期刊
JOURNAL OF PATHOLOGY
卷 214, 期 2, 页码 267-275出版社
WILEY
DOI: 10.1002/path.2273
关键词
heat shock proteins; brain; neurodegeneration; inflammation
Stress proteins or heat shock proteins (HSPs) are ubiquitous cellular components that have long been known to act as molecular chaperones. By assisting proper folding and transport and by assisting in the degradation of aberrant proteins, they play key roles of proteins, in cellular metabolism. The frequent accumulation of insoluble protein aggregates during chronic neurodegenerative disorders suggests failure of HSP functions to be a common denominator among such diseases. Recent developments have clarified that functions of HSPs extend well beyond their role in protein folding and degradation alone. Stress-inducible HSPs also regulate apoptosis, antigen presentation, inflammatory signalling pathways and, intriguingly, also serve as extracellular mediators of inflammation. Several receptors have been identified for extracellular HSPs, which control inflammatory pathways similar to those activated by cytokines and chemokines. In this review, both the traditional and the exciting novel functions of HSPs are discussed, with a focus on their relevance for neurodegeneration and neuroinflammation. Recent advances in this field suggest that HSPs represent attractive novel targets as well as therapeutic entities for CNS disorders. Copyright (C) 2007 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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