伪3D拓对齐调节了光滑肌肉细胞的机械传导和成熟
Yeji Lee1, Jihyeon Song1, Ulziituya Batjargal2
1Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 790-784, Republic of Korea.
Advanced healthcare materials
|October 4, 2024
概括
拓线索指导光滑肌肉细胞 (SMC) 通过yes关联蛋白1 (YAP) 机制传导成熟,促进收缩型表型. 骨肌细胞表现出明显的机械感知机制,突出显示肌肉类型依赖的反应.
科学领域:
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
- 组织工程是组织工程.
背景情况:
- 平滑肌细胞 (SMC) 在组织工程中至关重要,它们对来自细胞外微环境 (ECM) 的机械刺激做出反应.
- 机械传导,细胞如何感知和响应机械线索,影响SMC功能和成熟,但YAP在表型转变中的作用仍在争论中.
研究的目的:
- 研究拓线索对SMC机械传导和成熟的影响.
- 探索YAP在调节中所扮演的角色,即中小企业从合成转向收缩的表型转变.
- 为了比较SMC和骨肌细胞之间的机械感知和成熟机制.
主要方法:
- 使用激光切割雕刻生成模拟原生肌肉组织的伪3D拓对齐.
- 在交叉模式的基板上培养SMC,以分析拓线索介导的机械传导和标记表达.
- 研究了细胞-细胞相互作用和YAP参与SMC机械感知.
主要成果:
- YAP参与了SMC培养在具有细胞相互作用的图案基板上的机械传导.
- 具有YAP连接机械感应的SMC表现出卡尔波宁表达的增加,表明向收缩型表型的转变.
- 与SMC相比,骨肌细胞表现出不同的机械感知和成熟机制,显示肌肉类型依赖于拓线索的反应.
结论:
- 拓线索调节SMC机械传导和成熟,其中YAP信号发挥着关键作用.
- 通过YAP介导的机械感知促进了SMC中的收缩性表型.
- 在感知拓线索和启动成熟信号布方面存在肌肉类型特异性差异.
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