慢性萎缩性胃炎和胃癌患者T细胞亚群及NK细胞活性的检测研究
Detection of Cell-Mediated Immunity of Patients with Chronicity Atrophic Gastritis Patients and Gastric Cancer Pationts
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摘要: 本文用OKT单抗致敏血球花环法和MTT比色法对慢性萎缩性胃炎(CAG)和胃癌(GC)患者进行外周血T淋巴细胞亚群及NK细胞活性的检测。结果显示CAG患者CD+3亚群及CD4/CD8均较健康对照明显降低(P<0.01),NK细胞活性显著低下(P<0.01)。胃癌患者术前CD+3、CD+4亚群及CD4/CD8较健康对照明显降低(P<0.01),CD+8亚群显著升高(P<0.01),NK细胞活性明显升高(P<0.01)。与CAG患者比较,胃癌患者术前CD+3亚群及CD4/CD8明显降低(P<0.05),CD8+亚群显著升高(P<0.01),NK细胞活性显著低下(P<0.01)。而术后两周,以上指标有不同程度的恢复,说明CAG患者的细胞免疫功能已处于失调状态,而胃癌患者的免疫失调更为严重,但手术切除肿瘤后病人的免疫失调能迅速恢复,一般为两周左右。Abstract: The T-cell subsets and NIA cell activity of peripheral blood lymphocytes in patients with ohronioity atrophic gastritis(CAG) or gastric cancer(GC) were tested.In the rosette formation assay,OKT.monoclonal antibody sensitized sheep reel blood cells were used to detect T-cell subsets. The MTT orrimetric assay w as used to detect N K cell activity .Significant impairment of NK cell activity, a decreased rate of CD+3cell, an increased rate of CD+8 cell and a declined CD4/CD8 ratio were noted in CAG patients，compared with normal subjects.In GC patients before operation, NIA cell activity,CD+3，CD+4and CD+8、cell rate and CD4/CD8 cell ratio all decreased significantly as compared with normal subjects. In comparing CAG patients with GC patients before operation, NK cell activity was impaired, CD+3 cell rate increased, CD+8 cell rate decreased, CD4/CD8 cell ratio declined. However two weeks after operatic n, CD+3cell rate, CD+4cell rate, CD+8cell rate and CD4/CD8 cell ratio were all recovered. In conclusion, the function of cell-mediated immunity in CAG patients was disturbed and in GC patients the disturhance was more severe than in CAG patients. Two week after operation, the function of cell-mediated immunity in GC patientswas recovered.
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Key words:
- T-cell subsets /
- N K cell aotivity /
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