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Front Immunol. 2011 Dec 28;2:85. doi: 10.3389/fimmu.2011.00085. eCollection 2011.

Manipulation of NKG2D ligands by cytomegaloviruses: impact on innate and adaptive immune response.

Author information

  • 1Department of Histology and Embryology, Faculty of Medicine, University of Rijeka Rijeka, Croatia.

Abstract

NKG2D is a potent activating receptor expressed on NK cells, NKT cells, γδ T cells, and CD8 T cells. NKG2D recognizes cell surface molecules structurally related to MHC class I proteins induced by infection or other type of cellular stress. The engagement of NKG2D leads to NK cell cytotoxicity and cytokine secretion or to a co-stimulation of CD8 T cells. Both human and mouse cytomegalovirus (CMV) have evolved numerous mechanisms to evade NKG2D-mediated immune response. This review describes the mechanisms used by CMV to inhibit NKG2D ligand expression and the recent advances in exploiting the NKG2D recognition pathway for mounting efficient and long-lasting immune response.

KEYWORDS:

NKG2D; cytomegalovirus; immune evasion

PMID:
22566874
PMCID:
PMC3342069
DOI:
10.3389/fimmu.2011.00085
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