Evidence map›Paper›PMID 34625914›Full record

ArticleImmunologic research2021

How to report the antinuclear antibodies (anti-cell antibodies) test on HEp-2 cells: guidelines from the ICAP initiative.

Carlos Alberto von Mühlen, Ignacio Garcia-De La Torre, Maria Infantino, Jan Damoiseaux, Luis E C Andrade, Orlando Gabriel Carballo, Karsten Conrad, Paulo Luiz Carvalho Francescantonio, Marvin J Fritzler, Manfred Herold and 6 more

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In one paragraph

Article in Immunologic research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
7.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 70 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. The Prevalence and Clinical Significance of the Centromere Protein-F-Like Immunofluorescence Staining Pattern in a Large ANA-positive Cohort.Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2026
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  8. Journal of translational autoimmunity · 2025
    Article
  9. Article
  10. Detection of autoantibodies in severe COVID-19 patients two years after hospital discharge.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2025
    Article
  11. Article
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  16. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 14 institutions in 11 countries.

Carlos Alberto von MühlenHospital Moinhos de Vento, Rheumatology Unit, Porto Alegre, Brazil. cavm49@gmail.com.
Ignacio Garcia-De La TorreDepartment of Immunology and Rheumatology, Hospital General de Occidente, Universidad de Guadalajara, Guadalajara, Mexico.
Maria InfantinoImmunology and Allergy Laboratory, San Giovanni Di Dio Hospital, Florence, Italy.
Jan DamoiseauxCentral Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands.
Luis E C AndradeRheumatology Division, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
Orlando Gabriel CarballoLaboratory of Immunology, Hospital Carlos G. Durand, Buenos Aires, Argentina.
Karsten ConradInstitute of Immunology, Technical University of Dresden, Dresden, Germany.
Paulo Luiz Carvalho FrancescantonioPontifícia Universidade Católica de Goiás, Goiânia, Brazil.
Marvin J FritzlerDepartment of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.
Manfred HeroldDepartment of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria.
Werner KlotzDepartment of Internal Medicine II, Medical University of Innsbruck, Innsbruck, Austria.
Wilson de Melo CruvinelPontifícia Universidade Católica de Goiás, Goiânia, Brazil.
Tsuneyo MimoriIjinkai Takeda General Hospital, and Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Minoru SatohDepartment of Clinical Nursing, University of Occupational and Environmental Health, Kitakyushu, Japan.
Lucile MussetDepartment of Immunology, Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Pitié-Salpêtrière, Paris, France.
Edward K L ChanDepartment of Oral Biology, University of Florida, Gainesville, FL, USA.
Pontifícia Universidade Católica de Goiás · BRUniversität Innsbruck · ATFleury S.A. (Brazil) · BRHospital Moinhos de Vento · BRInstituto Universitario Hospital Italiano · ARKyoto University · JPMaastricht University · NLNuovo Ospedale San Giovanni di Dio · ITSorbonne Université · FRTU Dresden · DEUniversidad de Guadalajara · MXUniversity of Calgary · CAUniversity of Florida · USUniversity of Occupational and Environmental Health Japan · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Results of the anti-nuclear antibodies-indirect immunofluorescence assay (anti-cell antibodies test) on HEp-2 cell substrates should be communicated to clinicians in a standardized way, adding value to laboratory findings and helping with critical clinical decisions. This paper proposes a test report based on the practices informed by 118 laboratories in 68 countries, with recommendations from the International Consensus on ANA Patterns (ICAP) group. Major focus is placed on the report format containing endpoint titers, immunofluorescence patterns together with anti-cell (AC) nomenclature, remarks on follow-up or reflex testing, and possible other autoantibody associations. ISO 15,189 directives were integrated into the test report. Special situations addressed include serum screening dilutions and endpoint titers, relevance of immunofluorescence patterns with special attention to cytoplasmic patterns, mixed and compound patterns, and how to report different titers corresponding to multiple patterns or autoantibodies in the same sample. This paper suggests a subtitle for the HEp-2-IIFA, namely anti-cell antibodies test, which could gradually substitute the original outdated ANA nomenclature. This ICAP pro forma report represents a further step in harmonizing the way relevant clinical information could be provided by laboratories.

Indexed as

Antibodies, AntinuclearAutoimmune DiseasesCell LineConsensusFluorescent Antibody Technique, IndirectHumansPractice Guidelines as TopicAntibodies, AntinuclearANA patternsANA test reportAnti-cell antibodies testHEp-2 cell indirect immunofluorescence assay (HEp-2 IIFA)International Consensus on ANA PatternsReport of ANA test

Identifiers

PMID34625914
OpenAlexW3204330487

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.