Transformation of the Non-Selective Aminocyclohexanol-Based Hsp90 Inhibitor into a Grp94-Seletive Scaffold
Document Type
Article
Publication Date
2017
Digital Object Identifier (DOI)
https://doi.org/10.1021/acschembio.6b00747
Abstract
Glucose regulated protein 94 kDa, Grp94, is the endoplasmic reticulum (ER) localized isoform of heat shock protein 90 (Hsp90) that is responsible for the trafficking and maturation of toll-like receptors, immunoglobulins, and integrins. As a result, Grp94 has emerged as a therapeutic target to disrupt cellular communication, adhesion, and tumor proliferation, potentially with fewer side effects compared to pan-inhibitors of all Hsp90 isoforms. Although, the N-terminal ATP binding site is highly conserved among all four Hsp90 isoforms, recent cocrystal structures of Grp94 have revealed subtle differences between Grp94 and other Hsp90 isoforms that has been exploited for the development of Grp94-selective inhibitors. In the current study, a structure-based approach has been applied to a Grp94 nonselective compound, SNX 2112, which led to the development of 8j (ACO1), a Grp94-selective inhibitor that manifests ∼440 nM affinity and >200-fold selectivity against cytosolic Hsp90 isoforms.
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
ACS Chemical Biology, v. 12, issue 1, p. 244-253
Scholar Commons Citation
Mishra, Sanket J.; Ghosh, Suman; Stothert, Andrew R.; Dickey, Chad A.; and Blagg, Brian S. J., "Transformation of the Non-Selective Aminocyclohexanol-Based Hsp90 Inhibitor into a Grp94-Seletive Scaffold" (2017). Molecular Medicine Faculty Publications. 105.
https://digitalcommons.usf.edu/mme_facpub/105
