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纤维素-5/DANCE对于体内弹性生成至关重要
Tomoyuki Nakamura1, Pilar Ruiz Lozano, Yasuhiro Ikeda
1UCSD-Salk Program in Molecular Medicine and the UCSD Institute of Molecular Medicine, University of California, San Diego, La Jolla, California 92093, USA.
Nature
|January 24, 2002
概括
纤维素-5对于组织弹性纤维至关重要,对于动脉,肺和皮肤的功能至关重要. 缺乏纤维素-5的小鼠表现出无组织的弹性纤维,导致组织损伤和疾病.
科学领域:
- 生物化学 生物化学
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
背景情况:
- 弹性纤维对于动脉,肺和皮肤等器官的组织弹性至关重要.
- 由微纤维和弹性纤维组成的弹性纤维的组装和发展尚未完全理解.
研究的目的:
- 研究纤维素-5 (DANCE) 在弹性纤维组织中的作用.
- 确定纤维素-5在弹性组织的发展和维护中的功能.
主要方法:
- 在小鼠中准基因以创建纤维素-5淘汰 (纤维素-5-/-) 模型.
- 在体外研究评估纤维素-5与弹性纤维和整体素的相互作用.
- 来自纤维素-5-/-小鼠的组织组织组织学和功能分析.
主要成果:
- 纤维素-5淘汰赛小鼠在整个身体中表现出严重混乱的弹性纤维.
- 这些小鼠表现出大动脉异常,肺气和皮,表明弹性纤维发育有缺陷.
- 纤维素-5与弹性纤维直接相互作用,并与整合素alphavbeta3,alphavbeta5和alpha9beta1.1结合.
结论:
- 纤维素-5是弹性纤维组织和稳定性的重要决定因素.
- 它可能通过通过整合素相互作用将弹性纤维固定在细胞上来起作用.
- 纤维素-5的缺陷导致弹性组织结构和功能受损,导致各种病理.
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