细胞激素是对年龄和伤害有反应的分子,调节骨肌形成
Farnoush Kabiri1, Zeynab Azimychetabi1, Dev Seneviratne1
1Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON K9L 0G2, Canada.
International journal of molecular sciences
|October 29, 2025
概括
细胞因子 (CTK),植物信号分子,存在于小鼠肌肉中,对损伤和衰老做出反应. 它们对肌肉细胞的影响取决于结构,影响增殖和分化,对再生医学有意义.
科学领域:
- 肌肉生物学 肌肉生物学
- 植物信号分子 植物信号分子
- 再生医学是一种再生医学.
背景情况:
- 肌肉发育对于肌肉发育和修复至关重要.
- 在培养的肌肉细胞中发现了植物性信号分子细胞因子 (CTK).
- 异乙丁 (iP) 是肌肉培养中最丰富的CTK.
研究的目的:
- 在体内检测CTK在再生肌肉组织中的存在.
- 描述IP和异乙氨酸 (iPR) 对肌肉细胞增殖和分化的影响.
- 为了比较CTK效应与腺素,腺素,激素,和激素 рибоoside.
主要方法:
- 在小鼠中使用心脏毒素诱导肌肉损伤和修复.
- 在受伤后的3天和7天收集了胃肌肉样本.
- 使用超高性能液态染色体协同质谱法 (UHPLC-(ESI+) -HRMS/MS) 分析了CTK的存在.
主要成果:
- 在再生肌肉中检测到四种CTK (N6-基氨酸,二西-9-N-葡萄糖化物,iPR和2-甲基-异乙氨酸).
- 2-甲基-异乙氨酸水平受到老化和受伤的影响,仅在年轻小鼠中增加.
- iPR和动氨酸核糖酸降低了肌细胞增殖和损害了肌管形成,而 iP 双相增殖.
结论:
- CTKs存在于肌肉组织中,对受伤和衰老有反应.
- 肌肉细胞中CTKs的生物活性受到结构特征的调节,例如 рибоoside结合和侧链.
- 研究结果提供了关于CTK在肌肉新陈代谢和分化中的作用的见解,建议在再生医学中潜在的治疗应用.
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