脱细胞化细胞衍生的细胞外基质增强了人类大介质干细胞/干细胞的膜功能
Roman Ushakov1, Andrey Ratushnyy2, Ludmila Buravkova2
1Institute of Cytology, Russian Academy of Sciences, 194064 Saint Petersburg, Russia.
International journal of molecular sciences
|February 24, 2024
概括
在脱细胞化外细胞基质 (dECM) 上培养的介质体/干细胞 (MSC) 显著增强了它们的膜因子分泌. 这种dECM预条件增强了MSC在组织再生方面的治疗潜力.
科学领域:
- 生物医学工程 生物医学工程
- 干细胞生物学 干细胞生物学
- 组织工程是组织工程.
背景情况:
- 介酶体 stromal/干细胞 (MSCs) 分泌着对于组织再生至关重要的膜因子.
- 通过预先调节来增强MSC膜功能对于治疗应用至关重要.
- 原生组织微环境,包括细胞外基质 (ECM),影响MSC行为.
研究的目的:
- 研究MSC衍生的脱细胞化ECM (dECM) 作为基质对MSC分泌能力的影响.
- 评估在dECM培养的MSCs对各种细胞类型和过程的功能影响.
- 探索FAK信号在MSC对dECM反应中的作用.
主要方法:
- 在MSC衍生的dECM上培养来自不同来源的MSC,而不是标准塑料.
- 通过使用qPCR或类似技术分析关键膜因子 (例如,FGF-2,HGF,IL-6) 的表达.
- 使用条件介质进行体外功能检测,包括伤愈合,单细胞迁移和毛细血管状管形成.
主要成果:
- 在dECM上的MSC培养显著提高了多种生长因子和细胞因子 (FGF-2,HGF,IL-6,等) 的分泌. ) 的情况.
- 在dECM上MSC的条件介质增强了纤维细胞和角质细胞的伤口愈合,单细胞迁移和内皮细胞管的形成.
- FAK抑制增强了dECM诱导的对膜因子的上调,表明FAK通路参与.
结论:
- 来自MSC的dECM作为一种强大的基质,增强MSCs的膜因子分泌.
- dECM预条件显著提高MSC衍生条件介质的功能再生能力.
- dECM,可能与FAK抑制剂结合,代表了基于MSC的疗法的一种有前途的新型预条件化策略.
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