来自系统性硬化症患者的免疫球蛋白G修改了内皮细胞的分子特征
Aurélien Chepy1,2, Solange Vivier1, Fabrice Bray3
1Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, Lille, France.
RMD open
|March 23, 2025
概括
来自系统性硬化症 (SSc) 患者的净化IgG改变了内皮细胞 (EC) 蛋白质组和转录组,与抗核抗体 (ANA) 血清型相关的变化. 功能性抗体与这些EC资料没有关联.
科学领域:
- 免疫学 免疫学 免疫学
- 蛋白质组学是指蛋白质组学.
- 文字转录学 (Transcriptomics) 是一个学科.
背景情况:
- 反核抗体 (ANA) 是系统性硬化症 (SSc) 的关键生物标志物.
- 内皮细胞 (EC) 在血管病变中发挥着至关重要的作用,这是SSc的潜在并发症.
- 功能性抗体 (FA) 可能有助于SSc的致病性.
研究的目的:
- 为了研究从SSc患者获得的纯化免疫球蛋白G (IgG) 对EC欧米特征的影响.
- 探索特定的ANA血清型与EC观察到的变化之间的关系.
主要方法:
- 用SSc患者,全身性红斑狼 (SLE) 患者和健康对照 (HC) 的净化IgG培养了内皮细胞.
- 使用液体染色学-双重质谱法 (LC-MS/MS) 和RNA测序来分析EC的奥米克特征.
- 蛋白质组发现在一个独立的队列中得到了验证.
主要成果:
- 蛋白质组学数据显示,在SSc患者中,与不同的ANA血清型相关的独特EC概况.
- 转录组学数据显示,根据ATA+状态对SSc患者进行聚类.
- 验证队列证实了在ATA+患者中独特的EC蛋白质组形状和临床严重程度.
- 在SSc患者中,FA存在与蛋白质组概况之间没有发现任何关联.
结论:
- 来自SSc患者的净化IgG显著修改了EC蛋白质组和转录组.
- 这些EC的分子变化与特定的ANA血清型有很强的相关性.
- 这项研究强调了ANA血清型在推动SSc的EC变化中的作用.
相关概念视频
Cell-mediated Immune Responses
Overview
Special Features of Adaptive Immunity
The adaptive immune system, a crucial component of the overall immune response, offers a highly specialized defense against pathogens. It involves specific cell types and features, enabling it to combat infections effectively and efficiently.
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
The primary cell types involved in adaptive immunity are T cells and B cells. Each type has a unique role in defending the body against pathogens. T cells are responsible for cell-mediated immunity. They identify and eliminate infected cells directly,...
Diversity of Antigen Receptors
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
B Cell Activation and Differentiation
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...


