ArticlePLoS pathogens2017
Mycobacterium marinum Degrades Both Triacylglycerols and Phospholipids from Its Dictyostelium Host to Synthesise Its Own Triacylglycerols and Generate Lipid Inclusions.
Article in PLoS pathogens, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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.
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.
Who cites it
35 citing papers in PubMed, 73 citations in OpenAlex.
- HSV-1-Driven Lipid Metabolic Reprogramming and Lipid Droplet Accumulation in Macrophages Impair Antiviral Immunity.Investigative ophthalmology & visual science · 2026Article
- Review
- Review
- Complex sphingolipid profiling and identification of an inositol-phosphorylceramide synthase iniScience · 2024Article
- Exploring host-pathogen interactions in the Dictyostelium discoideum-Mycobacterium marinum infection model of tuberculosis.Disease models & mechanisms · 2024Review
- Temporal genome-wide fitness analysis ofmSystems · 2024Article
- LPIN2 is the phosphatase dominating the penultimate step of neutral lipid biosynthesis inmicroPublication biology · 2024Article
- Article
- Intrabacterial lipid inclusion-associated proteins: a core machinery conserved from saprophyte Actinobacteria to the human pathogen Mycobacterium tuberculosis.FEBS open bio · 2023Article
- Article
- The High Plasticity of NonpathogenicInternational journal of molecular sciences · 2022Article
- Polyamine and Ethanolamine Metabolism in Bacteria as an Important Component of Nitrogen Assimilation for Survival and Pathogenicity.Medical sciences (Basel, Switzerland) · 2022Review
- Analogues of Pyrimidine Nucleosides as Mycobacteria Growth Inhibitors.Microorganisms · 2022Review
- A glycine-rich PE_PGRS protein governs mycobacterial actin-based motility.Nature communications · 2022Article
- Disparate regulation of IMD signaling drives sex differences in infection pathology inProceedings of the National Academy of Sciences of the United States of America · 2021Article
- Lipid droplets and the host-pathogen dynamic: FATal attraction?The Journal of cell biology · 2021Review
- Mycobacterial fatty acid catabolism is repressed by FdmR to sustain lipogenesis and virulence.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Metabolic Versatility ofMetabolites · 2021Review
- Molecular Events Occurring in Lipophagy and Its Regulation inFrontiers in microbiology · 2021Review
- Zebrafish Embryo Model for Assessment of Drug Efficacy on Mycobacterial Persisters.Antimicrobial agents and chemotherapy · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
During a tuberculosis infection and inside lipid-laden foamy macrophages, fatty acids (FAs) and sterols are the major energy and carbon source for Mycobacterium tuberculosis. Mycobacteria can be found both inside a vacuole and the cytosol, but how this impacts their access to lipids is not well appreciated. Lipid droplets (LDs) store FAs in form of triacylglycerols (TAGs) and are energy reservoirs of prokaryotes and eukaryotes. Using the Dictyostelium discoideum/Mycobacterium marinum infection model we showed that M. marinum accesses host LDs to build up its own intracytosolic lipid inclusions (ILIs). Here, we show that host LDs aggregate at regions of the bacteria that become exposed to the cytosol, and appear to coalesce on their hydrophobic surface leading to a transfer of diacylglycerol O-acyltransferase 2 (Dgat2)-GFP onto the bacteria. Dictyostelium knockout mutants for both Dgat enzymes are unable to generate LDs. Instead, the excess of exogenous FAs is esterified predominantly into phospholipids, inducing uncontrolled proliferation of the endoplasmic reticulum (ER). Strikingly, in absence of host LDs, M. marinum alternatively exploits these phospholipids, resulting in rapid reversal of ER-proliferation. In addition, the bacteria are unable to restrict their acquisition of lipids from the dgat1&2 double knockout leading to vast accumulation of ILIs. Recent data indicate that the presence of ILIs is one of the characteristics of dormant mycobacteria. During Dictyostelium infection, ILI formation in M. marinum is not accompanied by a significant change in intracellular growth and a reduction in metabolic activity, thus providing evidence that storage of neutral lipids does not necessarily induce dormancy.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.