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  • Dieckmann, RegisGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research,University of Gothenburg (author)

Antieosinophil Antibodies Alone or in Combination with Antineutrophil Cytoplasmic Antibodies (ANCA) Detected in Different Autoimmune Conditions

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/327604
  • https://gup.ub.gu.se/publication/327604URI
  • https://doi.org/10.1155/2023/5980287DOI
  • https://research.chalmers.se/publication/535804URI

Supplementary language notes

  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Circulating antieosinophil antibodies (AEOSA) have been associated with various autoimmune conditions affecting the liver, kidneys, lungs, and joints but are not part of routine clinical diagnostics. While analyzing human sera for antineutrophil cytoplasmic antibodies (ANCA) by indirect immunofluorescence (IIF) on granulocytes, 0.8% of analyzed samples were found to be reactive with eosinophils. Our aim was to determine the diagnostic relevance and antigenic specificity of AEOSA. AEOSA were seen either in combination with an myeloperoxidase (MPO)-positive p-ANCA (44%; AEOSA+/ANCA+) or on their own (56%; AEOSA+/ANCA-). AEOSA/ANCA positivity was seen in patients with thyroid disease (44%) or vasculitis (31%), while AEOSA+/ANCA- pattern was more common in patients with autoimmune disorders of the gastrointestinal tract and/or liver. Eosinophil peroxidase (EPX) was the main target recognized in 66% of the AEOSA+ sera by enzyme-linked immunosorbent assay (ELISA). Eosinophil cationic protein (ECP) and eosinophil-derived neurotoxin (EDN) were also identified as target antigens but less frequently and only in combination with EPX. In conclusion, we confirmed that EPX is a major target of AEOSA, illustrating the high antigenic potential of EPX. Our results also demonstrate the presence of concomitant AEOSA/ANCA positivity in a defined patient group. Further research should aim to elucidate the association of AEOSA with autoimmunity.

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  • Pullerits, Rille,1969Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research,Sahlgrenska universitetssjukhuset,Sahlgrenska University Hospital,University of Gothenburg(Swepub:gu)xpulri (author)
  • Bylund, Johan,1975Gothenburg University,Göteborgs universitet,Institutionen för odontologi,Institute of Odontology,University of Gothenburg(Swepub:gu)xbyljo (author)
  • Karlsson-Bengtsson, AnnaGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research,Chalmers tekniska högskola,Chalmers University of Technology,University of Gothenburg(Swepub:cth)ankarls (author)
  • Herlitz, Hans,1946Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för molekylär och klinisk medicin,Institute of Medicine, Department of Molecular and Clinical Medicine,University of Gothenburg(Swepub:gu)xherha (author)
  • Wennerås, Christine,1963Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för infektionssjukdomar,Institute of Biomedicine, Department of Infectious Medicine,University of Gothenburg,Sahlgrenska universitetssjukhuset,Sahlgrenska University Hospital(Swepub:gu)xwennc (author)
  • Thulin, PontusSahlgrenska universitetssjukhuset,Sahlgrenska University Hospital (author)
  • Göteborgs universitetInstitutionen för medicin, avdelningen för reumatologi och inflammationsforskning (creator_code:org_t)

Related titles

  • In:Journal of Immunology Research20232314-88612314-7156

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