Evidence map›Paper›PMID 22561364›Full record

ArticleThe Journal of infectious diseases2012

B Lymphocytes provide an infection niche for intracellular bacterium Brucella abortus.

Radhika Goenka, Patrick D Guirnalda, Samuel J Black, Cynthia L Baldwin

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.8field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 47 citations in OpenAlex.

  1. Frontiers in immunology · 2026
    Article
  2. Article
  3. Frontiers in microbiology · 2025
    Review
  4. Article
  5. Article
  6. Cell and Tissue Tropism of Brucella spp.Infection and immunity · 2023
    Review
  7. Article
  8. Article
  9. Review
  10. Pathogens (Basel, Switzerland) · 2021
    Review
  11. The Role of Neutrophils in Brucellosis.Microbiology and molecular biology reviews : MMBR · 2020
    Review
  12. B Cells Inhibit CD4Infection and immunity · 2020
    Article
  13. Review
  14. The Role of the Flagellar Protein FlgJ in the Virulence ofFrontiers in cellular and infection microbiology · 2020
    Article
  15. Persistence ofJournal of immunology research · 2018
    Article
  16. Development and trial of vaccines againstJournal of veterinary science · 2017
    Review
  17. Frontiers in immunology · 2017
    Article
  18. Frontiers in immunology · 2017
    Article
  19. Review
  20. Frontiers in microbiology · 2017
    Review
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

4 authors at 1 institution in 1 country.

Radhika GoenkaDepartment of Veterinary and Animal Sciences, University of Massachusetts, Amherst, Massachusetts 01003, USA.
Patrick D Guirnalda
Samuel J Black
Cynthia L Baldwin
University of Massachusetts Amherst · US

Funding

PHS HHS A1073461
6 · The paper itself

Abstract

backgroundBrucella spp. are intracellular bacteria that establish lifelong infections whose mechanisms of chronicity are poorly understood. Notably, B cells facilitate the establishment of the high infection plateau that persists for months.

methodsWe evaluated the contribution of murine B cells toward providing infection niches for Brucella by using flow cytometry and microscopy and by determining live bacterial counts associated with B cells both in vivo and in vitro.

resultsHerein we demonstrate that immunoglobulin M and complement-opsonized Brucella abortus infects and survives inside primary murine B cells protected from bactericidal effects of gentamicin. The entry was dependent on microfilaments for internalization and subsequently brucellae reside in a late endosomal/lysosomal compartment. Throughout the infection, 10% of colony-forming units from infected mice was associated with B cells, and these cells transferred disease to naive hosts. Furthermore, Brucella-positive cells were positive for transforming growth factor (TGF) β1, and about 10% of such cells were B cells, similar to rates found for other intracellular pathogens that induce their hosts cells to produce TGF-β1.

conclusionsTo conclude, infected B cells contribute to chronic bacterial infections by providing an intracellular niche that may exert an immunoregulatory role. Although professional phagocytic cells harbor intracellular bacteria including Brucella, infection of lymphocytes by bacteria has not been previously appreciated.

Indexed as

AnimalsAntibodies, BacterialB-LymphocytesBrucella abortusBrucellosisComplement System ProteinsDNA ReplicationEndosomesImmunoglobulin MLysosomesMacrophagesMiceMice, Inbred BALB CMonocytesPhagocytosisStem CellsAntibodies, BacterialComplement System ProteinsImmunoglobulin MTransforming Growth Factor beta1

Identifiers

PMID22561364
PMCPMC3415929
OpenAlexW2134624516

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.