Evidence map›Paper›PMID 24366742›Full record

ArticleAntimicrobial agents and chemotherapy2014

Ceftaroline restores daptomycin activity against daptomycin-nonsusceptible vancomycin-resistant Enterococcus faecium.

George Sakoulas, Warren Rose, Poochit Nonejuie, Joshua Olson, Joseph Pogliano, Romney Humphries, Victor Nizet

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
5.4field-weighted citation impact, top 3% 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

51 citing papers in PubMed, 92 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Combination Antibiotic Therapy for Orthopedic Infections.Antibiotics (Basel, Switzerland) · 2025
    Review
  5. Vancomycin-ResistantJournal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2025
    Article
  6. Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. Pharmacodynamic Analysis of Daptomycin-treated Enterococcal Bacteremia: It Is Time to Change the Breakpoint.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2019
    Observational
  20. 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

7 authors at 3 institutions in 1 country.

George SakoulasUniversity of California San Diego School of Medicine, La Jolla, California, USA.
Warren Rose
Poochit Nonejuie
Joshua Olson
Joseph Pogliano
Romney Humphries
Victor Nizet
University of California, San Diego · USUniversity of California, Los Angeles · USUniversity of Wisconsin–Madison · US

Funding

Vaccines and Therapies Against BotulismU54AI057153 · NIAID · UNIVERSITY OF CHICAGO · PI SHUMAN, HOWARD A · 2003 to 2013
$87.6M
Cathelicidins in Skin ImmunityR01AI052453 · NIAID · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI GALLO, RICHARD L, NIZET, VICTOR · 2002 to 2017
$5.3M
Cathelicidin in Skin ImmunityR37AI052453 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Richard L Gallo, Victor Nizet · 2019 to 2026
$4.6M
TRAINING & OUTREACH COREU54HD071600 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI BEST, BROOKIE MANNING · 2011 to 2015
$3.6M
DNA segregation during Bacillus growth and developmentR01GM073898 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI POGLIANO, JOSEPH A · 2006 to 2013
$2.4M
NIAID NIH HHS AI057153NIAID NIH HHS R01 AI052453NIAID NIH HHS R37 AI052453NIAID NIH HHS U54 AI057153NICHD NIH HHS U54 HD071600-01 09/26/2011-06/30/2016NIGMS NIH HHS R01 GM073898NIGMS NIH HHS R01GM073898
6 · The paper itself

Abstract

Daptomycin-nonsusceptible vancomycin-resistant Enterococcus faecium (VRE) strains are a formidable emerging threat to patients with comorbidities, leaving few therapeutic options in cases of severe invasive infections. Using a previously characterized isogenic pair of VRE strains from the same patient differing in their daptomycin susceptibilities (Etest MICs of 0.38 mg/liter and 10 mg/liter), we examined the effect of ceftaroline, ceftriaxone, and ampicillin on membrane fluidity and susceptibility of VRE to surface binding and killing by daptomycin and human cathelicidin antimicrobial peptide LL37. Synergy was noted in vitro between daptomycin, ampicillin, and ceftaroline for the daptomycin-susceptible VRE strain, but only ceftaroline showed synergy against the daptomycin-nonsusceptible VRE strain (∼2 log10 CFU reduction at 24 h). Ceftaroline cotreatment increased daptomycin surface binding with an associated increase in membrane fluidity and an increase in the net negative surface charge of the bacteria as evidenced by increased poly-l-lysine binding. Consistent with the observed biophysical changes, ceftaroline resulted in increased binding and killing of daptomycin-nonsusceptible VRE by human cathelicidin LL37. Using a pair of daptomycin-susceptible/nonsusceptible VRE strains, we noted that VRE is ceftaroline resistant, yet ceftaroline confers significant effects on growth rate as well as biophysical changes on the cell surface of VRE that can potentiate the activity of daptomycin and innate cationic host defense peptides, such as cathelicidin. Although limited to just 2 strains, these finding suggest that additional in vivo and in vitro studies need to be done to explore the possibility of using ceftaroline as adjunctive anti-VRE therapy.

Indexed as

Anti-Bacterial AgentsCeftarolineCell WallCephalosporinsDaptomycinDrug SynergismEnterococcus faeciumIn Vitro TechniquesMembrane FluidityMicrobial Sensitivity TestsVancomycin ResistanceAnti-Bacterial AgentsCeftarolineCephalosporinsDaptomycin

Identifiers

PMID24366742
PMCPMC3957885
OpenAlexW2140427502

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.