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空间蛋白质组学揭示了独特且在进化过程中保存的肝细胞巨
Martin Guilliams1, Johnny Bonnardel1, Birthe Haest1
1Laboratory of Myeloid Cell Biology in Tissue Homeostasis and Regeneration, VIB-UGent Center for Inflammation Research, Technologiepark-Zwijnaarde 71, Ghent 9052, Belgium; Department of Biomedical Molecular Biology, Faculty of Science, Ghent University, Belgium.
Cell
|January 12, 2022
概括
这项研究绘制了肝脏
科学领域:
- 肝病学
- 免疫学
- 系统生物学
背景情况:
- 肝脏是人体最大的固体器官,
- 了解肝细胞异质性和空间组织对于疾病研究至关重要.
研究的目的:
- 创建一个健康和肥胖的人类和小鼠肝脏的空间蛋白质基因图谱.
- 识别和定位所有肝细胞类型,包括脂质相关巨细胞 (LAM).
- 研究各种物种中巨体身份的保存细胞和微环境驱动因素.
主要方法:
- 多组数据集的整合:单细胞CITE-seq,单核测序,空间转录组和空间蛋白组.
- 对肝细胞区分和局部化的验证策略的开发.
- 肝脏图谱的跨物种对齐.
主要成果:
- 形成了肝脏的综合空间蛋白质基因图谱.
- 在胆道附近发现了脂质相关的巨细胞 (LAM).
- 在七个物种中发现了保存的库普弗细胞和LAM程序.
- 发现了空间分辨的细胞和影响巨身份的微环境电路.
- 通过局部脂质暴露的LAM诱导已被证明.
- 通过ALK1- BMP9/ 10轴,库普弗细胞的发育依赖于肝星细胞的交叉交谈.
结论:
- 这项研究为肝细胞表征提供了高分辨率的空间图谱.
- LAM 是一种独特的巨细胞群体,由肝脏中的脂质暴露引起.
- 库普弗细胞的发育是由特定的肝脏微环境相互作用调节的.
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