单细胞RNA测序揭示了免疫检查点抑制剂相关心肌炎的改变天生的免疫力
Bowen Lou1,2, Manyun Guo1,2, Tao Zheng1,2
1Department of Cardiovascular, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
Immunology
|March 1, 2024
概括
免疫检查点抑制剂 (ICI) 相关心肌炎涉及单细胞,NK细胞和B细胞. S100A蛋白被确定为这种罕见但严重的毒性的潜在生物标志物.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 基因组学就是基因组学.
背景情况:
- 免疫检查点抑制剂 (ICI) 是关键的癌症疗法.
- 心肌炎是一种与ICI相关的罕见但严重的不良事件.
- 与ICI相关的心肌炎的确切机制和治疗目标尚未完全理解.
研究的目的:
- 在患有ICI相关心肌炎的患者中,对外周血液单核细胞 (PBMC) 的转录组概况进行表征.
- 为了确定参与ICI诱导心肌炎的细胞参与者和分子机制.
- 发现潜在的生物标志物,用于早期检测和ICI相关心肌炎的管理.
主要方法:
- 来自四组患者的PBMC单细胞RNA测序 (scRNA-seq):对照组,没有心肌炎的ICI治疗,活跃心肌炎和恢复.
- 亚集群的确定,功能丰富分析和细胞对细胞相互作用的分析.
- 使用大量RNA测序和血清标记物的识别进行验证.
主要成果:
- 与ICI相关的心肌炎表现出具有独特转录特征的多样化的细胞群.
- 单细胞,自然杀手 (NK) 细胞和B细胞在调节先天免疫和炎症方面发挥着重要作用.
- 鉴定出S100A蛋白家族是ICI相关心肌炎的潜在血清生物标志物.
结论:
- 这项研究为ICI相关心肌炎提供了全面的PBMC细胞地图.
- 了解细胞和分子格局可以阐明ICI诱导心肌炎的病理生理学.
- 已识别的S100A蛋白质为管理ICI相关心肌炎的诊断和治疗策略提供了潜力.
更多相关视频
12:24Noninvasive Assessment of Cardiac Abnormalities in Experimental Autoimmune Myocarditis by Magnetic Resonance Microscopy Imaging in the Mouse
Published on: June 20, 2014
10.0K
05:54Preparation of a Non-Cardiomyocyte Cell Suspension for Single-Cell RNA Sequencing from a Post-Myocardial Infarction Adult Mouse Heart
Published on: February 3, 2023
2.1K
相关概念视频
Myocarditis I: Introduction
647
Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...
647
Myocarditis II: Clinical Features and Diagnostic Tests
496
Myocarditis is an inflammation of the heart muscle. The symptoms vary widely, encompassing asymptomatic presentations to severe, acute manifestations.Clinical PresentationAsymptomatic cases: In some instances, myocarditis may be asymptomatic, with the infection resolving without intervention. These cases often go undetected unless discovered incidentally through diagnostic imaging or tests conducted for other reasons.General Early Symptoms: Early symptoms of myocarditis are non-specific and can...
496
Myocarditis III: Medical Management
344
Myocarditis: Comprehensive Medical ManagementMyocarditis, the heart muscle inflammation, requires a comprehensive medical management strategy that addresses the underlying cause, provides supportive care, manages symptoms, and reduces cardiac workload.Infections and Autoimmune CausesAdminister appropriate antimicrobial therapy when an infectious agent causes myocarditis. For instance, penicillin treats infections caused by Group A Streptococcus. In cases where autoimmune processes are...
344
