人乳头瘤病毒16阳性与人乳头瘤病毒阴性食管癌的基因表达谱研究

Gene expression profiling study of HPV-16 positive and HPV-negative esophageal squamous cell carcinoma

目的 探讨人乳头瘤病毒（HPV）感染在食管癌的发生发展中可能存在的分子机制。方法采用PCR的方法检测食管癌患者中HPv的感染状况及型别．筛选出8例HPV16阳性和7例HPV阴性的食管癌组织样本．进行solexa测序及生物信息分析。结果HPV16阳性患者中共筛选出796个差异基因，其中366个基因上调。430个基因下调。对差异基因进行功能分类和通路分析，发现这些差异基因主要涉及肿瘤发生、免疫和炎性反应、细胞生长增殖以及细胞运动等方面，其中以免疫炎性反应的因子最具代表性。结论免疫因子的差异可能与食管癌中的HPV感染及作用存在一定关联。

Objective To study the difference in gene expression between human papillomavirus （HPV） 16-positive and HPV-negative esophageal squamous cell carcinoma （ESCC） . Methods Eight HPV 16-positive and seven HPV-negative ESCC specimens were evaluated by PCR. The samples were then determined for gene expression profiling using Solexa Sequencing Chip followed by bioinformatics analysis. Results A total of 796 differentially expressed genes between HPV 16-positive and HPV- negative ESCC were observed. Among them, 366 were up-regulated while 430 were down-regulated. Functional classification and pathway analysis showed that the functions of these genes were mostly related to tumor morphology, immune, and inflammatory response, cellular growth and proliferation and cellular movement. Of these, factors related to immune and inflammation were the most representative. Conclusion Differences in immunologic factors may be associated with HPV infection in esophageal cancer.