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Synthetic inhibitor leads of human tropomyosin receptor kinase A (hTrkA)†‡§¶
Govindan Subramanian,Rajendran Vairagoundar,Scott J. Bowen,Nicole Roush,Theresa Zachary,Christopher Javens,Tracey Williams,Ann Janssen,Andrea Gonzales
RSC Medicinal Chemistry Pub Date : 01/10/2020 00:00:00 , DOI:10.1039/C9MD00554D
Abstract

In silico virtual screening followed by in vitro biochemical, biophysical, and cellular screening resulted in the identification of distinctly different hTrkA kinase domain inhibitor scaffolds. X-ray structural analysis of representative inhibitors bound to hTrkA kinase domain defined the binding mode and rationalized the mechanism of action. Preliminary assessment of the sub-type selectivity against the closest hTrkB isoform, and early ADME guided the progression of select inhibitor leads in the screening cascade. The possibility of the actives sustaining to known hTrkA resistance mutations assessed in silico offers initial guidance into the required multiparametric lead optimization to arrive at a clinical candidate.

Graphical abstract: Synthetic inhibitor leads of human tropomyosin receptor kinase A (hTrkA)
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