Abstract Title:

Structure-based virtual screening for the discovery of natural inhibitors for human rhinovirus coat protein.

Abstract Source:

J Med Chem. 2008 Feb 28;51(4):842-51. Epub 2008 Feb 5. PMID: 18247552

Abstract Author(s):

Judith M Rollinger, Theodora M Steindl, Daniela Schuster, Johannes Kirchmair, Kathrin Anrain, Ernst P Ellmerer, Thierry Langer, Hermann Stuppner, Peter Wutzler, Michaela Schmidtke


Inhibitors of the human rhinovirus (HRV) coat protein are promising candidates to treat and prevent a number of upper respiratory diseases. The aim of this study was to find antiviral compounds from nature, focusing on the HRV coat protein. Through computational structure-based screening of an in-house 3D database containing 9676 individual plant metabolites from ancient herbal medicines, combined with knowledge from traditional use, we selected sesquiterpene coumarins from the gum resin asafetida as promising natural products. Chromatographic separation steps resulted in the isolation of microlobidene (1), farnesiferol C (2), farnesiferol B (3), and kellerin (4). Determination of the inhibition of the HRV-induced cytopathic effect for serotypes 1A, 2, 14, and 16 revealed a dose-dependent and selective antirhinoviral activity against serotype 2 for asafetida (IC50 = 11.0 microg/mL) and its virtually predicted constituents 2 (IC50 = 2.5 microM) and 3 (IC50 = 2.6 microM). Modeling studies helped to rationalize the retrieved results.

Study Type : In Vitro Study

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