Table 1 Targets and functions of the viral components involved in immune evasion during MD infection

From: Immune escape of avian oncogenic Marek’s disease herpesvirus and antagonistic host immune responses

Category

Viral components

Viral/host targets

Potential role and functions

Refs.

Modulation of MHC

MDV012

TAP

downregulation of MHC-I molecules expressions

29

pUL.49.5

TAP

downregulation of MHC-I molecules expressions

30

UD

UD

upregulation of MHC-II molecules expressions

32

UD

IFN-γ-receptor complex

downregulation of MHC-II molecules expressions

33

Promote latency

meq

Bcl-2

inhibits infected cells apoptosis

34

pp38-pp24

prevents viral DNA replication and productive infection

35

vTR

chTERT

inhibits infected cells apoptosis

38

miR-M7-5p

ICP4/ICP27

prevents viral DNA replication

39

miR-M4-5p

UL28

prevents viral DNA replication

42

JARID2

promote infected cells survival

71

miR-M4-3p

UL32

prevents viral DNA replication

42

miR-M5-3p

ICP22

prevents viral DNA replication

40

UD

IKFZ1

maintenance of the latency

44

Telomeric integration

mTMR

/

facilitates viral genome integration

48

sTMR

/

facilitates viral genome integration

49

vTR

chTERT

participates in MDV integration

37

Meq

c-Myc

participates in MDV integration

51,52

VP22

UD

induces DNA lesions

54,55

  1. MHC Major histocompatibility complex, MDV012 MDV gene MDV012, TAP Transporter associated with antigen presentation, pUL.49.5, MDV UL49.5 gene, Meq MDV EcoRI-Q, Bcl-2 B-cell lymphoma-2, pp38 phosphoprotein 38, pp24 Phosphoprotein 24, vTR Viral telomerase RNA, chTERT Chicken telomerase reverse transcriptase, ICP4 Infected cell protein 4, ICP27 Infected cell protein 27, UL28 Unique long gene 28, JARID2 Jumonji, AT rich interactive domain 2, UL32 Unique long gene 32, ICP22 Infected cell protein 22, IKFZ1 Ikaros, mTMR Multiple telomeric repeats, sTMR Short telomeric repeats, c-Myc MYC proto-oncogene, VP22 capsid protein VP22.