Evidence map›Paper›PMID 18086848›Full record

ArticleAntimicrobial agents and chemotherapy2008

Resistance of Porphyromonas gingivalis ATCC 33277 to direct killing by antimicrobial peptides is protease independent.

Gilad Bachrach, Hamutal Altman, Paul E Kolenbrander, Natalia I Chalmers, Michal Gabai-Gutner, Amram Mor, Michael Friedman, Doron Steinberg

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

28 citing papers in PubMed, 44 citations in OpenAlex.

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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

8 authors at 4 institutions in 2 countries.

Gilad BachrachInstitute of Dental Sciences, The Hebrew University-Hadassah School of Dental Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel. giladba@ekmd.huji.ac.il
Hamutal Altman
Paul E Kolenbrander
Natalia I Chalmers
Michal Gabai-Gutner
Amram Mor
Michael Friedman
Doron Steinberg
Hebrew University of Jerusalem · ILNational Institute of Dental and Craniofacial Research · USNational Institutes of Health · USTechnion – Israel Institute of Technology · IL

Funding

Interactions Between Actinomyces And Other BacteriaZ01DE000273 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI KOLENBRANDER, PAUL E · 1985 to 2008
$1.9M
Cell-cell Interactions Between Oral Actinomyces And Other BacteriaZIADE000273 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI KOLENBRANDER, PAUL E · 2009 to 2009
$679k
6 · The paper itself

Abstract

Antimicrobial peptides are short, positively charged, amphipathic peptides that possess a wide spectrum of antimicrobial activity and have an important role in the host's innate immunity. Lack of, or dysfunctions in, antimicrobial peptides have been correlated with infectious diseases, including periodontitis. Porphyromonas gingivalis, a gram-negative anaerobe and a major pathogen associated with periodontal diseases, is resistant to antimicrobial peptides of human and nonhuman origin, a feature that likely contributes to its virulence. Expressing a robust proteolytic activity, P. gingivalis hydrolyzes antimicrobial peptides. In this study, P. gingivalis inactivated three antimicrobial peptides, while a d-enantiomer was resistant to degradation. P. gingivalis was resistant to the protease-resistant d-enantiomer peptide, and importantly, a protease-deficient P. gingivalis mutant was also resistant to the antimicrobial peptide. Finally, the binding of a fluorescently labeled antimicrobial peptide to protease-deficient P. gingivalis was much weaker than the binding of susceptible Escherichia coli. Our results suggest that the resistance of P. gingivalis ATCC 33277 to direct killing by antimicrobial peptides is protease independent and results (at least partially) from the low affinity of antimicrobial peptides to P. gingivalis.

Indexed as

Drug Resistance, BacterialAmino Acid SequenceAntimicrobial Cationic PeptidesCathelicidinsHistatinsHumansMicrobial Sensitivity TestsMolecular Sequence DataMutationPeptide HydrolasesPorphyromonas gingivalisAntimicrobial Cationic PeptidesCathelicidinsdhvar4 peptideHistatinsPeptide Hydrolases

Identifiers

PMID18086848
PMCPMC2224744
OpenAlexW2168989126

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.