Evidence map›Paper›PMID 34060477›Full record

ArticleThe Journal of clinical investigation2021

Lung-resident memory B cells protect against bacterial pneumonia.

Kimberly A Barker, Neelou S Etesami, Anukul T Shenoy, Emad I Arafa, Carolina Lyon de Ana, Nicole Ms Smith, Ian Mc Martin, Wesley N Goltry, Alexander Ms Barron, Jeffrey L Browning and 8 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
12.4field-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

78 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. The multilayered identity of B cell memory.Cellular & molecular immunology · 2026
    Review
  6. Article
  7. Neonatal CD19Frontiers in immunology · 2026
    Article
  8. Review
  9. Article
  10. B cells in non-lymphoid tissues.Nature reviews. Immunology · 2025
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Lung CD4Cell reports · 2025
    Article
  16. Article
  17. Resident memory B cells are enriched in chronic rhinosinusitis with nasal polyps.The journal of allergy and clinical immunology. Global · 2025
    Article
  18. Review
  19. Interleukin-1 signaling and CD4Frontiers in immunology · 2025
    Article
  20. Article

18 more citing papers are in PubMed but not listed here.

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

18 authors at 5 institutions in 3 countries.

Kimberly A BarkerPulmonary Center.
Neelou S EtesamiPulmonary Center.
Anukul T ShenoyPulmonary Center.
Emad I ArafaPulmonary Center.
Carolina Lyon de AnaPulmonary Center.
Nicole Ms SmithPulmonary Center.
Ian Mc MartinPulmonary Center.
Wesley N GoltryPulmonary Center.
Alexander Ms BarronDepartment of Microbiology.
Jeffrey L BrowningDepartment of Microbiology.
Hasmeena KathuriaPulmonary Center.
Anna C BelkinaPulmonary Center.
Antoine GuillonPulmonary Center.
Xuemei ZhongDepartment of Medicine.
Nicholas A CrosslandDepartment of Pathology and Laboratory Medicine, and.
Matthew R JonesPulmonary Center.
Lee J QuintonPulmonary Center.
Joseph P MizgerdPulmonary Center.
Pulmonary Associates · USCzech Academy of Sciences, Institute of Microbiology · CZEmory University Hospital · USBoston University · USInserm · FR

Funding

BIOLOGY OF THE LUNG--MULTIDISCIPLINARY PROGRAMT32HL007035 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI Darrell N. Kotton, JOSEPH P MIZGERD · 1985 to 2026
$24.3M
Genotype-Phenotype Associations in Pediatric CardiomyopathyR01HL111459 · NHLBI · WAYNE STATE UNIVERSITY · PI LIPSHULTZ, STEVEN EDWARD · 2012 to 2015
$8.6M
Pneumonia BiologyR35HL135756 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI MIZGERD, JOSEPH P · 2017 to 2023
$6.6M
Lung-resident antibacterial heterotypic immunityR01AI115053 · NIAID · BOSTON UNIVERSITY MEDICAL CAMPUS · PI MIZGERD, JOSEPH P · 2015 to 2023
$4.0M
The Biology of LIF During PneumoniaR01HL111449 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI QUINTON, LEE · 2012 to 2020
$3.7M
The B cell repertoire as a window into the nature and impact of the lung viromeR33HL137081 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI FEARNS, RACHEL, KEPLER, THOMAS B · 2019 to 2021
$2.4M
Origins and functional roles of Miwi2-positive multiciliated cells during inflammationR01HL136725 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI FINE, ALAN FINE, JONES, MATTHEW ROBERT · 2018 to 2021
$1.6M
Liver-derived protection during pneumonia and sepsisR01GM120060 · NIGMS · BOSTON UNIVERSITY MEDICAL CAMPUS · PI QUINTON, LEE · 2017 to 2020
$1.3M
Ventana Discovery Ultra Research Autostainer: an Ex+ Core serviceS10OD026983 · OD · BOSTON UNIVERSITY MEDICAL CAMPUS · PI CROSSLAND, NICHOLAS ALEXANDER · 2019 to 2019
$207k
Lung Memory B Cell Contributions to Heterotypic Anti-Pneumococcal ImmunityF31HL142199 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI BARKER, KIMBERLY ALYNN · 2018 to 2020
$110k
Pneumonia and Alveolar Macrophage ResilienceF31HL147397 · NHLBI · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ARAFA, EMAD · 2019 to 2021
$93k
NHLBI NIH HHS F31 HL142199NHLBI NIH HHS F31 HL147397NHLBI NIH HHS R01 HL111449NHLBI NIH HHS R01 HL111459NHLBI NIH HHS R01 HL136725NHLBI NIH HHS R33 HL137081NHLBI NIH HHS R35 HL135756NHLBI NIH HHS T32 HL007035NIAID NIH HHS R01 AI115053NIGMS NIH HHS R01 GM120060NIH HHS S10 OD026983
6 · The paper itself

Abstract

Lung-resident memory B cells (BRM cells) are elicited after influenza infections of mice, but connections to other pathogens and hosts - as well as their functional significance - have yet to be determined. We postulate that BRM cells are core components of lung immunity. To test this, we examined whether lung BRM cells are elicited by the respiratory pathogen pneumococcus, are present in humans, and are important in pneumonia defense. Lungs of mice that had recovered from pneumococcal infections did not contain organized tertiary lymphoid organs, but did have plasma cells and noncirculating memory B cells. The latter expressed distinctive surface markers (including CD69, PD-L2, CD80, and CD73) and were poised to secrete antibodies upon stimulation. Human lungs also contained B cells with a resident memory phenotype. In mice recovered from pneumococcal pneumonia, depletion of PD-L2+ B cells, including lung BRM cells, diminished bacterial clearance and the level of pneumococcus-reactive antibodies in the lung. These data define lung BRM cells as a common feature of pathogen-experienced lungs and provide direct evidence of a role for these cells in pulmonary antibacterial immunity.

Indexed as

Immunologic MemoryAnimalsAntigens, DifferentiationB-LymphocytesHumansLungMiceMice, TransgenicPneumonia, PneumococcalStreptococcus pneumoniaeAntigens, DifferentiationAdaptive immunityBacterial infectionsImmunologyPulmonology

Identifiers

PMID34060477
PMCPMC8159694
OpenAlexW3164277943

What OpenQuestion holds

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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.