摘要
目的:研究银屑病和系统性红斑狼疮(systemic lulups erythematosus,SLE)患者T淋巴细胞CD2、CD4+、CD8+以及CD4+/CD8+的变化及其相关性。方法:应用流式细胞仪检测我院收治的62例银屑病和31例SLE患者T淋巴细胞CD2、CD4+、CD8+及CD4+/CD8+分子的表达水平并统计学分析其相关性。结果:银屑病患者T淋巴细胞CD4+/CD8+的比值与正常对照组比较显著增高,而SLE患者与正常对照组比较显著降低。银屑病患者CD4+百分率与正常对照组比较显著增高,SLE患者CD8+与正常对照组比较显著增高。银屑病患者CD2与CD4+之间呈正相关(γ=0.309,P<0.05),CD4+与CD4+/CD8+之间呈显著正相关(γ=0.536,P<0.05),SLE患者CD2仅与CD4+之间呈正相关(γ=0.378,P<0.05)。结论:T淋巴细胞免疫功能紊乱可能在银屑病的发病机制中发挥了重要作用,CD2可能使银屑病的T淋巴细胞紊乱致炎症加重。SLE患者T细胞亚群CD4+/CD8+比值下降,CD2与CD4呈正相关亦可能使SLE的T淋巴细胞加速信号传导紊乱,CD8+百分率增高可能在SLE的发病机制中起重要作用。
Objective: To analyze the role of CD2, CD4+, CD8+and CD4+/CD8+of T lymphocyte in patients with psoriasis and SLE, and the correlation between them. Methods: The expression of CD2, CD4+,CD8+and CD4+/CD8+of T lymphocyte in psoriasis patients and SLE patients was measured by FCM. Results: The ratio of CD4+/CD8+ in patients with psoriasis was significantly higher than in normal controls(P0.001), while that in patients with SLE was significantly lower than in normal controls(P0.001). The percentage of CD4+in patients with psoriasis was significantly higher than in normal controls(P0.001); the percentage of CD8+in the patients with SLE was significantly higher than in normal controls(P 0.001). CD2 and CD4+, CD4+and CD4+/CD8+in psoriasis patients showed positive correlation. Conclusion: The immune function of lymphocyte was found to be turbulent in psoriasis patients.CD2 might aggravate psoriatic T lymphocytes disorders, then cause a promoting inflammation. The ratio of T subpopulation was upregulated and the relative percentage of CD4+increased, which may be important in the pathogenesis of psoriasis. The positive correlation between CD2 and CD4 may also ma ke SLE T lymphocytes disturbance, and accelerate signal conduction. The downregulation of T subpopulation ratio and higher expression of CD8+may be involved in the pathogenesis of SLE.
出处
《现代生物医学进展》
CAS
2013年第30期5847-5850,共4页
Progress in Modern Biomedicine
基金
国家自然科学基金项目(30271197)
关键词
银屑病
系统性红斑狼疮
T细胞亚群
淋巴细胞
Psoriasis
Systemic lulups erythematosus(SLE)
T cell subpopulation
Lymphocyte