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In vitro covalent binding proteins of zerumbone, a chemopreventive food factor
Kohta Ohnishi1, Kazuhiro Irie, Akira Murakami
1Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University, Japan.
Abstract:
Zerumbone (ZER), a sesquiterpene in Zingiber zerumbet Smith, has been implicated as a promising chemopreventive agent. Here we found that ZER suppressed expression of pro-inflammatory genes (COX-2 and iNOS) and induced detoxification genes (GSTP1 and NQO1) in RAW264.7 macrophages. Using the ZER-bound Sepharose gel, it appeared ZER was covalently bound to proteins, Keap1 and HuR, that play key roles in these molecular mechanisms.
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