PMID- 33031918 OWN - NLM STAT- MEDLINE DCOM- 20210104 LR - 20221221 IS - 1090-2139 (Electronic) IS - 0889-1591 (Print) IS - 0889-1591 (Linking) VI - 91 DP - 2021 Jan TI - Understanding the genetic contribution of the human leukocyte antigen system to common major psychiatric disorders in a world pandemic context. PG - 731-739 LID - S0889-1591(20)31108-9 [pii] LID - 10.1016/j.bbi.2020.09.033 [doi] AB - The human leukocyte antigen (HLA) is a complex genetic system that encodes proteins which predominantly regulate immune/inflammatory processes. It can be involved in a variety of immuno-inflammatory disorders ranging from infections to autoimmunity and cancers. The HLA system is also suggested to be involved in neurodevelopment and neuroplasticity, especially through microglia regulation and synaptic pruning. Consequently, this highly polymorphic gene region has recently emerged as a major player in the etiology of several major psychiatric disorders, such as schizophrenia, autism spectrum disorder and bipolar disorder and with less evidence for major depressive disorders and attention deficit hyperactivity disorder. We thus review here the role of HLA genes in particular subgroups of psychiatric disorders and foresee their potential implication in future research. In particular, given the prominent role that the HLA system plays in the regulation of viral infection, this review is particularly timely in the context of the Covid-19 pandemic. CI - Copyright (c) 2020 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Tamouza, Ryad AU - Tamouza R AD - Universite Paris Est Creteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie Translationnelle, F-94010 Creteil, France; AP-HP, Hopital Henri Mondor, Departement Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), F-94010, France; Fondation FondaMental, Creteil, France. Electronic address: tamouza.ryad@gmail.com. FAU - Krishnamoorthy, Rajagopal AU - Krishnamoorthy R AD - Fondation FondaMental, Creteil, France. FAU - Leboyer, Marion AU - Leboyer M AD - Universite Paris Est Creteil, INSERM U955, IMRB, Laboratoire Neuro-Psychiatrie Translationnelle, F-94010 Creteil, France; AP-HP, Hopital Henri Mondor, Departement Medico-Universitaire de Psychiatrie et d'Addictologie (DMU ADAPT), F-94010, France; Fondation FondaMental, Creteil, France. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20201005 PL - Netherlands TA - Brain Behav Immun JT - Brain, behavior, and immunity JID - 8800478 RN - 0 (HLA Antigens) SB - IM MH - Autism Spectrum Disorder/genetics MH - Bipolar Disorder/genetics MH - COVID-19/psychology MH - Genetic Predisposition to Disease/genetics MH - HLA Antigens/*genetics/metabolism MH - Haplotypes/genetics MH - Humans MH - Mental Disorders/epidemiology/*genetics MH - Pandemics MH - Polymorphism, Genetic/genetics MH - SARS-CoV-2/pathogenicity MH - Schizophrenia/genetics MH - Virus Diseases/genetics/immunology/*psychology PMC - PMC7534661 OTO - NOTNLM OT - Ancestral Haplotypes (AH) OT - Human Leukocyte Antigen (HLA) OT - Immunogenetics OT - Major psychiatric disorders COIS- The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/10/09 06:00 MHDA- 2021/01/05 06:00 PMCR- 2020/10/05 CRDT- 2020/10/08 20:10 PHST- 2020/05/26 00:00 [received] PHST- 2020/09/01 00:00 [revised] PHST- 2020/09/30 00:00 [accepted] PHST- 2020/10/09 06:00 [pubmed] PHST- 2021/01/05 06:00 [medline] PHST- 2020/10/08 20:10 [entrez] PHST- 2020/10/05 00:00 [pmc-release] AID - S0889-1591(20)31108-9 [pii] AID - 10.1016/j.bbi.2020.09.033 [doi] PST - ppublish SO - Brain Behav Immun. 2021 Jan;91:731-739. doi: 10.1016/j.bbi.2020.09.033. Epub 2020 Oct 5.