A synthesized curcumin derivative activates TFEB to promote autophagy and lysosome biogenesis and pr

来源 :The 7th International Symposium on Autophagy 2015(第七届自噬国际研讨会 | 被引量 : 0次 | 上传用户:martinlt
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  Autophagy dysfunction is a common feature in neurodegenerative disorders caused by toxic,aggregate-prone proteins accumulation.Increasing evidence have demonstrated that genetic or pharmacological activation of transcription factor EB (TFEB), a master regulator of autophagy and lysosomal biogenesis, ameliorates neurotoxicity and rescue neurodegenerative phenotypes in several animal models of neurodegenerative diseases.Current known TFEB activators are mainly inhibitors of mammalian target of rapamycin (MTOR).By screening a series of curcumin derivatives, a potent TFEB activator is identified in this study.The small molecule directly binds to TFEB to inhibit MTOR-TFEB-YVVHA interaction, thus promoting TFEB nuclear translocation without inhibiting MTOR activity.By activating TFEB, the compound enhances autophagy and lysosome biogenesis to degrade SNCA/alpha-synuclein in vitro and in vivo.This novel TFEB activator deserves further studies in animal models of neurodegenerative diseases.
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