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上腺素通过受体诱导塞尔托利细胞铁死 脱敏 引起与压力相关的男性生殖功能障碍
Lingyu Zhang1, Shanfeng Gao1, Xiaofan Xiong2
1Department of Cell Biology and Genetics, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, P. R. China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|October 6, 2025
概括
心理压力通过诱导塞尔托利细胞通过北上腺素 (NE) 诱导ferroptosis损害男性生育能力. 使用普拉诺洛尔阻断β-上腺素受体 (β-ARs) 可以防止这种损伤,改善精子生产.
科学领域:
- 生殖生物学 生殖生物学
- 分子内分泌学分子内分泌学
- 细胞生理学 细胞生理学
背景情况:
- 心理压力会对男性生殖健康产生负面影响.
- 通过交感神经系统激活而释放的诺尔上腺素 (NE) 涉及与压力相关的生殖功能障碍.
- 关联压力,NE和男性不孕症的特定分子途径尚未完全理解.
研究的目的:
- 阐明心理压力损害男性生殖的分子机制.
- 调查北上腺素 (NE) 和塞尔托利细胞铁死在压力诱导的男性生殖损伤中的作用.
- 评估调节β-上腺素受体 (β-AR) 信号传导的治疗潜力.
主要方法:
- 研究了心理压力对塞尔托利细胞和精子生成 in vivo 和 in vitro 的影响.
- 利用醇阻止β-ARs,并评估其对压力诱导损伤的影响.
- 采用选择性β1-和β2-AR抗剂来研究NE诱导的铁亡.
- 分析了涉及NE,β-arrestin1,Gi蛋白,CREB1和GPX4.4的分子通路.
主要成果:
- 心理压力会诱导塞尔托利细胞铁,其特征是铁过载和脂质过氧化.
- NE调解了压力诱导的塞尔托利细胞铁亡.
- 甲醇治疗缓解了压力诱导的生殖损伤,并促进了精子生成.
- NE激活β-arrestin1,导致β-AR脱敏,Gi蛋白刺激,并抑制GPX4转录,最终促进铁亡.
结论:
- 上腺素诱导的β-上腺素受体脱敏化是驱动在心理压力下塞尔托利细胞铁亡的一个关键机制.
- 调节β-AR信号代表了与压力相关的男性生殖功能障碍的潜在治疗策略.
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