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PMID |
Sentence |
1 |
11147784
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IGF-I promotes the survival of multiple cell types by activating the IGF-I receptor (IGF-IR), which signals downstream to a serine/threonine kinase termed Akt.
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2 |
11916914
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Phosphorylation of p70(S6K) was also increased by IGF-1/glucose, but not by TGF-alpha/EGF, despite upstream PKB activation.
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3 |
16061670
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The present study shows that PTEN can partially inhibit the Wnt-1-induced mammary tumorigenesis in early neoplastic stages by blocking the AKT pathway and by reducing the IGF-I receptor levels in mammary gland.
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4 |
17046573
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We found that the addition of either Ins or IGF-1 to BMMCs triggers the phosphorylation of protein kinase B (PKB) and p38 kinase but not extracellular signal-regulated kinase (Erk).
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5 |
21239445
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IGF-I induces skeletal muscle hypertrophy by stimulating protein synthesis and suppressing the protein degradation pathway; the downstream signaling pathways Akt-mammalian target of rapamycin (mTOR)-p70-kDA-S6-kinase (p70S6K), and Forkhead box O1 (FoxO1) play essential roles in this regulation.
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6 |
15671479
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Foxo1, a member of the Fox0 subfamily of winged-helix forkhead transcription factors, is a target of insulin and insulin-like growth factor-1 (IGF-1) signal transduction pathways that activate protein kinase B (PKB) in pancreatic beta cells.
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7 |
21549192
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Treatment of TR-iBRB2 cell with IGF-1 (100ng/ml for 0-24h) increases phosphorylation of (i) Akt Thr308, and its substrates including GSK-3? at Ser9, which inactivates its kinase function, and (ii) CREB at Ser133 (activation).
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8 |
21673100
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The addition of a specific AKT inhibitor or expression of an AKT1 short hairpin RNA inhibited AMPK S485 phosphorylation, and it attenuated the IGF-I-induced decrease in AMPK T172 phosphorylation.
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9 |
18467435
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Prevention of atrophy by IGF-I was associated with restoration of Akt phosphorylation and beta-catenin levels.
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10 |
18467435
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In conclusion, this work indicates that Akt, GSK-3beta, and beta-catenin probably contribute together to the IGF-I anti-atrophic effect in GC-induced muscle atrophy.
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11 |
19472218
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We have also shown that inhibition of tyrosine kinase activity of insulin receptor (IR) and/or insulin-like growth factor 1 (IGF1) receptor (IGFR) reverses the PLTP-induced increase in levels of phosphorylated Akt (pAkt(Thr308) and pAkt(Ser473)), suggesting that PLTP-mediated activation of the PI3K/Akt pathway is dependent on IR/IGFR receptor tyrosine kinase activity.
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12 |
22034225
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More importantly, GH and IGF-I synergistically activate both signal transducer and activator of transcription 5 and Akt pathways.
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