Cellular and Molecular Life Sciences

, Volume 70, Issue 14, pp 2463–2472 | Cite as

Hsp90 regulation of mitochondrial protein folding: from organelle integrity to cellular homeostasis

  • Dario C. Altieri


Although essential for energy production and cell fate decisions, the mechanisms that govern protein homeostasis, or proteostasis, in mitochondria are only recently beginning to emerge. Fresh experimental evidence has uncovered a role of molecular chaperones of the heat shock protein 90 (Hsp90) family in overseeing the protein folding environment in mitochondria. Initially implicated in protection against cell death, there is now evidence that Hsp90-directed protein quality control in mitochondria connects to hosts of cellular homeostatic networks that become prominently exploited in human cancer.


Apoptosis Autophagy Hsp90 Mitochondrial permeability transition Tumor progression 



This work was supported by National Institutes of Health Grants CA140043, CA78810 and CA118005.

Conflict of interest

The author declares that no conflict of interest exists.


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Copyright information

© Springer Basel 2012

Authors and Affiliations

  1. 1.Prostate Cancer Discovery and Development ProgramThe Wistar Institute Cancer CenterPhiladelphiaUSA

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