Abstract Title:

Coumestrol Counteracts Interleukin-1β-Induced Catabolic Effects by Suppressing Inflammation in Primary Rat Chondrocytes.

Abstract Source:

Inflammation. 2017 Feb ;40(1):79-91. PMID: 27709316

Abstract Author(s):

Jae-Seek You, In-A Cho, Kyeong-Rok Kang, Ji-Su Oh, Sang-Joun Yu, Gyeong-Je Lee, Yo-Seob Seo, Su-Gwan Kim, Chun Sung Kim, Do Kyung Kim, Hee-Jeong Im, Jae-Sung Kim

Article Affiliation:

Jae-Seek You


In the present study, we investigated the anti-catabolic effects of coumestrol, a phytoestrogen derived from herbal plants, against interleukin-1β-induced cartilage degeneration in primary rat chondrocytes and articular cartilage. Coumestrol did not affect the viability of human normal oral keratinocytes and primary rat chondrocytes treated for 24 h and 21 days, respectively. Although coumestrol did not significantly increase the proteoglycan contents in long-term culture, it abolished the interleukin-1β-induced loss of proteoglycans in primary rat chondrocytes and knee articular cartilage. Furthermore, coumestrol suppressed the expression of matrix-degrading enzymes such as matrix metalloproteinase-13, -3, and -1 in primary rat chondrocytes stimulated with interleukin-1β. Moreover, the expression of catabolic factors such as nitric oxide synthase, cyclooxygenase-2, prostaglandin E, and inflammatory cytokines in interleukin-1β-stimulated primary rat chondrocytes was suppressed by coumestrol. In summary, these results indicate that coumestrol counteracts the catabolic effects induced by interleukin-1β through the suppression of inflammation. Therefore, based on its biological activity and safety profile, coumestrol could be used as a potential anti-catabolic biomaterial for osteoarthritis.

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