Evidence map›Paper›PMID 33770266›Full record

ArticleAMB Express2021

Design of a novel antimicrobial peptide 1018M targeted ppGpp to inhibit MRSA biofilm formation.

Zhou Jiale, Jiao Jian, Tan Xinyi, Xie Haoji, Huang Xueqin, Wang Xiao

Open access · goldAbstract read
In one paragraph

Article in AMB Express, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.1field-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

18 citing papers in PubMed, 38 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

6 authors at 2 institutions in 1 country.

Zhou Jiale *Immunology Innovation Team, School of Medicine, Ningbo University, University, 818 Fenghua St., Jiangbei District, Ningbo, 315211, Zhejiang, China.
Jiao Jian *Department of biomedicine, Beijing City University, Beijing, 100094, China.
Tan XinyiImmunology Innovation Team, School of Medicine, Ningbo University, University, 818 Fenghua St., Jiangbei District, Ningbo, 315211, Zhejiang, China.
Xie HaojiImmunology Innovation Team, School of Medicine, Ningbo University, University, 818 Fenghua St., Jiangbei District, Ningbo, 315211, Zhejiang, China.
Huang XueqinImmunology Innovation Team, School of Medicine, Ningbo University, University, 818 Fenghua St., Jiangbei District, Ningbo, 315211, Zhejiang, China.
Wang XiaoImmunology Innovation Team, School of Medicine, Ningbo University, University, 818 Fenghua St., Jiangbei District, Ningbo, 315211, Zhejiang, China. wangxiao@nbu.edu.cn.ORCID http://orcid.org/0000-0002-5579-9759
Ningbo University · CNBeijing City University · CN

Funding

National Natural Science Foundation of China 82002190Natural Science Foundation of Ningbo 2019A610196Research Fund of Ningbo University 421807120, 421906052, 422003802Zhejiang Provincial Natural Science Foundation LY18H280004
6 · The paper itself

Abstract

Methicillin-resistant staphylococcus aureus (MRSA) and its biofilm infection were considered as one of the main international health issues. There are still many challenges for treatment using traditional antibiotics. In this study, a mutant peptide of innate defense regulator (IDR-)1018 named 1018M was designed based on molecular docking and amino acid substitution technology. The antibacterial/biofilm activity and mechanisms against MRSA of 1018M were investigated for the first time. The minimum inhibitory concentration (MIC) of 1018M was reduced 1 time (MIC = 2 μg/mL) compared to IDR-1018. After treatment with 32 μg/mL 1018M for 24 h, the percentage of biofilm decreased by 78.9%, which was more effective than the parental peptide. The results of mechanisms exploration showed that 1018M was more potent than IDR-1018 at destructing bacterial cell wall, permeating cell membrane (20.4%-50.1% vs 1.45%-10.6%) and binding to stringent response signaling molecule ppGpp (increased 27.9%). Additionally, the peptides could also exert their activity by disrupting genomic DNA, regulating the expression of ppGpp metabolism and biofilm forming related genes (RSH, relP, relQ, rsbU, sigB, spA, codY, agrA and icaD). Moreover, the higher temperature, pH and pepsase stabilities provide 1018M better processing, storage and internal environmental tolerance. These data indicated that 1018M may be a potential candidate peptide for the treatment of MRSA and its biofilm infections.

Indexed as

AntibacterialAntibiofilmAntimicrobial peptide 1018MMechanismsMRSAPpGpp

Identifiers

PMID33770266
PMCPMC7997937
OpenAlexW3138975777

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.