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通过抑制TAZ/KLF6通路,JAM-C可以预防眼部纤维化
Min Chen1, Wanhong Li1, Yuxiang Du2
1State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou 510060, China.
Journal of advanced research
|May 21, 2025
概括
交界粘附分子C (JAM-C) 通过抑制TAZ/KLF6通路来预防眼球纤维化. 增强JAM-C显示了治疗纤维眼疾病和预防失明的治疗潜力.
科学领域:
- 眼科医生 眼科 眼科
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- 眼纤维化导致不可逆转的视力丧失,目前没有有效的药物治疗方法.
- 了解眼纤维化分子机制对于开发新疗法至关重要.
研究的目的:
- 研究结合粘附分子C (JAM-C) 在眼纤维化发展中的作用.
- 探索JAM-C作为纤维化眼病治疗点的潜力.
主要方法:
- 用ELISA测量患者玻璃体幽默中的量化JAM-C水平.
- 使用了JAM-C淘汰赛小鼠和诱导眼球纤维化模型.
- 评估了JAM-C敲除后的RPE细胞中的上皮层-介质细胞过渡 (EMT),增殖和迁移.
- 采用RNA测序,共免疫沉,ChIP-qPCR和光酶试验来阐明机制.
- 在小鼠模型中使用腺相关病毒 (AAV) 介导的JAM-C传递评估治疗潜力.
主要成果:
- 在患有眼纤维化患者中观察到减少的JAM-C表达.
- 在小鼠中,JAM-C 缺陷加剧了纤维化;在RPE细胞中,JAM-C 倒置诱导了EMT.
- JAM-C通过抑制TAZ核定位及其与KLF6的相互作用来抑制眼球纤维化,这是一个关键的EMT诱导体.
- 以AAV为媒介的JAM-C增强在体内有效地缓解了眼球纤维化.
结论:
- 通过抑制TAZ/KLF6通路,JAM-C对眼球纤维化起着保护作用.
- JAM-C代表了治疗眼部纤维化疾病的新型治疗标.
- 这些发现为治疗因纤维化引起的不可逆转失明的治疗策略开辟了新的途径.
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