来自埃索诺菲尔的酸性蛋白质与骨形态遗传蛋白质受体结合,促进血管化和动脉生成
Zhaojie Meng1, Shuya Zhang1,2, Wei Li3
1Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, 77 Avenue Louis Pasteur, NRB-7, Boston, MA 02115, USA.
European heart journal
|June 6, 2023
概括
乙酸和它们的阴阳性蛋白,如乙酸阴阳性蛋白 (ECP),通过激活光滑肌细胞中的特定信号通路来促进血管化和动脉样硬化. 减少乙氨基细胞可能会防止心血管疾病的进展.
科学领域:
- 心血管生物学 心血管生物学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 血中乙氨基酸细胞数和乙氨基酸细胞离子蛋白 (ECP) 度是心血管疾病的确立危险因素.
- 乙氨基酸在炎症过程中涉及,有助于动脉样硬化.
研究的目的:
- 为了研究乙素和ECP在血管化和动脉动脉生成中的作用.
- 阐明埃索诺菲尔细胞影响光滑肌肉细胞 (SMC) 化的分子机制.
主要方法:
- 人类和小鼠动脉样硬化病变的免疫染,以检测乙素透.
- 使用缺少乙氨基酸的 ΔdblGATA 小鼠和野生型 (WT) 小鼠进行的研究,包括采养转移乙氨基酸.
- 在体外实验中,SMCs来自WT和Runt相关转录因子-2 (Runx2) 淘汰赛小鼠,接受了eosinophils或mEar1 (ECP的小鼠同类物) 的治疗.
- 分析信号通路 (Smad,BMPR,TGFBR) 和蛋白质与蛋白质相互作用,使用免疫阻塞,免疫沉和结合试验.
- 在人类队列中,血中乙酸细胞数量和ECP水平与动脉化得分的相关性分析.
主要成果:
- 在ΔdblGATA小鼠中,乙氨基酸缺乏减少了动脉动脉生成和血管化.
- 叶绿素和mEar1,但不是IL-4或IL-13,通过BMPR-1A/1B-Smad-1/5/8-Runx2通路诱导了SMC化.
- mEar1和人类ECP/EDN与SMC上的BMPR-1A/1B结合,促进骨质生分化.
- 在人类队列中,血中乙氨基酸细胞数量和ECP水平与动脉化相关.
结论:
- 乙氨基基酸有助于血管化和动脉动脉生成.
- 乙氨基酸酸蛋白通过激活SMC中的BMPR-1A/1B-Smad-1/5/8-Runx2信号通路来调解这些效应.
- 向乙氨基基基或其阴性蛋白可能为心血管疾病提供治疗策略.
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