatocyte growth factor/scatter factor, betacellulin, activin A, or exendin-4 failed to induce pancreatic and duodenal homeobox gene-1 or insulin message as determined by RT-PCR.
270 14514635 Transplantation of nestin+ cells and fetal pancreatic fibroblasts into athymic mice also failed to result in the development of beta-cells, whereas nestin- fetal pancreatic epithelial cells gave rise to functional insulin-secreting beta-cells.
271 14732718 Type IV collagen is transcriptionally regulated by Smad1 under advanced glycation end product (AGE) stimulation.
272 14732718 To elucidate the interaction between transforming growth factor-beta and Smad1, we investigated whether activin receptor-liked kinase1 (ALK1) was involved in this regulation.
273 14732718 We also demonstrated that Smad1 and ALK1 were highly expressed in human diabetic nephropathy.
274 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
275 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
276 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
277 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
278 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
279 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
280 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
281 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
282 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
283 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
284 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
285 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
286 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
287 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
288 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
289 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
290 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
291 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
292 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
293 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
294 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
295 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
296 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
297 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
298 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
299 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
300 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
301 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
302 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
303 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
304 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
305 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
306 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
307 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
308 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
309 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
310 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
311 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
312 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
313 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
314 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
315 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
316 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
317 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
318 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
319 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
320 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
321 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
322 14988244 In the present study, we used neonatal rats treated with streptozotocin (STZ) to investigate the effects of activin A and BTC on regeneration of pancreatic beta-cells.
323 14988244 One-day-old Sprague-Dawley rats were injected with STZ (85 micro g/g) and then administered for 7 days with activin A and/or BTC.
324 14988244 Treatment with activin A and BTC significantly reduced the plasma glucose concentration and the plasma glucose response to intraperitoneal glucose loading.
325 14988244 The pancreatic insulin content and beta-cell mass in rats treated with activin A and BTC were significantly increased compared with the control group on day 8 and at 2 months.
326 14988244 Treatment with activin A and BTC significantly increased the DNA synthesis in preexisting beta-cells, ductal cells, and delta-cells.
327 14988244 The number of islet cell-like clusters (ICCs) and islets was significantly increased by treatment with activin A and BTC.
328 14988244 In addition, the number of insulin/somatostatin-positive cells and pancreatic duodenal homeobox-1/somatostatin-positive cells was significantly increased.
329 14988244 These results indicate that, in neonatal STZ-treated rats, a combination of activin A and BTC promoted regeneration of pancreatic beta-cells and improved glucose metabolism in adults.
330 15154911 The use of mice with a targeted deletion of Smad3, one of the two homologous proteins which signals from TGF-beta/activin, shows that most of the pro-fibrotic activities of TGF-beta are mediated by Smad3.
331 15154911 Smad3 null inflammatory cells and fibroblasts do not respond to the chemotactic effects of TGF-beta and do not autoinduce TGF-beta.
332 15154911 The loss of Smad3 also interferes with TGF-beta-mediated induction of EMT and genes for collagens, plasminogen activator inhibitor-1 and the tissue inhibitor of metalloprotease-1.
333 15154911 Additionally, inhibition of Smad3 by overexpression of the inhibitory Smad7 protein or by treatment with the small molecule, halofuginone, dramatically reduces responses in animal models of kidney, lung, liver and radiation-induced fibrosis.
334 15180456 Activins, myostatin and related TGF-beta family members as novel therapeutic targets for endocrine, metabolic and immune disorders.
335 15180456 Recent studies have revealed that activins and myostatin signal through activin type II receptors (ActRIIA and ActRIIB) and their activities are regulated by extracellular binding proteins, follistatins and follistatin-related gene (FLRG).
336 15232060 The FSH-beta and GnRH-receptor genes are up-regulated by pituitary activin and down-regulated by pituitary follistatin, and circulating inhibin disrupts this local regulation by functioning as an endogenous competitor of the activin receptor.
337 15232060 There is evidence that the intra-pituitary regulation of FSH-beta and GnRH-receptor gene expression may activate pubertal maturation in male rats.
338 15277382 Interestingly, the expression of endogenous cellular inhibitors of activin signaling, follistatin and Cripto, were also found to be augmented.
339 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
340 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
341 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
342 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
343 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
344 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
345 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
346 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
347 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
348 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
349 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
350 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
351 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
352 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
353 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
354 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
355 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
356 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
357 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
358 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
359 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
360 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
361 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
362 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
363 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
364 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
365 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
366 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
367 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
368 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
369 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
370 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
371 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
372 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
373 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
374 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
375 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
376 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
377 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
378 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
379 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
380 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
381 15319828 Inhibin, activin, and follistatin were first identified as gonadal hormones that could exert selective effects on follicle-stimulating hormone (FSH) secretion without affecting luteinizing hormone (LH).
382 15319828 Although the primary source of inhibin remains the gonad, both activin and follistatin are produced in extragonadal tissues and can exert effects on FSH through an autocrine-paracrine mechanism.
383 15319828 Second, activin up-regulates gonadotropin-releasing hormone receptor (GnRHR) gene expression, leading to alterations in the synthesis and release of both gonadotropins in response to GnRH.
384 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
385 15319828 Both inhibin and follistatin can negatively regulate these effects by preventing activin binding to the activin receptor at the cell membrane and blocking activation of downstream signal transduction pathways.
386 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
387 15319828 The mechanisms of inhibin and activin signaling are also reported, with particular attention to developments in our understanding of inhibin receptor action and activin-induced transcriptional regulation of the FSHbeta gene promoter.
388 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
389 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
390 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
391 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
392 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
393 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
394 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
395 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
396 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
397 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
398 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
399 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
400 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
401 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
402 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
403 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
404 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
405 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
406 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
407 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
408 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
409 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
410 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
411 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
412 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
413 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
414 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
415 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
416 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
417 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
418 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
419 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
420 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
421 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
422 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
423 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
424 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
425 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
426 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
427 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
428 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
429 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
430 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
431 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
432 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
433 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
434 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
435 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
436 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
437 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
438 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
439 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
440 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
441 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
442 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
443 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
444 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
445 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
446 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
447 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
448 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
449 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
450 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
451 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
452 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
453 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
454 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
455 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
456 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
457 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
458 15375186 Synergy between activin A and gonadotropin-releasing hormone in transcriptional activation of the rat follicle-stimulating hormone-beta gene.
459 15375186 Both activin and GnRH can independently stimulate expression of the FSHbeta subunit gene.
460 15375186 In this study, we used the gonadotrope-derived LbetaT2 cell line to investigate the potential interaction between activin and GnRH in regulating the transcriptional activity of the rat FSHbeta gene promoter.
461 15375186 Activin A and GnRH synergistically enhanced rat FSHbeta transcriptional activity.
462 15375186 Overexpression of SMAD3 (mediator of decapentaplegic-related protein 3), but not of SMAD2, increased transcriptional activation of the rat (r) FSHbeta gene promoter, which was further enhanced by the combined overexpression of SMAD3 and 4 (3+4).
463 15375186 The stimulatory effects of SMAD3 overexpression were localized to -472/-256 of the rFSHbeta gene promoter, and activin- and GnRH-responsive proteins were shown to bind to region -284/-252.
464 15375186 Mutation of two bases located in the center of this palindrome effectively abrogated SMAD4 binding, markedly reduced SMAD3 and 3+4 stimulation of the rFSHbeta gene promoter, and significantly decreased the synergistic enhancement of promoter activity by both activin A and GnRH, and SMAD3 and GnRH.
465 15375186 Blockade of the MAPK-signaling pathway did not significantly affect the response to combined stimulation with activin and GnRH.
466 15375186 In contrast, interference with SMAD3 signaling caused a significant reduction in activin and GnRH synergy.
467 15375186 The results indicate that SMAD3 plays an important role in the synergistic effects of activin and GnRH and demonstrate that this synergy is mediated by a palindromic cis-element located at -266/-259 of the rFSHbeta gene promoter.
468 15504962 Interplay of glucagon-like peptide-1 and transforming growth factor-beta signaling in insulin-positive differentiation of AR42J cells.
469 15504962 Exogenous activin, possibly working through intracellular smad 2 and/or smad 3, as well as exogenous exendin-4 (a long-acting glucagon-like peptide-1 agonist) have both been shown to induce insulin-positive/endocrine differentiation in AR42J cells.
470 15504962 In particular, insulin-positive differentiation seems to entail an exendin-4-induced drop in smad 2 and elevation in smad 3 in RNA levels.
471 15504962 The coapplication of exogenous exendin-4 and, specifically, low-dose exogenous TGF-beta1 led to a dramatic 20-fold increase in insulin mRNA levels, supporting a novel synergistic and codependent relationship between exendin-4 signaling and TGF-beta isoform signaling.
472 15849173 Here we show that a simple three-step experimental approach based on the combination induction by activin A, all-trans retinoic acid, and other mature factors is able to induce murine ESCs to differentiate into insulin-producing cells in 2 weeks, and that insulin release of these induced cells is regulated by the glucose concentration.
473 16020542 Cross-talk between bone morphogenetic protein and transforming growth factor-beta signaling is essential for exendin-4-induced insulin-positive differentiation of AR42J cells.
474 16020542 We found that the canonical intracellular mediators of BMP signaling, Smad-1 and Smad-8, were significantly elevated in AR42J cells undergoing insulin-positive differentiation in response to exendin-4 treatment, suggesting a role for BMP signaling in beta-cell formation.
475 16020542 Similarly, endogenous BMP-2 ligand and ALK-1 receptor (activin receptor-like kinase-1; known to activate Smads 1 and 8) mRNAs were specifically up-regulated in exendin-4-treated AR42J cells.
476 16020542 Surprisingly, Smad-1 and Smad-8 levels were suppressed by the addition of BMP-soluble receptor inhibition of BMP ligand binding to its receptor.
477 16020542 BMP-2 ligand antisense also strongly inhibited Smad-1 and Smad-8 expression, again with the abolition of insulin-positive differentiation.
478 16020542 In short, BMP signaling may represent a novel downstream target of exendin-4 (glucagon-like peptide 1) signaling and potentially serve as an upstream regulator of transforming growth factor-beta isoform signaling to differentiate the acinar-like AR42J cells into insulin-secreting cells.
479 16123344 We have previously demonstrated that the expression of the beta-cell transcription factor pancreatic duodenal homeobox 1 (PDX-1) in human fetal liver cells activates multiple aspects of the beta-cell phenotype.
480 16123344 Cells cultured with activin A in serum-free medium upregulated expression of NeuroD and Nkx2.2 and downregulated paired box homeotic gene 6 (PAX-6).
481 16123344 Glucokinase and prohormone convertase 1/3 were also upregulated, whereas pancreatic polypeptide and glucagon as well as liver markers were downregulated.
482 16934249 Furthermore, pGL3.hINS-363 3x shows significant promoter activity in differentiated AR42J cells that can produce insulin after activin A and betacellulin treatment.
483 17229845 FSTL3 deletion reveals roles for TGF-beta family ligands in glucose and fat homeostasis in adults.
484 17229845 Activin and myostatin are related members of the TGF-beta growth factor superfamily.
485 17229845 FSTL3 (Follistatin-like 3) is an activin and myostatin antagonist whose physiological role in adults remains to be determined.
486 17229845 We found that homozygous FSTL3 knockout adults developed a distinct group of metabolic phenotypes, including increased pancreatic islet number and size, beta cell hyperplasia, decreased visceral fat mass, improved glucose tolerance, and enhanced insulin sensitivity, changes that might benefit obese, insulin-resistant patients.
487 17229845 This combination of phenotypes appears to arise from increased activin and myostatin bioactivity in specific tissues resulting from the absence of the FSTL3 antagonist.
488 17229845 Reduced visceral fat is consistent with a role for increased myostatin action in regulating fat deposition, which, in turn, may be partly responsible for the enhanced glucose tolerance and insulin sensitivity.
489 17229845 Our results demonstrate that FSTL3 regulation of activin and myostatin is critical for normal adult metabolic homeostasis, suggesting that pharmacological manipulation of FSTL3 activity might simultaneously reduce visceral adiposity, increase beta cell mass, and improve insulin sensitivity.
490 17229845 FSTL3 deletion reveals roles for TGF-beta family ligands in glucose and fat homeostasis in adults.
491 17229845 Activin and myostatin are related members of the TGF-beta growth factor superfamily.
492 17229845 FSTL3 (Follistatin-like 3) is an activin and myostatin antagonist whose physiological role in adults remains to be determined.
493 17229845 We found that homozygous FSTL3 knockout adults developed a distinct group of metabolic phenotypes, including increased pancreatic islet number and size, beta cell hyperplasia, decreased visceral fat mass, improved glucose tolerance, and enhanced insulin sensitivity, changes that might benefit obese, insulin-resistant patients.
494 17229845 This combination of phenotypes appears to arise from increased activin and myostatin bioactivity in specific tissues resulting from the absence of the FSTL3 antagonist.
495 17229845 Reduced visceral fat is consistent with a role for increased myostatin action in regulating fat deposition, which, in turn, may be partly responsible for the enhanced glucose tolerance and insulin sensitivity.
496 17229845 Our results demonstrate that FSTL3 regulation of activin and myostatin is critical for normal adult metabolic homeostasis, suggesting that pharmacological manipulation of FSTL3 activity might simultaneously reduce visceral adiposity, increase beta cell mass, and improve insulin sensitivity.
497 17229845 FSTL3 deletion reveals roles for TGF-beta family ligands in glucose and fat homeostasis in adults.
498 17229845 Activin and myostatin are related members of the TGF-beta growth factor superfamily.
499 17229845 FSTL3 (Follistatin-like 3) is an activin and myostatin antagonist whose physiological role in adults remains to be determined.
500 17229845 We found that homozygous FSTL3 knockout adults developed a distinct group of metabolic phenotypes, including increased pancreatic islet number and size, beta cell hyperplasia, decreased visceral fat mass, improved glucose tolerance, and enhanced insulin sensitivity, changes that might benefit obese, insulin-resistant patients.
501 17229845 This combination of phenotypes appears to arise from increased activin and myostatin bioactivity in specific tissues resulting from the absence of the FSTL3 antagonist.
502 17229845 Reduced visceral fat is consistent with a role for increased myostatin action in regulating fat deposition, which, in turn, may be partly responsible for the enhanced glucose tolerance and insulin sensitivity.
503 17229845 Our results demonstrate that FSTL3 regulation of activin and myostatin is critical for normal adult metabolic homeostasis, suggesting that pharmacological manipulation of FSTL3 activity might simultaneously reduce visceral adiposity, increase beta cell mass, and improve insulin sensitivity.
504 17267584 Pioglitazone induces apoptosis in human vascular smooth muscle cells from diabetic patients involving the transforming growth factor-beta/activin receptor-like kinase-4/5/7/Smad2 signaling pathway.
505 17267584 Here, we aimed to study whether pioglitazone was able to induce apoptosis in VSMC from diabetic patients (DP) and, if so, whether the transforming growth factor (TGF)-beta1/Smad-2 pathway was involved.
506 17267584 This apoptotic effect was inhibited by the activin receptor-like kinase-4/5/7/Smad2 inhibitor 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide (SB-431542), denoting that the TGF-beta1/Smad-2 pathway was involved.
507 17267584 Pioglitazone rapidly increased the extracellular TGF-beta1 levels and concomitantly induced phosphorylation of Smad2 in VSMC from DP and NDP.
508 17267584 Pioglitazone induces apoptosis in human vascular smooth muscle cells from diabetic patients involving the transforming growth factor-beta/activin receptor-like kinase-4/5/7/Smad2 signaling pathway.
509 17267584 Here, we aimed to study whether pioglitazone was able to induce apoptosis in VSMC from diabetic patients (DP) and, if so, whether the transforming growth factor (TGF)-beta1/Smad-2 pathway was involved.
510 17267584 This apoptotic effect was inhibited by the activin receptor-like kinase-4/5/7/Smad2 inhibitor 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide (SB-431542), denoting that the TGF-beta1/Smad-2 pathway was involved.
511 17267584 Pioglitazone rapidly increased the extracellular TGF-beta1 levels and concomitantly induced phosphorylation of Smad2 in VSMC from DP and NDP.
512 17272496 Concomitantly, downregulation of the pancreas marker Pdx1 was recorded in activin-treated EBs, a phenomenon that was prevented by antagonizing Hedgehog signaling with Hedgehog interacting protein.
513 17303930 Conophylline and betacellulin-delta4: an effective combination of differentiation factors for pancreatic beta cells.
514 17303930 Conophylline and betacellulin-delta4 reproduce differentiation-inducing activity of activin A and betacellulin, respectively.
515 17303930 We examined the effect of conophylline and betacellulin-delta4 on beta cell differentiation.
516 17303930 In AR42J cells, conophylline and betacellulin-delta4 converted them into insulin-producing cells.
517 17303930 Cells treated with conophylline and betacellulin-delta4 continued to grow after differentiation.
518 17303930 Thus, cell number and insulin content were much greater compared to cells treated with activin A and betacellulin.
519 17303930 Furthermore, cells treated with conophylline and betacellulin-delta4 secreted insulin in response to glucose.
520 17303930 Likewise, conophylline and betacellulin-delta4 converted pancreatic ductal cells into insulin-producing cells.
521 17303930 Insulin content, cell number and glucose-evoked insulin secretion were significantly greater than those in cells treated with activin A and betacellulin.
522 17303930 Transplantation of pseudoislets prepared using ductal cells treated with conophylline and betacellulin-delta4 was able to reduce effectively the plasma glucose concentration in streptozotocin-treated nude mice.
523 17303930 Conophylline and betacellulin-delta4 are effective in inducing differentiation of beta cells from progenitors.
524 17303930 Conophylline and betacellulin-delta4: an effective combination of differentiation factors for pancreatic beta cells.
525 17303930 Conophylline and betacellulin-delta4 reproduce differentiation-inducing activity of activin A and betacellulin, respectively.
526 17303930 We examined the effect of conophylline and betacellulin-delta4 on beta cell differentiation.
527 17303930 In AR42J cells, conophylline and betacellulin-delta4 converted them into insulin-producing cells.
528 17303930 Cells treated with conophylline and betacellulin-delta4 continued to grow after differentiation.
529 17303930 Thus, cell number and insulin content were much greater compared to cells treated with activin A and betacellulin.
530 17303930 Furthermore, cells treated with conophylline and betacellulin-delta4 secreted insulin in response to glucose.
531 17303930 Likewise, conophylline and betacellulin-delta4 converted pancreatic ductal cells into insulin-producing cells.
532 17303930 Insulin content, cell number and glucose-evoked insulin secretion were significantly greater than those in cells treated with activin A and betacellulin.
533 17303930 Transplantation of pseudoislets prepared using ductal cells treated with conophylline and betacellulin-delta4 was able to reduce effectively the plasma glucose concentration in streptozotocin-treated nude mice.
534 17303930 Conophylline and betacellulin-delta4 are effective in inducing differentiation of beta cells from progenitors.
535 17303930 Conophylline and betacellulin-delta4: an effective combination of differentiation factors for pancreatic beta cells.
536 17303930 Conophylline and betacellulin-delta4 reproduce differentiation-inducing activity of activin A and betacellulin, respectively.
537 17303930 We examined the effect of conophylline and betacellulin-delta4 on beta cell differentiation.
538 17303930 In AR42J cells, conophylline and betacellulin-delta4 converted them into insulin-producing cells.
539 17303930 Cells treated with conophylline and betacellulin-delta4 continued to grow after differentiation.
540 17303930 Thus, cell number and insulin content were much greater compared to cells treated with activin A and betacellulin.
541 17303930 Furthermore, cells treated with conophylline and betacellulin-delta4 secreted insulin in response to glucose.
542 17303930 Likewise, conophylline and betacellulin-delta4 converted pancreatic ductal cells into insulin-producing cells.
543 17303930 Insulin content, cell number and glucose-evoked insulin secretion were significantly greater than those in cells treated with activin A and betacellulin.
544 17303930 Transplantation of pseudoislets prepared using ductal cells treated with conophylline and betacellulin-delta4 was able to reduce effectively the plasma glucose concentration in streptozotocin-treated nude mice.
545 17303930 Conophylline and betacellulin-delta4 are effective in inducing differentiation of beta cells from progenitors.
546 17510217 In this 36-day protocol, hESCs were treated with sodium butyrate and activin A to generate definitive endoderm coexpressing CXCR4 and Sox17, and CXCR4 and Foxa2.
547 17510217 The endoderm population was then converted into cellular aggregates and further differentiated to Pdx1-expressing pancreatic endoderm in the presence of epidermal growth factor, basic fibroblast growth factor, and noggin.
548 17510217 The aggregates were finally matured in the presence of insulin-like growth factor II and nicotinamide.
549 17652186 Inhibin and activin are members of the TGFbeta family that perform mutually antagonistic signaling roles in the anterior pituitary, gonads, and adrenal gland.
550 17652186 In this study, we demonstrate that Smad3, a key effector of activin signaling, is expressed at high levels and is constitutively activated in tumors from these mice.
551 17652186 The decrease in cyclinD2 levels in compound knockout mice is related to a reduction in mitogenic signaling through the phosphoinositide-3-kinase (PI3-kinase)/Akt pathway, which is required for normal cell cycle progression in tumor cells.
552 17652186 Loss of PI3-kinase/Akt signaling cannot be attributed to alterations in IGF expression, suggesting instead that signaling through the FSH receptor is attenuated.
553 17652186 Gene expression profiling in the ovaries of Madh3-/- and Inha-/-:Madh3-/- compound knockout mice supports this hypothesis and further suggests that Smad3 is specifically required for FSH to activate PI3-kinase/Akt, but not protein kinase A.
554 17652186 Together these observations imply that activin/Smad3 signaling is necessary for efficient signaling by FSH in Inha-/- tumor cells and that interruption of this pathway uncouples FSH from its intracellular mitogenic effectors.
555 17652186 Inhibin and activin are members of the TGFbeta family that perform mutually antagonistic signaling roles in the anterior pituitary, gonads, and adrenal gland.
556 17652186 In this study, we demonstrate that Smad3, a key effector of activin signaling, is expressed at high levels and is constitutively activated in tumors from these mice.
557 17652186 The decrease in cyclinD2 levels in compound knockout mice is related to a reduction in mitogenic signaling through the phosphoinositide-3-kinase (PI3-kinase)/Akt pathway, which is required for normal cell cycle progression in tumor cells.
558 17652186 Loss of PI3-kinase/Akt signaling cannot be attributed to alterations in IGF expression, suggesting instead that signaling through the FSH receptor is attenuated.
559 17652186 Gene expression profiling in the ovaries of Madh3-/- and Inha-/-:Madh3-/- compound knockout mice supports this hypothesis and further suggests that Smad3 is specifically required for FSH to activate PI3-kinase/Akt, but not protein kinase A.
560 17652186 Together these observations imply that activin/Smad3 signaling is necessary for efficient signaling by FSH in Inha-/- tumor cells and that interruption of this pathway uncouples FSH from its intracellular mitogenic effectors.
561 17652186 Inhibin and activin are members of the TGFbeta family that perform mutually antagonistic signaling roles in the anterior pituitary, gonads, and adrenal gland.
562 17652186 In this study, we demonstrate that Smad3, a key effector of activin signaling, is expressed at high levels and is constitutively activated in tumors from these mice.
563 17652186 The decrease in cyclinD2 levels in compound knockout mice is related to a reduction in mitogenic signaling through the phosphoinositide-3-kinase (PI3-kinase)/Akt pathway, which is required for normal cell cycle progression in tumor cells.
564 17652186 Loss of PI3-kinase/Akt signaling cannot be attributed to alterations in IGF expression, suggesting instead that signaling through the FSH receptor is attenuated.
565 17652186 Gene expression profiling in the ovaries of Madh3-/- and Inha-/-:Madh3-/- compound knockout mice supports this hypothesis and further suggests that Smad3 is specifically required for FSH to activate PI3-kinase/Akt, but not protein kinase A.
566 17652186 Together these observations imply that activin/Smad3 signaling is necessary for efficient signaling by FSH in Inha-/- tumor cells and that interruption of this pathway uncouples FSH from its intracellular mitogenic effectors.
567 17710734 Folliculostellate cells are targets of cytokines, peptides, and steroid hormones, and produce growth factors and cytokines, including follistatin, the dynamic regulator of follicle-stimulating hormone (FSH) production that binds activin, and limits activin signaling.
568 17710734 Pituitary adenylate cyclase-activating peptide (PACAP) and its receptor are found in folliculostellate cells in which they stimulate transcription of the follistatin gene through cyclic adenosine monophosphate/protein kinase A (PKA) signaling.
569 17710734 When PACAP increases, follistatin levels increase, and FSH-beta mRNA is reduced.
570 17710734 PACAP also activates gonadotrophs to stimulate transcription of the gonadotropin alpha-subunit gene and lengthen the LH-beta mRNA, presumably to prolong it half-life, and increases responsiveness to GnRH.
571 17989064 In vitro studies on non diabetic islets demonstrated that glucose, betacellulin, activin A, GLP-1 and insulin increased Pax4 mRNA levels.
572 17989064 Adenoviral-mediated expression of human Pax4 resulted in a small increase in Bcl-xL expression while Id2 transcript levels and cell replication were unchanged in human islets.
573 17989064 Treatment of islets with 5-Aza-2'-deoxycytidine induced Pax4 without stimulating Bcl-xL and Id2 expression.
574 18023369 Differential effect of activin on mouse embryonic stem cell differentiation in insulin-secreting cells under nestin-positive selection and spontaneous differentiation protocols.
575 18023369 To increase the efficiency of endocrine pancreatic-like cell differentiation from mouse embryonic stem cells (ESCs), we applied activin-B to nestin-positive selection (protocol 1) and spontaneous differentiation (protocol 2) in different groups including: [A] activin-B, or [B] basic fibroblast growth factor (bFGF), and/or [C] activin-B+bFGF.
576 18023369 In conclusion, Addition of activin-B in a nestin-positive selection protocol increased the insulin-secreting cells in comparison with the same protocol with bFGF and/or spontaneous differentiation in presence of bFGF and/or activin-B alone.
577 18065398 In this system, activin, normally an endoderm inducer, caused an 80% decrease in the Foxa2-positive endoderm fraction, whereas follistatin increased the Foxa2-positive endoderm fraction to 78%.
578 18065398 Long-term differentiation displays a twofold reduction in hepatic gene expression and threefold reduction in hepatic protein expression of activin-treated cells compared with follistatin-treated cells.
579 18065398 In this system, activin, normally an endoderm inducer, caused an 80% decrease in the Foxa2-positive endoderm fraction, whereas follistatin increased the Foxa2-positive endoderm fraction to 78%.
580 18065398 Long-term differentiation displays a twofold reduction in hepatic gene expression and threefold reduction in hepatic protein expression of activin-treated cells compared with follistatin-treated cells.
581 18223258 Smad and p38 MAP kinase-mediated signaling of proteoglycan synthesis in vascular smooth muscle.
582 18223258 This pathway was investigated using the activin receptor-like kinase 5 (ALK5) inhibitor SB431542 and inhibitors of p38 MAP kinase as a possible downstream or alternative mediator.
583 18223258 TGF-beta stimulated and SB431542 inhibited the phosphorylation of Smad2/3.
584 18223258 Two different p38 MAP kinase inhibitors, SB203580 and SB202190, but not the inactive analogue SB202474, concentration-dependently blocked TGF-beta-mediated [(35)S]sulfate incorporation.
585 18223258 TGF-beta increased [(3)H]glucosamine incorporation into glycosaminoglycans by 180% and [(35)S]Met/Cys incorporation into proteoglycan core proteins by 35% with both effects completely inhibited by SB431542.
586 18223258 Blocking both Smad2/3 and p38 MAP kinase pathways prevented the effect of TGF-beta to increase proteoglycan to LDL binding.
587 18223258 TGF-beta mediates its effects on proteoglycan synthesis in VSMCs via the ALK5/Smad2/3 phosphorylation pathway as well as via the p38 MAP kinase signaling cascade.
588 18506084 Up-regulation of JAM-1 in AR42J cells treated with activin A and betacellulin and the diabetic regenerating islets.
589 18506084 The expression level of JAM-1 showed an up-regulation in the mRNA level after 3 hours and in the protein level after 24 hours in [activin A + betacellulin]-treated AR42J cells.
590 18506084 The expressions of its signaling molecules, PAR-3 and atypical PKC lambda, also increased after the addition of activin A + betacellulin.
591 18506084 When JAM-1 was over-expressed in [activin A + betacellulin]-treated AR42J cells, tagged-JAM-1 was observed in cytoplasm as vesicular structures and JAM-1 was colocalized with Rab3B and Rab13, members of the Rab family expressed at tight junctions.
592 18506084 Up-regulation of JAM-1 in AR42J cells treated with activin A and betacellulin and the diabetic regenerating islets.
593 18506084 The expression level of JAM-1 showed an up-regulation in the mRNA level after 3 hours and in the protein level after 24 hours in [activin A + betacellulin]-treated AR42J cells.
594 18506084 The expressions of its signaling molecules, PAR-3 and atypical PKC lambda, also increased after the addition of activin A + betacellulin.
595 18506084 When JAM-1 was over-expressed in [activin A + betacellulin]-treated AR42J cells, tagged-JAM-1 was observed in cytoplasm as vesicular structures and JAM-1 was colocalized with Rab3B and Rab13, members of the Rab family expressed at tight junctions.
596 18506084 Up-regulation of JAM-1 in AR42J cells treated with activin A and betacellulin and the diabetic regenerating islets.
597 18506084 The expression level of JAM-1 showed an up-regulation in the mRNA level after 3 hours and in the protein level after 24 hours in [activin A + betacellulin]-treated AR42J cells.
598 18506084 The expressions of its signaling molecules, PAR-3 and atypical PKC lambda, also increased after the addition of activin A + betacellulin.
599 18506084 When JAM-1 was over-expressed in [activin A + betacellulin]-treated AR42J cells, tagged-JAM-1 was observed in cytoplasm as vesicular structures and JAM-1 was colocalized with Rab3B and Rab13, members of the Rab family expressed at tight junctions.
600 18506084 Up-regulation of JAM-1 in AR42J cells treated with activin A and betacellulin and the diabetic regenerating islets.
601 18506084 The expression level of JAM-1 showed an up-regulation in the mRNA level after 3 hours and in the protein level after 24 hours in [activin A + betacellulin]-treated AR42J cells.
602 18506084 The expressions of its signaling molecules, PAR-3 and atypical PKC lambda, also increased after the addition of activin A + betacellulin.
603 18506084 When JAM-1 was over-expressed in [activin A + betacellulin]-treated AR42J cells, tagged-JAM-1 was observed in cytoplasm as vesicular structures and JAM-1 was colocalized with Rab3B and Rab13, members of the Rab family expressed at tight junctions.
604 18951876 Insulin gene is a target in activin receptor-like kinase 7 signaling pathway in pancreatic beta-cells.
605 18951876 In this study, human insulin promoter was activated by Smad2, Smad3 and the pancreatic and duodenal homeobox factor-1 (PDX-1) in the ALK7 pathway.
606 18951876 Phosphorylated Smad2/Smad3 and PDX-1 were bound to insulin gene with Nodal and Activin AB, and the phosphorylated Smad2/Smad3 interacted with PDX-1.
607 18951876 These results indicate that one of the direct target genes of Nodal and Activin AB signals is the insulin gene in pancreatic beta-cells and that PDX-1 is directly involved in the ALK7-Smad pathway.
608 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
609 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
610 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
611 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
612 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
613 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
614 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
615 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
616 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
617 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
618 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
619 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
620 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
621 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
622 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
623 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
624 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
625 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
626 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
627 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
628 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
629 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
630 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
631 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
632 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
633 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
634 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
635 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
636 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
637 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
638 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
639 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
640 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
641 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
642 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
643 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
644 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
645 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
646 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
647 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
648 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
649 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
650 19128983 Adiponectin upregulates monocytic activin A but systemic levels are not altered in obesity or type 2 diabetes.
651 19128983 Adiponectin and activin A reduce foam cell formation and adiponectin activates the p38 MAPK pathway that is well described to induce activin A.
652 19128983 Therefore, it was analyzed whether adiponectin alters activin A in primary human monocytes.
653 19128983 Adiponectin dose- and time-dependently induced activin A in the supernatant, and the maximal amount was observed after 12h of incubation.
654 19128983 Adiponectin-stimulated release of activin A was blocked by a p38 MAPK inhibitor.
655 19128983 Furthermore, activin A did not correlate to systemic adiponectin, body mass index, waist to hip ratio or C-reactive protein.
656 19128983 These findings indicate that adiponectin upregulates monocytic activin A release via the p38 MAPK pathway, and this may in part explain the immunoregulatory and antiatherosclerotic effects of this adipokine.
657 19295913 Myostatin inhibition in muscle, but not adipose tissue, decreases fat mass and improves insulin sensitivity.
658 19295913 To determine how Mstn deletion causes reduced adiposity and resistance to obesity, we analyzed substrate utilization and insulin sensitivity in Mstn(-/-) mice fed a standard chow.
659 19295913 In contrast, Mstn(-/-) mice had increased glucose utilization and insulin sensitivity as measured by indirect calorimetry, glucose and insulin tolerance tests, and hyperinsulinemic-euglycemic clamp.
660 19295913 To determine whether these metabolic effects were due primarily to the loss of myostatin signaling in muscle or adipose tissue, we compared two transgenic mouse lines carrying a dominant negative activin IIB receptor expressed specifically in adipocytes or skeletal muscle.
661 19295913 We found that inhibition of myostatin signaling in adipose tissue had no effect on body composition, weight gain, or glucose and insulin tolerance in mice fed a standard diet or a high-fat diet.
662 19295913 Our results demonstrate that Mstn(-/-) mice have an increase in insulin sensitivity and glucose uptake, and that the reduction in adipose tissue mass in Mstn(-/-) mice is an indirect result of metabolic changes in skeletal muscle.
663 19395281 Endoglin is an accessory receptor molecule that, in association with transforming growth factor beta (TGF-beta) family receptors Types I and II, binds TGF-beta1, TGF-beta3, activin A, bone morphogenetic protein (BMP)-2 and BMP-7, regulating TGF-beta dependent cellular responses.
664 19544420 Using a two-step culture condition combined with nicotinamide, activin, and/or GLP-1, we differentiated HEACs into insulin-secreting cells and examined in vivo effects of differentiated cells by transplantation experiments.
665 19582775 Role of Smad3, acting independently of transforming growth factor-beta, in the early induction of Wnt-beta-catenin signaling by parathyroid hormone in mouse osteoblastic cells.
666 19582775 We showed previously that PTH interacts with the canonical Wnt-beta-catenin signaling pathway via the transforming growth factor (TGF)-beta signaling molecule, Smad3, to modulate osteoblast differentiation and apoptosis.
667 19582775 Here, we examined which actions of Smad3 are TGF-beta-independent in stimulating the osteoblast phenotype and PTH-induced Wnt-beta-catenin signaling.
668 19582775 For this, the TGF-beta receptor type 1 [activin receptor-like kinase (ALK5)] inhibitor (SB431542), and a Smad3 mutant in which the site normally phosphorylated by ALK5 is mutated from SSVS to AAVA, was used.
669 19582775 PTH induced total beta-catenin and reduced phosphorylated beta-catenin levels at 1, 6, and 24 h in mouse osteoblastic MC3T3-E1 cells.
670 19582775 Transient transfection of Smad3AAVA inhibited the PTH induction of total beta-catenin and reduction of phosphorylated beta-catenin levels at 6 and 24 h, but not at 1 h, indicating that the early effects occur independently of TGF-beta receptor signaling.
671 19582775 On the other hand, MC3T3-E1 cell clones in which Smad3AAVA was stably expressed demonstrated elevated beta-catenin levels, although alkaline phosphatase (ALP) activity and mineralization were unaltered.
672 19582775 In contrast, MC3T3-E1 cell clones in which wild-type Smad3 was stably expressed exhibited increased ALP activity and mineralization that were decreased by the ALK5 inhibitor, SB431542, although the beta-catenin levels induced in these cells were not modulated.
673 19582775 In conclusion, the present study indicates that PTH induces osteoblast beta-catenin levels via Smad3 independently of, and dependently on, TGF-beta in the early and later induction phases, respectively.
674 19668253 The effects of a soluble activin type IIB receptor on obesity and insulin sensitivity.
675 20007937 First-trimester follistatin-like-3 levels in pregnancies complicated by subsequent gestational diabetes mellitus.
676 20007937 OBJECTIVE To determine whether maternal levels of follistatin-like-3 (FSTL3), an inhibitor of activin and myostatin involved in glucose homeostasis, are altered in the first trimester of pregnancies complicated by subsequent gestational diabetes mellitus (GDM).
677 20398888 Two of these are VLDLR and INHBE, which showed significant increase in expression after ER stress in B cells and in primary fibroblasts.
678 20571025 Thrombin stimulation of proteoglycan synthesis in vascular smooth muscle is mediated by protease-activated receptor-1 transactivation of the transforming growth factor beta type I receptor.
679 20571025 One component of classical G-protein-coupled receptor (GPCR) signaling invokes transactivation of protein tyrosine kinase receptors such as the epidermal growth factor receptor.
680 20571025 We have used the model of proteoglycan synthesis to demonstrate that the signaling paradigm of GPCR signaling can be extended to include the transactivation of serine/threonine receptor, specifically the TGF-beta type I receptor (TbetaRI) also known as activin-like kinase (ALK) V.
681 20571025 Thrombin stimulated elongation of GAG chains and increased proteoglycan core protein expression and these responses were blocked by the TbetaRI antagonist, SB431542 and TbetaRI siRNA knockdown, as well as several protease-activated receptor (PAR)-1 antagonists.
682 20571025 The canonical downstream response to TGF-beta is increased C-terminal phosphorylation of the transcription factor Smad2 generating phospho-Smad2C (phosphorylation of Smad2 C-terminal region).
683 20571025 The proteolytically inactive thrombin mimetic thrombin-receptor activating peptide also stimulated an increase in cytosolic phospho-Smad2C.
684 20803090 Transcription factor 7-like 2 (TCF7L2) regulates activin receptor-like kinase 1 (ALK1)/Smad1 pathway for development of diabetic nephropathy.
685 20803090 This study aims to elucidate molecular interactions between activin receptor-like kinase 1 (ALK1)/Smad1 signaling pathway and transcription factor 7-like 2 (TCF7L2) in the progression of DN in vitro and in vivo.
686 20803090 The expressions of TCF7L2 and ALK1 were induced by advanced glycation end products (AGEs) in parallel with Smad1, phosphorylated Smad1 (pSmad1), and alpha-smooth muscle actin (α-SMA) through TGF-β1 in cultured mesangial cells.
687 20803090 The binding of TCF7L2 to ALK1 promoter was confirmed by chromatin immunoprecipitation assay.
688 20803090 Furthermore, TCF7L2 induced promoter activity of ALK1.
689 20803090 AGEs and TGF-β1 induced a marked increase in TCF7L2 expression in parallel with ALK1.
690 20803090 Overexpression of TCF7L2 increased the expressions of ALK1 and Smad1.
691 20803090 Inversely, TCF7L2 knockdown by siRNA suppressed α-SMA expression as well as ALK1 and Smad1.
692 20803090 The iNOS transgenic mice (iNOS-Tgm), which developed diabetic glomerulosclerosis resembling human diabetic nephropathy, exhibited markedly increased expressions of ALK1, TCF7L2, Smad1, pSmad1, and α-SMA in glomeruli in association with mesangial matrix expansion.
693 20803090 These results provide a new evidence that the TCF7L2/ALK1/Smad1 pathway plays a key role in the development of DN.
694 20803090 Transcription factor 7-like 2 (TCF7L2) regulates activin receptor-like kinase 1 (ALK1)/Smad1 pathway for development of diabetic nephropathy.
695 20803090 This study aims to elucidate molecular interactions between activin receptor-like kinase 1 (ALK1)/Smad1 signaling pathway and transcription factor 7-like 2 (TCF7L2) in the progression of DN in vitro and in vivo.
696 20803090 The expressions of TCF7L2 and ALK1 were induced by advanced glycation end products (AGEs) in parallel with Smad1, phosphorylated Smad1 (pSmad1), and alpha-smooth muscle actin (α-SMA) through TGF-β1 in cultured mesangial cells.
697 20803090 The binding of TCF7L2 to ALK1 promoter was confirmed by chromatin immunoprecipitation assay.
698 20803090 Furthermore, TCF7L2 induced promoter activity of ALK1.
699 20803090 AGEs and TGF-β1 induced a marked increase in TCF7L2 expression in parallel with ALK1.
700 20803090 Overexpression of TCF7L2 increased the expressions of ALK1 and Smad1.
701 20803090 Inversely, TCF7L2 knockdown by siRNA suppressed α-SMA expression as well as ALK1 and Smad1.
702 20803090 The iNOS transgenic mice (iNOS-Tgm), which developed diabetic glomerulosclerosis resembling human diabetic nephropathy, exhibited markedly increased expressions of ALK1, TCF7L2, Smad1, pSmad1, and α-SMA in glomeruli in association with mesangial matrix expansion.
703 20803090 These results provide a new evidence that the TCF7L2/ALK1/Smad1 pathway plays a key role in the development of DN.
704 21076077 Peroxisome proliferators-activated receptor gamma (PPARG) ligands improve insulin sensitivity in type 2 diabetes and polycystic ovarian syndrome (PCOS).
705 21076077 Despite clinical studies showing normalization of pituitary responsiveness to gonadotropin-releasing hormone (GnRH) in patients with PCOS, the precise role of PPARG in regulating the hypothalamic-pituitary-gonadal axis remains unclear.
706 21076077 In mouse LbetaT2 immortalized gonadotrophs, rosiglitazone treatment inhibited GnRH stimulation of the stress kinases p38MAPK and MAPKs/JNKs, but did not alter activation of ERKs, both in the presence and absence of activin.
707 21076077 Furthermore, p38MAPK signaling was critical for both Lhb and Fshb promoter activity, and rosiglitazone suppressed the GnRH-mediated induction of Lhb and Fshb mRNA.
708 21076077 Depletion of PPARG using a lentivirally encoded short hairpin RNA abolishes the effect of rosiglitazone to suppress activation of JNKs and induction of the transcription factors EGR1 and FOS as well as the gonadotropin genes Lhb and Fshb.
709 21076077 Lastly, we show conditional knockout of Pparg in pituitary gonadotrophs caused an increase in luteinizing hormone levels in female mice, a decrease in follicle-stimulating hormone in male mice, and a fertility defect characterized by reduced litter size.
710 21191111 PACAP increases alpha-subunit (Cga) and Lhb mRNAs, and it stimulates the transcription of follistatin (Fst) that, in turn, restrains activin signaling to repress Fshb and gonadotropin-releasing hormone-receptor (Gnrhr) expression as well as other activin-responsive genes.
711 21191111 At birth, pituitary PACAP declines and pituitary follistatin levels decrease, which together with increased gonadotropin-releasing hormone secretion allow Gnrhr and Fshb to increase and facilitate activation of the newborn gonads.
712 21191111 Changes in Adcyap1 expression levels in the adult pituitary may contribute to the selective rise in follicle-stimulating hormone (FSH) from age 20-30 days to the midcycle surge and to the secondary increase in FSH that occurs before estrus.
713 21353873 A type I receptor, which is a component of the complex, is known as an activin receptor-like kinase (ALK); currently seven ALKs (ALK1-ALK7) have been identified in humans.
714 21353873 Activins signaling, which is mediated by ALK4 and 7 together with ActRIIA and IIB, plays a critical role in glucose-stimulated insulin secretion, development/neogenesis, and glucose homeostatic control of pancreatic endocrine cells; the insulin gene is regulated by these signaling pathways via ALK7, which is a receptor for Activins AB and B and Nodal.
715 21353874 Activin receptor type IIB (ActRIIB) belongs to a type II transforming growth factor-β (TGF-β) serine/threonine kinase receptor family which is integral to the activin and myostatin signaling pathway.
716 21353874 Actvin and myostatin bind to activin type II receptors (ActRIIA and ActRIIB), and the glycine-serine-rich domains of type I receptors are phosphorylated by type II receptors.
717 21353874 Activin receptor type IIB (ActRIIB) belongs to a type II transforming growth factor-β (TGF-β) serine/threonine kinase receptor family which is integral to the activin and myostatin signaling pathway.
718 21353874 Actvin and myostatin bind to activin type II receptors (ActRIIA and ActRIIB), and the glycine-serine-rich domains of type I receptors are phosphorylated by type II receptors.
719 21865351 Energy deprivation alters in a leptin- and cortisol-independent manner circulating levels of activin A and follistatin but not myostatin in healthy males.
720 22023380 Mice were fed a diet containing 60% kcal from fat for 12 weeks followed by treatment with a soluble MSTN receptor derived from the activin receptor type IIB extracellular domain.
721 22056147 Treatment with activin A and a GSK3β inhibitor enhanced efficient endodermal differentiation, and then combined treatment with retinoic acid, a bone morphogenic protein inhibitor, and a transforming growth factor-β (TGF-β) inhibitor induced efficient differentiation of pancreatic progenitor cells from definitive endoderm.
722 22202163 Unlike activin A, CnP inhibited activation of cultured stellate cells and reduced the production of collagen.
723 22202163 In pancreatic sections obtained from 6-wk-old GK rats, CD68-positive macrophages and glial fibrillary acidic protein- and α-smooth muscle actin-positive stellate cells infiltrated into islets.
724 22306733 Here we show that the BMP receptor activin-like kinase 3 (Alk3) is elevated early in diseased kidneys after injury.
725 22306733 A structure-function analysis of the BMP-Alk3-BMP receptor, type 2 (BMPR2) ligand-receptor complex, along with synthetic organic chemistry, led us to construct a library of small peptide agonists of BMP signaling that function through the Alk3 receptor.
726 22393251 Here, we inhibited MSTN in adult mice with a soluble activin receptor type IIB and analysed the incorporation of new nuclei using 5-bromo-2-deoxyuridine (BrdU) labelling by isolating individual myofibres.
727 22579779 The constitutively activating mutation (R206H) of the BMP type 1 receptor, activin A type 1 receptor/activin-like kinase 2 (ACVR1/ALK2), underlies the molecular pathogenesis of fibrodysplasia ossificans progressiva (FOP) in which heterotopic ossification occurs in muscle tissue.
728 22579779 Transcriptional activity of the BMP-2 signaling molecules, Smad1/5, was increased even in the absence of exogenous BMP-2.
729 22579779 Endogenous BMP-2 levels positively correlated with Tmem119 levels.
730 22579779 A BMP-2/4 neutralizing antibody and dorsomorphin, an ALK2 inhibitor, antagonized Tmem119-enhanced alkaline phosphatase (ALP) levels.
731 22579779 Tmem119 siRNA antagonized the BMP-2-induced ALP and osteocalcin, but not Runx2 and Osterix, mRNAs, in C2C12 cells.
732 22579779 In conclusion, Tmem119 levels were increased by the FOP-associated constitutively activating ALK2 mutation in myoblasts.
733 22579779 The data show that Tmem119 promotes the differentiation of myoblasts into osteoblasts and the interaction with the BMP signaling pathway likely occurs downstream of Runx2 and Osterix in myoblasts.
734 22596054 The growth factor myostatin (MSTN) negatively regulates skeletal muscle growth, and mice with MSTN inhibition have reduced adiposity and improved insulin sensitivity.
735 22596054 A-ZIP/F1 lipodystrophic mice were crossed to mice expressing a dominant-negative MSTN receptor (activin receptor type IIB) in muscle.
736 22596054 MSTN inhibition in A-ZIP/F1 mice reduced blood glucose, serum insulin, triglyceride levels, and the rate of triglyceride synthesis, and improved insulin sensitivity.
737 22596054 These results show that the effect of MSTN inhibition on insulin sensitivity is not secondary to an effect on adipose mass and that MSTN inhibition may be an effective treatment for diabetes.
738 22652787 Hepatic oval cells can be redirected to the beta-cell linage by an appropriate combination of high extracellular glucose, specific extracellular matrix proteins (laminin and fibronectin), cytokines (activin A), and the expression of several differentiation-related transcription factors (Pdx-1, Ngn-3, MafA).
739 22750100 Combined treatment of CM and OA further regulates a set of downstream NF-κB target genes including angiopoietin-1, activin A, and MMP-1, all critically involved in SMC dysfunction.
740 22915381 Moreover, reverse transcription-polymerase chain reaction (RT-PCR) data showed increased expression of pancreatic cell markers, including insulin, Pdx1, pan polypeptide and neurogenin-3, when these cells formed pancreatic clusters in the presence of activin A, exendin-4 and retinoic acid.
741 22919367 Here, we present an efficacy strategy for the differentiation of mouse ES cells into insulin-producing cells (IPCs) by a two-step differentiation protocol comprising of (i) the formation of definitive endoderm in monolayer culture by activin A, and (ii) this monolayer endoderm being induced to differentiate into IPCs by nicotinamide, insulin, and laminin.
742 23116663 Increased glucose and insulin had no effect on base-line activin A secretion by BMNPs in culture, but pre-treatment with insulin blocked the TNF-α induced release of activin A.
743 23116663 Furthermore, regulation of neutrophil activin A release by insulin may also play a role in the inflammation associated with T2D.
744 23116663 Increased glucose and insulin had no effect on base-line activin A secretion by BMNPs in culture, but pre-treatment with insulin blocked the TNF-α induced release of activin A.
745 23116663 Furthermore, regulation of neutrophil activin A release by insulin may also play a role in the inflammation associated with T2D.
746 23754846 It has been previously shown that elastin degradation products work synergistically with transforming growth factor-beta 1 (TGF-β1) to induce osteogenesis in vascular smooth muscle cells.
747 23754846 Thus, the goal of this study was to analyse the effects of high concentration of glucose, elastin peptides and TGF-β1 on bone-specific markers like alkaline phosphatase (ALP), osteocalcin (OCN) and runt-related transcription factor 2 (RUNX2).
748 23754846 We demonstrated using relative gene expression and specific protein assays that elastin degradation products in the presence of high glucose cause the increase in expression of the specific elastin-laminin receptor-1 (ELR-1) and activin receptor-like kinase-5 (ALK-5) present on the surface of the vascular cells, in turn leading to overexpression of typical osteogenic markers like ALP, OCN and RUNX2.
749 23754846 In conclusion, our results indicate that glucose plays an important role in amplifying the osteogenesis induced by elastin peptides and TGF-β1, possibly by activating the ELR-1 and ALK-5 signalling pathways.
750 23838169 In type 1 diabetes, muscle wasting essentially results from insulin deficiency and this induces of genes involved in the ubiquitin proteasome pathway.
751 23838169 Decreased insulin responsiveness has been attributed to defects in the insulin signaling pathways secondary to inflammation (e.g., NF-κB activation and elevated levels of TNF-α, IL-1 and IL-6), metabolic acidosis, increased circulating free fatty acids and glucotoxicity.
752 23838169 Furthermore, emerging pathways, such as myostatin/activin A system are beginning to be uncovered.
753 23987834 Interleukin-6 and activin A are independently associated with cardiovascular events and mortality in type 2 diabetes: the prospective Asker and Bærum Cardiovascular Diabetes (ABCD) cohort study.