心脏巨细胞在健康和疾病中的功能多样性
Steven Yang1, Vinay Penna1, Kory J Lavine2,3,4
1Center for Cardiovascular Research, Division of Cardiology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO, USA.
Nature reviews. Cardiology
|January 1, 2025
概括
心脏巨细胞,起源于胚胎或最终的造血,并通过CC动机化学因受体2 (CCR2) 表达来区分,在心脏健康和疾病中发挥着独特的作用. 了解这些人群为心脏病提供了新的治疗和诊断途径.
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:
- 巨细胞是心脏中关键的 stromal 细胞,其起源可追溯到胚胎或最终的造血.
- 心脏巨细胞根据CC-motif化学因子受体2 (CCR2) 表达方式被分为两个主要种群,影响其在恒温和疾病中的功能.
研究的目的:
- 审查心脏巨细胞的发育起源.
- 在稳定状态和损伤条件下描述新发现的心脏巨细胞状态和细胞社区.
- 讨论心脏巨细胞在心脏健康和疾病中的多样性作用和效应器功能.
主要方法:
- 审查最近的文献,专注于过去5年的研究.
- 整合来自单细胞RNA测序和空间转录组学技术的发现.
- 分析巨细胞的起源,转录的明显性和细胞表面标记物.
主要成果:
- 存在两种不同的心脏巨细胞群体:胚胎衍生的CCR2-巨细胞 (组织居民,修复专注) 和最终的血液形成衍生的CCR2+巨细胞 (促炎,损伤相关).
- 单细胞RNA测序揭示了心脏巨细胞群体内的扩大多样性,特别是在受伤的心脏中.
- 空间转录组学识别了与疾病相关的细胞社区,包括巨细胞,其他免疫细胞和纤维细胞,表明细胞-细胞通信中的作用.
结论:
- 特定的心脏巨细胞群在心脏病变发生过程中起着不同的作用.
- 了解巨细胞的多样性和相互作用对于开发新的治疗点和心脏病诊断工具至关重要.
- 对心脏巨细胞生物学的进一步研究为推进心血管医学提供了重大潜力.
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