Evidence map›Paper›PMID 24007602›Full record

ArticleBMC microbiology2013

Study of the in vivo role of Mce2R, the transcriptional regulator of mce2 operon in Mycobacterium tuberculosis.

Marina Andrea Forrellad, María Verónica Bianco, Federico Carlos Blanco, Javier Nuñez, Laura Inés Klepp, Cristina Lourdes Vazquez, María de la Paz Santangelo, Rosana Valeria Rocha, Marcelo Soria, Paul Golby and 2 more

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.9field-weighted citation impact, top 27% 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

8 citing papers in PubMed, 19 citations in OpenAlex.

  1. Mce transport systems inJournal of bacteriology · 2026
    Review
  2. Comparative transcriptomic signatures of virulent and attenuatedFrontiers in cellular and infection microbiology · 2025
    Article
  3. Article
  4. Identification of essential genes inFrontiers in microbiology · 2022
    Article
  5. Mutation onVirulence · 2020
    Article
  6. Rv2577 ofFrontiers in microbiology · 2020
    Article
  7. Article
  8. Article
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

12 authors at 3 institutions in 3 countries.

Marina Andrea ForrelladInstituto de Biotecnología, CICVyA-INTA, N, Repetto and De los Reseros, Hurlingham 1686, Argentina. fbigi@cnia.inta.gov.ar.
María Verónica Bianco
Federico Carlos Blanco
Javier Nuñez
Laura Inés Klepp
Cristina Lourdes Vazquez
María de la Paz Santangelo
Rosana Valeria Rocha
Marcelo Soria
Paul Golby
Maximiliano Gabriel Gutierrez
Fabiana Bigi
Animal and Plant Health Agency · GBHelmholtz Centre for Infection Research · DEUniversity of Buenos Aires · AR

Funding

Deciphering the function of Mce proteins from Mycobacterium tuberculosisR01AI083084 · NIAID · NATIONAL INSTITUTE OF AGRICULTURE TECH · PI BIGI, FABIANA · 2009 to 2012
$348k
NIAID NIH HHS 1R01AI083084Wellcome Trust
6 · The paper itself

Abstract

backgroundTuberculosis is one of the leading causes of mortality throughout the world. Mycobacterium tuberculosis, the agent of human tuberculosis, has developed strategies involving proteins and other compounds called virulence factors to subvert human host defences and damage and invade the human host. Among these virulence-related proteins are the Mce proteins, which are encoded in the mce1, mce2, mce3 and mce4 operons of M. tuberculosis. The expression of the mce2 operon is negatively regulated by the Mce2R transcriptional repressor. Here we evaluated the role of Mce2R during the infection of M. tuberculosis in mice and macrophages and defined the genes whose expression is in vitro regulated by this transcriptional repressor.

resultsWe used a specialized transduction method for generating a mce2R mutant of M. tuberculosis H37Rv. Although we found equivalent replication of the MtΔmce2R mutant and the wild type strains in mouse lungs, overexpression of Mce2R in the complemented strain (MtΔmce2RComp) significantly impaired its replication. During in vitro infection of macrophages, we observed a significantly increased association of the late endosomal marker LAMP-2 to MtΔmce2RComp-containing phagosomes as compared to MtΔmce2R and the wild type strains. Whole transcriptional analysis showed that Mce2R regulates mainly the expression of the mce2 operon, in the in vitro conditions studied.

conclusionsThe findings of the current study indicate that Mce2R weakly represses the in vivo expression of the mce2 operon in the studied conditions and argue for a role of the proteins encoded in Mce2R regulon in the arrest of phagosome maturation induced by M. tuberculosis.

Indexed as

Gene Expression Regulation, BacterialAnimalsAntigens, BacterialBacterial ProteinsDisease Models, AnimalGene DeletionGene Expression ProfilingLungMacrophagesMiceMice, Inbred BALB CMycobacterium tuberculosisOperonRepressor ProteinsTransduction, GeneticTuberculosisAntigens, BacterialBacterial Proteinsmce2 protein, Mycobacterium tuberculosisRepressor ProteinsVirulence Factors

Identifiers

PMID24007602
PMCPMC3847441
OpenAlexW2057441021

What OpenQuestion holds

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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.