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Osteoarthritis Research Laboratory

Publication

Publication

대표논문

Nature communications 誌

작성자Osteoarthritis Research Laboratory  조회수66 등록일2019-02-20
그림5.png [250.5 KB]
 2017 Dec 15;8(1):2133. doi: 10.1038/s41467-017-01868-8.

Estrogen-related receptor γ causes osteoarthritis by upregulating extracellular matrix-degrading enzymes.

Abstract

The estrogen-related receptor (ERR) family of orphan nuclear receptor is composed of ERRα, ERRβ, and ERRγ, which are known to regulate various isoform-specific functions under normal and pathophysiological conditions. Here, we investigate the involvement of ERRs in the pathogenesis of osteoarthritis (OA) in mice. Among ERR family members, ERRγ is markedly upregulated in cartilage from human OA patients and various mouse models of OA. Adenovirus-mediated overexpression of ERRγ in mouse knee joint or transgenic expression of ERRγ in cartilage leads to OA. ERRγ overexpression in chondrocytes directly upregulates matrix metalloproteinase (MMP)-3 and MMP13, which are known to play crucial roles in cartilage destruction in OA. In contrast, genetic ablation of Esrrg or shRNA-mediated downregulation of Esrrg in joint tissues abrogates experimental OA in mice. Our results collectively indicate that ERRγ is a novel catabolic regulator of OA pathogenesis.

 

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