Evidence map›Paper›PMID 26319139›Full record

ArticlePathogens and disease2015

Comparative metabolic profiling of mce1 operon mutant vs wild-type Mycobacterium tuberculosis strains.

Adriano Queiroz, Daniel Medina-Cleghorn, Olivera Marjanovic, Daniel K Nomura, Lee W Riley

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Pathogens and disease, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.9field-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

15 citing papers in PubMed, 32 citations in OpenAlex.

  1. Mce transport systems inJournal of bacteriology · 2026
    Review
  2. Antibiotic resistance inJAC-antimicrobial resistance · 2024
    Article
  3. Diversification of gene content in theMicrobiology spectrum · 2024
    Article
  4. Review
  5. Article
  6. Dual RNA Sequencing ofInternational journal of molecular sciences · 2022
    Article
  7. Review
  8. Review
  9. Article
  10. Metabolic Versatility ofMetabolites · 2021
    Review
  11. Article
  12. Article
  13. Review
  14. Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2018
    Review
  15. 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

5 authors at 1 institution in 1 country.

Adriano QueirozDivision of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, CA 94720, USA.
Daniel Medina-CleghornProgram in Metabolic Biology, Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720, USA.
Olivera MarjanovicDivision of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, CA 94720, USA.
Daniel K NomuraProgram in Metabolic Biology, Department of Nutritional Sciences and Toxicology, University of California, Berkeley, CA 94720, USA.
Lee W RileyDivision of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, CA 94720, USA lwriley@berkeley.edu.
University of California, Berkeley · US

Funding

Innovative Approaches for Tuberculosis Control in BrazilU2RTW006885 · FIC · JOHNS HOPKINS UNIVERSITY · PI GOLUB, JONATHAN E. · 2005 to 2014
$2.3M
Annotating the Role of Dysregulated Inositol Phosphate Metabolism in Malignant CaR01CA172667 · NCI · UNIVERSITY OF CALIFORNIA BERKELEY · PI NOMURA, DANIEL · 2013 to 2017
$1.7M
In vivo regulation of M. tuberculosis cell wall lipidsR01AI073204 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI RILEY, LEE W · 2009 to 2010
$739k
FIC NIH HHS TW006885NCI NIH HHS R01 CA172667NIAID NIH HHS R01 AI073204NIAID NIH HHS R01AI073204
6 · The paper itself

Abstract

Mycobacterium tuberculosis disrupted in a 13-gene operon (mce1) accumulates free mycolic acids (FM) in its cell wall and causes accelerated death in mice. Here, to more comprehensively analyze differences in their cell wall lipid composition, we used an untargeted metabolomics approach to compare the lipid profiles of wild-type and mce1 operon mutant strains. By liquid chromatography-mass spectrometry, we identified >400 distinct lipids significantly altered in the mce1 mutant compared to wild type. These lipids included decreased levels of saccharolipids and glycerophospholipids, and increased levels of alpha-, methoxy- and keto mycolic acids (MA), and hydroxyphthioceranic acid. The mutant showed reduced expression of mmpL8, mmpL10, stf0, pks2 and papA2 genes involved in transport and metabolism of lipids recognized to induce proinflammatory response; these lipids were found to be decreased in the mutant. In contrast, the transcripts of mmpL3, fasI, kasA, kasB, acpM and RV3451 involved in MA transport and metabolism increased; MA inhibits inflammatory response in macrophages. Since the mce1 operon is known to be regulated in intracellular M. tuberculosis, we speculate that the differences we observed in cell wall lipid metabolism and composition may affect host response to M. tuberculosis infection and determine the clinical outcome of such an infection.

Indexed as

MetabolomeMutationOperonBacterial ProteinsChromatography, LiquidGene Expression ProfilingLipidsMass SpectrometryMetabolic Networks and PathwaysMycobacterium tuberculosisBacterial ProteinsLipidsmammalian cell entry protein Mce1A, Mycobacterium tuberculosislipidomicsmce1 operonM. tuberculosis

Identifiers

PMID26319139
PMCPMC4626588
OpenAlexW2252941071

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.