联合ADAMTS10和ADAMTS17无活化会加剧骨缩短,并影响细胞外基质形成
Nandaraj Taye1, Stylianos Z Karoulias1, Zerina Balic1
1Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopedics, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
bioRxiv : the preprint server for biology
|February 3, 2025
概括
威尔-马切萨尼综合征 (WMS) 涉及矮身和骨缺陷. ADAMTS10和ADAMTS17蛋白酶对于骨生长至关重要,调节状细胞功能和细胞外基质组装.
科学领域:
- 生物化学 生物化学
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 威尔-马切萨尼综合征 (WMS) 是一种影响连接组织的遗传疾病,其特点是身高矮和骨异常.
- 在ADAMTS10,ADAMTS17或LTBP2中发生的突变会导致衰退性WMS,而FBN1突变会导致主导性WMS.
- 这些细胞外矩阵 (ECM) 蛋白质的参与表明,共同的途径调节了状细胞的功能和生长板的发育.
研究的目的:
- 研究ADAMTS蛋白酶ADAMTS10和ADAMTS17在生长板功能和ECM形成中的作用.
- 阐明这些蛋白酶影响骨发育的分子机制.
主要方法:
- 产生和分析Adamts10;Adamts17双淘汰赛 (DKO) 的小鼠.
- 评估骨表型,包括骨长度和生长板形态.
- 使用N-终端学和酵母两混合选来识别ADAMTS17基质.
- 对缺陷小鼠初级皮肤纤维细胞中ECM沉积的分析.
主要成果:
- 亚当斯10;亚当斯17 DKO小鼠表现出显著的产后死亡率和严重的骨缩短,与较窄的生长板缩区域.
- ADAMTS17与ECM蛋白质的分泌和组合有关,纤维内素沉积受损,纤维素-1在缺陷纤维细胞中细胞内积累.
- 虽然纤维素和原VI被确定为潜在的ADAMTS17基质,但直接蛋白解并未得到证实.
结论:
- ADAMTS10和ADAMTS17是骨生长的重要调节剂,影响状细胞缩和循环.
- ADAMTS17在ECM蛋白质分泌和周细胞基质组合中起着至关重要的作用.
- ADAMTS10可能会影响后期阶段的ECM形成,可能会影响纤维素异型沉积.
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