系统性红斑狼疮患者外周血单一核细胞Caspase-1和Caspase-3mRNA的表达

mRNA Expression of Caspase-1 and Caspase-3 in the Peripheral Blood Mononuclear Cells of Patients with Systemic Lupus Erythematosus

目的探讨系统性红斑狼疮(SLE)患者外周血淋巴细胞Caspase-1和Caspase-3的表达水平及其与淋巴细胞凋亡的关系。方法应用逆转录-聚合酶链反应(RT-PCR)检测34例活动期SLE患者和30例正常人外周血单一核细胞(PBMC)中Caspase-1和Caspase-3mRNA的表达水平。结果活动期SLE患者PBMC中Caspase-1mRNA的平均表达水平(1.20±0.33)明显高于正常人对照组(0.79±0.25),差异有非常显著性(P<0.01);Caspase-3mRNA的平均表达水平(0.87±0.16)高于正常人对照组(0.66±0.10),差异有显著性(P<0.05)。活动期SLE患者PBMC中Caspase-1和Cas-pase-3的阳性表达率与正常人对照组相比差异无显著性(P>0.05)。结论活动期SLE患者外周血淋巴细胞Caspase-1和Caspase-3mRNA表达水平增高,Caspase级联反应可能参与了SLE患者淋巴细胞的凋亡过程。

Objective To investigate the mRNA espression level of Caspase-1 and Caspase-3 in the patients with systemic lupus erythematosus(SLE) and its association with lymphocyte apoptosis. Methods Reverse transcription-polymerase reaction (RT-PCR) technique was applied to semiquantitatively analyze the mRNA expression of Caspase-1 and Caspase-3 in the peripheral blood mononuclear cells (PBMC) from 34 active SLE patients and 30 healthy subjects. Results Compared with normal controls, the mean levels of Caspase-1 or Caspase-3 mRNA expression in active SLE group was significantly increased(P< 0.01 and P< 0.05, respectively). But there was no statistical difference in the positive rate of Caspase-1 and Caspase-3 expression between the active SLE patients and the normal controls (P >0.05). Conclusion There are increased expressin of Caspase-1 and Caspase-3 in the PBMC of SLE patients, which may be involved in the lymphocyte apoptosis of SLE patients.