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Heat shock response: Pathophysiological implications



Heat shock response: Pathophysiological implications



Annals of Medicine 29(1): 73-78



All organisms exposed to environmental stress conditions share a common molecular response characterized by a dramatic change in the pattern of gene expression followed by an elevated synthesis of heat shock or stress proteins. These proteins function as molecular chaperones to protect cells from environmental stress damage by binding to partially denatured proteins, dissociating protein aggregates, and regulating the correct folding and intracellular translocation of newly synthesized polypeptides. Accumulating evidence supports a role for heat shock proteins in a number of disease states of which inflammatory reactions and ischaemia provide the best studied examples. The inducible heat shock response involves transcriptional gene activation mediated by specific regulatory proteins called heat shock transcription factors, which bind to the promoter of heat shock genes in a sequence-specific manner. However, the signalling pathways leading to the activation of these transcription factors need to be characterized in more detail to be able to understand the role, cause, or consequence, of heat shock proteins in human diseases. This review presents recent progress in unravelling the regulation of heat shock gene expression in cells subjected to heat or other forms of stress. By using inflammatory responses and myocardial ischaemia as examples, the putative use of heat shock proteins are discussed as targets for future therapeutic applications.

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Accession: 008759516

Download citation: RISBibTeXText

PMID: 9073326

DOI: 10.3109/07853899708998745



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