Evidence map›Paper›PMID 19797156›Full record

ArticleAmerican journal of respiratory and critical care medicine2009

HIV-1 infection impairs the bronchoalveolar T-cell response to mycobacteria.

Barbara Kalsdorf, Thomas J Scriba, Kathryn Wood, Cheryl L Day, Keertan Dheda, Rodney Dawson, Willem A Hanekom, Christoph Lange, Robert J Wilkinson

Abstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 81 papers.

0numbers the graph read from it
0cells of the map it votes in
81citing papers in PubMed
–field-weighted citation impact
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

81 citing papers in PubMed.

  1. Trial
  2. Trial
  3. Review
  4. Article
  5. UnveilingiScience · 2025
    Article
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  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Evaluation of theFrontiers in cellular and infection microbiology · 2023
    Article
  13. Article
  14. Review
  15. Article
  16. Th22 Cells Are a Major Contributor to the Mycobacterial CD4Journal of immunology (Baltimore, Md. : 1950) · 2021
    Article
  17. Enhanced Detection ofFrontiers in veterinary science · 2021
    Article
  18. Article
  19. Article
  20. Host defense mechanisms against Mycobacterium tuberculosis.Cellular and molecular life sciences : CMLS · 2020
    Review

21 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

9 authors.

Barbara KalsdorfClinical Infectious Diseases Research Initiative, University of Cape Town, Observatory, South Africa.
Thomas J Scriba
Kathryn Wood
Cheryl L Day
Keertan Dheda
Rodney Dawson
Willem A Hanekom
Christoph Lange
Robert J Wilkinson

Funding

Protective immunity induced by newborn BCG vaccinationR01AI065653 · NIAID · UNIVERSITY OF CAPE TOWN · PI HANEKOM, WILLEM ALBERT · 2005 to 2009
$2.5M
Medical Research Council MC_U117588499NIAID NIH HHS N01-AI-70022NIAID NIH HHS R01-AI-065653Wellcome Trust 072070Wellcome Trust 080929Wellcome Trust 084323
6 · The paper itself

Abstract

rationaleThe risk of developing active tuberculosis in persons with latent Mycobacterium tuberculosis infection is substantially increased shortly after HIV-1 seroconversion. Immune responses in the lung are important to restrict the growth of M. tuberculosis to prevent the development of disease.

objectivesTo investigate innate and adaptive immune responses to M. tuberculosis in bronchoalveolar lavage from HIV-1-infected persons without active tuberculosis.

methodsPeripheral blood was drawn and bronchoalveolar lavage (BAL) performed on healthy, HIV-1-uninfected (n = 21) and HIV-1-infected (n = 15) adults. Growth of M. tuberculosis was assessed in monocytes and alveolar macrophages. Cytokine expression by mycobacteria-specific CD4 and CD8 T cells was measured by intracellular cytokine staining or IFN-gamma ELISpot. MEASUREMENTS AND MAIN

resultsMycobacterial growth in monocytes or alveolar macrophages from HIV-1-infected and -uninfected persons did not differ. Total CD4 T-cell frequencies in BAL were lower in HIV-1-infected than in HIV-1-uninfected persons (P < 0.001). Mycobacteria (bacillus Calmette-Guérin)-specific CD4 T-cell responses in BAL were severely impaired: Frequencies of cells expressing IFN-gamma or tumor necrosis factor (TNF)-alpha, as well as polyfunctional cells, expressing IFN-gamma, TNF-alpha, and IL-2 together, were lower in HIV-1-infected persons than in uninfected controls (P < 0.01 for all).

conclusionsIn addition to a total CD4 T-cell deficit, the function of mycobacteria-specific CD4 T cells is significantly impaired in the lung of HIV-1-infected persons, which may account for the HIV-1-associated elevated risk for developing tuberculosis.

Indexed as

AdultBronchoalveolar Lavage FluidCytokinesEnzyme-Linked Immunosorbent AssayFemaleFlow CytometryHIV InfectionsHumansMaleMiddle AgedMycobacterium tuberculosisRisk FactorsT-LymphocytesYoung AdultCytokines

Identifiers

PMID19797156
PMCPMC2796736

What OpenQuestion holds

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Registered trials

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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.