Evidence map›Paper›PMID 30816122›Full record

ArticleScientific reports2019

Complement-dependent outer membrane perturbation sensitizes Gram-negative bacteria to Gram-positive specific antibiotics.

D A C Heesterbeek, N I Martin, A Velthuizen, M Duijst, M Ruyken, R Wubbolts, S H M Rooijakkers, B W Bardoel

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. 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 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

53 citing papers in PubMed, 86 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

D A C HeesterbeekMedical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
N I MartinInstitute of Biology Leiden, Leiden University, Leiden, Netherlands.
A VelthuizenMedical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
M DuijstMedical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
M RuykenMedical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
R WubboltsDepartment of Biochemistry and Cell Biology, Utrecht University, Utrecht, Netherlands.
S H M RooijakkersMedical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands.
B W BardoelMedical Microbiology, University Medical Center Utrecht, Utrecht University, Utrecht, Netherlands. b.w.bardoel-2@umcutrecht.nl.ORCID 0000-0001-6450-277X
Utrecht University · NLLeiden University · NL

Funding

European Research Council 639209
6 · The paper itself

Abstract

Gram-negative bacteria are refractory to the action of many antibiotics due to their impermeable outer membrane. An important player of the immune system is the complement system, a protein network in serum that directly kills Gram-negative bacteria through pore-formation by the Membrane Attack Complexes (MAC). We here show that the MAC rapidly perforates the outer membrane but that inner membrane damage, which is essential for killing, is relatively slow. Importantly, we demonstrate that MAC-induced outer membrane damage sensitizes Gram-negative bacteria to otherwise ineffective, Gram-positive-specific, antimicrobials. Synergy between serum and nisin was observed for 22 out of 53 tested Gram-negative clinical isolates and for multi-drug resistant (MDR) blood isolates. The in vivo relevance of this process is further highlighted by the fact that blood sensitizes a MDR K. pneumoniae strain to vancomycin. Altogether, these data imply that antibiotics that are considered ineffective to treat infections with Gram-negatives may have different functional outcomes in patients, due to the presence of the complement system.

Indexed as

Anti-Bacterial AgentsBacterial Outer MembraneComplement Membrane Attack ComplexComplement System ProteinsDrug Resistance, Multiple, BacterialGram-Negative BacteriaGram-Negative Bacterial InfectionsGram-Positive BacteriaHumansNisinVancomycinAnti-Bacterial AgentsComplement Membrane Attack ComplexComplement System ProteinsNisinVancomycin

Identifiers

PMID30816122
PMCPMC6395757
OpenAlexW2915235351

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.