Evidence map›Paper›PMID 29718242›Full record

ArticleThe Journal of antimicrobial chemotherapy2018

Daptomycin selects for genetic and phenotypic adaptations leading to antibiotic tolerance in MRSA.

Andrew D Berti, Neehal Shukla, Aaron D Rottier, J Sue McCrone, Hannah M Turner, Ian R Monk, Sarah L Baines, Benjamin P Howden, Richard A Proctor, Warren E Rose

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of antimicrobial chemotherapy, 2018. 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
1.9field-weighted citation impact, top 15% 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, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. The Secondary Resistome of Methicillin-ResistantAntibiotics (Basel, Switzerland) · 2025
    Article
  4. Review
  5. The Complex Intracellular Lifecycle ofInternational journal of molecular sciences · 2024
    Review
  6. ClinicalmSphere · 2023
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. 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

10 authors at 3 institutions in 2 countries.

Andrew D BertiPharmacy Practice Division, University of Wisconsin-Madison, Madison, WI, USA.
Neehal ShuklaPharmacy Practice Division, University of Wisconsin-Madison, Madison, WI, USA.
Aaron D RottierPharmacy Practice Division, University of Wisconsin-Madison, Madison, WI, USA.
J Sue McCronePharmacy Practice Division, University of Wisconsin-Madison, Madison, WI, USA.
Hannah M TurnerPharmacy Practice Division, University of Wisconsin-Madison, Madison, WI, USA.
Ian R MonkDoherty Applied Microbial Genomics, Department of Microbiology and Immunology, The University of Melbourne at the Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
Sarah L BainesDoherty Applied Microbial Genomics, Department of Microbiology and Immunology, The University of Melbourne at the Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
Benjamin P HowdenDoherty Applied Microbial Genomics, Department of Microbiology and Immunology, The University of Melbourne at the Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
Richard A ProctorDepartment of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI, USA.
Warren E RosePharmacy Practice Division, University of Wisconsin-Madison, Madison, WI, USA.
University of Wisconsin–Madison · USPeter Doherty Institute · AUWayne State University · US

Funding

Mechanisms and use of penicillin-binding protein inhibition to optimize cationic peptide anti-MRSA treatmentR01AI132627 · NIAID · UNIVERSITY OF WISCONSIN-MADISON · PI ROSE, WARREN E · 2017 to 2021
$2.1M
NIAID NIH HHS R01 AI132627
6 · The paper itself

Abstract

Objectives: Daptomycin non-susceptibility in Staphylococcus aureus can emerge via the accumulation of single or multiple mutations, each resulting in a slight increase in the daptomycin MIC. The daptomycin-non-susceptible phenotype may include other features such as daptomycin tolerance. This study identifies S. aureus genomic regions that frequently develop mutations following prolonged daptomycin exposure but have not been previously associated with daptomycin non-susceptibility. Methods: Sequence variations in the same eight loci independently observed following 28 day parallel serial passages of S. aureus J01 in daptomycin were introduced in isolation into S. aureus J01. MICs were determined by microbroth dilution. Daptomycin killing and tolerance were determined by kill curve analysis. Results: Single mutations in snoF, hmp1, sspA, rimP, hepT, rsh, map1 and amaP had only a modest impact on the daptomycin MIC (≤2-fold). In contrast, individual mutation in several of these regions resulted in pronounced changes to daptomycin tolerance. Conclusions: This study demonstrates that less characterized mutations in S. aureus following daptomycin exposure do not result in significant daptomycin susceptibility changes, but rather allow for enhanced survival characteristics during treatment. This sheds new light on genetic adaptations that may play a role in persistent infection. Further studies are needed to elucidate the prevalence of these mutations in clinical isolates.

Indexed as

Anti-Bacterial AgentsDaptomycinDNA, BacterialDNA Mutational AnalysisDrug Resistance, Multiple, BacterialGenes, BacterialMethicillin-Resistant Staphylococcus aureusMicrobial Sensitivity TestsPhenotypeAnti-Bacterial AgentsDaptomycinDNA, Bacterial

Identifiers

PMID29718242
PMCPMC6054297
OpenAlexW2799513023

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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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.