Toxicol Lett:下调GSK-3β来增强细胞自噬能够减轻铂诱导的耳毒性

2019-07-09 AlexYang MedSci原创

之前的研究报道了选择性GSK-3β抑制剂或者上调细胞自噬能够减轻铂诱导的耳毒性。其他研究表明了GSK-3β的活性与细胞自噬水平紧密相关。最近,有研究人员初步探索了体内和体外中细胞自噬在GSK-3β抑制剂减轻铂诱导的听力损失方面的影响。研究人员在铂诱导的耳毒性小鼠模型中观察到了由GSK-3β抑制剂诱导的外听毛细胞(OHCs)细胞自噬的变化。另外,研究人员利用细胞自噬抑制剂3-MA在体外试验中观察GS

之前的研究报道了选择性GSK-3β抑制剂或者上调细胞自噬能够减轻铂诱导的耳毒性。其他研究表明了GSK-3β的活性与细胞自噬水平紧密相关。最近,有研究人员初步探索了体内和体外中细胞自噬在GSK-3β抑制剂减轻铂诱导的听力损失方面的影响。

研究人员在铂诱导的耳毒性小鼠模型中观察到了由GSK-3β抑制剂诱导的外听毛细胞(OHCs)细胞自噬的变化。另外,研究人员利用细胞自噬抑制剂3-MA在体外试验中观察GSK-3β去激活情况下,细胞自噬抑制剂对细胞的保护作用情况。研究人员推测了细胞自噬、GSK-3β和细胞损伤之间的关系。另外,GSK-3β的负调控能够显著的增强细胞自噬和减弱铂诱导的听力损失、OHC死亡和凋亡。细胞自噬抑制剂3-MA能够逆转GSK-3β负调控的保护性作用。

最后,研究人员指出,他们的结果表明了增强细胞自噬应该是GSK-3β抑制剂的关键下游作用,从而进一步减轻铂诱导的耳毒性。

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