论文部分内容阅读
在感染性疾病中,淋巴因子与免疫调节机制密切相关。为了解在人类免疫缺陷病毒(HIV)感染患者中淋巴因子对多种刺激原的动态变化反应情况,以便进一步弄清HIV感染的病理变化机制,我们采用定量逆转录聚合酶链反应的方法(RT-PCR),对经植物血凝素(PHA)、商陆致丝裂素(PWM)、念珠菌蛋白(candidin)、抗CD3单克隆抗体(Anti-CD3MAb)和重组白介素2(rIL2)刺激后的HIV感染者及对照组外周血单一核细胞(PBMC)中的白介素2(IL2)、γ干扰素(IFN-γ)、白介素10(IL10)、白介素6(IL6)、肿瘤坏死因子α(TNF-α)和IL2受体(IL2R)的动态变化进行了比较。在HIV感染组中,其IL2和IL2R基因表达水平明显低于对照组。IL2和IFN-γ均由T辅助细胞一型(TH1)克隆产生,然而在HIV感染患者中,IFN-γ的水平却明显增高。IL10基因表达情况视刺激原的不同而不同。经PHA、candidin、rIL2(1000U)刺激后,HIV感染组IL10mRNA表达水平明显高于对照组,但经rIL2(10U)和Anti-CD3MAb刺激后却低于对照组。HIV感染组TNF-α基因表达开?
In infectious diseases, lymphokines and immune regulation are closely related. In order to understand the dynamic response of lymphokines to various stimuli in HIV-infected patients so as to further understand the pathological mechanism of HIV infection, we used quantitative reverse transcriptase-polymerase chain reaction (RT -PCR) was performed on HIV (human immunodeficiency virus) cells after stimulation with phytohaemagglutinin (PHA), merganserinate (PWM), candidin, anti-CD3MAb and rIL2 The levels of IL-2, IFN-γ, IL-10, IL-6 and TNF-α in peripheral blood mononuclear cells (PBMCs) ) And IL2 receptor (IL2R) were compared. In HIV-infected group, IL2 and IL2R gene expression levels were significantly lower than the control group. Both IL2 and IFN-γ are produced by T-helper cell type 1 (TH1) clones, however IFN-γ levels are significantly elevated in HIV-infected patients. IL10 gene expression varies depending on the original stimulus. After stimulation with PHA, candidin and rIL2 (1000 U), the level of IL10mRNA in HIV-infected group was significantly higher than that in control group, but was lower than that in control group after stimulation with rIL2 (10U) and Anti-CD3MAb. TNF-α gene expression in HIV infected group open?