Evidence map›Paper›PMID 40965309›Full record

ArticleSmall (Weinheim an der Bergstrasse, Germany)2025

A Self-Assembling Peptide with Nanoparticle-to-Fibril Transformation Exhibits Multimodal Antimicrobial Activity through Membrane Disruption and Quorum-Sensing Inhibition.

James Mwangi, Demeke Asmamaw, Min Yang, Dawit Adisu Tadese, Brenda B Michira, Yi Wang, Sheng-Wen Zhou, Gan Wang, Ziyi Wang, Qiu-Min Lu and 1 more

Abstract read
In one paragraph

Article in Small (Weinheim an der Bergstrasse, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. 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

11 authors.

James MwangiEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.ORCID 0000-0002-5467-9675
Demeke AsmamawEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Min YangEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Dawit Adisu TadeseEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Brenda B MichiraEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Yi WangEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Sheng-Wen ZhouEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Gan WangEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Ziyi WangEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Qiu-Min LuEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.
Ren LaiEngineering Laboratory of Peptides of Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, National Research Facility for Phenotypic & Genetic Analysis of Model Animals (Primate Facility), and Sino-African Joint Research Center, New Cornerstone Science Laboratory, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, 650223, China.ORCID 0000-0002-3123-2336

Funding

Chinese Academy of Sciences and the World Academy of Sciences (CAS-TWAS) President's Fellowship Program 2019A8010415001Kunming Science and Technology Bureau 2022SCP007National Natural Science Foundation of China 31930015National Natural Science Foundation of China 32002311National Natural Science Foundation of China 32070443National Natural Science Foundation of China U2002219New Cornerstone Investigator Program from Shenzhen New Cornerstone Science Foundation NCI202238Tianfu Jincheng Laboratory Foundation TFJC2023010007Yunnan Characteristic Plant Extraction Laboratory 2022YKZY006Yunnan Provincial Science and Technology Department 202001AT070128Yunnan Provincial Science and Technology Department 202003AD150008
6 · The paper itself

Abstract

Quorum sensing (QS) plays a crucial role in biofilm formation, virulence, and antibiotic resistance, making it an attractive target for combating multidrug-resistant pathogens. Here, self-assembling peptides are designed by incorporating amphiphilic monomers with distinct hydrophobic and hydrophilic termini to achieve optimal self-assembly dynamics and interaction with bacterial membranes. The lead peptide, SAP2-PEG, spontaneously forms nanoparticles that transform into fibrillar networks under membrane-mimicking conditions. The peptide exhibits potent antimicrobial activity against critical nosocomial pathogens at low micromolar concentrations and disrupts both pre-formed and nascent polymicrobial biofilms. Mechanistically, SAP2-PEG disrupts bacterial membranes while simultaneously inhibiting QS by downregulating key genes, including the las and rh1 systems in Pseudomonas aeruginosa, and the agr system components in Staphylococcus aureus, as validated through transcriptome analysis. Notably, the peptide showed effectiveness against polymicrobial biofilms in both wound and catheter-associated infections. In vivo, it significantly reduced P. aeruginosa lung and S. aureus systemic infection. These findings establish SAP2-PEG as a promising therapeutic candidate that combines direct antimicrobial action with QS disruption for combating biofilm-associated infections.

Indexed as

Anti-Infective AgentsCell MembraneNanoparticlesPeptidesQuorum SensingAnimalsAnti-Bacterial AgentsBiofilmsMiceMicrobial Sensitivity TestsPseudomonas aeruginosaStaphylococcus aureusAnti-Bacterial AgentsAnti-Infective AgentsPeptidesantimicrobial resistancepolymicrobial biofilmsquorum sensingself‐assembly

Identifiers

PMID40965309
PMCPMC12590517

What OpenQuestion holds

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LicenceCC BY-NC
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.