Neuraminidase Inhibitors from the Fermentation Broth of Phellinus linteus - PubMed (original) (raw)

Neuraminidase Inhibitors from the Fermentation Broth of Phellinus linteus

Byung Soon Hwang et al. Mycobiology. 2014 Jun.

Abstract

During a search for neuraminidase inhibitors derived from medicinal fungi, we found that the fermentation broth of Phellinus linteus exhibited potent neuraminidase inhibitory activity. Through bioassay-guided fractionation, two active compounds were purified from the ethyl acetate-soluble portion of the fermentation broth of P. linteus. These structures were identified as inotilone (1) and 4-(3,4-dihydroxyphenyl)-3-buten-2-one (2) by spectroscopic methods. Compounds 1 and 2 inhibited H1N1 neuraminidase activity with IC50 values of 29.1 and 125.6 µM, respectively, in a dose-dependent manner. They also exhibited an antiviral effect in a viral cytopathic effect reduction assay using MDCK cells. These results suggest that compounds 1 and 2 from the culture broth of P. linteus would be good candidates for the prevention and therapeutic strategies towards viral infections.

Keywords: 4-(3,4-Dihydroxyphenyl)-3-buten-2-one; Anti-influenza agent; Inotilone; Neuraminidase inhibitor; Phellinus linteus.

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Figures

Fig. 1

Fig. 1

Structures of compounds 1 (inotilone) and 2 (4-(3,4-dihydroxyphenyl)-3-buten-2-one).

Fig. 2

Fig. 2

Effects of compounds 1 and 2 on influenza A/WS/33 virus-induced cytopathic effect.

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References

    1. Palese P, Shaw ML. Orthomyxoviridae: the viruses and their replication. In: Knipe DM, Howley PM, editors. Fields virology. 5th ed. Philadelphia: Lippincott Williams & Wilkins; 2007. pp. 1647–1689.
    1. Zhang J, Yu K, Zhu W, Jiang H. Neuraminidase pharmacophore model derived from diverse classes of inhibitors. Bioorg Med Chem Lett. 2006;16:3009–3014. - PubMed
    1. Moscona A. Neuraminidase inhibitors for influenza. N Engl J Med. 2005;353:1363–1373. - PubMed
    1. Nicholson KG, Wood JM, Zambon M. Influenza. Lancet. 2003;362:1733–1745. - PMC - PubMed
    1. Deng K, Zhang Y, Xie L, Peng W, Gan B, Ren Z. Simultaneous determination of five fatty acids in Phellinus sp. by high-performance liquid chromatography with photodiode-array detection. J Med Plant Res. 2011;5:2816–2821.

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