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. 2021 Oct 16;13(20):5189. doi: 10.3390/cancers13205189

Table 6.

Immune escape mechanisms and EBV-encoded gene products involved.

Component Gene Product Mechanism Reference
HLA class I BGLF5 degradation of HLA class I [235,245]
BNLF2a inhibition of peptide transport by blocking [233,240,241]
BILF1 impaired HLA class I export
increased turnover of HLA class I surface molecules
[234,237,238,275]
BCRF1 (vIL-10) inhibition of HLA class I [251]
EBNA1 disruption of peptide generation and transport [239]
EBNA2 inhibition of peptide generation and presentation [243]
HLA class II gp42 (BZLF2) block of TCR/HLA class II interaction [246,247]
BGLF5 degradation of HLA class II [245]
Zta inhibition of CIITA promoter activity,
posttranscriptional regulation by impairing function of the invariant chain
[248]
BCRF1 (vIL-10) inhibition of HLA class II expression [276]
Checkpoints LMP1 induction of soluble PD-L1 [277]
TLR/NF-ĸB
pathway
BGLF5 downregulation of TLR-2 and -9 [245]
BZLF1 inhibition of NF-ĸB [278]
BGLF4 suppression of NF-ĸB activity [279]
BPLF1 inhibition of NF-ĸB
activation by reversion of ubiquitination of TLR signaling
[280,281]
EBNA1 inhibition of NF-ĸB [282]
LMP1 reduction of TLR-9 [283]
LMP2 inhibition of NF-ĸB [284]
IRFs/IFN type I signaling BZLF1 inhibition of IRF7 transcriptional activity; reduction of IFN-ƴ receptor [271,285]
BILF4 inhibition of IRF7 [286]
BGLF4 inhibition of IRF3 [287]
BRLF1 reduction of IRF3 and IRF7 expression [288]
EBNA1 modulation of STAT1 signaling [289]
EBNA-2 inhibition of ISGs [290,291]
LMP-1 regulation of STAT1 [292]
LMP-2a inhibition of JAK/STAT signaling, acceleration of IFN receptor turnover [293]
LMP-2b acceleration of IFN receptor degradation [293]