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Abstract Title:

Amurensin G induces autophagy and attenuates cellular toxicities in a rotenone model of Parkinson's disease.

Abstract Source:

Biochem Biophys Res Commun. 2013 Mar 29 ;433(1):121-6. Epub 2013 Feb 26. PMID: 23485458

Abstract Author(s):

Hyun-Wook Ryu, Won Keun Oh, Ik-Soon Jang, Junsoo Park

Article Affiliation:

Division of Biological Science and Technology, Yonsei University, Wonju, Republic of Korea.

Abstract:

Although Parkinson's disease is a common neurodegenerative disorder its cause is still unknown. Recently, several reports showed that inducers of autophagy attenuate cellular toxicities in Parkinson's disease models. In this report we screened HEK293 cells that stably express GFP-LC3, a marker of autophagy, for autophagy inducers and identified amurensin G, a compound isolated from the wild grape (Vitis amurensis). Amurensin G treatment induced punctate cytoplasmic expression of GFP-LC3 and increased the expression level of endogenous LC3-II. Incubation of human dopaminergic SH-SY5Y cells with amurensin G attenuated the cellular toxicities of rotenone in a model of Parkinson's disease. Amurensin G inhibited rotenone-induced apoptosis and interfered with rotenone-induced G2/M cell cycle arrest. In addition, knockdown of beclin1, a regulator of autophagy, abolished the effect of amurensin G. These data collectively indicate that amurensin G attenuates cellular toxicities through the induction of autophagy.

Study Type : Human In Vitro

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Sayer Ji
Founder of GreenMedInfo.com

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