Design of a Novel and Selective IRAK4 Inhibitor Using Topological Water Network Analysis and Molecular Modeling Approaches

Autor: Myeong Hwi Lee, Anand Balupuri, Ye-rim Jung, Sungwook Choi, Areum Lee, Young Sik Cho, Nam Sook Kang
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Molecules, Vol 23, Iss 12, p 3136 (2018)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules23123136
Popis: Protein kinases are deeply involved in immune-related diseases and various cancers. They are a potential target for structure-based drug discovery, since the general structure and characteristics of kinase domains are relatively well-known. However, the ATP binding sites in protein kinases, which serve as target sites, are highly conserved, and thus it is difficult to develop selective kinase inhibitors. To resolve this problem, we performed molecular dynamics simulations on 26 kinases in the aqueous solution, and analyzed topological water networks (TWNs) in their ATP binding sites. Repositioning of a known kinase inhibitor in the ATP binding sites of kinases that exhibited a TWN similar to interleukin-1 receptor-associated kinase 4 (IRAK4) allowed us to identify a hit molecule. Another hit molecule was obtained from a commercial chemical library using pharmacophore-based virtual screening and molecular docking approaches. Pharmacophoric features of the hit molecules were hybridized to design a novel compound that inhibited IRAK4 at low nanomolar levels in the in vitro assay.
Databáze: Directory of Open Access Journals
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