CD70 and nasopharyngeal carcinoma: It has been shown that the EBV oncoprotein latent membrane protein 1 (LMP1) upregulates CD70 expression in EBV‐infected epithelial and B cells,41 and LMP1 may thus also contribute to the overexpression of CD70 in other EBV‐induced malignancies, such as nasopharyngeal carcinoma, Burkitt's lymphoma, and nasal NK/T‐cell lymphoma.23