Small molecule inhibitors of hantavirus infection

[摘要] Hantaviruses use alpha(v)beta(3) integrins on the surface of human host cells as a gateway to invasion, hence compounds that target this receptor may be used as antiviral agents. To accomplish this aim, new peptidomimetic compounds were selected based on similarity to a cyclic peptide known to bind the alpha(v)beta(3) receptor. This first round of biological screening identified peptidomimetic molecules which were effective hantavirus inhibitors in the low micromolar range, two thousand times more potent than the original cyclic peptide. Pharmacophore models were built to broaden the structural diversity of the second set of compounds screened. Structure-activity relationships (SAR) were drawn from the entire dataset. Further characterization by dose-response studies revealed that three compounds had potency in the nanomolar range. Selectivity assays with a panel of hantaviruses supported the mechanism of inhibition by targeting the alpha(v)beta(3) receptor, through the beta(3) integrin. (C) 2010 Published by Elsevier Ltd.

[发布日期] 2010-12-01

[关键词] Anti-hantavirus;Sin Nombre virus (SNV);Peptidomimetics;Structure-activity relationships;Entry inhibitor