在血管内皮细胞中,DRIM调节Src激活并调节血管功能
Jia Tong1,2, Xuefei Dong2, Tracey A Martin2
1Department of Geriatric Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong First Medical University, Jinan, China.
Cell biology international
|December 8, 2024
概括
低调转移蛋白 (DRIM) 是一种在人类血管内皮细胞中发现的核和细胞骨蛋白. 它的淘汰影响细胞生长,迁移和管形成,揭示了在内皮功能中的新角色.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 低调转移蛋白 (DRIM) 最初在恶性上皮细胞中被发现,主要被认为是核蛋白.
- 最近的单细胞测序揭示了DRIM在血管内皮细胞中的丰富表达,其在内皮中的作用尚不清楚.
- 了解DRIM在内皮细胞中的功能对于了解血管生物学和疾病至关重要.
研究的目的:
- 研究DRIM在人类血管内皮细胞中的局部化和功能.
- 阐明DRIM在内皮细胞中的作用背后的分子机制.
- 确定DRIM在内皮中的潜在相互作用和下游影响.
主要方法:
- 蛋白质分成和细胞成像以确定DRIM定位.
- 在内皮细胞中进行DRIM淘汰,以评估功能影响.
- 蛋白质组学分析和蛋白质相互作用测试以确定DRIM的分子标.
- 西方涂抹分析关键信号蛋白的酸化状态 (Src,FAK,STAT3).
主要成果:
- DRIM定位在人类血管内皮细胞的细胞核和细胞骨部分.
- 在DRIM Knockdown中,内皮细胞生长,迁移和血管造管形成显著受损.
- 确定了Src 激酶是DRIM的直接目标;DRIM沉默增加了Tyr419的Src酸化.
- 下游信号蛋白,包括p-FAK和p-STAT3,受到通过Src.通过DRIM操纵的影响.
结论:
- 在血管内皮细胞中,DRIM 功能既是核蛋白,又是细胞骨蛋白.
- 在调节内皮细胞行为和血管生成方面,DRIM起着至关重要的,以前未被认可的作用.
- 通过Src信号通路,DRIM会影响内皮功能.
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