期刊
FRONTIERS IN IMMUNOLOGY
卷 4, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2013.00508
关键词
NK cells; stress; DNA damage response; NKG2D ligands; DNAM-1 ligands
类别
资金
- Italian Ministry of Health
- Italian Ministry of University and Research (MIUR/PRIN)
- Italian Association for Cancer Research (AIRC)
- AIRC 5x1000
- Sapienza University of Rome
- Italian 5x1000
- Ricerca Finalizzata and Ricerca Corrente
NKG2D and DNAM-1 are two activating receptors, present on the surface of NK cells and other cells of the immune system. Their ligands MICA, MICB, ULBP1-6 for NKG2D, PVR/CD155 and Nectin-2/CD112 for DNAM-1 can be constitutively expressed at low levels in some normal cells, but they are more often defined as stress-induced, since different stimuli can positively regulate their expression. In this review, we describe the molecular mechanisms involved in the up-regulation of NKG2D and DNAM-1 ligands under different physiological and pathological stress conditions, including mitosis, viral infections, and cancer. We will focus on the DNA damage response, as recent advances in the field have uncovered its important role as a common signaling pathway in the regulation of both NKG2D and DNAM-1 ligand expression in response to very diverse conditions and stimuli.
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