首页> 美国卫生研究院文献>Cytotechnology >Simulated microgravity inhibits the migration of mesenchymal stem cells by remodeling actin cytoskeleton and increasing cell stiffness
【2h】

Simulated microgravity inhibits the migration of mesenchymal stem cells by remodeling actin cytoskeleton and increasing cell stiffness

机译:模拟微重力通过重塑肌动蛋白细胞骨架并增加细胞硬度来抑制间充质干细胞的迁移

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Exposure to microgravity during space flight affects almost all human physiological systems. Migration, proliferation, and differentiation of stem cells are crucial for tissues repair and regeneration. However, the effect of microgravity on the migration potentials of bone marrow mesenchymal stem cells (BMSCs) is unclear, which are important progenitor and supporting cells. Here, we utilized a clinostat to model simulated microgravity (SMG) and found that SMG obviously inhibited migration of rat BMSCs. We detected significant reorganization of F-actin filaments and increased Young’s modulus of BMSCs after exposure to SMG. Moreover, Y-27632 (a specific inhibitor of ROCK) abrogated the inhibited migration capacity and polymerized F-actin filament of BMSCs under SMG. Interestingly, we found that transferring BMSCs to normal gravity also attenuated the polymerized F-actin filament and Young’s modulus of BMSCs induced by SMG, but could not recover migration capacity of BMSCs inhibited by SMG. Taken together, we propose that SMG inhibits migration of BMSCs through remodeling F-actin and increasing cell stiffness.
机译:太空飞行过程中暴露于微重力会影响几乎所有人体生理系统。干细胞的迁移,增殖和分化对于组织修复和再生至关重要。然而,微重力对骨髓间充质干细胞(BMSCs)迁移潜能的影响尚不清楚,这是重要的祖细胞和支持细胞。在这里,我们使用了一个clinostat来模拟微重力(SMG),发现SMG明显抑制了大鼠BMSCs的迁移。暴露于SMG后,我们检测到F-肌动蛋白丝的显着重组和BMSC的杨氏模量增加。此外,Y-27632(ROCK的特异性抑制剂)消除了SMG抑制的BMSCs迁移能力和F-肌动蛋白丝聚合。有趣的是,我们发现转移BMSCs到正常重力也减弱了SMG诱导的BMSCs聚合的F-肌动蛋白丝和杨氏模量,但不能恢复SMG抑制的BMSCs的迁移能力。两者合计,我们建议SMG通过重塑F-肌动蛋白和增加细胞硬度来抑制BMSCs的迁移。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号