PMID- 38031415 OWN - NLM STAT- MEDLINE DCOM- 20240123 LR - 20240310 IS - 1535-3699 (Electronic) IS - 1535-3702 (Print) IS - 1535-3699 (Linking) VI - 248 IP - 23 DP - 2023 Dec TI - Regulation of expression quantitative trait loci by SVA retrotransposons within the major histocompatibility complex. PG - 2304-2318 LID - 10.1177/15353702231209411 [doi] AB - Genomic and transcriptomic studies of expression quantitative trait loci (eQTL) revealed that SINE-VNTR-Alu (SVA) retrotransposon insertion polymorphisms (RIPs) within human genomes markedly affect the co-expression of many coding and noncoding genes by coordinated regulatory processes. This study examined the polymorphic SVA modulation of gene co-expression within the major histocompatibility complex (MHC) genomic region where more than 160 coding genes are involved in innate and adaptive immunity. We characterized the modulation of SVA RIPs utilizing the genomic and transcriptomic sequencing data obtained from whole blood of 1266 individuals in the Parkinson's Progression Markers Initiative (PPMI) cohort that included an analysis of human leukocyte antigen (HLA)-A regulation in a subpopulation of the cohort. The regulatory properties of eight SVAs located within the class I and class II MHC regions were associated with differential co-expression of 71 different genes within and 75 genes outside the MHC region. Some of the same genes were affected by two or more different SVA. Five SVA are annotated in the human genomic reference sequence GRCh38.p14/hg38, whereas the other three were novel insertions within individuals. We also examined and found distinct structural effects (long and short variants and the CT internal variants) for one of the SVA (R_SVA_24) insertions on the differential expression of the HLA-A gene within a subpopulation (550 individuals) of the PPMI cohort. This is the first time that many HLA and non-HLA genes (multilocus expression units) and splicing mechanisms have been shown to be regulated by eight structurally polymorphic SVA within the MHC genomic region by applying precise statistical analysis of RNA data derived from the blood samples of a human cohort population. This study shows that SVA within the MHC region are important regulators or rheostats of gene co-expression that might have potential roles in diversity, health, and disease. FAU - Kulski, Jerzy K AU - Kulski JK AD - Department of Molecular Life Sciences, School of Medicine, Tokai University, Isehara, Kanagawa 259-1193, Japan. AD - Health and Medical Science. Division of Immunology and Microbiology, School of Biomedical Sciences, The University of Western Australia, Nedlands, WA 6009, Australia. FAU - Pfaff, Abigail L AU - Pfaff AL AD - Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia. AD - Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, Australia. FAU - Marney, Luke D AU - Marney LD AD - Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 3BX, UK. FAU - Frohlich, Alexander AU - Frohlich A AUID- ORCID: 0000-0001-9083-7485 AD - Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 3BX, UK. FAU - Bubb, Vivien J AU - Bubb VJ AUID- ORCID: 0000-0003-2763-7004 AD - Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 3BX, UK. FAU - Quinn, John P AU - Quinn JP AD - Department of Pharmacology and Therapeutics, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 3BX, UK. FAU - Koks, Sulev AU - Koks S AUID- ORCID: 0000-0001-6087-6643 AD - Perron Institute for Neurological and Translational Science, Perth, WA 6009, Australia. AD - Centre for Molecular Medicine and Innovative Therapeutics, Murdoch University, Perth, WA 6150, Australia. LA - eng PT - Journal Article DEP - 20231130 PL - Switzerland TA - Exp Biol Med (Maywood) JT - Experimental biology and medicine (Maywood, N.J.) JID - 100973463 RN - 0 (Retroelements) SB - IM MH - Humans MH - *Retroelements/genetics MH - *Quantitative Trait Loci/genetics MH - Polymorphism, Genetic MH - Major Histocompatibility Complex/genetics PMC - PMC10903234 OTO - NOTNLM OT - HLA OT - MHC OT - SVA OT - eQTL OT - enhancers OT - multilocus expression units COIS- Declaration of conflicting interestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. EDAT- 2023/11/30 06:43 MHDA- 2024/01/23 06:43 PMCR- 2023/11/30 CRDT- 2023/11/30 03:38 PHST- 2024/01/23 06:43 [medline] PHST- 2023/11/30 06:43 [pubmed] PHST- 2023/11/30 03:38 [entrez] PHST- 2023/11/30 00:00 [pmc-release] AID - 10.1177_15353702231209411 [pii] AID - 10.1177/15353702231209411 [doi] PST - ppublish SO - Exp Biol Med (Maywood). 2023 Dec;248(23):2304-2318. doi: 10.1177/15353702231209411. Epub 2023 Nov 30.