期刊
EXPERIMENTAL ANIMALS
卷 60, 期 4, 页码 329-345出版社
INT PRESS EDITING CENTRE INC
DOI: 10.1538/expanim.60.329
关键词
Atg5; Atg7; autophagy; p62; protein degradation
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Japan Science and Technology Agency
Autophagy is a cellular degradation system in which cytoplasmic components including organelles are sequestered by double membrane structures called autophagosomes and sequestered materials are degraded by lysosomal hydrolases for supply of amino acids and for cellular homeostasis. The autophagy induced in response to nutrient deprivation is executed in a nonselective fashion, and adaptation to nutrient-poor conditions is the main purpose of autophagy. On the other hand, recent studies have shed light on another indispensable role for starvation-independent or constitutive autophagy in cellular homeostasis, which is mediated by selective degradation of a specific substrate(s). Herein, we introduce pathophysiological roles of starvation-induced, constitutive, and selective autophagy (in particular, selective turnover of p62 through autophagy) disclosed by autophagy-deficient mouse models.
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