Alkylated EDTA potentiates antibacterial photodynamic activity of protoporphyrin.


Journal

Journal of nanobiotechnology
ISSN: 1477-3155
Titre abrégé: J Nanobiotechnology
Pays: England
ID NLM: 101152208

Informations de publication

Date de publication:
08 Apr 2024
Historique:
received: 08 12 2023
accepted: 20 02 2024
medline: 9 4 2024
pubmed: 9 4 2024
entrez: 8 4 2024
Statut: epublish

Résumé

Antibiotic resistance has garnered significant attention due to the scarcity of new antibiotics in development. Protoporphyrin IX (PpIX)-mediated photodynamic therapy shows promise as a novel antibacterial strategy, serving as an alternative to antibiotics. However, the poor solubility of PpIX and its tendency to aggregate greatly hinder its photodynamic efficacy. In this study, we demonstrate that alkylated EDTA derivatives (aEDTA), particularly C14-EDTA, can enhance the solubility of PpIX by facilitating its dispersion in aqueous solutions. The combination of C14-EDTA and PpIX exhibits potent antibacterial activity against Staphylococcus aureus (S. aureus) when exposed to LED light irradiation. Furthermore, this combination effectively eradicates S. aureus biofilms, which are known to be strongly resistant to antibiotics, and demonstrates high therapeutic efficacy in an animal model of infected ulcers. Mechanistic studies reveal that C14-EDTA can disrupt PpIX crystallization, increase bacterial membrane permeability and sequester divalent cations, thereby improving the accumulation of PpIX in bacteria. This, in turn, enhances reactive oxygen species (ROS) production and the antibacterial photodynamic activity. Overall, this effective strategy holds great promise in combating antibiotic-resistant strains.

Identifiants

pubmed: 38589895
doi: 10.1186/s12951-024-02353-3
pii: 10.1186/s12951-024-02353-3
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

161

Subventions

Organisme : National Key Research and Development Program of China
ID : 2021YFA1201200
Organisme : National Natural Science Foundation of China
ID : 51833008
Organisme : Key Research and Development Program of Zhejiang Province
ID : 2020C01123
Organisme : Fundamental Research Funds for the Central Universities
ID : 226-2023-00022
Organisme : Basic Public Welfare Research Program of Zhejiang Province
ID : LGC21B040001
Organisme : Natural Sciences and Engineering Research Council of Canada
ID : ALLRP 570723 - 21

Informations de copyright

© 2024. The Author(s).

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Auteurs

Ying Piao (Y)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.

Sebastian Himbert (S)

Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 3Z5, Canada. himberts@mcmaster.ca.

Zifan Li (Z)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.

Jun Liu (J)

Suncor AgroScience, Mississauga, ON, L5K 1A8, Canada.

Zhihao Zhao (Z)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.

Huahai Yu (H)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.

Shuangshuang Liu (S)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China.

Shiqun Shao (S)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China. shiqun.shao@zju.edu.cn.

Michael Fefer (M)

Suncor AgroScience, Mississauga, ON, L5K 1A8, Canada.

Maikel C Rheinstädter (MC)

Department of Physics and Astronomy, McMaster University, Hamilton, ON, L8S 3Z5, Canada. rheinstadter@mcmaster.ca.

Youqing Shen (Y)

Zhejiang Key Laboratory of Smart Biomaterials and Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310058, China. shenyq@zju.edu.cn.

Classifications MeSH