Evidence map›Paper›PMID 30339768›Full record

ArticleAmerican journal of respiratory and critical care medicine2019

Increased IgA Expression in Lung Lymphoid Follicles in Severe Chronic Obstructive Pulmonary Disease.

Maha Zohra Ladjemi, Clémence Martin, Marylène Lecocq, Bruno Detry, Frank Aboubakar Nana, Charlotte Moulin, Birgit Weynand, Chantal Fregimilicka, Caroline Bouzin, Pascal Thurion and 7 more

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In one paragraph

Article in American journal of respiratory and critical care medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

42 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Peribronchial Inflammatory Cell Assessment in COPD Lung Tissues.Journal of cellular and molecular medicine · 2024
    Article
  8. Article
  9. Review
  10. Nutrients · 2024
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. IgAThe European respiratory journal · 2022
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

17 authors at 7 institutions in 2 countries.

Maha Zohra Ladjemi1 Pôle de Pneumologie, ORL & Dermatologie.ORCID 0000-0001-5923-0984
Clémence Martin3 Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Marylène Lecocq1 Pôle de Pneumologie, ORL & Dermatologie.
Bruno Detry1 Pôle de Pneumologie, ORL & Dermatologie.
Frank Aboubakar Nana1 Pôle de Pneumologie, ORL & Dermatologie.
Charlotte Moulin1 Pôle de Pneumologie, ORL & Dermatologie.
Birgit Weynand6 Pathologische Ontleedkunde, UZ Leuven, Leuven, Belgium.
Chantal Fregimilicka7 Institut de Recherche Expérimentale & Clinique Imaging Platform, Institut de Recherche Expérimentale & Clinique, Université Catholique de Louvain, Brussels, Belgium.
Caroline Bouzin7 Institut de Recherche Expérimentale & Clinique Imaging Platform, Institut de Recherche Expérimentale & Clinique, Université Catholique de Louvain, Brussels, Belgium.
Pascal Thurion8 Service d'anatomopathologie, CHU de Mont-Godinne, Yvoir, Belgium.
François Carlier1 Pôle de Pneumologie, ORL & Dermatologie.
Jef Serré9 KU Leuven, Laboratory of Respiratory Diseases, Leuven, Belgium; and.
Ghislaine Gayan-Ramirez9 KU Leuven, Laboratory of Respiratory Diseases, Leuven, Belgium; and.
Monique Delos8 Service d'anatomopathologie, CHU de Mont-Godinne, Yvoir, Belgium.
Sebahat Ocak1 Pôle de Pneumologie, ORL & Dermatologie.
Pierre Régis Burgel3 Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Charles Pilette1 Pôle de Pneumologie, ORL & Dermatologie.
UCLouvain · BECHU Dinant Godinne UCL Namur · BECliniques Universitaires Saint-Luc · BEDélégation Paris 5 · FRKU Leuven · BEWalloon Excellence in Lifesciences and Biotechnology · BEUniversitair Ziekenhuis Leuven · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleAccumulation of B cells and lymphoid follicles (LFs) has been described in chronic obstructive pulmonary disease (COPD) airways, but the functional status of lung B cells remains poorly known.

objectivesTo characterize LFs for expression of IgA, the main mucosal antibody.

methodsThe presence of B cells and LFs, including intrafollicular IgA expression, were determined in the lung from patients with COPD (n = 37) versus control subjects (n = 34) by immunohistochemistry. We also evaluated follicular IgA responses in the lungs from mice infected with Pseudomonas aeruginosa (PAO1) (n = 10 per group) and in smoking mice. MEASUREMENTS AND MAIN

resultsWhereas in smokers B-cell numbers slightly increased, robust increases in B-cell and LF numbers (mainly in distal airways) were only observed in severe COPD. Most follicular B cells were IgM

conclusionsThis study shows that IgA production occurs in peribronchiolar LFs from severe COPD, where IL-21-producing T cells are present, and presumably represents a feature of exacerbated mucosal adaptive immune responses against microbial and/or self-antigens.

Indexed as

Acute DiseaseAnimalsB-LymphocytesCase-Control StudiesDisease Models, AnimalEnzyme-Linked Immunosorbent AssayFemaleFluorescent Antibody TechniqueHumansImmunoglobulin AInterleukin-21Interleukin-6InterleukinsLungMaleMice, Inbred C57BLImmunoglobulin AInterleukin-21Interleukin-6InterleukinsB lymphocytesCOPDIgAlymphoid follicles

Identifiers

PMID30339768
OpenAlexW2918951515

What OpenQuestion holds

Textmetadata
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.