目的:探讨乙肝相关肝癌患者外周血单个核细胞及肝活检组织CXCR1、CXCR2及CXCL8表达及其临床意义.方法:用实时荧光定量PCR法检测36例乙肝相关肝癌患者外周血PBMCs中CXCR1、CXCR2及CXCL8mRNA水平;SP法检测肝活检组织CXCR1、CXCR2及CXCL8蛋白表达水平;化学发光免疫分析法检测血清CRP水平,并对各指标进行相关性分析.结果:乙肝相关肝癌患者PBMCs中CXCR1、CXCR2及CXCL8 mRNA水平分别为(0.952 7±0.197 2)、(0.896 9±0.173 0)、(1.771 9±0.248 9),较正常对照组明显升高,差异有统计学意义(P＜0.01).SP结果提示,CXCR1、CXCR2及CXCL8的蛋白水平较对照组明显升高(P＜0.05).乙肝相关肝癌患者血清CRP水平与PBMC内CXCR1(r=0.54,P＜0.01)、CXCR2(r=0.49,P＜0.01)及CXCL8(r=0.63,P＜0.01)呈正相关.结论:乙肝相关肝癌患者外周血PBMCs及肝活检组织CXCR1、CXCR2及CXCL8表达明显升高,且与血清CRP呈正相关,推测CXCR1、CXCR2及CXCL8介导的信号转导过程可能在乙肝相关肝癌发病过程中发挥重要作用,为肝癌免疫干扰治疗提供新的靶点.%Objective:To investigate the expression levels of CXCR1,CXCR2 and their common ligand CXCL8 in peripheral blood mononuclear cells (PBMCs) and liver biopsy from the patients with hepatitis B related hepatocellular carcinoma and their clinical significances.Methods:Quantitative real time polymerase chain reaction (qRT-PCR) was used to detect the mRNA levels of CXCR1,CXCR2,CXCL8 in the peripheral blood mononuclear cells of thirty-six hepatitis B related hepatocellular carcinoma and the protein levels of CXCR1 and CXCR2 and CXCL8 in liver biopsy were detected by SP immunohistochemical method.The level of C-reactive protein in serum was determined by chemiluminescence immunoassay respectively.Then,the correlations between CRP and the mRNA of CXCR1,CXCR2 and CXCL8 were analyzed.Results:The mRNA levels of CXCR1 (0.952 7±0.197 2),CXCR2 (0.896 9±0.173 0),CXCL8 (1.771 9±0.248 9) in the PBMCs of hepatitis B related hepatocellular carcinoma were significantly higher than those in controls (P＜0.01).And the protein levels of CXCR1,CXCR2 and CXCL8 were also obviously increased in liver biopsy of hepatitis B related hepatocellular carcinoma (P＜0.05).In addition,there was positive correlations between the level of serum C-reactive protein and the mRNA expression of CXCR1 (r =0.54,P＜0.01),CXCR2 (r =0.49,P＜0.01),CXCL8 (r =0.63,P＜0.01).Conclusion:The levels of CXCR1,CXCR2 and CXCL8 significantly increased in hepatitis B related hepatocellular carcinoma patients and positively correlated with serum CRP,suggesting that CXCR1,CXCR2 and their common ligand CXCL8 signal transduction process may play a key role in the pathological process of hepatitis B related hepatocellular carcinoma,which may provide a new direction for the immune intervention therapy of hepatocellular carcinoma.
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