Aggrecanases and cartilage matrix degradation.

Aggrecanases and cartilage matrix degradation.
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DOI:
10.1186/ar630
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发表时间:
2003
影响因子:
4.9
通讯作者:
Kashiwagi M
Kashiwagi M
中科院分区:
医学2区
文献类型:
--
作者:
Nagase H;Kashiwagi M

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软骨细胞外基质大分子的丢失会导致关节功能的严重损害。在类风湿性关节炎和骨性关节炎软骨破坏的早期阶段,被称为聚集素核心蛋白的Glu373-Ala374键断裂的金属蛋白酶在软骨破坏中起着关键作用。ADAMTS蛋白水解酶家族中的3个成员,ADAMTS-1、ADAMTS-4和ADAMTS-5,已被鉴定为聚集聚糖酶。基质金属蛋白酶,也存在于关节炎关节中,裂解集束,但位于与集束酶不同的位置(即Asn341-Phe342)。本文综述了这三种已知的聚集聚糖酶的酶学性质,它们的活性调节,以及它们在关节炎发生发展过程中与基质金属蛋白酶有关的软骨基质破坏中的作用。
The loss of extracellular matrix macromolecules from the cartilage results in serious impairment of joint function. Metalloproteinases called 'aggrecanases' that cleave the Glu373–Ala374 bond of the aggrecan core protein play a key role in the early stages of cartilage destruction in rheumatoid arthritis and in osteoarthritis. Three members of the ADAMTS family of proteinases, ADAMTS-1, ADAMTS-4 and ADAMTS-5, have been identified as aggrecanases. Matrix metalloproteinases, which are also found in arthritic joints, cleave aggrecans, but at a distinct site from the aggrecanases (i.e. Asn341–Phe342). The present review discuss the enzymatic properties of the three known aggrecanases, the regulation of their activities, and their role in cartilage matrix breakdown during the development of arthritis in relation to the action of matrix metalloproteinases.
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发表时间: 1999-08-13
影响因子: 4.8
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