Evidence map›Paper›PMID 25419575›Full record

ArticlePloS one2014

Extracellular mycobacterial DnaK polarizes macrophages to the M2-like phenotype.

Rafael L Lopes, Thiago J Borges, Jessica F Araújo, Nathana G Pinho, Letícia S Bergamin, Ana Maria O Battastini, Stéfanie P Muraro, Ana Paula D Souza, Rafael F Zanin, Cristina Bonorino

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 31 citations in OpenAlex.

  1. Macrophage states and polarization duringFrontiers in cellular and infection microbiology · 2026
    Review
  2. Review
  3. Frontiers in microbiology · 2025
    Article
  4. Mycoplasma DnaK increases DNA copy number variants in vivo.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  5. Article
  6. Review
  7. Macrophage Polarity and Disease Control.International journal of molecular sciences · 2021
    Review
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Proteogenomic Analysis and Discovery of Immune Antigens inMolecular & cellular proteomics : MCP · 2017
    Article
  14. Azithromycin AttenuatesFrontiers in immunology · 2016
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. 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

10 authors at 2 institutions in 1 country.

Rafael L LopesLaboratory of Cellular and Molecular Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Department of Cellular and Molecular Biology, School of Biosciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Thiago J BorgesLaboratory of Cellular and Molecular Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Department of Cellular and Molecular Biology, School of Biosciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Jessica F AraújoLaboratory of Cellular and Molecular Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Department of Cellular and Molecular Biology, School of Biosciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Nathana G PinhoLaboratory of Cellular and Molecular Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Letícia S BergaminDepartamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Ana Maria O BattastiniDepartamento de Bioquímica, Instituto de Ciências Básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Stéfanie P MuraroSchool of Pharmacy and Laboratory of Clinical and Experimental Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Ana Paula D SouzaSchool of Pharmacy and Laboratory of Clinical and Experimental Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Rafael F ZaninLaboratory of Cellular and Molecular Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Department of Cellular and Molecular Biology, School of Biosciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Cristina BonorinoLaboratory of Cellular and Molecular Immunology, Biomedical Research Institute, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Department of Cellular and Molecular Biology, School of Biosciences, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
Pontifícia Universidade Católica do Rio Grande do Sul · BRUniversidade Federal do Rio Grande do Sul · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Macrophages are myeloid cells that play an essential role in inflammation and host defense, regulating immune responses and maintaining tissue homeostasis. Depending on the microenvironment, macrophages can polarize to two distinct phenotypes. The M1 phenotype is activated by IFN-γ and bacterial products, and displays an inflammatory profile, while M2 macrophages are activated by IL-4 and tend to be anti-inflammatory or immunosupressive. It was observed that DnaK from Mycobacterium tuberculosis has immunosuppressive properties, inducing a tolerogenic phenotype in dendritic cells and MDSCs, contributing to graft acceptance and tumor growth. However, its role in macrophage polarization remains to be elucidated. We asked whether DnaK was able to modulate macrophage phenotype. Murine macrophages, derived from bone marrow, or from the peritoneum, were incubated with DnaK and their phenotype compared to M1 or M2 polarized macrophages. Treatment with DnaK leads macrophages to present higher arginase I activity, IL-10 production and FIZZ1 and Ym1 expression. Furthermore, DnaK increased surface levels of CD206. Importantly, DnaK-treated macrophages were able to promote tumor growth in an allogeneic melanoma model. Our results suggest that DnaK polarizes macrophages to the M2-like phenotype and could constitute a virulence factor and is an important immunomodulator of macrophage responses.

Indexed as

AnimalsArginaseBacterial Proteinsbeta-N-AcetylhexosaminidasesCells, CulturedCytokinesFemaleFlow CytometryGene ExpressionHSP70 Heat-Shock ProteinsIntercellular Signaling Peptides and ProteinsInterleukin-10LectinsLipopolysaccharidesMacrophage ActivationMacrophagesArg1 protein, mouseArginaseBacterial Proteinsbeta-N-AcetylhexosaminidasesChil3 protein, mouseCytokinesHSP70 Heat-Shock ProteinsIntercellular Signaling Peptides and ProteinsInterleukin-10LectinsLipopolysaccharidesMolecular ChaperonesRetnla protein, mouse

Identifiers

PMID25419575
PMCPMC4242626
OpenAlexW2022385151

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.