Zhong HJ, Lin S, Tam IL, Lu L, Chan DSH, Ma DL, Leung CH. In silico identification of natural product inhibitors of JAK2.
Methods 2014;
71:21-5. [PMID:
25038528 DOI:
10.1016/j.ymeth.2014.07.003]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/02/2014] [Accepted: 07/04/2014] [Indexed: 01/15/2023] Open
Abstract
Emodic acid (1) and 6-chloroemodic acid (2) have been identified from a natural product database as useful scaffolds for the future development of novel JAK2 inhibitors using structure-based high-throughput virtual screening. Low-energy binding conformations of 1 and 2 in the JAK2 PTK domain were generated by virtual ligand docking and were found to overlap considerably with the binding pose of CMP6, a known JAK2 inhibitor. Compounds 1 and 2 displayed low micromolar efficacies against JAK2 enzyme activity and JAK2 autophosphorylation in human erythroleukemia cells, and inhibited STAT3 DNA-binding activity in a human hepatocarcinoma cell line.
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