Ignet
Search (e.g., vaccine, IFNG): Help
About
Home
Introduction
Statistics
Programs
Dignet
Gene
GenePair
BioSummarAI
Help & Docs
Documents
Help
FAQs
Links
Acknowledge
Disclaimer
Contact Us
UM Logo

UMMS Logo

UMMS Logo

Gene Information

Gene symbol: FST

Gene name: follistatin

HGNC ID: 3971

Synonyms: FS

Related Genes

# Gene Symbol Number of hits
1 ACVR2B 1 hits
2 ADCY10 1 hits
3 ADCYAP1 1 hits
4 ADIPOQ 1 hits
5 AKT1 1 hits
6 CGA 1 hits
7 CRABP1 1 hits
8 CYP19A1 1 hits
9 FSHB 1 hits
10 FSTL1 1 hits
11 FSTL3 1 hits
12 GNRH1 1 hits
13 GNRHR 1 hits
14 IGF1 1 hits
15 IGF1R 1 hits
16 INHBE 1 hits
17 INS 1 hits
18 LEP 1 hits
19 LHB 1 hits
20 MIRN198 1 hits
21 MSTN 1 hits
22 MYC 1 hits
23 NR2F1 1 hits
24 PRKAR1A 1 hits
25 PRKAR2A 1 hits
26 PRKCA 1 hits
27 RPS6KB1 1 hits
28 SHH 1 hits
29 SIT1 1 hits
30 SMAD3 1 hits
31 TDGF1 1 hits
32 TGFB1 1 hits
33 TST 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 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.
3 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).
4 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.
5 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.
6 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).
7 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.
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 1899217 In vivo comparison of the follicle-stimulating hormone-suppressing activity of follistatin and inhibin in ovariectomized rats.
12 1899217 Data obtained from a second experiment conducted to examine the effects of inhibin and follistatin on anterior pituitary gonadotropin responses to LHRH were consistent with in vitro data showing direct pituitary effects of the gonadal polypeptides.
13 1899217 In vivo comparison of the follicle-stimulating hormone-suppressing activity of follistatin and inhibin in ovariectomized rats.
14 1899217 Data obtained from a second experiment conducted to examine the effects of inhibin and follistatin on anterior pituitary gonadotropin responses to LHRH were consistent with in vitro data showing direct pituitary effects of the gonadal polypeptides.
15 1909791 Follistatin and activin: a potential intrinsic regulatory system within diverse tissues.
16 2036994 Follistatin binds to both activin and inhibin through the common subunit.
17 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.
18 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
19 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
20 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
21 2036994 Follistatin binds to both activin and inhibin through the common subunit.
22 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.
23 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
24 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
25 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
26 2036994 Follistatin binds to both activin and inhibin through the common subunit.
27 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.
28 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
29 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
30 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
31 2036994 Follistatin binds to both activin and inhibin through the common subunit.
32 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.
33 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
34 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
35 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
36 2036994 Follistatin binds to both activin and inhibin through the common subunit.
37 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.
38 2036994 By contrast, the physiological significance of follistatin was obscure, until it was discovered that follistatin is a binding protein to activin.
39 2036994 Since activin binds to follistatin, it is imperative to determine the nature of the activin/follistatin binding complex.
40 2036994 Therefore, these results suggest that follistatin binds to both activin and inhibin through the common beta-subunit.
41 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.
42 2121404 Figure 3 shows a simplistic diagram summarizing our current understanding of inhibin/activin and follistatin action along the hypothalamic-pituitary-gonadal axis.
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 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
46 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
47 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.
48 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.
49 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.
50 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
51 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
52 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.
53 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.
54 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.
55 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
56 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
57 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.
58 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.
59 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.
60 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
61 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
62 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.
63 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.
64 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.
65 7887917 The heparin binding site of follistatin is involved in its interaction with activin.
66 7887917 Whether the heparin-binding site of follistatin would interact with activin has been examined.
67 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.
68 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.
69 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.
70 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
71 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
72 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.
73 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.
74 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.
75 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
76 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
77 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.
78 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.
79 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.
80 8333840 Differential control of activin, inhibin and follistatin proteins in cultured rat granulosa cells.
81 8333840 Follistatin, activin and inhibin proteins are produced by granulosa cells, but the mechanisms controlling their production remain unclear.
82 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.
83 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.
84 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.
85 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.
86 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
87 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
88 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.
89 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.
90 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
91 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
92 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.
93 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.
94 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
95 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
96 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.
97 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.
98 8472873 Structural and functional characterization of the rat follistatin (activin-binding protein) gene promoter.
99 8472873 Follistatin was originally identified as a specific inhibitor of follicle stimulating hormone secretion and later characterized as a binding protein for activin.
100 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.
101 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.
102 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
103 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.
104 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.
105 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.
106 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
107 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
108 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.
109 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.
110 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.
111 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
112 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
113 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.
114 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.
115 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.
116 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
117 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
118 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.
119 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.
120 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.
121 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
122 8477666 Increased follistatin (activin-binding protein) gene expression in rat anterior pituitary tissue after ovariectomy may be mediated by pituitary activin.
123 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.
124 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.
125 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.
126 8477666 Viewed in the context of previous work, the data also suggest that changes in follistatin mRNA levels may be linked to activin signaling.
127 15180456 Activins, myostatin and related TGF-beta family members as novel therapeutic targets for endocrine, metabolic and immune disorders.
128 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).
129 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.
130 15232060 There is evidence that the intra-pituitary regulation of FSH-beta and GnRH-receptor gene expression may activate pubertal maturation in male rats.
131 15277382 Interestingly, the expression of endogenous cellular inhibitors of activin signaling, follistatin and Cripto, were also found to be augmented.
132 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).
133 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.
134 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.
135 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
136 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.
137 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
138 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.
139 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).
140 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.
141 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.
142 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
143 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.
144 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
145 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.
146 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).
147 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.
148 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.
149 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
150 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.
151 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
152 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.
153 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).
154 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.
155 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.
156 15319828 Third, activin can stimulate GnRH release from GnRH neurons in the hypothalamus and thereby affect FSH and LH secretion.
157 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.
158 15319828 This review concentrates on the mechanisms through which inhibin, activin, and follistatin regulate the gonadotropins.
159 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.
160 16281169 However, Sonic hedgehog, a known inhibitor of pancreas induction in vivo drastically increased in day 6 embryoid bodies, while Inhibin betaA and betaB were down-regulated and follistatin up-regulated.
161 16350721 Several genes from these pathways have been tested include genes involved in steroid hormone biosynthesis and metabolism (StAR, CYP11, CYP17, CYP19 HSD17B1-3, HSD3B1-2), gonadotropin and gonadal hormones action (ACTR1, ACTR2A-B, FS, INHA, INHBA-B, INHC, SHBG, LHCGR, FSHR, MADH4, AR), obesity and energy regulation (MC4R, OB, OBR, POMC, UCP2-3), insulin secretion and action (IGF1, IGF1R, IGFBPI1-3, INS VNTR, IR, INSL, IRS1-2, PPARG) and many others.
162 16350721 Polymorphic alleles of both IRS-1 and IRS-2 (insulin receptor substrate 1 - 2), alone or in combination, may have a functional impact on the insulin-resistant component of PCOS.
163 16350721 There is no evidence to suggest that follistatin gene polymorphisms play a role in the pathogenesis of insulin resistance in PCOS women.
164 16350721 The results of this study demonstrate that there are significant alterations in the expression of ERalpha and ERbeta in PCOS that may be related to abnormal follicular development.
165 17229845 FSTL3 deletion reveals roles for TGF-beta family ligands in glucose and fat homeostasis in adults.
166 17229845 Activin and myostatin are related members of the TGF-beta growth factor superfamily.
167 17229845 FSTL3 (Follistatin-like 3) is an activin and myostatin antagonist whose physiological role in adults remains to be determined.
168 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.
169 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.
170 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.
171 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.
172 17284512 Acting to regulate the development of ovarian follicles and as an antagonist to aromatase activity, alterations in follistatin function or expression may result in key features of PCOS such as reduced serum FSH, impaired ovarian follicle development and augmented ovarian androgen production.
173 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.
174 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.
175 17710734 When PACAP increases, follistatin levels increase, and FSH-beta mRNA is reduced.
176 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.
177 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.
178 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.
179 17710734 When PACAP increases, follistatin levels increase, and FSH-beta mRNA is reduced.
180 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.
181 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.
182 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.
183 17710734 When PACAP increases, follistatin levels increase, and FSH-beta mRNA is reduced.
184 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.
185 18030501 Follistatin and avian myelocytomatosis viral oncogene homolog mRNA both showed a similar age-related pattern of response to DM, but protein levels did not parallel mRNA for either of these gene products.
186 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%.
187 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.
188 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%.
189 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.
190 19281773 Besides the expected increases in insulin, glucagon, and duct markers (mucin 6, aquaporin 1 and 5), the beta cell auto-antigen IA-2/phogrin was increased 5-fold in Differentiated.
191 19281773 In addition, developmentally important pathways, including notch/jagged, Wnt/frizzled, TGFbeta superfamily (follistatin, BMPs, and SMADs), and retinoic acid (COUP-TFI, CRABP1, 2, and RAIG1) were differentially regulated during the expansion/differentiation.
192 19281773 Two putative markers for islet precursor cells, UCHL1/PGP9.5 and DMBT1, were enhanced during the progression to differentiated cells, but only the latter could be a marker of islet precursor cells.
193 20007937 First-trimester follistatin-like-3 levels in pregnancies complicated by subsequent gestational diabetes mellitus.
194 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).
195 20007937 First-trimester follistatin-like-3 levels in pregnancies complicated by subsequent gestational diabetes mellitus.
196 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).
197 20043993 Downregulated expression of the secreted glycoprotein follistatin-like 1 (Fstl1) is a robust hallmark of preadipocyte to adipocyte conversion.
198 20043993 Time course studies in multiple adipogenesis models reveal downregulation of Fstl1 is a hallmark of white and brown adipocyte conversion.
199 20043993 By Western blot, we show culture media of 3T3-L1 preadipocytes contains high levels of Fstl1 protein that rapidly decline in adipocyte conversion.
200 20043993 Moreover, we observe a correlation between preadipocyte phenotype and Fstl1 expression in that TNFalpha-mediated de-differentiation of 3T3-L1 adipocytes is accompanied by re-expression of Fstl1 transcript and protein.
201 20043993 Furthermore, of 10 additional preadipocyte-expressed genes analyzed we find Pref-1, Col1A1, Sca-1/Ly6a, Lox and Thbs2, are also downregulated by 5-aza-cytidine.
202 20043993 Using luciferase reporter constructs containing 791 or 3922 bp of the Fstl1 5' flanking region, we determine negative transcriptional regulation by Kruppel-like factor 15.
203 20043993 Together, our data suggest downregulation of Fstl1 expression may be an important feature of preadipocyte to adipocyte conversion.
204 20869223 Hence, the present investigation evaluates the antidepressant effect of mitragynine in the mouse forced swim test (FST) and tail suspension test (TST), two models predictive of antidepressant activity and the effect of mitragynine towards neuroendocrine system of hypothalamic-pituitary-adrenal (HPA) axis by measuring the corticosterone concentration of mice exposed to FST and TST.
205 20869223 An open-field test (OFT) was used to detect any association of immobility in the FST and TST with changes in motor activity of mice treated with mitragynine.
206 20869223 In the present study, mitragynine at dose of 10 mg/kg and 30 mg/kg i.p. injected significantly reduced the immobility time of mice in both FST and TST without any significant effect on locomotor activity in OFT.
207 20869223 Moreover, mitragynine significantly reduced the released of corticosterone in mice exposed to FST and TST at dose of 10 mg/kg and 30 mg/kg.
208 20869223 Overall, the present study clearly demonstrated that mitragynine exerts an antidepressant effect in animal behavioral model of depression (FST and TST) and the effect appears to be mediated by an interaction with neuroendocrine HPA axis systems.
209 20869223 Hence, the present investigation evaluates the antidepressant effect of mitragynine in the mouse forced swim test (FST) and tail suspension test (TST), two models predictive of antidepressant activity and the effect of mitragynine towards neuroendocrine system of hypothalamic-pituitary-adrenal (HPA) axis by measuring the corticosterone concentration of mice exposed to FST and TST.
210 20869223 An open-field test (OFT) was used to detect any association of immobility in the FST and TST with changes in motor activity of mice treated with mitragynine.
211 20869223 In the present study, mitragynine at dose of 10 mg/kg and 30 mg/kg i.p. injected significantly reduced the immobility time of mice in both FST and TST without any significant effect on locomotor activity in OFT.
212 20869223 Moreover, mitragynine significantly reduced the released of corticosterone in mice exposed to FST and TST at dose of 10 mg/kg and 30 mg/kg.
213 20869223 Overall, the present study clearly demonstrated that mitragynine exerts an antidepressant effect in animal behavioral model of depression (FST and TST) and the effect appears to be mediated by an interaction with neuroendocrine HPA axis systems.
214 20869223 Hence, the present investigation evaluates the antidepressant effect of mitragynine in the mouse forced swim test (FST) and tail suspension test (TST), two models predictive of antidepressant activity and the effect of mitragynine towards neuroendocrine system of hypothalamic-pituitary-adrenal (HPA) axis by measuring the corticosterone concentration of mice exposed to FST and TST.
215 20869223 An open-field test (OFT) was used to detect any association of immobility in the FST and TST with changes in motor activity of mice treated with mitragynine.
216 20869223 In the present study, mitragynine at dose of 10 mg/kg and 30 mg/kg i.p. injected significantly reduced the immobility time of mice in both FST and TST without any significant effect on locomotor activity in OFT.
217 20869223 Moreover, mitragynine significantly reduced the released of corticosterone in mice exposed to FST and TST at dose of 10 mg/kg and 30 mg/kg.
218 20869223 Overall, the present study clearly demonstrated that mitragynine exerts an antidepressant effect in animal behavioral model of depression (FST and TST) and the effect appears to be mediated by an interaction with neuroendocrine HPA axis systems.
219 20869223 Hence, the present investigation evaluates the antidepressant effect of mitragynine in the mouse forced swim test (FST) and tail suspension test (TST), two models predictive of antidepressant activity and the effect of mitragynine towards neuroendocrine system of hypothalamic-pituitary-adrenal (HPA) axis by measuring the corticosterone concentration of mice exposed to FST and TST.
220 20869223 An open-field test (OFT) was used to detect any association of immobility in the FST and TST with changes in motor activity of mice treated with mitragynine.
221 20869223 In the present study, mitragynine at dose of 10 mg/kg and 30 mg/kg i.p. injected significantly reduced the immobility time of mice in both FST and TST without any significant effect on locomotor activity in OFT.
222 20869223 Moreover, mitragynine significantly reduced the released of corticosterone in mice exposed to FST and TST at dose of 10 mg/kg and 30 mg/kg.
223 20869223 Overall, the present study clearly demonstrated that mitragynine exerts an antidepressant effect in animal behavioral model of depression (FST and TST) and the effect appears to be mediated by an interaction with neuroendocrine HPA axis systems.
224 20869223 Hence, the present investigation evaluates the antidepressant effect of mitragynine in the mouse forced swim test (FST) and tail suspension test (TST), two models predictive of antidepressant activity and the effect of mitragynine towards neuroendocrine system of hypothalamic-pituitary-adrenal (HPA) axis by measuring the corticosterone concentration of mice exposed to FST and TST.
225 20869223 An open-field test (OFT) was used to detect any association of immobility in the FST and TST with changes in motor activity of mice treated with mitragynine.
226 20869223 In the present study, mitragynine at dose of 10 mg/kg and 30 mg/kg i.p. injected significantly reduced the immobility time of mice in both FST and TST without any significant effect on locomotor activity in OFT.
227 20869223 Moreover, mitragynine significantly reduced the released of corticosterone in mice exposed to FST and TST at dose of 10 mg/kg and 30 mg/kg.
228 20869223 Overall, the present study clearly demonstrated that mitragynine exerts an antidepressant effect in animal behavioral model of depression (FST and TST) and the effect appears to be mediated by an interaction with neuroendocrine HPA axis systems.
229 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.
230 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.
231 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.
232 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.
233 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.
234 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.
235 21622850 Follistatin-like 1 in chronic systolic heart failure: a marker of left ventricular remodeling.
236 21865351 Energy deprivation alters in a leptin- and cortisol-independent manner circulating levels of activin A and follistatin but not myostatin in healthy males.
237 22087027 The type 1 insulin-like growth factor receptor (IGF-IR) pathway is mandatory for the follistatin-induced skeletal muscle hypertrophy.
238 22087027 Myostatin inhibition by follistatin (FS) offers a new approach for muscle mass enhancement.
239 22087027 Because IGF-I and IGF-II, two crucial skeletal muscle growth factors, are induced by myostatin inhibition, we assessed their role in FS action.
240 22087027 We then tested the role of the signaling molecules stimulated by IGF-IR, in particular the Akt/mammalian target of rapamycin (mTOR)/70-kDa ribosomal protein S6 kinase (S6K) pathway.
241 22087027 In conclusion, the IGF-IR/Akt/mTOR pathway plays a critical role in FS-induced muscle hypertrophy.
242 22087027 In contrast, induction of IGF-II expression and S6K activity by FS are not required for the hypertrophic action of FS.
243 22087027 The type 1 insulin-like growth factor receptor (IGF-IR) pathway is mandatory for the follistatin-induced skeletal muscle hypertrophy.
244 22087027 Myostatin inhibition by follistatin (FS) offers a new approach for muscle mass enhancement.
245 22087027 Because IGF-I and IGF-II, two crucial skeletal muscle growth factors, are induced by myostatin inhibition, we assessed their role in FS action.
246 22087027 We then tested the role of the signaling molecules stimulated by IGF-IR, in particular the Akt/mammalian target of rapamycin (mTOR)/70-kDa ribosomal protein S6 kinase (S6K) pathway.
247 22087027 In conclusion, the IGF-IR/Akt/mTOR pathway plays a critical role in FS-induced muscle hypertrophy.
248 22087027 In contrast, induction of IGF-II expression and S6K activity by FS are not required for the hypertrophic action of FS.
249 22689209 The same results were observed in patients who underwent both FST and SIT.
250 22711699 Follistatin-mediated skeletal muscle hypertrophy is regulated by Smad3 and mTOR independently of myostatin.
251 22711699 Furthermore, we identify Smad3 as the critical intracellular link that mediates the effects of follistatin on mTOR signaling.
252 22711699 Expression of constitutively active Smad3 not only markedly prevented skeletal muscle growth induced by follistatin but also potently suppressed follistatin-induced Akt/mTOR/S6K signaling.
253 22711699 Importantly, the regulation of Smad3- and mTOR-dependent events by follistatin occurred independently of overexpression or knockout of myostatin, a key repressor of muscle development that can regulate Smad3 and mTOR signaling and that is itself inhibited by follistatin.
254 22711699 These findings identify a critical role of Smad3/Akt/mTOR/S6K/S6RP signaling in follistatin-mediated muscle growth that operates independently of myostatin-driven mechanisms.
255 22711699 Follistatin-mediated skeletal muscle hypertrophy is regulated by Smad3 and mTOR independently of myostatin.
256 22711699 Furthermore, we identify Smad3 as the critical intracellular link that mediates the effects of follistatin on mTOR signaling.
257 22711699 Expression of constitutively active Smad3 not only markedly prevented skeletal muscle growth induced by follistatin but also potently suppressed follistatin-induced Akt/mTOR/S6K signaling.
258 22711699 Importantly, the regulation of Smad3- and mTOR-dependent events by follistatin occurred independently of overexpression or knockout of myostatin, a key repressor of muscle development that can regulate Smad3 and mTOR signaling and that is itself inhibited by follistatin.
259 22711699 These findings identify a critical role of Smad3/Akt/mTOR/S6K/S6RP signaling in follistatin-mediated muscle growth that operates independently of myostatin-driven mechanisms.
260 22711699 Follistatin-mediated skeletal muscle hypertrophy is regulated by Smad3 and mTOR independently of myostatin.
261 22711699 Furthermore, we identify Smad3 as the critical intracellular link that mediates the effects of follistatin on mTOR signaling.
262 22711699 Expression of constitutively active Smad3 not only markedly prevented skeletal muscle growth induced by follistatin but also potently suppressed follistatin-induced Akt/mTOR/S6K signaling.
263 22711699 Importantly, the regulation of Smad3- and mTOR-dependent events by follistatin occurred independently of overexpression or knockout of myostatin, a key repressor of muscle development that can regulate Smad3 and mTOR signaling and that is itself inhibited by follistatin.
264 22711699 These findings identify a critical role of Smad3/Akt/mTOR/S6K/S6RP signaling in follistatin-mediated muscle growth that operates independently of myostatin-driven mechanisms.
265 22711699 Follistatin-mediated skeletal muscle hypertrophy is regulated by Smad3 and mTOR independently of myostatin.
266 22711699 Furthermore, we identify Smad3 as the critical intracellular link that mediates the effects of follistatin on mTOR signaling.
267 22711699 Expression of constitutively active Smad3 not only markedly prevented skeletal muscle growth induced by follistatin but also potently suppressed follistatin-induced Akt/mTOR/S6K signaling.
268 22711699 Importantly, the regulation of Smad3- and mTOR-dependent events by follistatin occurred independently of overexpression or knockout of myostatin, a key repressor of muscle development that can regulate Smad3 and mTOR signaling and that is itself inhibited by follistatin.
269 22711699 These findings identify a critical role of Smad3/Akt/mTOR/S6K/S6RP signaling in follistatin-mediated muscle growth that operates independently of myostatin-driven mechanisms.
270 22711699 Follistatin-mediated skeletal muscle hypertrophy is regulated by Smad3 and mTOR independently of myostatin.
271 22711699 Furthermore, we identify Smad3 as the critical intracellular link that mediates the effects of follistatin on mTOR signaling.
272 22711699 Expression of constitutively active Smad3 not only markedly prevented skeletal muscle growth induced by follistatin but also potently suppressed follistatin-induced Akt/mTOR/S6K signaling.
273 22711699 Importantly, the regulation of Smad3- and mTOR-dependent events by follistatin occurred independently of overexpression or knockout of myostatin, a key repressor of muscle development that can regulate Smad3 and mTOR signaling and that is itself inhibited by follistatin.
274 22711699 These findings identify a critical role of Smad3/Akt/mTOR/S6K/S6RP signaling in follistatin-mediated muscle growth that operates independently of myostatin-driven mechanisms.
275 23395958 'See-saw' expression of microRNA-198 and FSTL1 from a single transcript in wound healing.
276 23395958 Expression of primate-specific exonic microRNA-198 (miR-198), located in the 3'-untranslated region of follistatin-like 1 (FSTL1) messenger RNA, switches to expression of the linked open reading frame of FSTL1 upon wounding in a human ex vivo organ culture system.
277 23395958 We show that binding of a KH-type splicing regulatory protein (KSRP, also known as KHSRP) to the primary transcript determines the fate of the transcript and is essential for the processing of miR-198: transforming growth factor-β signalling switches off miR-198 expression by downregulating KSRP, and promotes FSTL1 protein expression.
278 23395958 We also show that FSTL1 expression promotes keratinocyte migration, whereas miR-198 expression has the opposite effect by targeting and inhibiting DIAPH1, PLAU and LAMC2.
279 23395958 A clear inverse correlation between the expression pattern of FSTL1 (pro-migratory) and miR-198 (anti-migratory) highlights the importance of this regulatory switch in controlling context-specific gene expression to orchestrate wound re-epithelialization.
280 23395958 The deleterious effect of failure of this switch is apparent in non-healing chronic diabetic ulcers, in which expression of miR-198 persists, FSTL1 is absent, and keratinocyte migration, re-epithelialization and wound healing all fail to occur.
281 23419164 Follistatin-like protein 1 (Fstl1) is a secreted glycoprotein of the follistatin family.
282 23419164 Fstl1 is secreted by C2C12 cells, and Akt1 over-expression in skeletal muscle leads to its induction in muscle and increased circulating levels.
283 23419164 Furthermore, IFNγ and IL-1β significantly increase Fstl1 secretion.