PMID- 26099424 OWN - NLM STAT- MEDLINE DCOM- 20151217 LR - 20150910 IS - 1365-3083 (Electronic) IS - 0300-9475 (Linking) VI - 82 IP - 4 DP - 2015 Oct TI - Clinical Role of Human Leukocyte Antigen in Health and Disease. PG - 283-306 LID - 10.1111/sji.12329 [doi] AB - Most of the genes in the major histocompatibility complex (MHC) region express high polymorphism that is fundamental for their function. The most important function of human leukocyte antigen (HLA) molecule is in the induction, regulation of immune responses and the selection of the T cell repertoire. A clinician's attention is normally drawn to a system only when it malfunctions. The HLA system is no exception in this regard, but in contrast to other systems, it also arouses interest when it functions well - too well, in fact. Population studies carried out over the last several decades have identified a long list of human diseases that are significantly more common among individuals that carry particular HLA alleles including inflammatory, autoimmune and malignant disorders. HLA-disease association is the name of this phenomenon, and the mechanism underlying is still a subject of hot debate. Social behaviours are affected by HLA genes and preference for HLA disparate mates may provide 'good genes' for an individual's offspring. Also, certain HLA genes may be associated with shorter life and others with longer lifespan, but the effects depend both on the genetic background and on the environmental conditions. The following is a general overview of the important functional aspects of HLA in health and diseases. CI - (c) 2015 The Foundation for the Scandinavian Journal of Immunology. FAU - Mosaad, Y M AU - Mosaad YM AD - Clinical Immunology Unit, Clinical Pathology Department & Mansoura Research Center for Cord Stem Cell (MARC_CSC), Mansoura Faculty of Medicine, Mansoura University, Mansoura, Egypt. LA - eng PT - Journal Article PT - Review PL - England TA - Scand J Immunol JT - Scandinavian journal of immunology JID - 0323767 RN - 0 (HLA Antigens) SB - IM MH - Alleles MH - Antigen-Presenting Cells/immunology MH - Autoimmune Diseases/genetics/immunology MH - Dendritic Cells/immunology MH - *Genes, MHC Class I MH - *Genes, MHC Class II MH - HLA Antigens/genetics/*immunology MH - Humans MH - T-Lymphocytes/immunology MH - Transplantation Immunology/genetics/immunology EDAT- 2015/06/24 06:00 MHDA- 2015/12/19 06:00 CRDT- 2015/06/24 06:00 PHST- 2015/04/23 00:00 [received] PHST- 2015/06/02 00:00 [revised] PHST- 2015/06/12 00:00 [accepted] PHST- 2015/06/24 06:00 [entrez] PHST- 2015/06/24 06:00 [pubmed] PHST- 2015/12/19 06:00 [medline] AID - 10.1111/sji.12329 [doi] PST - ppublish SO - Scand J Immunol. 2015 Oct;82(4):283-306. doi: 10.1111/sji.12329.