Evidence map›Paper›PMID 35377191›Full record

ArticleMicrobiology spectrum2022

Host Polyunsaturated Fatty Acids Potentiate Aminoglycoside Killing of Staphylococcus aureus.

William N Beavers, Matthew J Munneke, Alex R Stackhouse, Jeffrey A Freiberg, Eric P Skaar

Open access · goldAbstract read
In one paragraph

Article in Microbiology spectrum, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.7field-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

16 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  4. Host-driven remodelling of theMicrobiology (Reading, England) · 2026
    Review
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  6. Defects in anaplerotic metabolism sensitizeMicrobiology spectrum · 2025
    Article
  7. Review
  8. Review
  9. Article
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  16. Review
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 3 institutions in 1 country.

William N BeaversDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA.ORCID 0000-0002-0285-7775
Matthew J MunnekeDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA.
Alex R StackhouseDepartment of Pathobiological Sciences, Louisiana State Universitygrid.64337.35 and Agricultural and Mechanical College, School of Veterinary Medicine, Baton Rouge, Louisiana, USA.
Jeffrey A FreibergDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA.ORCID 0000-0002-5788-1481
Eric P SkaarDepartment of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Centergrid.412807.8, Nashville, Tennessee, USA.ORCID 0000-0001-5094-8105
Louisiana State University · USVanderbilt University Medical Center · USVanderbilt University · US

Funding

TRAINING PROGRAM IN ENVIRONMENTAL TOXICOLOGYT32ES007028 · NIEHS · VANDERBILT UNIVERSITY · PI F PETER Guengerich, Fiona Edith Harrison · 1985 to 2026
$15.7M
Vanderbilt Infection Pathogenesis and Epidemiology Research Training ProgramT32AI007474 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI KALAMS, SPYROS A · 1995 to 2025
$6.9M
Pathobiology of heme inducible transporters in Gram positive pathogensR01AI073843 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2009 to 2025
$5.9M
Mechanism and function of heme-iron utilization in staphylococcal pathogenesisR01AI069233 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2006 to 2020
$5.6M
The Staphylococcus aureus response to nutrient zinc restriction during infectionR01AI150701 · NIAID · VANDERBILT UNIVERSITY MEDICAL CENTER · PI SKAAR, ERIC P · 2020 to 2024
$2.1M
NIAID NIH HHS R01 AI069233NIAID NIH HHS R01 AI073843NIAID NIH HHS R01 AI150701NIAID NIH HHS T32 AI007474NIEHS NIH HHS T32 ES007028
6 · The paper itself

Abstract

Aminoglycoside antibiotics rely on the proton motive force to enter the bacterial cell, and facultative anaerobes like Staphylococcus aureus can shift energy generation from respiration to fermentation, becoming tolerant of aminoglycosides. Following this metabolic shift, high concentrations of aminoglycosides are required to eradicate S. aureus infections, which endangers the host due to the toxicity of aminoglycosides. Membrane-disrupting molecules prevent aminoglycoside tolerance in S. aureus by facilitating passive entry of the drug through the membrane. Polyunsaturated fatty acids (PUFAs) increase membrane permeability when incorporated into S. aureus. Here, we report that the abundant host-derived PUFA arachidonic acid increases the susceptibility of S. aureus to aminoglycosides, decreasing the aminoglycoside concentration needed to kill S. aureus. We demonstrate that PUFAs and aminoglycosides synergize to kill multiple strains of S. aureus, including both methicillin-resistant and -susceptible S. aureus. We also present data showing that PUFAs and aminoglycosides effectively kill S. aureus small colony variants, strains that are particularly recalcitrant to killing by many antibiotics. We conclude that cotreatment with PUFAs, which are molecules with low host toxicity, and aminoglycosides decreases the aminoglycoside concentration necessary to kill S. aureus, lowering the toxic side effects to the host associated with prolonged aminoglycoside exposure.

Indexed as

AminoglycosidesStaphylococcal InfectionsAnti-Bacterial AgentsFatty Acids, UnsaturatedHumansMicrobial Sensitivity TestsStaphylococcus aureusAminoglycosidesAnti-Bacterial AgentsFatty Acids, Unsaturatedaminoglycosideantibiotic tolerancearachidonic acidgentamicinlinoleic acidMRSApersisterpolyunsaturated fatty acidPUFAsmall colony variantStaphylococcus aureus

Identifiers

PMID35377191
PMCPMC9045252
OpenAlexW4225089677

What OpenQuestion holds

Textmetadata
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.