(+)-Catechin protects dermal fibroblasts against oxidative stress-induced apoptosis

Tomoko Tanigawa, Shigeyuki Kanazawa, Ryoko Ichibori, Takashi Fujiwara, Takuya Magome, Kenta Shingaki, Shingo Miyata, Yuki Hata, Koichi Tomita, Ken Matsuda, Tateki Kubo, Masaya Tohyama, Kenji Yano, Ko Hosokawa

    研究成果: Article査読

    31 被引用数 (Scopus)

    抄録

    Background: Oxidative stress has been suggested as a mechanism underlying skin aging, as it triggers apoptosis in various cell types, including fibroblasts, which play important roles in the preservation of healthy, youthful skin. Catechins, which are antioxidants contained in green tea, exert various actions such as anti-inflammatory, anti-bacterial, and anti-cancer actions. In this study, we investigated the effect of (+)-catechin on apoptosis induced by oxidative stress in fibroblasts. Methods: Fibroblasts (NIH3T3) under oxidative stress induced by hydrogen peroxide (0.1 mM) were treated with either vehicle or (+)-catechin (0-100 μM). The effect of (+)-catechin on cell viability, apoptosis, phosphorylation of c-Jun terminal kinases (JNK) and p38, and activation of caspase-3 in fibroblasts under oxidative stress were evaluated. Results: Hydrogen peroxide induced apoptotic cell death in fibroblasts, accompanied by induction of phosphorylation of JNK and p38 and activation of caspase-3. Pretreatment of the fibroblasts with (+)-catechin inhibited hydrogen peroxide-induced apoptosis and reduced phosphorylation of JNK and p38 and activation of caspase-3.Conclusion: (+)-Catechin protects against oxidative stress-induced cell death in fibroblasts, possibly by inhibiting phosphorylation of p38 and JNK. These results suggest that (+)-catechin has potential as a therapeutic agent for the prevention of skin aging.

    本文言語English
    論文番号133
    ジャーナルBMC Complementary and Alternative Medicine
    14
    DOI
    出版ステータスPublished - 2014 4 8

    ASJC Scopus subject areas

    • 補完代替医療

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