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针对塞尔托利细胞中的失调的菌/自动溶解体,以改善晚期发生的阴性双胞胎症
Zhiwen Deng1,2, Liangyu Zhao1,3,4, Sha Li1,2
1School of Life Science and Technology, ShanghaiTech University, Shanghai, China.
Nature aging
|April 22, 2024
概括
老化丸中的塞尔托利细胞 (SCs) 显示出 lysosomal 功能受损,导致代谢功能障碍和阴性腺症. 恢复SCs中的溶解体活性为与年龄相关的丸衰退提供了潜在的治疗方法.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 衰老研究研究 衰老研究
背景情况:
- 与年龄相关的丸功能障碍,包括晚期发生的阴性腺体缺陷症 (LOH),会影响男性的健康.
- 驱动LOH和丸衰老的精确机制尚未完全理解.
研究的目的:
- 研究塞尔托利细胞 (SCs) 在与年龄相关的丸功能障碍中的作用.
- 确定LOH背后的分子机制,并探索治疗点.
主要方法:
- 来自LOH患者的人类丸的单细胞RNA测序.
- 溶酶体酸度探测和SCs的代谢分析.
- 在小鼠中高脂肪饮食诱导的LOH模型和使用TRPML1agonist的治疗干预.
主要成果:
- 陈旧的SCs表现出受损的溶酶体功能,受损的自和细胞,称为/自溶酶体放松调节的SCs.
- 这些SCs积累了像胆固醇这样的代谢物,并显示炎症基因表达的增加.
- 高脂肪饮食在小鼠中诱导了类似的SC功能障碍,重现了LOH特征.
- 在小鼠中,TRPML1激动剂的使用恢复了 lysosomal 功能,并使丸激素水平正常化.
结论:
- 塞尔托利细胞是丸衰老和代谢平衡的关键调节者.
- 在SCs中的功能障碍溶解体对LOH有显著的贡献.
- 针对溶解体功能,特别是通过TRPML1,为LOH提供了一个有前途的治疗策略.
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