期刊
AGEING RESEARCH REVIEWS
卷 8, 期 3, 页码 150-159出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.arr.2009.03.001
关键词
Protein folding; Quality control; Aging; Endoplasmic reticulum stress response; Unfolded protein response
The endoplasmic reticulum (ER) is a multifunctional organelle which co-ordinates protein folding, lipid biosynthesis, calcium storage and release. Perturbations that disrupt ER homeostasis lead to the misfolding of proteins, ER stress and up-regulation of a signaling pathway called the ER stress response or the unfolded protein response (UPR). The UPR is characterized by the induction of chaperones, degradation of misfolded proteins and attenuation of protein translation. Age-related declines and activity in key molecular chaperones and folding enzymes compromise proper protein folding and the adaptive response of the UPR. This review will highlight age-related changes in the protein folding machinery and in the UPR. (C) 2009 Elsevier Ireland Ltd. All rights reserved.
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