通过通过mTORC2-ACACA通路诱导CSMC衰老,IL-17A会加剧体纤维化和神经性勃起功能障碍
Wende Yang1, Jiafeng Fang1, Jiancheng Zhai1,2
1Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Tianhe Road 600, Guangzhou, 510630, China.
BMC medicine
|September 10, 2024
概括
干白素-17A (IL-17A) 通过激活mTORC2-ACACA通路来驱动神经性勃起功能障碍中的洞穴体纤维化 (CCF). 阻断IL-17A可以改善勃起功能,并减少CCF,提供一个新的治疗点.
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:
- 神经性勃起功能障碍 (ED) 涉及神经损伤和渐进性体纤维化 (CCF).
- 干白素-17A (IL-17A) 在组织重塑和CCF在脱皮过程中的作用尚未完全理解.
研究的目的:
- 调查IL-17A在CCF中与神经性ED相关的作用和机制.
- 探索IL-17A作为CCF和勃起功能康复的潜在治疗点.
主要方法:
- 基因表达分析 (PCR阵列) 在神经性ED大鼠中确定了差异表达的基因.
- 分析了IL-17A表达,细胞和体洞穴质光滑肌细胞 (CSMCs) 的表型调节.
- 使用代谢学和siRNA阐明了机制;使用IL-17A抗剂和ABT-263体内测试了治疗效果.
主要成果:
- 在模型大鼠的洞穴体中,IL-17A显著上调,与CCF相关.
- 通过激活mTORC2-ACACA通路,IL-17A促进了CSMC衰老和纤维化,增强了脂质合成和衰老.
- 在体内阻断IL-17A衰老信号改善了勃起功能,并减少了CCF.
结论:
- 通过激活mTORC2-ACACA通路,IL-17A在去神经化的CCF中发挥着关键作用.
- 在神经性勃起障碍中,IL-17A是治疗CCF和恢复勃起功能的有前途的治疗标.
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