Evidence map›Paper›PMID 17591775›Full record

ArticleThe Journal of biological chemistry2007

Exosomes released from infected macrophages contain Mycobacterium avium glycopeptidolipids and are proinflammatory.

Sanchita Bhatnagar, Jeffrey S Schorey

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 187 papers.

0numbers the graph read from it
0cells of the map it votes in
187citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

187 citing papers in PubMed, 336 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Extracellular vesicles shed by macrophages co-cultured withBioscience of microbiota, food and health · 2025
    Article
  10. Exosomes in arteriovenous fistula stenosis.Frontiers in cell and developmental biology · 2025
    Review
  11. Review
  12. Impact ofMicroorganisms · 2024
    Article
  13. Article
  14. Article
  15. Activation of host nucleic acid sensors byCritical reviews in microbiology · 2024
    Review
  16. Review
  17. Review
  18. Significance of extracellular vesicles in orchestration of immune responses inFrontiers in cellular and infection microbiology · 2024
    Review
  19. Review
  20. Review

127 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

2 authors at 1 institution in 1 country.

Sanchita BhatnagarDepartment of Biological Sciences, Center for Global Health and Infectious Diseases, University of Notre Dame, Notre Dame, Indiana 46556, USA.
Jeffrey S Schorey
Center for Global Health · US

Funding

M. avium GPLs in Macrophage Activation and VirulenceR01AI052439 · NIAID · UNIVERSITY OF NOTRE DAME · PI SCHOREY, JEFFREY SCOTT · 2004 to 2014
$3.4M
Macrophage signaling upon M avium infectionR01AI056979 · NIAID · UNIVERSITY OF NOTRE DAME · PI SCHOREY, JEFFREY SCOTT · 2004 to 2008
$1.4M
NIAID NIH HHS AI052439NIAID NIH HHS AI056979NIAID NIH HHS R01 AI052439NIAID NIH HHS R01 AI056979
6 · The paper itself

Abstract

Mycobacterium avium is a major opportunistic pathogen in HIV-positive individuals and is responsible for increased morbidity and mortality in AIDS patients. M. avium express glycopeptidolipids (GPLs) as a major cell wall constituent, and recent studies suggest that GPLs play an important role in M. avium pathogenesis. In the present study we show that M. avium-infected macrophages release GPLs, which are trafficked from the phagosome through the endocytic network to multivesicular bodies. Prior studies have shown that multivesicular bodies can fuse with the plasma membrane releasing small 50 to 100 nm vesicles known as exosomes. We found that M. avium-infected macrophages release exosomes containing GPLs leading to the transfer of GPLs from infected to uninfected macrophages. Interestingly, exosomes isolated from M. avium-infected but not from uninfected macrophages can stimulate a proinflammatory response in resting macrophages. This proinflammatory response is dependent on Toll like receptor (TLR) 2, TLR4, and MyD88 suggesting that released exosomes contain M. avium-expressed TLR ligands. Our studies are the first to demonstrate that exosomes isolated from mycobacteria-infected macrophages can induce a proinflammatory response, and we hypothesize that exosomes play an important role in immune surveillance during intracellular bacteria infections.

Indexed as

Mycobacterium aviumAIDS-Related Opportunistic InfectionsAnimalsBiological Transport, ActiveCell LineCell WallFemaleGlycoconjugatesHIVInflammationInflammation MediatorsMacrophagesMaleMiceMice, Inbred BALB CMice, KnockoutGlycoconjugatesInflammation MediatorsMyd88 protein, mouseMyeloid Differentiation Factor 88Tlr2 protein, mouseTlr4 protein, mouseToll-Like Receptor 2Toll-Like Receptor 4

Identifiers

PMID17591775
PMCPMC3636815
OpenAlexW2019169633

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.