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Annu Rev Biochem. 2013;82:295-322. doi: 10.1146/annurev-biochem-072711-163904. Epub 2013 Jan 23.

Extracellular chaperones and proteostasis.

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1
School of Biological Sciences, University of Wollongong, Wollongong, New South Wales 2522, Australia. mrw@uow.edu.au

Abstract

There exists a family of currently untreatable, serious human diseases that arise from the inappropriate misfolding and aggregation of extracellular proteins. At present our understanding of mechanisms that operate to maintain proteostasis in extracellular body fluids is limited, but it has significantly advanced with the discovery of a small but growing family of constitutively secreted extracellular chaperones. The available evidence strongly suggests that these chaperones act as both sensors and disposal mediators of misfolded proteins in extracellular fluids, thereby normally protecting us from disease pathologies. It is critically important to further increase our understanding of the mechanisms that operate to effect extracellular proteostasis, as this is essential knowledge upon which to base the development of effective therapies for some of the world's most debilitating, costly, and intractable diseases.

[Indexed for MEDLINE]

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