通过Syntenin-1的代谢重编程指导RA FLS和内皮细胞介导的炎症和血管生成
Anja Meyer1,2, Stephanie R Zack1,2, Wes Nijim2
1Jesse Brown VA Medical Center, Chicago, IL, USA.
Cellular & molecular immunology
|December 17, 2023
概括
一种新型蛋白质,Syntenin-1,通过改变细胞代谢和促进侵入,驱动类风湿性关节炎 (RA) 炎症. 针对Syntenin-1及其受体Synddecan-1 (SDC-1),为RA提供了一个新的治疗途径.
科学领域:
- 类风湿病学 类风湿病学
- 细胞生物学 细胞生物学
- 分子医学是分子医学.
背景情况:
- 类风湿性关节炎 (RA) 涉及突组织炎症.
- 新型蛋白质如Syntenin-1在RA病变中的作用尚未完全理解.
- 辛德肯-1 (SDC-1) 是一种已知的受体,参与细胞过程.
研究的目的:
- 调查RA中Syntenin-1及其受体SDC-1的功能.
- 阐明Syntenin-1影响RA突发性关节细胞的分子机制.
- 在Syntenin-1/SDC-1通路内探索潜在的治疗点.
主要方法:
- 在RA突组织中对Syntenin-1和SDC-1进行局部化研究.
- 对基因转录 (IRF1/5/7/9,IL-1β,IL-6,CCL2) 和信号通路 (HIF1α,mTOR) 的分析.
- 代谢概况 (糖解,氧化酸化) 和线粒体动态的评估.
- 通过VEGFR1/2和Notch1网络调查交叉通话.
- 在Syntenin-1关节炎小鼠和SDC-1缺乏动物的研究.
主要成果:
- 合成蛋白-1和SDC-1在RA的突内皮细胞和纤维细胞样突细胞 (FLS) 中共同局部化.
- 合成蛋白-1通过SDC-1,HIF1α和mTOR激活来调节炎症媒介,促进细胞入侵.
- 合成蛋白-1 重编程内皮细胞代谢,使其向升级的糖解和RA FLS转向强大的线粒体ATP生产.
- 在VEGFR1/2和Notch1中介于Syntenin-1-rewired细胞和FLS之间的交叉.
- 针对SDC-1,mTOR和HIF1α,可以否定Syntenin-1的炎症表型.
结论:
- 辛宁-1通过SDC-1,HIF1α和mTOR信号加剧了RA炎症和侵袭.
- 在受Syntenin-1影响的内皮细胞和RA FLS中发生明显的代谢重编程.
- 在RA中,VEGFR1/2和Notch1通路对于细胞间通信至关重要.
- 目前的RA疗法没有针对Syntenin-1/SDC-1;这个途径提供了一个新的治疗策略.
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