Evidence map›Paper›PMID 19364836›Full record

ArticleInfection and immunity2009

Natural antibody contributes to host defense against an attenuated Brucella abortus virB mutant.

Hortensia G Rolán, Mariana N Xavier, Renato L Santos, Renée M Tsolis

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
5.2field-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

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Frontiers in cellular and infection microbiology · 2017
    Article
  6. Type IV secretion system of Brucella spp. and its effectors.Frontiers in cellular and infection microbiology · 2015
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
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  15. Laboratory animal models for brucellosis research.Journal of biomedicine & biotechnology · 2011
    Review
  16. 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 2 institutions in 2 countries.

Hortensia G RolánDepartment of Medical Microbiology and Immunology, University of California, One Shields Avenue, Davis, California 95616, USA.
Mariana N Xavier
Renato L Santos
Renée M Tsolis
Universidade Federal de Minas Gerais · BRUniversity of California, Davis · US

Funding

Characterization of the Brucella virB locusR01AI050553 · NIAID · UNIVERSITY OF CALIFORNIA DAVIS · PI TSOLIS, RENEE M · 2001 to 2010
$2.9M
NIAID NIH HHS AI050553NIAID NIH HHS R01 AI050553
6 · The paper itself

Abstract

Brucella abortus is an intracellular pathogen that persists within phagocytic cells of the reticuloendothelial system. To identify in vivo interactions between B. abortus and the host that lead to persistent infection, we studied the persistence of B. abortus and an isogenic virB mutant deficient in the VirB type IV secretion system (T4SS) in knockout mice. In contrast to control mice, mice lacking B cells (Igh6(-/-)) were permissive for infection with the attenuated virB mutant. To determine the basis for this phenotype, we characterized immune functions of Igh6(-/-) mice in the context of B. abortus infection. Igh6(-/-) mice had greater numbers of extracellular bacteria in the spleen and increased early expression of proinflammatory cytokines during B. abortus infection. Further, a virB mutant, despite its wild-type level of survival, failed to elicit microgranuloma formation in the spleens of Igh6(-/-) mice, suggesting a requirement for the T4SS to elicit this pathological change. Passive transfer of immunoglobulin G from naïve mice restored the ability of Igh6(-/-) mice to control the persistence of the virB mutant by a complement-independent mechanism. Further, adoptive transfer of CD11b(+) cells from C57BL/6 mice to Igh6(-/-) mice restored the ability of the knockout mice to limit the replication of the virB mutant in the spleen, suggesting that the Igh6(-)(/)(-) mutation affects phagocyte function and that phagocyte function can be restored by natural antibody.

Indexed as

Adoptive TransferAnimalsAntibodies, BacterialB-LymphocytesBrucella abortusBrucellosisColony Count, MicrobialCytokinesFemaleGene Knockout TechniquesGranulomaImmunization, PassiveMaleMiceMice, KnockoutSpleenAntibodies, BacterialCytokinesVirulence Factors

Identifiers

PMID19364836
PMCPMC2708545
OpenAlexW2118454256

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.