鼻咽癌患者血清sICAM-1、sCD4及sCD8的表达及其意义

目的:探讨鼻咽癌患者外周血清可溶性CD4(sCD4)、可溶性CD8(sCD8)和可溶性ICAM—1(sICAM—1)的表达及其意义。方法:采用酶联免疫吸附测定法(ELISA)检测54例鼻咽癌患者治疗前、后血清sICAM一1、sCD4与sCD8水平。结果:鼻咽癌患者血清sICAM—1、sCD4及sCD8水平明显增高,与对照组比较,差异有极显著性意义(均P<0.01),血清sICAM—1浓度与TNM分期及淋巴结转移有关(均P<0.05),而sCD4、sCD8水平与淋巴结转移无关(均P>0.05);放疗终sCD4、sCD8与sICAM—1水平比放疗前明显降低(均P<0.01),但仍比对照组高(均P<0.01);放疗后6个月肿瘤全消组血清sICAM—1、sCD4与sCD8继续保持较低水平,与放疗前比较,差异有极显著性意义(均P<0.01);肿瘤残留组血清sICAM—1、sCD4与sCD8浓度出现不同程度回升,其中sICAM—1水平与肿瘤全消组比较,差异有极显著性意义(P<0.01),sCD4、sCD8浓度接近治疗前水平(均P>0.05),但比肿瘤全消组高(均P<0.05)。结论:鼻咽癌存在与sICAM—1表达相关的细胞免疫应答异常,血清sI—cAM—1、sCD4与sCD8的水平检测可作为鼻咽癌病情评估、疗效监测及随访的血清学指标。

Expression and significance of serum sICAM-1 and sCD4 & sCD8 in patients with nasopharyngeal carcinoma

Objective:To study the expression of serum sICAM-1 and sCD4 &- sCD8 antigens in patients with nasopharyngeal carcinoma and clinical significances. Method: The serum levels of sICAM-1 and sCD4 & sCD8 antigens were determined in 54 patients with nasopharyngeal carcinoma (NPC group) and 32 healthy adults (normal group) by ELISA. Result; Expressions of serum sICAM-1 and sCD4 &- sCDg antigens in NPC group were significantly higher than that in normal group ( P <0. 01,respectively). The levels of serum sICAM-1 in patients with 111"IV stages were higher than those with I - II stages ( P <0. 05) , and those in patients with no lymph node metastasis lower than in lymph node metastasis ( P <0. 01); but the serum levels of sCD4 and sCD8 antigens were not related to UICC-TNM stages in nasopharyngeal carcinoma ( P >0. 05). The levels of serum sICAM-1 and sCD4 &- sCD8 antigens decreased significantly in disappearance of tumor and metastatic lymph node after radiotherapy ( P <0. 01). Conclusion: sICAM-1 might be involved in the cellular immunopathogenesis of nasopharyngeal carcinoma, and the measurement of the serum sICAM-1 and sCD4 and sCD8 antigens may reflect ability of neoplasm cell in freedom from host immunological surveillance. Dynamic measurement of serum sICAM-1 and sCD4 and sCD8 antigens may be a useful objective index to evaluate prognosis and curative effects of nasopharyngeal carcinoma.