AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report

Here we reported two anti-Mi-2 autoantibody-positive dermatomyositis (DM) patients with a characteristic antinuclear antibody (ANA) immunofluorescence pattern. Autoantibodes were screened by indirect immunofluorescence (IIF) on HEp-2 cells (Euroimmun, Lübeck, Germany) and confirmed by line immunoblo...

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Main Authors: Ziyan Wu, Honglin Xu, Shulan Zhang
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-03-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2022.857030/full
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author Ziyan Wu
Honglin Xu
Shulan Zhang
author_facet Ziyan Wu
Honglin Xu
Shulan Zhang
author_sort Ziyan Wu
collection DOAJ
description Here we reported two anti-Mi-2 autoantibody-positive dermatomyositis (DM) patients with a characteristic antinuclear antibody (ANA) immunofluorescence pattern. Autoantibodes were screened by indirect immunofluorescence (IIF) on HEp-2 cells (Euroimmun, Lübeck, Germany) and confirmed by line immunoblot (ANA Profile 3—Euroimmun, Germany). These two patients were positive for ANA (speckled, titer 1:320), followed by confirmation of positive anti-Mi-2α and anti-Mi-2β positive and negative for all other antibodies. We found a characteristic ANA pattern of the anti-Mi-2 antibody that differed from the AC-4 pattern, especially in the morphology of mitotic cells (metaphase, anaphase, and telophase). Thus, we would like to suggest reporting this characteristic antinuclear antibody pattern as a new AC type, as AC-X.
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spelling doaj.art-16dd35f8dc1544cea0809d7ac55e87b92022-12-21T23:40:37ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-03-011310.3389/fimmu.2022.857030857030AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case ReportZiyan WuHonglin XuShulan ZhangHere we reported two anti-Mi-2 autoantibody-positive dermatomyositis (DM) patients with a characteristic antinuclear antibody (ANA) immunofluorescence pattern. Autoantibodes were screened by indirect immunofluorescence (IIF) on HEp-2 cells (Euroimmun, Lübeck, Germany) and confirmed by line immunoblot (ANA Profile 3—Euroimmun, Germany). These two patients were positive for ANA (speckled, titer 1:320), followed by confirmation of positive anti-Mi-2α and anti-Mi-2β positive and negative for all other antibodies. We found a characteristic ANA pattern of the anti-Mi-2 antibody that differed from the AC-4 pattern, especially in the morphology of mitotic cells (metaphase, anaphase, and telophase). Thus, we would like to suggest reporting this characteristic antinuclear antibody pattern as a new AC type, as AC-X.https://www.frontiersin.org/articles/10.3389/fimmu.2022.857030/fullanti-Mi-2 autoantibodydermatomyositisantinuclear antibody patternsAC-Xclinical routine
spellingShingle Ziyan Wu
Honglin Xu
Shulan Zhang
AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report
Frontiers in Immunology
anti-Mi-2 autoantibody
dermatomyositis
antinuclear antibody patterns
AC-X
clinical routine
title AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report
title_full AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report
title_fullStr AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report
title_full_unstemmed AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report
title_short AC-X: Characteristic Antinuclear Antibody Patterns of Two Anti-Mi-2 Autoantibody-Positive Dermatomyositis Patients—A Case Report
title_sort ac x characteristic antinuclear antibody patterns of two anti mi 2 autoantibody positive dermatomyositis patients a case report
topic anti-Mi-2 autoantibody
dermatomyositis
antinuclear antibody patterns
AC-X
clinical routine
url https://www.frontiersin.org/articles/10.3389/fimmu.2022.857030/full
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AT honglinxu acxcharacteristicantinuclearantibodypatternsoftwoantimi2autoantibodypositivedermatomyositispatientsacasereport
AT shulanzhang acxcharacteristicantinuclearantibodypatternsoftwoantimi2autoantibodypositivedermatomyositispatientsacasereport