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Inhibitor GSK690693 extends Drosophila lifespan via reduce AKT signaling pathway

Aging is a process involving physiological changes that lead to the decline of biological functions of various tissues and organs of the body. Therefore, it is crucial to find anti-aging drugs that can intervene with the changes induced because of aging and slow down the degeneration of the biological functions. Among many signaling pathways linked with aging and aging-related diseases, PI3K-AKT signaling pathway has attracted major attention in aging biology. In this research paper, we have demonstrated that AKT inhibitor GSK690693 can extend lifespan in Drosophila irrespective of start of the treatment from the beginning of life or the mid-life. Effect of GSK690693 for lifespan extension has been primarily related to the improvements in oxidative resistance, intestinal integrity and increased autophagy, but not in physical activity or starvation resistance. Furthermore, GSK690693 treatment reduced the activation of AKT and ERK, consequently activating FOXO, GSK-3β and apoptosis to modulate longevity of flies. Remarkably, GSK690693 did not induce hyperglycemia after treatment. The results indicate that GSK690693 may become an effective compound for anti-aging intervention.

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S1113 GSK690693 GSK690693 is a pan-Akt inhibitor targeting Akt1/2/3 with IC50 of 2 nM/13 nM/9 nM in cell-free assays, also sensitive to the AGC kinase family: PKA, PrkX and PKC isozymes. GSK690693 also potently inhibits AMPK and DAPK3 from the CAMK family with IC50 of 50 nM and 81 nM, respectively. GSK690693 affects Unc-51-like autophagy activating kinase 1 (ULK1) activity, robustly inhibits STING-dependent IRF3 activation. Phase 1.

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PKC DAPK Akt STING Autophagy AMPK ULK PKA