单细胞可塑性和HLA-DR表达在X结合的AGAMMAGLOBULINEMIA患者
Hasibe Artac1, Ayca Ceylan2, Ilknur Kulhas Celik2
1Division of Immunology and Allergy, Department of Pediatrics, Faculty of Medicine, Selcuk University, Konya, Turkey. artachasibe@gmail.com.
Immunologic research
|September 19, 2025
概括
患有X链接的亚甲基球蛋白血症 (XLA) 的患者表现出改变的单细胞子集和增加的HLA-DR表达,这可能表明补偿性先天免疫反应. 这些变化,以及单细胞可塑性,可能会预测诸如支气管炎症等并发症.
科学领域:
- 免疫学 免疫学 免疫学
- 传染性疾病 传染性疾病
背景情况:
- 布鲁顿的氨酸激酶 (BTK) 缺陷在X结合性亚胺球蛋白血症 (XLA) 中会影响先天免疫力,特别是单细胞.
- 单细胞子集和人类白细胞抗原DR (mHLA-DR) 表达对于免疫反应和感染易感性至关重要.
研究的目的:
- 研究XLA.患者中单细胞子集和mHLA-DR表达的作用.
- 探索单细胞可塑性及其与临床结果的相关性,例如支气管病变.
主要方法:
- 流细胞计用于分析59名XLA患者和37名健康对照者的三个单细胞子集 (经典,中间,非经典) 和mHLA-DR表达.
- 单细胞可塑性使用经典/中间单细胞 (CMIM) 比率进行评估.
主要成果:
- 与对照组相比,XLA患者的经典单细胞减少,但中间和非经典单细胞增加.
- 在XLA患者的总单细胞和亚组中观察到mHLA-DR表达的增加.
- 患有支气管切除症的XLA患者表现出非经典单细胞mHLA-DR降低和较低的CMIM比率.
结论:
- 改变的单细胞形状和XLA中增加的mHLA-DR表达可能代表对适应性免疫受损的补偿性先天性免疫反应.
- 单细胞HLA-DR表达和CMIM比率作为潜在的生物标志物用于预测慢性并发症,如XLA中的支气管病变.
相关概念视频
Antigens Involved in Adaptive Immunity
An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
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...


