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The A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) family is gradually being recognized as an important family of mediators that, along with the matrix metalloproteinases (MMPs), control the degradation process in osteoarthritis (OA). The objective of this study was to uncover the detailed alterations of ADAMTS1, ADAMTS2, and ADAMTS5 in the knee joint of OA mice. The OA model was established by anterior cruciate ligament transection (ACLT) on the knee joints of C57BL/6 J mice. The mice showed representative phenotypes of ACLT-induced OA, including obvious deterioration of the cartilage, reductions in the collagen and proteoglycan components in the cartilage matrix of OA mice, and increased inflammation and osteoclast activity. By qPCR, the gene expression levels of Adamts1, -2, and -5 were the top-ranked among Adamts1-5 in cartilage/chondrocytes, osteogenic tissue/osteoblasts, and cortical bone/osteocytes. Moreover, the protein expression levels of ADAMTS1, -2, and -5 were all increased in articular cartilage, the growth plate, and subchondral bone of the knee joint. The results suggest the important roles of ADAMTS1, -2, and -5 in OA disease, which will be helpful in further research on degenerative changes in OA.


Luling Wang, Caixia Pi, Jianxun Sun, Yujia Cui, Linyi Cai, Yuanchen Lan, Jinning Gu, Linfeng Liu, Geru Zhang, Lianyang Guo, Zhaowei Zhang, Qiang Guo, Liwei Zheng, Jing Xie, Demao Zhang, Xuedong Zhou. The alteration of A disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS) in the knee joints of osteoarthritis mice. Journal of histotechnology. 2021 Jun;44(2):99-110

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PMID: 33480322

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