Yedavalli VSRK, Zhang N, Cai H, Zhang P, Starost MF, Hosmane RS, Jeang KT. Ring expanded nucleoside analogues inhibit RNA helicase and intracellular human immunodeficiency virus type 1 replication.
J Med Chem 2008;
51:5043-51. [PMID:
18680273 DOI:
10.1021/jm800332m]
[Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A series of ring expanded nucleoside (REN) analogues were synthesized and screened for inhibition of cellular RNA helicase activity and human immunodeficiency virus type 1 (HIV-1) replication. We identified two compounds, 1 and 2, that inhibited the ATP dependent activity of human RNA helicase DDX3. Compounds 1 and 2 also suppressed HIV-1 replication in T cells and monocyte-derived macrophages. Neither compound at therapeutic doses was significantly toxic in ex vivo cell culture or in vivo in mice. Our findings provide proof-of-concept that a cellular factor, an RNA helicase, could be targeted for inhibiting HIV-1 replication.
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