Evidence map›Paper›PMID 31891367›Full record

ArticleThe Journal of experimental medicine2020

Human IgA binds a diverse array of commensal bacteria.

Delphine Sterlin, Jehane Fadlallah, Olivia Adams, Claire Fieschi, Christophe Parizot, Karim Dorgham, Asok Rajkumar, Gaëlle Autaa, Hela El-Kafsi, Jean-Luc Charuel and 13 more

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
11.4field-weighted citation impact, top 1% 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

81 citing papers in PubMed, 117 citations in OpenAlex.

  1. IgA2Cell reports. Medicine · 2025
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  14. N-Glycan-Dependent Proinflammatory Effects of IgM in Anti-MAG Neuropathy.Neurology(R) neuroimmunology & neuroinflammation · 2025
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  19. Profiling of Anti-glycan IgA and IgG in Oral Fluid Using a Glycan Microarray.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
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21 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

23 authors at 8 institutions in 4 countries.

Delphine SterlinSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Jehane FadlallahSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Olivia AdamsInstitute of Pharmacology, University of Bern, Bern, Switzerland.
Claire FieschiUniversité Paris Diderot Paris 7, Department of Clinical Immunology, Hôpital Saint-Louis, Assistance Publique Hôpitaux de Paris, EA 3518, Paris, France.
Christophe ParizotSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Karim DorghamSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Asok RajkumarSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Gaëlle AutaaSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Hela El-KafsiSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Jean-Luc CharuelSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Catherine JusteMicalis Institute, INRA, AgroParisTech, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
Friederike JönssonUnit of Antibodies in Therapy and Pathology, Institut Pasteur, UMR1222 Institut national de la santé et de la recherche médicale, Paris, France.
Thomas CandelaEA 4043, Unité Bactéries Pathogènes et Santé, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France.
Hedda WardemannDivision of B Cell Immunology, German Cancer Research Center, Heidelberg, Germany.
Alexandra AubrySorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Carmen CapitoEA 4043, Unité Bactéries Pathogènes et Santé, Université Paris-Sud, Université Paris-Saclay, Châtenay-Malabry, France.
Hélène BrissonSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Christophe TresalletSorbonne Université, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Richard D CummingsDepartment of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.
Martin LarsenSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Hans YsselSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Stephan von GuntenInstitute of Pharmacology, University of Bern, Bern, Switzerland.
Guy GorochovSorbonne Université, Institut national de la santé et de la recherche médicale, Centre d'Immunologie et des Maladies Infectieuses, Assistance Publique Hôpitaux de Paris, Hôpital Pitié-Salpêtrière, Paris, France.
Sorbonne Université · FRUniversité Paris-Sud · FRUniversity of Bern · CHAgroParisTech · FRBeth Israel Deaconess Medical Center · USDélégation Paris 7 · FRGerman Cancer Research Center · DEInstitut Pasteur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In humans, several grams of IgA are secreted every day in the intestinal lumen. While only one IgA isotype exists in mice, humans secrete IgA1 and IgA2, whose respective relations with the microbiota remain elusive. We compared the binding patterns of both polyclonal IgA subclasses to commensals and glycan arrays and determined the reactivity profile of native human monoclonal IgA antibodies. While most commensals are dually targeted by IgA1 and IgA2 in the small intestine, IgA1+IgA2+ and IgA1-IgA2+ bacteria coexist in the colon lumen, where Bacteroidetes is preferentially targeted by IgA2. We also observed that galactose-α terminated glycans are almost exclusively recognized by IgA2. Although bearing signs of affinity maturation, gut-derived IgA monoclonal antibodies are cross-reactive in the sense that they bind to multiple bacterial targets. Private anticarbohydrate-binding patterns, observed at clonal level as well, could explain these apparently opposing features of IgA, being at the same time cross-reactive and selective in its interactions with the microbiota.

Identifiers

PMID31891367
PMCPMC7062531
OpenAlexW2998467622

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

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.