人类介质干细胞的条件介质影响骨质疏松症中干细胞衰老
Kehong Liu1, Kiyoshi Sakai2, Junna Watanabe2
1Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
Biochemical and biophysical research communications
|April 15, 2024
概括
早期通过人间介质干细胞受条件介质 (hMSC-CM) 通过减少细胞衰老来预防骨质疏松症. 这一发现为抗衰老干预和骨质疏松症预防策略提供了潜力.
科学领域:
- 细胞生物学 细胞生物学
- 再生医学是一种再生医学.
- 老年学是一门学科.
背景情况:
- 介质干细胞 (MSC) 和它们的条件介质在治疗骨质疏松症方面表现有前途.
- MSCs影响骨损失的机制,特别是细胞衰老,需要进一步阐明.
- 来自人类介质干细胞 (hMSCs) 的细胞外囊泡在特定模型中表现出抗衰老作用.
研究的目的:
- 为了比较早期和晚期通道hMSCs受条件介质 (hMSCs-CM) 对细胞衰老的影响.
- 评估早期通过hMSCs-CM在预防骨质疏松症进展方面的疗效.
- 研究hMSCs-CM在减轻卵巢切除诱导的骨质疏松症和细胞衰老中的作用.
主要方法:
- 在实验室中比较早期 (P5) 和晚期 (P17) 过渡hMSCs的条件介质.
- 评估细胞衰老标志物和炎症转录程序.
- 在卵巢切除诱导的骨质疏松症小鼠模型中静脉注射早期通道hMSCs-CM.
- 对骨退化,骨髓MSC衰老和衰老相关分泌表型 (SASP) 细胞因子的分析.
主要成果:
- 长期培养的hMSCs表现出功能受损和增强的衰老.
- 早期通过的hMSCs表现出逆转衰老相关变化的能力.
- 在骨质疏松症小鼠模型中,早期通过hMSCs-CM抑制了骨退化.
- 治疗减少了骨髓MSC中的卵巢切除诱导的衰老,并降低了SASP细胞因子的表达.
结论:
- 早期通过的hMSCs-CM有效地通过对抗细胞衰老来预防骨质疏松症的进展.
- hMSCs-CM通过减少骨髓MSCs和相关炎症因素的衰老来缓解骨质疏松症.
- 早期通过的hMSCs-CM对抗衰老疗法和骨质疏松症预防具有显著的翻译潜力.
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