Remodeling of Proteostasis Upon Transition to Adulthood is Linked to Reproduction Onset.

Abstract:

:Protein folding and clearance networks sense and respond to misfolded and aggregation-prone proteins by activating cytoprotective cell stress responses that safeguard the proteome against damage, maintain the health of the cell, and enhance lifespan. Surprisingly, cellular proteostasis undergoes a sudden and widespread failure early in Caenorhabditis elegans adulthood, with marked consequences on proteostasis functions later in life. These changes in the regulation of quality control systems, such as chaperones, the ubiquitin proteasome system and cellular stress responses, are controlled cell-nonautonomously by the proliferation of germline stem cells. Here, we review recent studies examining changes in proteostasis upon transition to adulthood and how proteostasis is modulated by reproduction onset, focusing on C. elegans. Based on these and our own findings, we propose that the regulation of quality control systems is actively remodeled at the point of transition between development and adulthood to influence the subsequent course of aging.

journal_name

Curr Genomics

journal_title

Current genomics

authors

Shai N,Shemesh N,Ben-Zvi A

doi

10.2174/1389202915666140221005023

subject

Has Abstract

pub_date

2014-04-01 00:00:00

pages

122-9

issue

2

eissn

1389-2029

issn

1875-5488

pii

CG-15-122

journal_volume

15

pub_type

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