Evidence map›Paper›PMID 20526363›Full record

ArticlePloS one2010

Incorporation of a dietary omega 3 fatty acid impairs murine macrophage responses to Mycobacterium tuberculosis.

Diana L Bonilla, Lan H Ly, Yang-Yi Fan, Robert S Chapkin, David N McMurray

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

29 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Docosahexaenoic acid supplementation inhibits monocyte exhaustion memory formation during sepsis.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Article
  3. Article
  4. Article
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  6. Article
  7. Narrative Review ofNutrients · 2021
    Review
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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

5 authors at 2 institutions in 1 country.

Diana L BonillaDepartment of Microbial and Molecular Pathogenesis, College of Medicine, Texas A&M Health Science Center, College Station, Texas, United States of America. bonilla@bcm.edu
Lan H Ly
Yang-Yi Fan
Robert S Chapkin
David N McMurray
Texas A&M Health Science Center · USTexas A&M University · US

Funding

Pilot--Health Science ResearchP30ES009106 · NIEHS · TEXAS A&M UNIVERSITY SYSTEM · PI SAFE, STEPHEN H. · 1998 to 2006
$9.2M
PROTEIN AND ZINC DEFICIENCY AND VACCINE EFFICACYR01AI015495 · NIAID · TEXAS A&M UNIVERSITY HEALTH SCIENCE CTR · PI MCMURRAY, DAVID N. · 1987 to 2009
$2.9M
Gene expression analysis of coding and non-coding RNAs in colon cancer preventionR01CA129444 · NCI · TEXAS A&M UNIVERSITY · PI CHAPKIN, ROBERT STEPHEN · 2007 to 2015
$2.1M
N-3 Fatty Acids Alter T Cell Activation and SignalingR01DK071707 · NIDDK · TEXAS A&M UNIVERSITY · PI CHAPKIN, ROBERT STEPHEN · 2007 to 2011
$1.5M
NCI NIH HHS CA-129444NCI NIH HHS R01 CA129444NIAID NIH HHS AI-15495NIAID NIH HHS R01 AI015495NIDDK NIH HHS DK-071707NIDDK NIH HHS R01 DK071707NIEHS NIH HHS P30 ES009106NIEHS NIH HHS P30-ES09106
6 · The paper itself

Abstract

backgroundBeside their health benefits, dietary omega 3 polyunsaturated fatty acids (n-3 PUFA) might impair host resistance to Mycobacterium tuberculosis (Mtb) by creating an immunosuppressive environment. We hypothesized that incorporation of n-3 PUFA suppresses activation of macrophage antimycobacterial responses and favors bacterial growth, in part, by modulating the IFNgamma-mediated signaling pathway. METHODOLOGY/PRINCIPAL

findingsMurine macrophage-like J774A.1 cells were incubated with bovine serum albumin (BSA)-conjugated docosahexaenoic acid (DHA; 22:6n-3) or BSA alone, activated with recombinant IFNgamma, and infected with a virulent strain (H37Rv) of M. tuberculosis. The fatty acid composition of macrophage membranes was modified significantly by DHA treatment. DHA-treated macrophages were less effective in controlling intracellular mycobacteria and showed impaired oxidative metabolism and reduced phagolysosome maturation. Incorporation of DHA resulted in defective macrophage activation, as characterized by reduced production of pro-inflammatory cytokines (TNFalpha, IL-6 and MCP-1), and lower expression of co-stimulatory molecules (CD40 and CD86). DHA treatment impaired STAT1 phosphorylation and colocalization of the IFNgamma receptor with lipid rafts, without affecting surface expression of IFNgamma receptor. CONCLUSIONS/SIGNIFICANCE: We conclude that DHA reduces the ability of J774A.1 cells to control M. tuberculosis in response to activation by IFNgamma, by modulation of IFNgamma receptor signaling and function, suggesting that n-3 PUFA-enriched diets may have a detrimental effect on host immunity to tuberculosis.

Indexed as

AnimalsB7-2 AntigenBiomarkersCD40 AntigensCell LineDietary FatsDocosahexaenoic AcidsInterferon gamma ReceptorMacrophage ActivationMacrophagesMembrane LipidsMembrane MicrodomainsMiceMicrobial ViabilityMycobacterium tuberculosisOxidation-ReductionB7-2 AntigenBiomarkersCD40 AntigensDietary FatsDocosahexaenoic AcidsInterferon gamma ReceptorMembrane LipidsReceptors, Interferon

Identifiers

PMID20526363
PMCPMC2878322
OpenAlexW1968640655

What OpenQuestion holds

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LicenceCC BY
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.