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. 2021 Mar 23;12:640918. doi: 10.3389/fimmu.2021.640918

Figure 1.

Figure 1

Changes in Epstein Barr virus (EBV) infection, pathogenesis and immune control as revealed by infection of humanized mice with mutant viruses. Elimination of EBNA3C (ΔEBNA3C) allows establishment of persistent EBV infection without transformation. Loss of EBNA3B (ΔEBNA3B) increases and loss of BZLF1 (ΔBZLF1) decreases EBV associated lymphomagenesis. Loss of viral miRNAs (ΔmiRNA) leads to increased expression of the antigen processing machinery for MHC class I presentation, allowing for improved immune control by CD8+ T cells. Deficiency in LMP1 (ΔLMP1) causes dependency on CD4+ T cell help for EBV induced B cell transformation.