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乙二烯生物材料通过强制形成恒常态条件来重编程集体细胞迁移和细胞循环
Kevin Suh1, Youn Kyoung Cho1, Isaac B Breinyn2
1Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA.
Cell reports
|February 15, 2024
概括
使用E-cadherin进行细胞-细胞粘附的新生物材料阻止了集体细胞迁移并减缓了细胞循环. 这与传统的矩阵蛋白质形成鲜明对比,为组织集成和细胞行为编程提供了洞察力.
科学领域:
- 生物材料科学 生物材料科学
- 细胞生物学 细胞生物学
- 组织工程是组织工程.
背景情况:
- 细胞通过细胞-细胞外基质 (ECM) 或细胞-细胞相互作用粘附.
- 传统的生物材料主要模仿ECM以实现基于整合素的粘附.
- 基于卡德林的生物材料为细胞编程和组织集成提供了新的策略.
研究的目的:
- 研究卡德林基质对表皮组织中的集体细胞迁移和细胞循环的影响.
- 为了比较表现出ECM蛋白和E-cadherin的生物材料上的细胞行为.
主要方法:
- 开发"Janus"接口生物材料,其中一半是矩阵蛋白,另一半是E-cadherin.
- 在Janus接口上培养单个上皮细胞板.
- 观察和量化细胞迁移动态和细胞周期进展.
主要成果:
- 表皮组织在矩阵蛋白质方面表现出正常的集体动态.
- 细胞行为的突然转变发生在Janus边界到E-cadherin侧.
- 位于E-cadherin表面的细胞表现出停滞的迁移和显著减缓的细胞循环,G0/G1阶段长度翻了一番.
- 在E-cadherin表面上观察到远程机械协调的破坏.
- 在E-cadherin表面上缺乏整合素焦点粘附,与细胞周期动态变化相关.
结论:
- 与传统的ECM基质相比,基于E-cadherin的生物材料从根本上改变了集体细胞迁移和细胞周期进展.
- 这些发现突显了细胞-细胞与细胞-矩阵粘附在调节上皮组织动态中的不同作用.
- 模仿卡德林的材料提供了一种独特的方法来控制工程组织中的细胞行为.
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