人体阴茎体洞穴的单细胞地图揭示了与衰老相关的勃起功能障碍的细胞和功能异质性
Bailing Zhang1,2,3, Xueheng Zhao4,5, Jian Cao6
1State Key Laboratory of Organ Regeneration and Reconstruction, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Frontiers in endocrinology
|November 14, 2025
概括
与衰老相关的勃起功能障碍 (ARED) 涉及到阴茎组织的细胞变化. 这项研究揭示了免疫细胞转移和细胞通信中断导致ARED,提供潜在的治疗点.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 勃起功能障碍 (ED) 的患病率随着年龄的增长而增加,影响患者的健康.
- 与衰老相关的ED (ARED) 显著影响身体和精神健康.
研究的目的:
- 为了研究衰老的阴茎体洞穴体中的细胞和转录组异质性.
- 探索ARED的免疫微环境和病理机制.
主要方法:
- 单细胞RNA测序是在老年ARED患者和年轻健康对照者的阴茎组织上进行的.
- 对比分析确定了细胞类型,子集和分子特征.
主要成果:
- 确定了包括免疫细胞在内的9种主要细胞类型,揭示了光滑肌细胞 (SMC),内皮细胞 (EC) 和免疫细胞的异质性.
- 在ARED中发现了关键细胞子集 (例如C1_RERGL,Macro_CXCL8) 和增强的配体受体相互作用 (例如CXCL2/3/8 - ACKR1).
- 观察到EC和SMC的功能功能障碍,以及增强的促炎性Macro_CXCL8.
结论:
- 轻度ED阶段是阴茎组织中细胞过渡的关键窗口.
- 功能障碍的EC和SMC,加上增加的促炎性巨细胞,有助于ARED的进展.
- 这项研究提供了衰老的阴茎的细胞地图,并对ARED病原体的洞察力,表明了潜在的治疗点.
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