代谢调节增强了人类bmMSC治疗多克索鲁比诱导的心力衰竭
Virginie Jacques1,2,3, Sabrina Benaouadi1,2, Jean-Gerard Descamps4
1Université Paul Sabatier, 31062 Toulouse, France.
Stem cells (Dayton, Ohio)
|August 12, 2024
概括
根据骨髓中介质 stromal 细胞 (bmMSCs) 的糖溶性代谢进行选择,可以改善它们的移植和生存. 这些代谢选择的bmMSC有效治疗小鼠心力衰竭,为心血管再生疗法提供了一个有前途的战略.
科学领域:
- 再生医学是一种再生医学.
- 心血管生物学 心血管生物学
- 细胞代谢 细胞代谢
背景情况:
- 骨髓中介质 stromal 细胞 (bmMSCs) 显示出治疗心力衰竭的前景,但患有不良移植和生存.
- 优化bmMSC移植和生存对于提高其治疗心血管疾病的疗效至关重要.
研究的目的:
- 调查代谢状态,特别是糖溶解在增强心力衰竭治疗bmMSC功能中的作用.
- 在心力衰竭的临床前模型中探索代谢分类bmMSCs的潜力.
- 阐明连接bmMSC代谢和治疗功能的表观遗传机制.
主要方法:
- 功能性检测,表观遗传分析和基因表达概况被用来表征bmMSCs,按线粒体膜潜力进行排序.
- 实验室内培系统和体内多克索鲁比诱导的心力衰竭小鼠模型被使用.
- 用氨酸特异性去甲基酶1 (LSD1) 的向来调节bmMSC代谢.
主要成果:
- 选择用于糖溶性代谢的bmMSCs表现出增强的增殖和抗氧化应激的抵抗力,从而改善了植入.
- 在心力衰竭模型中,用糖溶性bmMSCs进行治疗显著改善左心室喷射率,并减少心脏纤维化.
- 对bmMSCs的代谢重编程与表观遗传组织蛋白修饰有关,包括lysine甲基化,由LSD1.1调节.
结论:
- bmMSCs的代谢特性,特别是它们对糖解的依赖,是它们在心力衰竭中治疗功效的关键决定因素.
- 代谢分类和向LSD1等表观遗传修饰剂代表了增强基于bmMSC的心血管再生疗法的新策略.
- 这项研究为通过优化细胞代谢开发更有效的bmMSC治疗心力衰竭提供了基础.
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