Evidence map›Paper›PMID 37682912›Full record

ArticlePloS one2023

Inhibition of β-lactamase function by de novo designed peptide.

Arunima Mishra, Irena Cosic, Ivan Loncarevic, Drasko Cosic, Hansel M Fletcher

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 53% 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

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. Review
  3. 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

5 authors at 1 institution in 1 country.

Arunima MishraDivision of Microbiology & Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, California, United States America.ORCID 0009-0001-1768-9954
Irena CosicAMALNA Consulting, Black Rock, Melbourne, VIC, Australia.
Ivan LoncarevicQuantBioRes-QBR A/S, Copenhagen, Denmark.
Drasko CosicAMALNA Consulting, Black Rock, Melbourne, VIC, Australia.
Hansel M FletcherDivision of Microbiology & Molecular Genetics, School of Medicine, Loma Linda University, Loma Linda, California, United States America.
Loma Linda University · US

Funding

Studies on the virulence regulation in PorphyromonasR01DE025852 · NIDCR · LOMA LINDA UNIVERSITY · PI FLETCHER, HANSEL M. · 2016 to 2020
$2.0M
Mechanisms for the repair of oxidative stress-induced DNA damage in PorphyromonasR21DE030411 · NIDCR · LOMA LINDA UNIVERSITY · PI FLETCHER, HANSEL M. · 2021 to 2022
$435k
Oxidative Stress Resistance Mechanisms in Filifactor AlocisR03DE029825 · NIDCR · LOMA LINDA UNIVERSITY · PI MISHRA, ARUNIMA · 2021 to 2022
$316k
NIDCR NIH HHS R01 DE025852NIDCR NIH HHS R03 DE029825NIDCR NIH HHS R21 DE030411
6 · The paper itself

Abstract

Antimicrobial resistance is a great public health concern that is now described as a "silent pandemic". The global burden of antimicrobial resistance requires new antibacterial treatments, especially for the most challenging multidrug-resistant bacteria. There are various mechanisms by which bacteria develop antimicrobial resistance including expression of β-lactamase enzymes, overexpression of efflux pumps, reduced cell permeability through downregulation of porins required for β-lactam entry, or modifications in penicillin-binding proteins. Inactivation of the β-lactam antibiotics by β-lactamase enzymes is the most common mechanism of bacterial resistance to these agents. Although several effective small-molecule inhibitors of β-lactamases such as clavulanic acid and avibactam are clinically available, they act only on selected class A, C, and some class D enzymes. Currently, none of the clinically approved inhibitors can effectively inhibit Class B metallo-β-lactamases. Additionally, there is increased resistance to these inhibitors reported in several bacteria. The objective of this study is to use the Resonant Recognition Model (RRM), as a novel strategy to inhibit/modulate specific antimicrobial resistance targets. The RRM is a bio-physical approach that analyzes the distribution of energies of free electrons and posits that there is a significant correlation between the spectra of this energy distribution and related protein biological activity. In this study, we have used the RRM concept to evaluate the structure-function properties of a group of 22 β-lactamase proteins and designed 30-mer peptides with the desired RRM spectral periodicities (frequencies) to function as β-lactamase inhibitors. In contrast to the controls, our results indicate 100% inhibition of the class A β-lactamases from Escherichia coli and Enterobacter cloacae. Taken together, the RRM model can likely be utilized as a promising approach to design β-lactamase inhibitors for any specific class. This may open a new direction to combat antimicrobial resistance.

Indexed as

beta-Lactamase Inhibitorsbeta-LactamasesClavulanic AcidDown-RegulationEscherichia coliPeptidesbeta-Lactamase Inhibitorsbeta-LactamasesClavulanic AcidPeptides

Identifiers

PMID37682912
PMCPMC10490870
OpenAlexW4386560165

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.