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Review, Journal: The Communication Between the PI3K/AKT/mTOR Pathway and Y-box Binding Protein-1 in Gynecological Cancer. (Pubmed Central) - Jan 18, 2020 Studies of the mechanistic (mammalian) target of rapamycin inhibitors (mTOR) represent a step towards the targeted treatment of gynecological cancers...Although several components differentially expressed in patients with ovarian, endometrial, and cervical cancer of the mTOR were identified, there are only a few investigated downstream actors in gynecological cancer connecting them with YB-1. Our analysis shows that YB-1 is an important player impacting AKT as well as the downstream actors interacting with mTOR such as epidermal growth factor receptor (EGFR), Snail or E-cadherin.
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Journal, IO Biomarker: Melatonin alleviates hypoxia-induced cardiac apoptosis through PI3K/Akt pathway. (Pubmed Central) - Jan 18, 2020 The protective effects of melatonin were abolished by a PI3K/Akt-inhibitor, LY294002. Our results demonstrated that melatonin confers cardioprotection by inhibiting apoptosis through the activation of PI3K/Akt signaling pathway in hypoxic cardiomyocytes.
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Preclinical, Journal: IGF1R as druggable target mediating PI3K-δ inhibitor resistance in a murine model of chronic lymphocytic leukemia. (Pubmed Central) - Jan 16, 2020 The phosphatidylinositol 3-kinase delta (PI3K-δ) inhibitor idelalisib has been approved for treatment of chronic lymphocytic leukemia (CLL) and non-Hodgkin lymphoma, but the mechanisms conferring resistance in a subset of patients are unknown...Our results thus highlight that alternative signalling cascades are playing a predominant role in the resistance and survival of cancer cells under PI3K-δ inhibition. We also demonstrate that these pathway alterations can serve as therapeutic targets, as inhibition of IGF1R offered efficacious salvage treatment for PI3K-δ inhibitor resistant tumors in vitro and in vivo.
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Then we found NLGN3 could increase the phosphorylation level of AKT and the transcription activity of FOXO family, suggesting NLGN3 activated PI3K/AKT pathway, inhibition of PI3K/AKT pathway in NLGN3 overexpressing cells inhibited cell proliferation, confirming NLGN3 promoted neuroblastoma proliferation through activating PI3K/AKT pathway. In summary, we found NLGN3 promoted neuroblastoma cell proliferation and growth through activating PI3K/AKT pathway and providing a new target for neuroblastoma therapy.
- |||||||||| Journal, IO Biomarker: Resveratrol protects against cadmium chloride-induced hippocampal neurotoxicity by inhibiting ER stress and GAAD 153 and activating sirtuin 1/AMPK/Akt. (Pubmed Central) - Jan 16, 2020
In both control and CdCl -treated rats, pharmacological inhibtion of SIRT1, AMPK, and Akt compleltely abolished all effects afforded by RES. In conclusion, CdCl -induced hippocampal apopotis is associated with reduction of SIRT1/AMPK/Akt activity levels, ROS generation, downregulation of Bcl-2, and activities, activation of ER stress, and GAAD 153, whereas RES is able to reverse these effects through activation of SIRT1/AMPK/Akt.
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Furthermore, PDGF-caused activation of PI3K/Akt pathway in ASMCs was inhibited by esculetin. These findings suggest that esculetin might exert its inhibitory effect on PDGF-induced ASMC phenotype switching through inhibition of PI3K/Akt pathway.
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In HCC, the Hh and PI3K-AKT signaling pathways are both abnormally activated, and Shh, Gli1, FAK, p-FAK and p-AKT can serve as indicators to predict the prognosis of liver cancer. The PI3k/Akt/mTOR signaling pathway mediated by exosomes extracted from vaginal secretions may provide candidate diagnostic biomarkers or potential therapeutic targets.
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Blocking the PI3K/AKT signaling pathway by a specific inhibitor induced similar apoptosis induction and lower proliferation, suggesting that the PI3K/AKT signaling pathway was also involved in CXCL8 action. Taken together, our findings demonstrate that BM-MSCs are the main source of CXCL8 in the AML bone marrow microenvironment and promote leukemogenesis via the PI3K/AKT signaling pathway, indicating a novel therapeutic target.-Cheng, J., Li, Y., Liu, S., Jiang, Y., Ma, J., Wan, L., Li, Q., Pang, T. CXCL8 derived from mesenchymal stromal cells supports survival and proliferation of acute myeloid leukemia cells through the PI3K/AKT pathway.
- |||||||||| Preclinical, Journal, IO Biomarker: Lunasin attenuates oxidant-induced endothelial injury and inhibits atherosclerotic plaque progression in ApoE mice by up-regulating heme oxygenase-1 via PI3K/Akt/Nrf2/ARE pathway. (Pubmed Central) - Jan 16, 2020
In conclusion, our in vitro and in vivo data suggest that lunasin protects VECs from oxidative damage by enhancing heme oxygenase-1 expression via activation of the PI3K/Akt/nuclear factor erythroid 2-related factor 2/antioxidant response element pathway and inhibiting mitochondria-dependent apoptosis, thereby effectively attenuating atherosclerosis in HFD-fed ApoE mice. Lunasin may act as a potential therapeutic agent for the prevention and treatment of atherosclerosis.-Gu, L., Ye, P., Li, H., Wang, Y., Xu, Y., Tian, Q., Lei, G., Zhao, C., Gao, Z., Zhao, W., Tan, S. Lunasin attenuates oxidant-induced endothelial injury and inhibits atherosclerotic plaque progression in ApoE mice by up-regulating heme oxygenase-1 via PI3K/Akt/Nrf2/ARE pathway.
- |||||||||| Regulation of Dual Specificity Phosphatases (DUSPs) by fibroblast growth factor 2 in bovine granulosa cells () - Jan 16, 2020 - Abstract #Fertility2020FERTILITY_315;
A major transcription factor involved in regulation of FGF-target genes is EGR1; adenoviral overexpression of EGR1 increased DUSP1, DUSP5 and DUSP6 mRNA levels, which not diminished by the presence of MAPK3/1 inhibitor. We conclude that DUSP1, DUSP5 and DUSP6 are target genes of FGF2 and are controlled through calcium signaling and a MAPK3/1 - EGR1 pathway.
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