PMID- 25095542 OWN - NLM STAT- MEDLINE DCOM- 20140909 LR - 20231213 IS - 0890-9016 (Print) IS - 0890-9016 (Linking) DP - 2013 TI - The non-classical antigens of HLA-G and HLA-E as diagnostic and prognostic biomarkers and as therapeutic targets in transplantation and tumors. PG - 465-72 AB - The non-classical human leukocyte antigen (HLA) class I antigen HLA-G represents a tolerogenic molecule and is involved in the inhibition of natural killer cell and cytotoxic T lymphocyte-mediated cytotoxicity. Under physiological conditions, HLA-G expression is mainly restricted to immune-privileged tissues, whereas it is overexpressed in tumors and transplants as well as in virus-infected cells. Due to its immunosuppressive features, HLA-G is important for pregnancy or organ transplantation and autoimmune diseases as well as cancer immune escape. This review focusses on the expression, regulation, and function of HLA-G in tumor cells andlor in transplants as well as therapeutic tools for enhancing (transplantation) or avoiding (tumor) tolerance. Thus, HLA-G or HLA-G-derived synthetic molecules might be used as therapeutic agents in combination with immunosuppressive drugs to enhance organ tolerance upon transplantation. In addition, HLA-G neoexpressing tumor cells could be targeted by HLA-G-specific microRNAs in order to enhance tumor immunogenicity. FAU - Seliger, Barbara AU - Seliger B LA - eng PT - Journal Article PT - Review PL - United States TA - Clin Transpl JT - Clinical transplants JID - 8812419 RN - 0 (Biomarkers) RN - 0 (HLA-G Antigens) RN - 0 (Histocompatibility Antigens Class I) SB - IM MH - Biomarkers MH - HLA-G Antigens/*immunology MH - Histocompatibility Antigens Class I/*immunology MH - Humans MH - Neoplasms/*immunology/therapy MH - Prognosis MH - Transplantation Immunology/*immunology MH - HLA-E Antigens EDAT- 2013/01/01 00:00 MHDA- 2014/09/10 06:00 CRDT- 2014/08/07 06:00 PHST- 2014/08/07 06:00 [entrez] PHST- 2013/01/01 00:00 [pubmed] PHST- 2014/09/10 06:00 [medline] PST - ppublish SO - Clin Transpl. 2013:465-72.