旋转手套组织之间的炎症交叉声会随着年龄和性别而改变
bioRxiv : the preprint server for biology
|July 15, 2025
概括
老龄化和性别影响肩部组织的沟通. 年长的男性和女性表现出改变的炎症反应,老龄化破坏了关键的肌交叉通话,取代了性别差异.
科学领域:
- 肌肉骨生物学 肌肉骨生物学
- 组织工程是组织工程.
- 衰老的研究研究.
背景情况:
- 肌肉骨疾病,特别是肩膀问题,在老年人群中很普遍.
- 关节退化的发起因素不太清楚,仅限于组织间沟通.
- 在肩关节内的局部相互作用,特别是骨肌肉 (BTM) 交叉,仍未得到充分研究.
研究的目的:
- 为了研究与年龄和性别相关的差异,骨肌肉 (BTM) 交叉在肩膀.
- 测试BTM相互作用因年龄和性别而异的假设,老年/女性组织表现出减少的分泌活性.
主要方法:
- 利用了从年轻和年长的C57BL/6J小鼠中取出的整个肩部组织的新型体外单一培养和共同培养.
- 评估了整个骨,肌和肌肉组织的炎症反应,包括细胞因子分泌.
- 根据年龄和性别,检查了基于组织相互作用的差异.
主要成果:
- 在细胞因子分泌中表现出显著的年龄和性别差异,老年小鼠表现出改变的炎症特征.
- 在单种植物中观察到增加的促炎性细胞因子分泌,随着年龄的增长而放大.
- 发现由分泌因素介导的骨交叉声,而肌肉沟通需要身体接触;衰老破坏了这种交叉声,减少了性别差异.
结论:
- 肌在调解肩膀组织间的沟通中起着至关重要的作用,而这种沟通因衰老而受到破坏.
- 与年龄相关的组织特异性信号的衰退似乎在沟通模式中取代了基于性别的区别.
- 研究结果强调了年龄和性别在肌肉骨健康和退化中的复杂相互作用.
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