趋化因子VCC-1在肝细胞癌中的表达及其意义

目的 研究趋化因子VCC-1在肝细胞癌中的表达及其临床意义.方法 采用RT-PCR法检测8种肝细胞癌细胞株、10例正常肝脏组织标本、42例肝癌组织及癌旁组织中的VCC-1的mRNA表达情况,并结合临床资料探讨VCC-1的临床意义.结果 肝细胞癌细胞株中,SUN398的VCC-1表达量最高,Hep3B和Huh7几乎不表达,SUN387、SUN449、SUN423、HepG2、PLC5的表达介于两者之间.42例肝癌患者标本中,癌组织及癌旁组织同时存在表达,癌组织高于癌旁组织26例(61％,14.9±7.6倍),癌旁组织高于癌组织16例(39％,6.9±5.4倍).癌组织表达上调(P＜0.01).VCC-1的表达水平与肿瘤分化程度、直径有关(P＜0.05).在10例正常肝脏标本中,8例无表达,2例微表达,其表达水平低于癌细胞株、肝癌组织及癌旁组织(P＜0.01),而复发的3例标本均有癌组织高表达(20.1±2.3倍).有癌栓的8例标本中,5例出现癌组织VCC-1高表达(17.3±4.5倍),3例低表达.结论 VCC-1表达升高可能与肝细胞癌的发生发展有关,并有可能成为肝细胞癌的治疗靶点.

Expression of chemokine VCC-1 in hepatocellular carcinoma

Objective To investigate the expression of chemokine VCC-1 in hepatocellular carcinoma (HCC).Methods RT-PCR was used to detect the VCC-1 mRNA expressions in 8 HCC cell lines,10 normal liver tissues and 42 HCC tissues.Result In HCC cell lines,the expressions of VCC1 mRNA were high in SUN 398,intermediate in SUN387,SUN449,SUN423,HepG2,PLC5,and low in Hep3B and Huh7.In HCC tissues,the expressions of VCC-1 mRNA could be found in tumor and adjacent tissues.In these 42 tissues,VCC-1 mRNA was highly expressed in 26 specimens of tumor tissues (61％,14.9±7.6 fold) and 16 specimens of adjacent tissues (39％,6.9±5.4 fold).VCC-1 mRNA was up regulated in tumor tissues (P＜0.01).The expression levels of VCC-1 mRNA in 2 specimens were related to tumor differentiation and tumor size (P＜0.05).In the 10 specimens of normal liver tissues,no expression was detected in 8 specimens and light expression in 2 specimens.The expression was lower compared with cell lines,cancer tissues and adjacent tissues (P＜0.01).In 3 cases of recurrence,VCC-1 was highly expressed in cancer tissues (20.1±2.3 fold).In 8 specimenswith tumor thrombosis,5 tissues showed highly expressed VCC-1 (17.3±4.5 fold) while 3 specimens showed low expression.Conclusion VCC-1 plays an important role in HCC,and it may be considered as a potential therapeutic target of HCC.