肝癌患者血清和癌组织中锌指蛋白216表达增加

目的 寻找肝癌相关抗原.方法 应用SEREX技术对肝癌组织cDNA文库进行血清学筛选,获得人类锌指蛋白ZNF216.利用原核表达和亲和层析技术获得ZNF216的6*His融合蛋白,建立间接ELISA方法,检测血清中产生的ZNF216抗体水平;利用RT-PCR技术检测肝癌患者肝癌组织及癌旁组织内ZNF216 mRNA的水平.结果 肝癌患者血清中产生的抗ZNF216抗体水平高于正常个体,ZNF216 mRNA在肝癌组织内的表达明显高于癌旁组织.结论 ZNF216在肝癌病人血清及癌组织内的过表达可能参与肝癌的发生,但还需要进一步研究证明.

Zinc finger protein 216 up-expressed in hepatocellular carcinoma tissue and sera

Objective To find antigens related with hepatocellular carcinoma(HCC).Methods Human Zinc Finger Protein 216(ZNF216) was identified by SEREX(serological analysis of recombinant cDNA expression libraries,SEREX).The 6His fusion protein of ZNF216 was expressed by bacteria and purified with a nickel affinity chromatography column.The level of anti-ZNF216 antibody in the sera was detected by ELISA,andZNF216 mRNA level in HCC tissue and its peripheral normal tissue was detected by RT-PCR.Results The level of anti-ZNF216 antibody in the sera of HCC patients was higher than that of healthy individuals.ZNF216 mRNA level in HCC tissue is evidently higher than peripheral normal tissue.Conclusion The over-expression of ZNF216 in the HCC sera and tissue indicates that ZNF216 perhaps plays a role in HCC.