PMID- 32297471 OWN - NLM STAT- MEDLINE DCOM- 20210608 LR - 20210608 IS - 1756-185X (Electronic) IS - 1756-1841 (Linking) VI - 23 IP - 7 DP - 2020 Jul TI - Distinct HLA and non-HLA associations in different subtypes of ANCA-associated vasculitides in North India. PG - 958-965 LID - 10.1111/1756-185X.13837 [doi] AB - AIM: Antineutrophil cytoplasmic antibody-associated vasculitis (AAV) is an autoimmune disease characterized by necrotizing small vessel vasculitis that can affect various organs and present multiple symptoms. Susceptibility to AAV is multifactorial and most likely caused by an amalgamation of genetic and environmental factors. The aim of the present study was to explore the distribution of human leukocyte antigen (HLA)-DRB1/DQB1, protein tyrosine phosphatase non-receptor type 22 (PTPN22) and cytotoxic T-Lymphocyte-associated protein 4 (CTLA-4) polymorphisms in North Indian AAV patients and their associations with clinical and pathological characteristics associated with the disease. METHODS: A total of 150 AAV patients and 150 healthy controls were recruited. The clinical classification showed 128 as granulomatosis with polyangiitis (GPA) and 21 as microscopic polyangiitis. Only 1 case of eosinophilic granulomatosis with polyangiitis was encountered, which was excluded from analysis. HLA-DRB1/DQB1 alleles were determined by polymerase chain reaction-sequence-specific primer (PCR-SSP) method and single nucleotide variant genotyping for CTLA-4 and PTPN22 was done by simple probe-based SNP arrays. RESULTS: A significant predispositional association of DRB1*03 and DQB1*02 alleles, were confirmed in proteinase 3 (PR3)-AAV patients, whereas DRB1*10, DRB1*14 and DQB1*05 were protective alleles in AAV, PR3-AAV and GPA patients. GG genotype of CTLA-4 + 49A/G was increased in patients as compared to controls and showed an association with AAV, PR3-AAV and GPA patients. CONCLUSION: The study indicated strong genetic associations were linked with PR3 antineutrophil cytoplasmic antibody specificity and it appears that PR3-AAV and MPO-AAV have distinct genetic backgrounds. CI - (c) 2020 Asia Pacific League of Associations for Rheumatology and John Wiley & Sons Australia, Ltd. FAU - Singh, Jagdeep AU - Singh J AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Sharma, Aman AU - Sharma A AUID- ORCID: 0000-0003-0813-1243 AD - Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Rani, Lekha AU - Rani L AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Kaur, Navchetan AU - Kaur N AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Anand, Shashi AU - Anand S AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Saikia, Biman AU - Saikia B AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Jha, Saket AU - Jha S AD - Department of Internal Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Nada, Ritambhra AU - Nada R AD - Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. FAU - Minz, Ranjana Walker AU - Minz RW AUID- ORCID: 0000-0003-1304-542X AD - Department of Immunopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India. LA - eng GR - 61/4/2009-BMS/Indian Council of Medical Research/ PT - Comparative Study PT - Journal Article DEP - 20200416 PL - England TA - Int J Rheum Dis JT - International journal of rheumatic diseases JID - 101474930 RN - 0 (Antibodies, Antineutrophil Cytoplasmic) RN - 0 (CTLA-4 Antigen) RN - 0 (CTLA4 protein, human) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DRB1 Chains) RN - EC 1.11.1.7 (MPO protein, human) RN - EC 1.11.1.7 (Peroxidase) RN - EC 3.1.3.48 (PTPN22 protein, human) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatase, Non-Receptor Type 22) RN - EC 3.4.21.76 (Myeloblastin) SB - IM MH - Adult MH - Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis/*genetics/immunology MH - Antibodies, Antineutrophil Cytoplasmic/blood MH - CTLA-4 Antigen/*genetics MH - Case-Control Studies MH - Female MH - Genetic Association Studies MH - Genetic Predisposition to Disease MH - HLA-DQ beta-Chains/*genetics MH - HLA-DRB1 Chains/*genetics MH - Humans MH - India MH - Male MH - Middle Aged MH - Myeloblastin/immunology MH - Peroxidase/immunology MH - Phenotype MH - *Polymorphism, Single Nucleotide MH - Protein Tyrosine Phosphatase, Non-Receptor Type 22/*genetics OTO - NOTNLM OT - ANCA-associated vasculitis OT - granulomatosis with polyangiitis OT - microscopic polyangiitis OT - myeloperoxidase OT - proteinase 3 EDAT- 2020/04/17 06:00 MHDA- 2021/06/09 06:00 CRDT- 2020/04/17 06:00 PHST- 2019/11/22 00:00 [received] PHST- 2020/02/07 00:00 [revised] PHST- 2020/03/22 00:00 [accepted] PHST- 2020/04/17 06:00 [pubmed] PHST- 2021/06/09 06:00 [medline] PHST- 2020/04/17 06:00 [entrez] AID - 10.1111/1756-185X.13837 [doi] PST - ppublish SO - Int J Rheum Dis. 2020 Jul;23(7):958-965. doi: 10.1111/1756-185X.13837. Epub 2020 Apr 16.