Asperlin From the Marine-Derived Fungus Aspergillus sp SF-5044 Exerts Anti-inflammatory Effects Through Heme Oxygenase-1 Expression in Murine Macrophages

作者：Lee Dong Sung; Jeong Gil Saeng; Li Bin; Lee Sang Un; Oh Hyuncheol; Kim Youn Chul^*

来源：Journal of Pharmacological Sciences, 2011, 116(3): 283-295.

DOI：10.1254/jphs.10219FP

• asperlin
• heme oxygenase (HO)-1
• anti-inflammatory effect
• RAW264.7 macrophage
• murine peritoneal macrophage

Asperlin is a fungal metabolite isolated from Aspergillus sp. SF-5044. In the present study, we isolated asperlin from the marine-derived fungus Aspergillus sp. SF-5044 and demonstrated that it inhibited inducible nitric oxide synthase (iNOS) expression, reduced iNOS-derived NO, suppressed cyclooxygenase (COX)-2 expression, and reduced COX-derived prostaglandin (PG) E(2) production in lipopolysaccharide (LPS)-stimulated RAW264.7 and murine peritoneal macrophages. Similarly, asperlin reduced the production of tumor necrosis factor (TNF)-alpha and interleukin (IL)-1 beta. In addition, asperlin inhibited the phosphorylation and degradation of I kappa B-alpha, as well as the nuclear translocation of p65 caused by the stimulation of LPS in RAW264.7 macrophages. Furthermore, asperlin induced heme oxygenase (HO)-1 expression through nuclear translocation of nuclear factor E2 related factor 2 and increased HO activity in RAW264.7 macrophages. The effects of asperlin on the LPS-induced expression of iNOS and COX-2 and production of NO, PGE(2), TNF-alpha, and IL-1 beta were partially reversed by a HO-1 inhibitor, tin protoporphyrin. These findings suggest that asperlin-induced HO-1 expression plays a role in the anti-inflammatory effects of asperlin in macrophages.

• 出版日期2011-7