Evidence map›Paper›PMID 26674415›Full record

ArticleOpen biology2015

Naturally produced opsonizing antibodies restrict the survival of Mycobacterium tuberculosis in human macrophages by augmenting phagosome maturation.

Shashi Kant Kumar, Padam Singh, Sudhir Sinha

Open access · goldAbstract read
In one paragraph

Article in Open biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

37 citing papers in PubMed, 49 citations in OpenAlex.

  1. Article
  2. HowVaccines · 2026
    Review
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  4. Article
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  7. Antigen specificity shapes antibody functions in tuberculosis.bioRxiv : the preprint server for biology · 2024
    Article
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  9. 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

3 authors at 1 institution in 1 country.

Shashi Kant KumarDivision of Biochemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India.
Padam SinghDivision of Biochemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India.
Sudhir SinhaDivision of Biochemistry, CSIR-Central Drug Research Institute, Sector-10, Jankipuram Extension, Lucknow 226031, India Academy of Scientific and Innovative Research, New Delhi, India sinha.sudhir@gmail.com.
Central Drug Research Institute · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study investigated the hypothesis that serum antibodies against Mycobacterium tuberculosis present in naturally infected healthy subjects of a tuberculosis (TB) endemic area could create and/or sustain the latent form of infection. All five apparently healthy Indian donors showed high titres of serum antibodies against M. tuberculosis cell membrane antigens, including lipoarabinomannan and alpha crystallin. Uptake and killing of bacilli by the donor macrophages was significantly enhanced following their opsonization with antibody-rich, heat-inactivated autologous sera. However, the capability to opsonize was apparent for antibodies against some and not other antigens. High-content cell imaging of infected macrophages revealed significantly enhanced colocalization of the phagosome maturation marker LAMP-1, though not of calmodulin, with antibody-opsonized compared with unopsonized M. tuberculosis. Key enablers of macrophage microbicidal action--proinflammatory cytokines (IFN-γ and IL-6), phagosome acidification, inducible NO synthase and nitric oxide--were also significantly enhanced following antibody opsonization. Interestingly, heat-killed M. tuberculosis also elevated these mediators to the levels comparable to, if not higher than, opsonized M. tuberculosis. Results of the study support the emerging view that an efficacious vaccine against TB should, apart from targeting cell-mediated immunity, also generate 'protective' antibodies.

Indexed as

AntibodiesHumansInterferon-gammaInterleukin-6MacrophagesMycobacterium tuberculosisPhagosomesAntibodiesInterferon-gammaInterleukin-6antibody opsonizationlatent tuberculosis infectionMycobacterium tuberculosisphagosome maturation

Identifiers

PMID26674415
PMCPMC4703058
OpenAlexW2196673026

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.