目的 探讨CD4+、CD25+调节性T淋巴细胞在胃癌患者胃组织中的表达及意义.方法 利用流式细胞仪对76例胃癌及癌旁组织中的CD4+、CD25+调节性T淋巴细胞与CD8+T淋巴细胞进行定量及量化关系分析.结果 CD4+、CD25+调节性T淋巴细胞的阳性率在胃癌、癌旁组织、正常时照组分别为(11.2±0.9)%、(6.4±1.1)%、(4.1±0.8)%.癌组织与癌旁组织和对照组比较,差异有统计学意义(t=2.03、2.05,P<0.05).在肿瘤组织,随着CD4+、CD25+调节性T淋巴细胞的增加,CD8+T淋巴细胞出现了快速减少趋势.而在癌旁组织中却没有此现象出现.结论 CD4+、CD25+调节性T淋巴细胞通过对CD8+T淋巴细胞的抑制参与胃癌细胞抗肿瘤免疫的作用.%Objective To study the expression of CD4+, CD25+ regulatory T cells and its significance in carcinoma of stomach. Methods Flow cytometry was used to quantify and analyze the results of CD4+, CD25 + regulatory T cells and CD8+ T cells in 76 patients with gastric cancer. Results CD4+, CD25+ regulatory T cells expression in gastric cancer tissue, adjacent tissues and control group are (1.2±0.9) %, (6.4±1.1) % and (4.1±0.8) %. The results have statistical significance (P<0.05). CD8+ T cells markedly de-creased in gastric cancer tissue, while CD4+ , CD25+ regulatory T cells increased. But this manifest did not happen in adjacent tissues.Conclusion CD4+, CD25+ regulatory T cells suppress gastric cancer though inhibiting CD8+ T cells.
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