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Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán

2008, Number 4

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Rev Invest Clin 2008; 60 (4)

Functional significance of heat shock protein 90

Cortés-González CC, Ramírez-González V, Ariza AC, Bobadilla NA

Language: Spanish
References: 62
Page: 311-320
PDF size: 171.72 Kb.


ABSTRACT

The heat shock protein 90 kDα (Hsp90) subfamily is constituted by five isoforms, among them Hsp90α and Hsp90β are the more abundant cytosolic proteins. These two proteins are molecular chaperons that participate in numerous cellular processes, through interacting with more than 100 proteins known as client proteins of Hsp90. These client proteins include: transcriptional factors, kinase proteins and other proteins that participate in transcriptional and transductional regulation such as steroid hormone receptors and nitric oxide synthases. This review offers a retrospective in the recent information about molecular and cellular functions of Hsp90 in the vascular physiology. In addition, the studies that evaluate Hsp90 role in the renal physiology and pathophysiology are discussed. Finally, the molecular tools developed to manipulate the Hsp90 expression in vitro and in vivo, through its inhibition or over-expression are reviewed. All these studies together have allowed increasing our knowledge regarding the role of Hsp90 during normal and pathophysiological conditions.


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