title: Expression of classical HLA class I molecules: regulation and clinical impacts: Julia Bodmer Award Review 2015.
abstract: Human leukocyte antigen (HLA) class I genes are ubiquitously expressed, but in a tissue specific-manner. Their expression is primarily regulated at the transcriptional level and can be modulated both positively and negatively by different stimuli. Advances in sequencing technologies led to the identification of new regulatory variants located in the untranslated regions (UTRs), which could influence the expression. After a brief description of the mechanisms underlying the transcriptional regulation of HLA class I genes expression, we will review how the expression levels of HLA class I genes could affect biological and pathological processes. Then, we will discuss on the differential expression of HLA class I genes according to the locus, allele and UTR polymorphisms and its clinical impact. This interesting field of study led to a new dimension of HLA typing, going beyond a qualitative aspect.
authors.affiliation: Department of Immunology, CHRU de Montpellier, University Hospital Saint-Eloi, Montpellier, France.|Faculté de Médecine, University of Montpellier, Montpellier, France.|INSERM U1183, Institute for Regenerative Medicine and Biotherapy (IRMB), CHU Montpellier, Montpellier, France.
authors.forename: C
authors.initials: C
authors.lastname: René
authors.affiliation: Department of Immunology, CHRU de Montpellier, University Hospital Saint-Eloi, Montpellier, France.
authors.forename: C
authors.initials: C
authors.lastname: Lozano
authors.affiliation: Department of Immunology, CHRU de Montpellier, University Hospital Saint-Eloi, Montpellier, France.|Faculté de Médecine, University of Montpellier, Montpellier, France.|INSERM U1194, IRCM, University of Montpellier, Montpellier, France.
authors.forename: J-F
authors.initials: JF
authors.lastname: Eliaou
mesh_terms: D000483:Alleles; D001363:Awards and Prizes; D005786:Gene Expression Regulation; D056426:Genetic Loci; D015395:Histocompatibility Antigens Class I / Q000235:genetics / Q000378:metabolism*; D006801:Humans; D008954:Models, Biological
chemical_list: D015395:Histocompatibility Antigens Class I
keywords: allele; expression; major histocompatibility complex class I; polymorphism; transplantation