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Gene Information

Gene symbol: SART3

Gene name: squamous cell carcinoma antigen recognized by T cells 3

HGNC ID: 16860

Synonyms: KIAA0156, RP11-13G14, TIP110, p110

Related Genes

# Gene Symbol Number of hits
1 AGT 1 hits
2 AKT1 1 hits
3 IFNG 1 hits
4 IGF1 1 hits
5 INS 1 hits
6 IRS1 1 hits
7 JUN 1 hits
8 MAPK1 1 hits
9 NOS2A 1 hits
10 PIK3CA 1 hits
11 PIK3CB 1 hits
12 PIK3R1 1 hits
13 PIK3R2 1 hits
14 PPP1R13B 1 hits
15 RPS6KB1 1 hits
16 SERPINE1 1 hits
17 UBASH3B 1 hits

Related Sentences

# PMID Sentence
1 9054447 Specific increase in p85alpha expression in response to dexamethasone is associated with inhibition of insulin-like growth factor-I stimulated phosphatidylinositol 3-kinase activity in cultured muscle cells.
2 9054447 The stimulation of phosphatidylinositol (PI) 3-kinase by insulin-like growth factor I (IGF-I) in L6 cultured skeletal muscle cells is inhibited by the glucocorticoid dexamethasone.
3 9054447 The objective of this study was to investigate the mechanism of dexamethasone action by determining its effects on the expression of the p85alpha and p85beta regulatory subunit isoforms of PI 3-kinase, their coupling with the p110 catalytic subunit, and their association with insulin receptor substrate 1 (IRS-1) in response to IGF-I stimulation.
4 9054447 Dexamethasone induced a 300% increase in p85alpha protein content in the L6 cultured myoblast cell line, whereas it increased p110 content by only 38% and had no effect on p85beta.
5 9054447 Stimulation with IGF-I induced the association of p85alpha and p85beta with IRS-1, and this was accompanied by increased amounts of the p110 catalytic subunit and markedly increased PI 3-kinase activity in IRS-1 immunoprecipitates.
6 9054447 In cells treated with dexamethasone, greater amounts of p85alpha and lower amounts of p85beta, respectively, were found in IRS-1 immunoprecipitates, such that the alpha/beta ratio was markedly higher than in control cells.
7 9054447 In spite of the increase in both total and IRS-1-associated p85alpha following dexamethasone treatment, IRS-1-associated p110 catalytic subunit and PI 3-kinase activity were decreased by approximately 50%.
8 9054447 Thus, dexamethasone induces a specific increase in expression of the p85alpha regulatory subunit that is not associated with a coordinate increase in the p110 catalytic subunit of PI 3-kinase.
9 9054447 As a consequence, in dexamethasone-treated cells, p85alpha that is not coupled with p110 competes with both p85alpha.p110 and p85beta.p110 complexes for association with IRS-1, leading to increased p85alpha but decreased p85beta, p110, and PI 3-kinase activity in IRS-1 immunoprecipitates.
10 9054447 Specific increase in p85alpha expression in response to dexamethasone is associated with inhibition of insulin-like growth factor-I stimulated phosphatidylinositol 3-kinase activity in cultured muscle cells.
11 9054447 The stimulation of phosphatidylinositol (PI) 3-kinase by insulin-like growth factor I (IGF-I) in L6 cultured skeletal muscle cells is inhibited by the glucocorticoid dexamethasone.
12 9054447 The objective of this study was to investigate the mechanism of dexamethasone action by determining its effects on the expression of the p85alpha and p85beta regulatory subunit isoforms of PI 3-kinase, their coupling with the p110 catalytic subunit, and their association with insulin receptor substrate 1 (IRS-1) in response to IGF-I stimulation.
13 9054447 Dexamethasone induced a 300% increase in p85alpha protein content in the L6 cultured myoblast cell line, whereas it increased p110 content by only 38% and had no effect on p85beta.
14 9054447 Stimulation with IGF-I induced the association of p85alpha and p85beta with IRS-1, and this was accompanied by increased amounts of the p110 catalytic subunit and markedly increased PI 3-kinase activity in IRS-1 immunoprecipitates.
15 9054447 In cells treated with dexamethasone, greater amounts of p85alpha and lower amounts of p85beta, respectively, were found in IRS-1 immunoprecipitates, such that the alpha/beta ratio was markedly higher than in control cells.
16 9054447 In spite of the increase in both total and IRS-1-associated p85alpha following dexamethasone treatment, IRS-1-associated p110 catalytic subunit and PI 3-kinase activity were decreased by approximately 50%.
17 9054447 Thus, dexamethasone induces a specific increase in expression of the p85alpha regulatory subunit that is not associated with a coordinate increase in the p110 catalytic subunit of PI 3-kinase.
18 9054447 As a consequence, in dexamethasone-treated cells, p85alpha that is not coupled with p110 competes with both p85alpha.p110 and p85beta.p110 complexes for association with IRS-1, leading to increased p85alpha but decreased p85beta, p110, and PI 3-kinase activity in IRS-1 immunoprecipitates.
19 9054447 Specific increase in p85alpha expression in response to dexamethasone is associated with inhibition of insulin-like growth factor-I stimulated phosphatidylinositol 3-kinase activity in cultured muscle cells.
20 9054447 The stimulation of phosphatidylinositol (PI) 3-kinase by insulin-like growth factor I (IGF-I) in L6 cultured skeletal muscle cells is inhibited by the glucocorticoid dexamethasone.
21 9054447 The objective of this study was to investigate the mechanism of dexamethasone action by determining its effects on the expression of the p85alpha and p85beta regulatory subunit isoforms of PI 3-kinase, their coupling with the p110 catalytic subunit, and their association with insulin receptor substrate 1 (IRS-1) in response to IGF-I stimulation.
22 9054447 Dexamethasone induced a 300% increase in p85alpha protein content in the L6 cultured myoblast cell line, whereas it increased p110 content by only 38% and had no effect on p85beta.
23 9054447 Stimulation with IGF-I induced the association of p85alpha and p85beta with IRS-1, and this was accompanied by increased amounts of the p110 catalytic subunit and markedly increased PI 3-kinase activity in IRS-1 immunoprecipitates.
24 9054447 In cells treated with dexamethasone, greater amounts of p85alpha and lower amounts of p85beta, respectively, were found in IRS-1 immunoprecipitates, such that the alpha/beta ratio was markedly higher than in control cells.
25 9054447 In spite of the increase in both total and IRS-1-associated p85alpha following dexamethasone treatment, IRS-1-associated p110 catalytic subunit and PI 3-kinase activity were decreased by approximately 50%.
26 9054447 Thus, dexamethasone induces a specific increase in expression of the p85alpha regulatory subunit that is not associated with a coordinate increase in the p110 catalytic subunit of PI 3-kinase.
27 9054447 As a consequence, in dexamethasone-treated cells, p85alpha that is not coupled with p110 competes with both p85alpha.p110 and p85beta.p110 complexes for association with IRS-1, leading to increased p85alpha but decreased p85beta, p110, and PI 3-kinase activity in IRS-1 immunoprecipitates.
28 9054447 Specific increase in p85alpha expression in response to dexamethasone is associated with inhibition of insulin-like growth factor-I stimulated phosphatidylinositol 3-kinase activity in cultured muscle cells.
29 9054447 The stimulation of phosphatidylinositol (PI) 3-kinase by insulin-like growth factor I (IGF-I) in L6 cultured skeletal muscle cells is inhibited by the glucocorticoid dexamethasone.
30 9054447 The objective of this study was to investigate the mechanism of dexamethasone action by determining its effects on the expression of the p85alpha and p85beta regulatory subunit isoforms of PI 3-kinase, their coupling with the p110 catalytic subunit, and their association with insulin receptor substrate 1 (IRS-1) in response to IGF-I stimulation.
31 9054447 Dexamethasone induced a 300% increase in p85alpha protein content in the L6 cultured myoblast cell line, whereas it increased p110 content by only 38% and had no effect on p85beta.
32 9054447 Stimulation with IGF-I induced the association of p85alpha and p85beta with IRS-1, and this was accompanied by increased amounts of the p110 catalytic subunit and markedly increased PI 3-kinase activity in IRS-1 immunoprecipitates.
33 9054447 In cells treated with dexamethasone, greater amounts of p85alpha and lower amounts of p85beta, respectively, were found in IRS-1 immunoprecipitates, such that the alpha/beta ratio was markedly higher than in control cells.
34 9054447 In spite of the increase in both total and IRS-1-associated p85alpha following dexamethasone treatment, IRS-1-associated p110 catalytic subunit and PI 3-kinase activity were decreased by approximately 50%.
35 9054447 Thus, dexamethasone induces a specific increase in expression of the p85alpha regulatory subunit that is not associated with a coordinate increase in the p110 catalytic subunit of PI 3-kinase.
36 9054447 As a consequence, in dexamethasone-treated cells, p85alpha that is not coupled with p110 competes with both p85alpha.p110 and p85beta.p110 complexes for association with IRS-1, leading to increased p85alpha but decreased p85beta, p110, and PI 3-kinase activity in IRS-1 immunoprecipitates.
37 9054447 Specific increase in p85alpha expression in response to dexamethasone is associated with inhibition of insulin-like growth factor-I stimulated phosphatidylinositol 3-kinase activity in cultured muscle cells.
38 9054447 The stimulation of phosphatidylinositol (PI) 3-kinase by insulin-like growth factor I (IGF-I) in L6 cultured skeletal muscle cells is inhibited by the glucocorticoid dexamethasone.
39 9054447 The objective of this study was to investigate the mechanism of dexamethasone action by determining its effects on the expression of the p85alpha and p85beta regulatory subunit isoforms of PI 3-kinase, their coupling with the p110 catalytic subunit, and their association with insulin receptor substrate 1 (IRS-1) in response to IGF-I stimulation.
40 9054447 Dexamethasone induced a 300% increase in p85alpha protein content in the L6 cultured myoblast cell line, whereas it increased p110 content by only 38% and had no effect on p85beta.
41 9054447 Stimulation with IGF-I induced the association of p85alpha and p85beta with IRS-1, and this was accompanied by increased amounts of the p110 catalytic subunit and markedly increased PI 3-kinase activity in IRS-1 immunoprecipitates.
42 9054447 In cells treated with dexamethasone, greater amounts of p85alpha and lower amounts of p85beta, respectively, were found in IRS-1 immunoprecipitates, such that the alpha/beta ratio was markedly higher than in control cells.
43 9054447 In spite of the increase in both total and IRS-1-associated p85alpha following dexamethasone treatment, IRS-1-associated p110 catalytic subunit and PI 3-kinase activity were decreased by approximately 50%.
44 9054447 Thus, dexamethasone induces a specific increase in expression of the p85alpha regulatory subunit that is not associated with a coordinate increase in the p110 catalytic subunit of PI 3-kinase.
45 9054447 As a consequence, in dexamethasone-treated cells, p85alpha that is not coupled with p110 competes with both p85alpha.p110 and p85beta.p110 complexes for association with IRS-1, leading to increased p85alpha but decreased p85beta, p110, and PI 3-kinase activity in IRS-1 immunoprecipitates.
46 9054447 Specific increase in p85alpha expression in response to dexamethasone is associated with inhibition of insulin-like growth factor-I stimulated phosphatidylinositol 3-kinase activity in cultured muscle cells.
47 9054447 The stimulation of phosphatidylinositol (PI) 3-kinase by insulin-like growth factor I (IGF-I) in L6 cultured skeletal muscle cells is inhibited by the glucocorticoid dexamethasone.
48 9054447 The objective of this study was to investigate the mechanism of dexamethasone action by determining its effects on the expression of the p85alpha and p85beta regulatory subunit isoforms of PI 3-kinase, their coupling with the p110 catalytic subunit, and their association with insulin receptor substrate 1 (IRS-1) in response to IGF-I stimulation.
49 9054447 Dexamethasone induced a 300% increase in p85alpha protein content in the L6 cultured myoblast cell line, whereas it increased p110 content by only 38% and had no effect on p85beta.
50 9054447 Stimulation with IGF-I induced the association of p85alpha and p85beta with IRS-1, and this was accompanied by increased amounts of the p110 catalytic subunit and markedly increased PI 3-kinase activity in IRS-1 immunoprecipitates.
51 9054447 In cells treated with dexamethasone, greater amounts of p85alpha and lower amounts of p85beta, respectively, were found in IRS-1 immunoprecipitates, such that the alpha/beta ratio was markedly higher than in control cells.
52 9054447 In spite of the increase in both total and IRS-1-associated p85alpha following dexamethasone treatment, IRS-1-associated p110 catalytic subunit and PI 3-kinase activity were decreased by approximately 50%.
53 9054447 Thus, dexamethasone induces a specific increase in expression of the p85alpha regulatory subunit that is not associated with a coordinate increase in the p110 catalytic subunit of PI 3-kinase.
54 9054447 As a consequence, in dexamethasone-treated cells, p85alpha that is not coupled with p110 competes with both p85alpha.p110 and p85beta.p110 complexes for association with IRS-1, leading to increased p85alpha but decreased p85beta, p110, and PI 3-kinase activity in IRS-1 immunoprecipitates.
55 10868937 Inhibitory effect of IGF-I on type 2 nitric oxide synthase expression in Ins-1 cells and protection against activation-dependent apoptosis: involvement of phosphatidylinositol 3-kinase.
56 10868937 Challenge of Ins-1 cells, a rat beta-pancreatic cell line, with lipopolysaccharide (LPS) and interferon-gamma (IFN-gamma) promoted the expression of type 2 nitric oxide synthase (NOS-2) in a cooperative way.
57 10868937 Treatment of Ins-1 cells with IGF-I significantly inhibited the expression of NOS-2, especially at subsaturating concentrations of LPS and IFN-gamma.
58 10868937 The inhibitory effect of IGF-I on NOS-2 expression was abrogated when cells were incubated with wortmannin or LY294002, two inhibitors of phosphatidylinositol 3-kinase.
59 10868937 Transient expression of the p110 subunit of phosphatidylinositol 3-kinase impaired the LPS and IFN-gamma-dependent NOS-2 promoter activity in cells transfected with a 1-kb fragment corresponding to the 5'-flanking region of the NOS-2 gene.
60 10868937 However, expression of a dominant negative form of p85 abolished the inhibitory action of IGF-I on the NOS-2 promoter activity.
61 10868937 However, in activated cells treated with N-[3-(aminomethyl)benzyl]acetamidine, a specific NOS-2 inhibitor, IGF-I completely abolished the NO-independent apoptosis.
62 11549666 Insulin stimulation of glycogen synthase activity as well as phosphorylation of MAPK, p70 S6 kinase, and protein kinase B (Akt) were blocked by the phosphatidylinositol 3-kinase inhibitors wortmannin (50 nM) and LY294002 (10 microM).
63 11549666 This increased sensitivity of diabetic muscle to impairment of insulin-stimulated glycogen synthase activity occurs together with diminished insulin-stimulation (by 40%) of IRS-1-associated phosphatidylinositol 3-kinase activity in the same cells.
64 11549666 Protein expression of IRS-1, p85, p110, Akt, p70 S6 kinase, and MAPK were normal in diabetic cells, as was insulin-stimulated phosphorylation of Akt, p70 S6 kinase, and MAPK.
65 11549666 These studies indicate that, despite prolonged growth and differentiation of diabetic muscle under normal metabolic culture conditions, defects of insulin-stimulated phosphatidylinositol 3-kinase and glycogen synthase activity in diabetic muscle persist, consistent with intrinsic (rather than acquired) defects of insulin action.
66 11784871 Class Ia phosphoinositide (PI) 3-kinase is a central component in growth factor signaling and is comprised of a p110 catalytic subunit and a regulatory subunit, the most common family of which is derived from the p85alpha gene (Pik3r1).
67 11784871 In wild-type cells, the p85 subunit is more abundant than p110, leading to competition between the p85 monomer and the p85-p110 dimer and ineffective signaling.
68 11784871 Heterozygous disruption of Pik3r1 results in increased Akt activity and decreased apoptosis by insulin-like growth factor 1 (IGF-1) through up-regulated phosphatidylinositol (3,4,5)-triphosphate production.
69 11784871 Thus, a reduction in p85alpha represents a novel therapeutic target for enhancing IGF-1/insulin signaling, prolongation of cell survival, and protection against apoptosis.
70 11784871 Class Ia phosphoinositide (PI) 3-kinase is a central component in growth factor signaling and is comprised of a p110 catalytic subunit and a regulatory subunit, the most common family of which is derived from the p85alpha gene (Pik3r1).
71 11784871 In wild-type cells, the p85 subunit is more abundant than p110, leading to competition between the p85 monomer and the p85-p110 dimer and ineffective signaling.
72 11784871 Heterozygous disruption of Pik3r1 results in increased Akt activity and decreased apoptosis by insulin-like growth factor 1 (IGF-1) through up-regulated phosphatidylinositol (3,4,5)-triphosphate production.
73 11784871 Thus, a reduction in p85alpha represents a novel therapeutic target for enhancing IGF-1/insulin signaling, prolongation of cell survival, and protection against apoptosis.
74 14504291 Positive and negative roles of p85 alpha and p85 beta regulatory subunits of phosphoinositide 3-kinase in insulin signaling.
75 14504291 Class IA phosphoinositide (PI) 3-kinase is composed of a p110 catalytic subunit and a p85 regulatory subunit and plays a pivotal role in insulin signaling.
76 14504291 To explore the physiological roles of two major regulatory isoforms, p85 alpha and p85 beta, we have established brown adipose cell lines with disruption of the Pik3r1 or Pik3r2 gene.
77 14504291 Pik3r1-/- (p85 alpha-/-) cells show a 70% reduction of p85 protein and a parallel reduction of p110.
78 14504291 These cells have a 50% decrease in PI 3-kinase activity and a 30% decrease in Akt activity, leading to decreased insulin-induced glucose uptake and anti-apoptosis.
79 14504291 Pik3r2-/- (p85 beta-/-) cells show a 25% reduction of p85 protein but normal levels of p85-p110 and PI 3-kinase activity, supporting the fact that p85 is more abundant than p110 in wild type. p85 beta-/- cells, however, exhibit significantly increased insulin-induced Akt activation, leading to increased anti-apoptosis.
80 14504291 Reconstitution experiments suggest that the discrepancy between PI 3-kinase activity and Akt activity is at least in part due to the p85-dependent negative regulation of downstream signaling of PI 3-kinase.
81 14504291 Indeed, both p85 alpha-/- cells and p85 beta-/- cells exhibit significantly increased insulin-induced glycogen synthase activation. p85 alpha-/- cells show decreased insulin-stimulated Jun N-terminal kinase activity, which is restored by expression of p85 alpha, p85 beta, or a p85 mutant that does not bind to p110, indicating the existence of p85-dependent, but PI 3-kinase-independent, signaling pathway.
82 14504291 Furthermore, a reduction of p85 beta specifically increases insulin receptor substrate-2 phosphorylation.
83 14504291 Thus, p85 alpha and p85 beta modulate PI 3-kinase-dependent signaling by multiple mechanisms and transmit signals independent of PI 3-kinase activation.
84 14504291 Positive and negative roles of p85 alpha and p85 beta regulatory subunits of phosphoinositide 3-kinase in insulin signaling.
85 14504291 Class IA phosphoinositide (PI) 3-kinase is composed of a p110 catalytic subunit and a p85 regulatory subunit and plays a pivotal role in insulin signaling.
86 14504291 To explore the physiological roles of two major regulatory isoforms, p85 alpha and p85 beta, we have established brown adipose cell lines with disruption of the Pik3r1 or Pik3r2 gene.
87 14504291 Pik3r1-/- (p85 alpha-/-) cells show a 70% reduction of p85 protein and a parallel reduction of p110.
88 14504291 These cells have a 50% decrease in PI 3-kinase activity and a 30% decrease in Akt activity, leading to decreased insulin-induced glucose uptake and anti-apoptosis.
89 14504291 Pik3r2-/- (p85 beta-/-) cells show a 25% reduction of p85 protein but normal levels of p85-p110 and PI 3-kinase activity, supporting the fact that p85 is more abundant than p110 in wild type. p85 beta-/- cells, however, exhibit significantly increased insulin-induced Akt activation, leading to increased anti-apoptosis.
90 14504291 Reconstitution experiments suggest that the discrepancy between PI 3-kinase activity and Akt activity is at least in part due to the p85-dependent negative regulation of downstream signaling of PI 3-kinase.
91 14504291 Indeed, both p85 alpha-/- cells and p85 beta-/- cells exhibit significantly increased insulin-induced glycogen synthase activation. p85 alpha-/- cells show decreased insulin-stimulated Jun N-terminal kinase activity, which is restored by expression of p85 alpha, p85 beta, or a p85 mutant that does not bind to p110, indicating the existence of p85-dependent, but PI 3-kinase-independent, signaling pathway.
92 14504291 Furthermore, a reduction of p85 beta specifically increases insulin receptor substrate-2 phosphorylation.
93 14504291 Thus, p85 alpha and p85 beta modulate PI 3-kinase-dependent signaling by multiple mechanisms and transmit signals independent of PI 3-kinase activation.
94 14504291 Positive and negative roles of p85 alpha and p85 beta regulatory subunits of phosphoinositide 3-kinase in insulin signaling.
95 14504291 Class IA phosphoinositide (PI) 3-kinase is composed of a p110 catalytic subunit and a p85 regulatory subunit and plays a pivotal role in insulin signaling.
96 14504291 To explore the physiological roles of two major regulatory isoforms, p85 alpha and p85 beta, we have established brown adipose cell lines with disruption of the Pik3r1 or Pik3r2 gene.
97 14504291 Pik3r1-/- (p85 alpha-/-) cells show a 70% reduction of p85 protein and a parallel reduction of p110.
98 14504291 These cells have a 50% decrease in PI 3-kinase activity and a 30% decrease in Akt activity, leading to decreased insulin-induced glucose uptake and anti-apoptosis.
99 14504291 Pik3r2-/- (p85 beta-/-) cells show a 25% reduction of p85 protein but normal levels of p85-p110 and PI 3-kinase activity, supporting the fact that p85 is more abundant than p110 in wild type. p85 beta-/- cells, however, exhibit significantly increased insulin-induced Akt activation, leading to increased anti-apoptosis.
100 14504291 Reconstitution experiments suggest that the discrepancy between PI 3-kinase activity and Akt activity is at least in part due to the p85-dependent negative regulation of downstream signaling of PI 3-kinase.
101 14504291 Indeed, both p85 alpha-/- cells and p85 beta-/- cells exhibit significantly increased insulin-induced glycogen synthase activation. p85 alpha-/- cells show decreased insulin-stimulated Jun N-terminal kinase activity, which is restored by expression of p85 alpha, p85 beta, or a p85 mutant that does not bind to p110, indicating the existence of p85-dependent, but PI 3-kinase-independent, signaling pathway.
102 14504291 Furthermore, a reduction of p85 beta specifically increases insulin receptor substrate-2 phosphorylation.
103 14504291 Thus, p85 alpha and p85 beta modulate PI 3-kinase-dependent signaling by multiple mechanisms and transmit signals independent of PI 3-kinase activation.
104 14504291 Positive and negative roles of p85 alpha and p85 beta regulatory subunits of phosphoinositide 3-kinase in insulin signaling.
105 14504291 Class IA phosphoinositide (PI) 3-kinase is composed of a p110 catalytic subunit and a p85 regulatory subunit and plays a pivotal role in insulin signaling.
106 14504291 To explore the physiological roles of two major regulatory isoforms, p85 alpha and p85 beta, we have established brown adipose cell lines with disruption of the Pik3r1 or Pik3r2 gene.
107 14504291 Pik3r1-/- (p85 alpha-/-) cells show a 70% reduction of p85 protein and a parallel reduction of p110.
108 14504291 These cells have a 50% decrease in PI 3-kinase activity and a 30% decrease in Akt activity, leading to decreased insulin-induced glucose uptake and anti-apoptosis.
109 14504291 Pik3r2-/- (p85 beta-/-) cells show a 25% reduction of p85 protein but normal levels of p85-p110 and PI 3-kinase activity, supporting the fact that p85 is more abundant than p110 in wild type. p85 beta-/- cells, however, exhibit significantly increased insulin-induced Akt activation, leading to increased anti-apoptosis.
110 14504291 Reconstitution experiments suggest that the discrepancy between PI 3-kinase activity and Akt activity is at least in part due to the p85-dependent negative regulation of downstream signaling of PI 3-kinase.
111 14504291 Indeed, both p85 alpha-/- cells and p85 beta-/- cells exhibit significantly increased insulin-induced glycogen synthase activation. p85 alpha-/- cells show decreased insulin-stimulated Jun N-terminal kinase activity, which is restored by expression of p85 alpha, p85 beta, or a p85 mutant that does not bind to p110, indicating the existence of p85-dependent, but PI 3-kinase-independent, signaling pathway.
112 14504291 Furthermore, a reduction of p85 beta specifically increases insulin receptor substrate-2 phosphorylation.
113 14504291 Thus, p85 alpha and p85 beta modulate PI 3-kinase-dependent signaling by multiple mechanisms and transmit signals independent of PI 3-kinase activation.
114 16569213 Angiotensin II stimulates phosphorylation of an ectodomain-truncated platelet-derived growth factor receptor-beta and its binding to class IA PI3K in vascular smooth muscle cells.
115 16569213 PI3K (phosphoinositide 3-kinase) activity is involved in Ang (angiotensin) II-stimulated VSMC (vascular smooth muscle cell) growth and hypertrophy.
116 16569213 In the present study, we demonstrate that the inhibition of PI3K in VSMCs by expression of a dominant-negative p85alpha mutant lacking the p110-binding domain (Deltap85), or by treatment of cells with LY294002, inhibited Ang II-stimulated PAI-1 (plasminogen activator inhibitor-1) mRNA expression.
117 16569213 Using a GST (glutathione S-transferase) fusion protein containing the p85 N-terminal SH2 (Src homology 2) domain as 'bait' followed by MS/MS (tandem MS), we identified a 70 kDa fragment of the p70 PDGFR-beta (platelet-derived growth factor receptor-beta) as a signalling adapter that is phosphorylated and recruits the p85 subunit of PI3K after Ang II stimulation of AT1 (Ang II subtype 1) receptors on VSMCs.
118 16569213 Stimulation of VSMCs with Ang II increased tyrosine-phosphorylation of p70 PDGFR-beta at Tyr751 and Tyr1021 and increased its binding to p85.
119 16569213 PDGF also induced phosphorylation of p70 PDGFR-beta, a response inhibited by the PDGF tyrosine kinase selective inhibitor, AG1296.
120 16569213 Ang II-stimulated phosphorylation of the p70 PDGFR-beta was blocked by the AT1 receptor antagonist, candesartan (CV 11974) and was partially inhibited by PP2 {4-amino-5-(4-chlorophenyl)-7-(t-butyl)pyrazolo[3,4-d]pyrimidine}, an Src family kinase inhibitor.
121 16569213 Our result suggests that the p70 PDGFR-beta functions as an adapter that recruits PI3K to the membrane upon AT1 receptor stimulation.
122 17119157 PTEN regulation, a novel function for the p85 subunit of phosphoinositide 3-kinase.
123 17119157 Class I(A) phosphatidylinositol 3-kinase (PI3K), which is composed of a p85 (regulatory) and p110 (catalytic) subunits, is the enzyme generating PI(3,4)P2 and PI(3,4,5)P3 following GFR stimulation.
124 17119157 Examination of frequent genetic alterations in human cancer showed that PTEN (phosphatase with tensin homology on chromosome 10) is the major enzyme that decreases PI(3,4)P2 and PI(3,4,5)P3 cell content.
125 17119157 The recent description of diminished PTEN activity in liver-conditional knockout mice lacking the p85alpha PI3K regulatory subunit reveals a previously unknown p85alpha-dependent negative-feedback pathway that controls PI(3,4)P2 and PI(3,4,5)P3 half-life by regulating PTEN.
126 17827708 Role of phosphatidylinositol 3-kinase activation on insulin action and its alteration in diabetic conditions.
127 17827708 Activation of PI (phosphatidylinositol) 3-kinase is essential for aspects of insulin-induced glucose metabolism, including translocation of GLUT4 to the cell surface and glycogen synthesis.
128 17827708 The enzyme exists as a heterodimer containing a regulatory subunit and one of two widely-distributed isoforms of the p110 catalytic subunit: p110alpha or p110beta.
129 17827708 Activation of PI 3-kinase and its downstream AKT has been demonstrated to be essential for almost all of the insulin-induced glucose and lipid metabolism such as glucose uptake, glycogen synthesis, suppression of glucose output and triglyceride synthesis as well as insulin-induced mitogenesis.
130 17827708 In the obesity-induced insulin resistant condition, JNK and p70S6K are activated and phosphorylate IRS-proteins, which diminishes the insulin-induced tyrosine phosphorylation of IRS-proteins and thereby impairs the PI 3-kinase/AKT activations.
131 17827708 Thus, the drugs which restore the impaired insulin-induced PI 3-kinase/AKT activation, for example, by suppressing JNK or p70S6K, PTEN or SHIP2, could be novel agents to treat diabetes mellitus.