Anti-inflammatory activity of mushroom-derived hispidin through blocking of NF-κB activation.

Hong Jun Shao, Jin Boo Jeong, Kui-Jin Kim, Seong-Ho Lee

Index: J. Sci. Food Agric. 95 , 2482-6, (2015)

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Abstract

Hispidin, a polyphenol compound mainly derived from the valuable medicinal mushroom Phellinus species, has been found to possess distinct biological effects. However, the anti-inflammatory potential of hispidin still remains uncharacterized.In this study, the effects of hispidin on activation of nuclear factor kappa B (NF-κB) and the subsequent production of inducible nitric oxide synthase (iNOS) were determined in the lipopolysaccharide (LPS)-induced macrophage RAW 264.7 cells. Our data indicated that hispidin inhibits transcriptional activity of NF-κB in a dose-dependent manner. Hispidin also attenuated LPS-induced NF-κB nuclear translocation and associated inhibitor of kappa B (IκB-α) degradation. Furthermore, hispidin deceased iNOS protein expression and the generation of reactive oxygen species (ROS) in the LPS-induced cells, but did not affect phosphorylation of mitogen-activated protein kinases.These findings suggest that hispidin exhibits anti-inflammatory activity through suppressing ROS mediated NF-κB pathway in mouse macrophage cells.© 2014 Society of Chemical Industry.