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Anti-inflammatory effects of hydroxycinnamic acid derivatives
Reiko Nagasaka1, Chatchawan Chotimarkorn, Islam Md Shafiqul
1Department of Food Science & Technology, Tokyo University of Marine Science and Technology, 5-7 Konan 4, Minato, Tokyo, Japan.
Abstract:
NF-kappaB family of transcription factors are involved in numerous cellular processes, including differentiation, proliferation, and inflammation. It was reported that hydroxycinnamic acid derivatives (HADs) are inhibitors of NF-kappaB activation. Rice bran oil contains a lot of phytosteryl ferulates, one of HADs. We have investigated effects of phytosteryl ferulates on NF-kappaB activation in macrophage. Cycloartenyl ferulate (CAF), one of phytosteryl ferulates, significantly reduced lipopolysaccharide (LPS)-induced NO production and mRNA expression of inducible NO synthase and cyclooxygenese-2 but upregulated SOD activity. Electrophoresis mobility shift assay revealed that CAF inhibited DNA-binding of NF-kappaB. CAF and phytosteryl ferulates probably have potentially anti-inflammatory properties.
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