Protein homeostasis and aging in neurodegeneration.
Genetic and environmental factors responsible for numerous neurodegenerative diseases vary between disorders, yet age remains a universal risk factor. Age-associated decline in protein homeostasis, or proteostasis, enables disease-linked proteins to adopt aberrant tertiary structures, accumulate as higher-ordered aggregates, and cause a myriad of cellular dysfunctions and neuronal death. However, recent findings suggest that the assembly of disease proteins into tightly ordered aggregates can significantly delay proteotoxic onset. Furthermore, manipulation of metabolic pathways through key signaling components extends lifespan, bolsters proteostasis networks, and delays the onset of proteotoxicity. Thus, understanding the relationship between proteostasis and aging has provided important insights into neurodegeneration.
Douglas
Peter M
PM
Howard Hughes Medical Institute, Glenn Center for Aging Research, Molecular and Cell Biology Laboratory, The Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Dillin
Andrew
A
D000375:Aging / Q000378:metabolism*; D000818:Animals; D002477:Cells / Q000378:metabolism; D006706:Homeostasis; D006801:Humans; D053858:Metabolic Networks and Pathways; D009410:Nerve Degeneration / Q000378:metabolism* / Q000503:physiopathology; D011506:Proteins / Q000737:chemistry* / Q000378:metabolism*; D015398:Signal Transduction
D011506:Proteins
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