PMID- 31511551 OWN - NLM STAT- MEDLINE DCOM- 20201028 LR - 20221207 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 9 IP - 1 DP - 2019 Sep 11 TI - Exome Sequencing Reveals Immune Genes as Susceptibility Modifiers in Individuals with alpha(1)-Antitrypsin Deficiency. PG - 13088 LID - 10.1038/s41598-019-49409-1 [doi] LID - 13088 AB - Alpha-1 antitrypsin deficiency (AATD) is a genetic disorder associated to early onset emphysema, mainly imputable to Pi*ZZ genotype. In spite of the serious potential effects, many AATD individuals do not develop emphysema. To identify genes/variants potentially involved in emphysema development we studied 4 AATD families. Each family had at least one affected sibling with emphysema and one non-affected. Whole Exome Sequencing (WES) was performed on genomic DNA isolated from 9 individuals with AATD (4 affected/5 non-affected). Genetic variants confirmed at least in three families were prioritized using QueryOR and network analysis was used to verify enriched pathways. In affected subjects: 14 genes (57% immune-related) segregated in a recessive model and 21 (29% immune-related) in a dominant model. In non-affected subjects: 21 genes (43% immune-related) segregated in a recessive model and 50 (24% immune-related) in a dominant model. In affected siblings immune genes had an activating function, while where immune-suppressing in non-affected siblings involving antigen processing, MHC-I presentation, TCR and PD-1 signalling. This study describes possible genetic susceptibility factors for emphysema development in AATD, and suggests that gene variants involved in regulation of immune homeostasis and maintenance of self-tolerance contribute to the development or suppression of the disease. FAU - Rigobello, Chiara AU - Rigobello C AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Baraldo, Simonetta AU - Baraldo S AUID- ORCID: 0000-0001-8923-7511 AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Tine, Mariaenrica AU - Tine M AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Ferrarotti, Ilaria AU - Ferrarotti I AD - Center for Diagnosis of Inherited Alpha 1-antitrypsin Deficiency, Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy. FAU - Corsico, Angelo Guido AU - Corsico AG AD - Center for Diagnosis of Inherited Alpha 1-antitrypsin Deficiency, Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy. AD - Division of Respiratory Diseases, IRCCS Policlinico San Matteo Foundation, Pavia, Italy. FAU - Bazzan, Erica AU - Bazzan E AUID- ORCID: 0000-0003-2956-0880 AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Turato, Graziella AU - Turato G AUID- ORCID: 0000-0003-1895-6388 AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Balestro, Elisabetta AU - Balestro E AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Biondini, Davide AU - Biondini D AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. FAU - Valle, Giorgio AU - Valle G AD - CRIBI Biotechnology Center, University of Padova, Padova, Italy. FAU - Saetta, Marina AU - Saetta M AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. marina.saetta@unipd.it. FAU - Cosio, Manuel G AU - Cosio MG AD - Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy. AD - Meakins-Christie Laboratories, Respiratory Division, McGill University, Montreal, Canada. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190911 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 SB - IM MH - Adult MH - Aged MH - Female MH - Genetic Predisposition to Disease/*genetics MH - Humans MH - Male MH - Middle Aged MH - Molecular Sequence Annotation MH - *Exome Sequencing MH - alpha 1-Antitrypsin Deficiency/*genetics/*immunology PMC - PMC6739380 COIS- M.S. has received unrestricted research grants from Takeda Ltd, Chiesi Farmaceutici, Laboratori Guidotti Spa, outside this specific study. EDAT- 2019/09/13 06:00 MHDA- 2020/10/29 06:00 PMCR- 2019/09/11 CRDT- 2019/09/13 06:00 PHST- 2019/05/24 00:00 [received] PHST- 2019/08/23 00:00 [accepted] PHST- 2019/09/13 06:00 [entrez] PHST- 2019/09/13 06:00 [pubmed] PHST- 2020/10/29 06:00 [medline] PHST- 2019/09/11 00:00 [pmc-release] AID - 10.1038/s41598-019-49409-1 [pii] AID - 49409 [pii] AID - 10.1038/s41598-019-49409-1 [doi] PST - epublish SO - Sci Rep. 2019 Sep 11;9(1):13088. doi: 10.1038/s41598-019-49409-1.