Evidence map›Paper›PMID 39730579›Full record

ArticleScientific reports2024

Drug resistant Mycobacterium tuberculosis strains have altered cell envelope hydrophobicity that influences infection outcomes in human macrophages.

Alyssa Schami, M Nurul Islam, Matthew Wall, Amberlee Hicks, Reagan Meredith, Barry Kreiswirth, Barun Mathema, John T Belisle, Jordi B Torrelles

Erratum issuedAbstract read
In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Alyssa SchamiPopulation Health and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, USA. ASchami@txbiomed.org.
M Nurul IslamMycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA. MohammadNurul.Islam@sdstate.edu.
Matthew WallPopulation Health and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, USA.
Amberlee HicksPopulation Health and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, USA.
Reagan MeredithPopulation Health and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, USA.
Barry KreiswirthCenter for Discovery and Innovation, Hackensack Meridian Health, Nutley, NJ, USA.
Barun MathemaDepartment of Epidemiology, Columbia University Mailman School of Public Health, New York, NY, USA.
John T BelisleMycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, USA. John.Belisle@ColoState.edu.
Jordi B TorrellesPopulation Health and Host Pathogen Interactions Programs, Texas Biomedical Research Institute, San Antonio, TX, USA. JTorrelles@txbiomed.org.

Funding

The Rv2623-Rv1747 interaction: regulation of the in vivo fate of M. tuberculosisR01AI146340 · NIAID · RUTGERS BIOMEDICAL AND HEALTH SCIENCES · PI CHAN, JOHN R., TORRELLES, JORDI B · 2020 to 2025
$4.5M
National Institute of Allergy and Infectious Diseases R01 AI-146340NIAID NIH HHS R01 AI146340Texas Biomedical Research Institute Douglass Graduate Fellowship
6 · The paper itself

Abstract

In recent decades, drug resistant (DR) strains of Mycobacterium tuberculosis (M.tb), the cause of tuberculosis (TB), have emerged that threaten public health. Although M.tb's complex and protective cell envelope has been widely studied, little is known about how levels of peripheral lipids change in relation to drug resistance. In this study, we examined levels of cell envelope lipids [phthiocerol dimycocerosates (PDIMs)], glycolipids [phosphatidyl-myo-inositol mannosides (PIMs)], and PIMs associated lipoglycans [lipomannan (LM); mannose-capped lipoarabinomannan (ManLAM)] of 22 M.tb strains that ranged in drug resistance profile. We show that the PDIMs:PIMs ratio increases as drug resistance increases, and provide evidence of PDIM isomers only present in the DR-M.tb strains studied. Overall, the LM and ManLAM levels did not differ between drug resistance categories, but ManLAM surface exposure increased with drug resistance. Infection of human macrophages revealed that DR-M.tb strains have decreased association compared to drug susceptible (DS) strains, and that the pre-XDR M.tb strain with the largest PDIMs:PIMs ratio had decreased uptake, but increased intracellular growth at early during infection compared to the DS-M.tb strain H

Indexed as

Cell WallHydrophobic and Hydrophilic InteractionsLipopolysaccharidesMacrophagesMycobacterium tuberculosisAntitubercular AgentsCell MembraneDrug Resistance, BacterialGlycolipidsHumansLipidsPhosphatidylinositolsTuberculosis, Multidrug-ResistantAntitubercular AgentsGlycolipidsLipidslipoarabinomannanlipomannanLipopolysaccharidesphosphatidylinositol mannosidePhosphatidylinositolsphthiocerol dimycocerosateCell envelope compositionDrug resistanceMycobacterium tuberculosisPhosphatidyl-myo-inositol mannosidesPhthiocerol dimycocerosatesTuberculosis

Identifiers

PMID39730579
PMCPMC11681083

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.