Abstract
Heat Shock Protein 90 (HSP90) is a ubiquitous molecular chaperone that is considered to be the most abundantly expressed protein in various human cancers such as breast, lung, colon, prostate, leukemia and skin. The master regulator, HSP90 plays a pivotal role in the conformational stabilization, maturation and activity of its various labile oncogenic client proteins such as p53, ErbB2, Bcr-Abl, Akt, Her-2, Cdk4, Cdk6, Raf-1 and v-Src in altered cells. Hence, making a guaranteed attempt to inhibit such a master regulator for cancer therapy appears to be a potential approach for combinatorial inhibition of numerous oncogenic signaling pathways simultaneously. Considerable efforts are being under way to develop novel molecular targets and its inhibitors that may block key signaling pathways involved in the process of tumorigenesis and metastasis. In this regards, HSP90 has acquired immense interest as a potent anticancer drug-target due to its key functional link with multiple signaling pathways involved in the process of cell proliferation and cell survival. Notably, geldanamycin and its derivatives (17-AAG, 17-DMAG) have shown quite encouraging results in inhibiting HSP90 function in several cancers and currently almost 17 drug candidates known to be target HSP90 are being under clinical trials either as single agents or combinatorial therapy. Hence, this review is an attempt to get new insight into novel drug target therapy by focusing on recent advances made in understanding HSP90 chaperone structure-function relationships, identification of new HSP90 client proteins and, more importantly, on the advancements of HSP90 targeted therapy based on various existing and emerging classical inhibitors.
Keywords: Heat shock protein, HSP90, Cancer, Drug, 17-AAG, 17-DMG, IP104.
Current Pharmaceutical Design
Title:Current Understanding of HSP90 as a Novel Therapeutic Target: An Emerging Approach for the Treatment of Cancer
Volume: 22 Issue: 20
Author(s): Absarul Haque, Qamre Alam, Mohammad Zubair Alam, Esam I. Azhar, Khalid Hussain Wali Sait, Nisrin Anfinan, Gohar Mushtaq, Mohammad Amjad Kamal and Mahmood Rasool
Affiliation:
Keywords: Heat shock protein, HSP90, Cancer, Drug, 17-AAG, 17-DMG, IP104.
Abstract: Heat Shock Protein 90 (HSP90) is a ubiquitous molecular chaperone that is considered to be the most abundantly expressed protein in various human cancers such as breast, lung, colon, prostate, leukemia and skin. The master regulator, HSP90 plays a pivotal role in the conformational stabilization, maturation and activity of its various labile oncogenic client proteins such as p53, ErbB2, Bcr-Abl, Akt, Her-2, Cdk4, Cdk6, Raf-1 and v-Src in altered cells. Hence, making a guaranteed attempt to inhibit such a master regulator for cancer therapy appears to be a potential approach for combinatorial inhibition of numerous oncogenic signaling pathways simultaneously. Considerable efforts are being under way to develop novel molecular targets and its inhibitors that may block key signaling pathways involved in the process of tumorigenesis and metastasis. In this regards, HSP90 has acquired immense interest as a potent anticancer drug-target due to its key functional link with multiple signaling pathways involved in the process of cell proliferation and cell survival. Notably, geldanamycin and its derivatives (17-AAG, 17-DMAG) have shown quite encouraging results in inhibiting HSP90 function in several cancers and currently almost 17 drug candidates known to be target HSP90 are being under clinical trials either as single agents or combinatorial therapy. Hence, this review is an attempt to get new insight into novel drug target therapy by focusing on recent advances made in understanding HSP90 chaperone structure-function relationships, identification of new HSP90 client proteins and, more importantly, on the advancements of HSP90 targeted therapy based on various existing and emerging classical inhibitors.
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Haque Absarul, Alam Qamre, Zubair Alam Mohammad, I. Azhar Esam, Hussain Wali Sait Khalid, Anfinan Nisrin, Mushtaq Gohar, Amjad Kamal Mohammad and Rasool Mahmood, Current Understanding of HSP90 as a Novel Therapeutic Target: An Emerging Approach for the Treatment of Cancer, Current Pharmaceutical Design 2016; 22 (20) . https://dx.doi.org/10.2174/1381612822666160325152200
DOI https://dx.doi.org/10.2174/1381612822666160325152200 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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