Inhibition of inflammatory nitric oxide production and epidermis damages by saccharomycopsis ferment filtrate

Hsiou Hsin Tsai, Yen Chou Chen, Woan Ruoh Lee, Jun-Hung Hu, Tomohiro Hakozaki, Takashi Yoshii, Shing Chuan Shen

研究成果: 雜誌貢獻文章同行評審

7 引文 斯高帕斯(Scopus)


Background: Yeast extracts have been shown to perform anti-inflammatory and cytoprotective activities. However, the effects of yeast extracts on lipopolysaccharide (LPS)-induced nitric oxide (NO) production and epidermal damages are still unclear. Objective: To investigate the effect of Saccharomycopsis Ferment Filtrate (SFF) on LPS-induced NO production in RAW264.7 macrophages and epidermal damages. Method: RAW264.7 cells are incubated with LPS (25ng/mL) and different concentrations of SFF. The amount of NO production is detected by Griess reaction. Additionally, the expression of inducible nitric oxide synthase (iNOS) and heme oxygenase-1 (HO-1) are detected by Western blotting. Artificial epidermis is also used to mimic the in vivo condition to investigate the protective effects of SFF on LPSor ultraviolet radiation (UVR)-induced damages by histology and electron microscopy. Results: The results show that SFF addition inhibits LPS-induced NO production and iNOS protein expression in a concentration-dependent manner without notablecytotoxicity in RAW264.7 cells, and induction of HO-1 protein expression by SFF was observed. Interestingly, both HO-1 inducers, hemin and CoCl2, significantly attenuated LPS-induced NO production and iNOS protein expression. The addition of CoCl2 potentiated the inhibitory effect of SFF on LPS-induced NO production. It seems that HO-1 protein participates in SFF inhibition of LPS-induced NO production. Furthermore, SFF exhibits significant protective effect on LPS- or UVR-induced damages in the artificial epidermis via histological and electron microscopic observations. Conclusion: This study provided the first evidence to indicate the beneficial effects of SFF in preventing NO production in macrophages and damages in epidermis, respectively. It suggests that SFF possesses potential to be further developed.
頁(從 - 到)249-257
期刊Journal of Dermatological Science
出版狀態已發佈 - 6月 2006

ASJC Scopus subject areas

  • 皮膚科
  • 生物化學
  • 分子生物學


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