LMP1-augmented kappa intron enhancer activity contributes to upregulation expression of Ig kappa light chain via NF-kappaB and AP-1 pathways in nasopharyngeal carcinoma cells oleh Wang ZhenLian, Deng XiYun, Li ZiJian, Liu SuFang, Li Ming, Hu DuoSha, Duan Zhi, Zheng Hui, Liu HaiDan, Tang Min, Shi Ying, Yi Wei, Cao Ya