HSF-1: Guardian of the Proteome Through Integration of Longevity Signals to the Proteostatic Network

Autor: Maria I. Lazaro-Pena, Zachary C. Ward, Sifan Yang, Alexandra Strohm, Alyssa K. Merrill, Celia A. Soto, Andrew V. Samuelson
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Frontiers in Aging, Vol 3 (2022)
Druh dokumentu: article
ISSN: 2673-6217
DOI: 10.3389/fragi.2022.861686
Popis: Discoveries made in the nematode Caenorhabditis elegans revealed that aging is under genetic control. Since these transformative initial studies, C. elegans has become a premier model system for aging research. Critically, the genes, pathways, and processes that have fundamental roles in organismal aging are deeply conserved throughout evolution. This conservation has led to a wealth of knowledge regarding both the processes that influence aging and the identification of molecular and cellular hallmarks that play a causative role in the physiological decline of organisms. One key feature of age-associated decline is the failure of mechanisms that maintain proper function of the proteome (proteostasis). Here we highlight components of the proteostatic network that act to maintain the proteome and how this network integrates into major longevity signaling pathways. We focus in depth on the heat shock transcription factor 1 (HSF1), the central regulator of gene expression for proteins that maintain the cytosolic and nuclear proteomes, and a key effector of longevity signals.
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