This article is part of the supplement: Proceedings of the 8th International Conference on Alzheimer's Disease Drug Discovery
Heat shock protein 90: translation from cancer to Alzheimer's disease treatment?
1 Laboratory of Molecular and Cellular Neuroscience, The Rockefeller University and Fisher Foundation for Alzheimer's Disease, New York, NY 10021, USA
2 Department of Medicine and Program in Molecular Pharmacology and Chemistry, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA
BMC Neuroscience 2008, 9(Suppl 2):S7 doi:10.1186/1471-2202-9-S2-S7Published: 3 December 2008
Both malignant transformation and neurodegeneration, as it occurs in Alzheimer's disease, are complex and lengthy multistep processes characterized by abnormal expression, post-translational modification, and processing of certain proteins. To maintain and allow the accumulation of these dysregulated processes, and to facilitate the step-wise evolution of the disease phenotype, cells must co-opt a compensatory regulatory mechanism. In cancer, this role has been attributed to heat shock protein 90 (Hsp90), a molecular chaperone that maintains the functional conformation of multiple proteins involved in cell-specific oncogenic processes. In this sense, at the phenotypic level, Hsp90 appears to serve as a biochemical buffer for the numerous cancer-specific lesions that are characteristic of diverse tumors. The current review proposes a similar role for Hsp90 in neurodegeneration. It will present experimentally demonstrated, but also hypothetical, roles that suggest Hsp90 can act as a regulator of pathogenic changes that lead to the neurodegenerative phenotype in Alzheimer's disease.