Mycobiology.  2016 Jun;44(2):117-120. 10.5941/MYCO.2016.44.2.117.

Neuraminidase Inhibitors from the Fruiting Body of Phellinus igniarius

Affiliations
  • 1Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Chonbuk National University, Iksan 54596, Korea. bsyun@jbnu.ac.kr

Abstract

During our ongoing investigation of neuraminidase inhibitors from medicinal fungi, we found that the fruiting bodies of Phellinus igniarius exhibited significant inhibitory activity against neuraminidase from recombinant H3N2 influenza viruses. Two active compounds were isolated from the methanolic extract of P. igniarius through solvent partitioning and Sephadex LH-20 column chromatography. The active compounds were identified as phelligridins E and G on proton nuclear magnetic resonance (¹H NMR) and electrospray ionization mass measurements. These compounds inhibited neuraminidases from recombinant rvH1N1, H3N2, and H5N1 influenza viruses, with ICâ‚…â‚€ values in the range of 0.7~8.1 µM.

Keyword

Neuraminidase inhibitor; Phelligridin E; Phelligridin G; Phellinus igniarius

MeSH Terms

Chromatography
Fruit*
Fungi
Magnetic Resonance Spectroscopy
Methanol
Neuraminidase*
Orthomyxoviridae
Protons
Methanol
Neuraminidase
Protons
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