脑出血和不同病因缺血性脑卒中后外周血单核细胞和中性粒细胞的独特转录程序。

Distinct peripheral blood monocyte and neutrophil transcriptional programs following intracerebral hemorrhage and different etiologies of ischemic stroke.

机构信息

Department of Neurology, School of Medicine, University of California, Davis, Sacramento, CA, USA.

Department of Medicine, University of Alberta, Edmonton, Canada.

出版信息

J Cereb Blood Flow Metab. 2021 Jun;41(6):1398-1416. doi: 10.1177/0271678X20953912. Epub 2020 Sep 22.

Abstract

Understanding cell-specific transcriptome responses following intracerebral hemorrhage (ICH) and ischemic stroke (IS) will improve knowledge of the immune response to brain injury. Transcriptomic profiles of 141 samples from 48 subjects with ICH, different IS etiologies, and vascular risk factor controls were characterized using RNA-seq in isolated neutrophils, monocytes and whole blood. In both IS and ICH, monocyte genes were down-regulated, whereas neutrophil gene expression changes were generally up-regulated. The monocyte down-regulated response to ICH included innate, adaptive immune, dendritic, NK cell and atherosclerosis signaling. Neutrophil responses to ICH included tRNA charging, mitochondrial dysfunction, and ER stress pathways. Common monocyte and neutrophil responses to ICH included interferon signaling, neuroinflammation, death receptor signaling, and NFAT pathways. Suppressed monocyte responses to IS included interferon and dendritic cell maturation signaling, phagosome formation, and IL-15 signaling. Activated neutrophil responses to IS included oxidative phosphorylation, mTOR, BMP, growth factor signaling, and calpain proteases-mediated blood-brain barrier (BBB) dysfunction. Common monocyte and neutrophil responses to IS included JAK1, JAK3, STAT3, and thrombopoietin signaling. Cell-type and cause-specific approaches will assist the search for future IS and ICH biomarkers and treatments.

摘要

了解脑出血 (ICH) 和缺血性中风 (IS) 后细胞特异性转录组反应将提高对脑损伤免疫反应的认识。使用 RNA-seq 对来自 48 名 ICH 患者、不同 IS 病因和血管风险因素对照者的 141 个样本的分离中性粒细胞、单核细胞和全血进行了转录组特征分析。在 IS 和 ICH 中,单核细胞基因下调,而中性粒细胞基因表达变化通常上调。ICH 对单核细胞的下调反应包括先天、适应性免疫、树突状细胞、NK 细胞和动脉粥样硬化信号转导。中性粒细胞对 ICH 的反应包括 tRNA 充电、线粒体功能障碍和 ER 应激途径。ICH 中常见的单核细胞和中性粒细胞反应包括干扰素信号转导、神经炎症、死亡受体信号转导和 NFAT 途径。IS 对单核细胞的抑制反应包括干扰素和树突状细胞成熟信号转导、吞噬体形成和 IL-15 信号转导。IS 对中性粒细胞的激活反应包括氧化磷酸化、mTOR、BMP、生长因子信号转导和钙蛋白酶介导的血脑屏障 (BBB) 功能障碍。ICH 中常见的单核细胞和中性粒细胞反应包括 JAK1、JAK3、STAT3 和血小板生成素信号转导。细胞类型和病因特异性方法将有助于寻找未来 IS 和 ICH 的生物标志物和治疗方法。

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