Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort

We compared different antineutrophil cytoplasmic antibody (ANCA) detection methods using a predominantly myeloperoxidase (MPO)-ANCA-associated vasculitis cohort. Stored sera from 147 patients with untreated ANCA-associated vasculitis (AAV), including microscopic polyangiitis and granulomatosis with...

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Main Authors: Yasuhiro Katsumata, Ken-ei Sada, Tomohiro Kameda, Hiroaki Dobashi, Shinya Kaname, Naotake Tsuboi, Yoshinori Matsumoto, Koichi Amano, Naoto Tamura, Masayoshi Harigai
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Language:English
Published: Taylor & Francis Group 2025-01-01
Series:Immunological Medicine
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Online Access:https://www.tandfonline.com/doi/10.1080/25785826.2024.2408054
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author Yasuhiro Katsumata
Ken-ei Sada
Tomohiro Kameda
Hiroaki Dobashi
Shinya Kaname
Naotake Tsuboi
Yoshinori Matsumoto
Koichi Amano
Naoto Tamura
Masayoshi Harigai
author_facet Yasuhiro Katsumata
Ken-ei Sada
Tomohiro Kameda
Hiroaki Dobashi
Shinya Kaname
Naotake Tsuboi
Yoshinori Matsumoto
Koichi Amano
Naoto Tamura
Masayoshi Harigai
author_sort Yasuhiro Katsumata
collection DOAJ
description We compared different antineutrophil cytoplasmic antibody (ANCA) detection methods using a predominantly myeloperoxidase (MPO)-ANCA-associated vasculitis cohort. Stored sera from 147 patients with untreated ANCA-associated vasculitis (AAV), including microscopic polyangiitis and granulomatosis with polyangiitis (n = 115 and 32, respectively), and 124 disease controls were tested for P-ANCA and C-ANCA with immunofluorescence (IIF), and for MPO-ANCA and proteinase 3 (PR3)-ANCA with different antigen-specific immunoassays: direct enzyme-linked immunosorbent assay (ELISA), chemiluminescent enzyme immunoassay (CLEIA), third-generation fluorescent enzyme immunoassay (FEIA), and latex turbidimetrical immunoassay (LTIA). In addition, MPO-ANCA and PR3-ANCA titers were calibrated using certified reference materials (CRMs). The sensitivities and specificities for AAV diagnoses were 95% and 94% (IIF), 86% and 98% (ELISA), 93% and 94% (CLEIA), 92% and 96% (FEIA), and 68% and 88% (LTIA). Dual IIF/antigen-specific immunoassay testing reduced diagnostic accuracies from 94% to 93%. The quantitative agreement between ANCA levels measured using CLEIA and FEIA and calibrated using CRMs was not good. In conclusion, this study demonstrated the high performance of antigen-specific immunoassays for AAV diagnosis in a predominantly MPO-ANCA-associated vasculitis cohort and suggested that the benefit of dual IIF/antigen-specific immunoassay testing is limited. Standardizing ANCA measurements using different immunoassays was difficult, even when using CRMs.
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spelling doaj-art-91541eea9fec47289935e5fbc7af9da42025-08-20T03:12:51ZengTaylor & Francis GroupImmunological Medicine2578-58262025-01-01481475710.1080/25785826.2024.2408054Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohortYasuhiro Katsumata0Ken-ei Sada1Tomohiro Kameda2Hiroaki Dobashi3Shinya Kaname4Naotake Tsuboi5Yoshinori Matsumoto6Koichi Amano7Naoto Tamura8Masayoshi Harigai9Division of Rheumatology, Department of Internal Medicine, Tokyo Women’s Medical University School of Medicine, Tokyo, JapanDepartment of Clinical Epidemiology, Kochi Medical School, Nankoku, JapanDepartment of Rheumatology, Takamatsu Red Cross Hospital, Kagawa, JapanDivision of Hematology, Rheumatology and Respiratory Medicine, Department of Internal Medicine, Faculty of Medicine, Kagawa University, Kagawa, JapanDepartment of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, JapanDepartment of Nephrology, Fujita Health University School of Medicine, Toyoake, JapanDepartment of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, JapanDepartment of Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, Kawagoe, JapanDepartment of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, JapanDivision of Rheumatology, Department of Internal Medicine, Tokyo Women’s Medical University School of Medicine, Tokyo, JapanWe compared different antineutrophil cytoplasmic antibody (ANCA) detection methods using a predominantly myeloperoxidase (MPO)-ANCA-associated vasculitis cohort. Stored sera from 147 patients with untreated ANCA-associated vasculitis (AAV), including microscopic polyangiitis and granulomatosis with polyangiitis (n = 115 and 32, respectively), and 124 disease controls were tested for P-ANCA and C-ANCA with immunofluorescence (IIF), and for MPO-ANCA and proteinase 3 (PR3)-ANCA with different antigen-specific immunoassays: direct enzyme-linked immunosorbent assay (ELISA), chemiluminescent enzyme immunoassay (CLEIA), third-generation fluorescent enzyme immunoassay (FEIA), and latex turbidimetrical immunoassay (LTIA). In addition, MPO-ANCA and PR3-ANCA titers were calibrated using certified reference materials (CRMs). The sensitivities and specificities for AAV diagnoses were 95% and 94% (IIF), 86% and 98% (ELISA), 93% and 94% (CLEIA), 92% and 96% (FEIA), and 68% and 88% (LTIA). Dual IIF/antigen-specific immunoassay testing reduced diagnostic accuracies from 94% to 93%. The quantitative agreement between ANCA levels measured using CLEIA and FEIA and calibrated using CRMs was not good. In conclusion, this study demonstrated the high performance of antigen-specific immunoassays for AAV diagnosis in a predominantly MPO-ANCA-associated vasculitis cohort and suggested that the benefit of dual IIF/antigen-specific immunoassay testing is limited. Standardizing ANCA measurements using different immunoassays was difficult, even when using CRMs.https://www.tandfonline.com/doi/10.1080/25785826.2024.2408054Antineutrophil cytoplasm antibodymicroscopic polyangiitisgranulomatosis with polyangiitislaboratory diagnosis
spellingShingle Yasuhiro Katsumata
Ken-ei Sada
Tomohiro Kameda
Hiroaki Dobashi
Shinya Kaname
Naotake Tsuboi
Yoshinori Matsumoto
Koichi Amano
Naoto Tamura
Masayoshi Harigai
Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort
Immunological Medicine
Antineutrophil cytoplasm antibody
microscopic polyangiitis
granulomatosis with polyangiitis
laboratory diagnosis
title Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort
title_full Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort
title_fullStr Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort
title_full_unstemmed Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort
title_short Comparison of different ANCA detection methods in a predominantly MPO-ANCA-associated vasculitis cohort
title_sort comparison of different anca detection methods in a predominantly mpo anca associated vasculitis cohort
topic Antineutrophil cytoplasm antibody
microscopic polyangiitis
granulomatosis with polyangiitis
laboratory diagnosis
url https://www.tandfonline.com/doi/10.1080/25785826.2024.2408054
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