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本文采用细胞ＥＬＩＳＡ法，研究发现人巨细胞病毒（ＨＣＭＶ）感染对单核细胞ＨＬＡ－ＤＲ的影响。结果表明ＨＣＭＶ感染后１ｄ，单核细胞ＨＬＡ－ＤＲ表达显著增高（Ｐ＜０．０１），以后逐渐降低，ｄ５降至对照水平；ＩＦＮγ（５００Ｕ／ｍｌ）．ＴＮＦ（２５０Ｕ／ｍｌ）、ＩＬ－６（５００／ｍｌ）、ＩＬ－１（５００／ｍｌ）均能不同程度地刺激单核细胞ＨＬＡ－ＤＲ表达；ＨＣＭＶ感染后，细胞因子刺激ＨＬＡ－ＤＲ表达的水平在感染后ｄ５，较对照组均显著降低（Ｐ＜０．０１）；ＩＬ－１＋ＩＦＮ－γ及ＴＮＦ＋ＩＦＮ－γ在刺激单核细胞ＨＬＡ－ＤＲ表达时有协同作用；ＨＣＭＶ感染后，ＩＦＮ－γ＋ＩＬ－１及ＴＮＦ＋ＩＦＮ协同刺激单核细胞ＨＬＡ－ＤＲ表达水平较对照组显著降低（Ｐ＜０．０１）。结果提示：在ＨＣＭＶ感染引起免疫抑制过程中，其引起单核细胞ＨＬＡ－ＤＲ表达降低是一重要机制。
In this paper, the use of cell ELISA method, the study found that human cytomegalovirus (HCMV) infection of monocytes HLA-DR. The results showed that the expression of HLA-DR in monocytes was significantly increased (P <0.01) at 1 d after HCMV infection, then decreased gradually and d5 decreased to the control level; IFNγ (500 U / ml). The expression of HLA-DR in monocytes was stimulated by TNF (250U / ml), IL-6 (500 / ml) and IL-1 IL-1 + IFN-γand TNF + IFN-γ had synergistic effects on the expression of HLA-DR in mononuclear cells after HCTV infection, and IFN-γ + IL 1 and TNF + IFN synergistically stimulate the expression of HLA-DR in monocytes significantly lower than the control group (P <0.01). The results suggest that in HCMV infection-induced immunosuppression, it causes the monocyte to reduce HLA-DR expression is an important mechanism.