ABSTRACT
Objective To compare the different expression of EBNA-1 in the normal human lymphocytes and in the EBV-induced lymphomas so as to provide the basis for studying the mechanism of the EB virus-induced lymphoma. Methods Animal model of EBV-induced lymphoma was constructed in SCID mice. EBNA-1 gene expression level was detected by real-time PCR and Western blot. Results EBV-induced lymphomas in animal model were replicated. EBNA-1 gene was expressed both in normal human lymphoma cells and 3 EBV-induced lymphoma cells. In EBV-induced lymphoma cells , the expression was up-regulated 11 683 times than in normal lymphocytes. Western blot results showed that the expression of EBNA-1 protein in induced lymphoma cells increased significantly compared with that in normal lymphocytes. Conclusions EBNA-1 expression in EBV-induced lymphoma cells is up-regulated than in normal lymphocytes. EBNA-1 may play an important role in the development of EBV-induced lymphoma.