Genomic islands associated with the dissemination of multidrug resistance in clinically important pathogenic bacteria.

Bibliographic Details
Title: Genomic islands associated with the dissemination of multidrug resistance in clinically important pathogenic bacteria.
Authors: Wang XQ; College of Life Sciences, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Green Development Key Laboratory of Sichuan Province, Sichuan University, Chengdu, People's Republic of China., Xu L; College of Life Sciences, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Green Development Key Laboratory of Sichuan Province, Sichuan University, Chengdu, People's Republic of China., Du MJ; College of Life Sciences, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Green Development Key Laboratory of Sichuan Province, Sichuan University, Chengdu, People's Republic of China., Wang HN; College of Life Sciences, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Green Development Key Laboratory of Sichuan Province, Sichuan University, Chengdu, People's Republic of China., Lei CW; College of Life Sciences, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, Animal Disease Prevention and Green Development Key Laboratory of Sichuan Province, Sichuan University, Chengdu, People's Republic of China. Electronic address: leichangwei@scu.edu.cn.
Source: Journal of global antimicrobial resistance [J Glob Antimicrob Resist] 2026 May; Vol. 48, pp. 1-11. Date of Electronic Publication: 2026 Feb 20.
Publication Type: Journal Article; Review
Language: English
Journal Info: Publisher: Published by Elsevier Ltd. on behalf of International Society of Chemotherapy for Infection and Cancer Country of Publication: Netherlands NLM ID: 101622459 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2213-7173 (Electronic) Linking ISSN: 22137165 NLM ISO Abbreviation: J Glob Antimicrob Resist Subsets: MEDLINE
Imprint Name(s): Original Publication: Amsterdam : Published by Elsevier Ltd. on behalf of International Society of Chemotherapy for Infection and Cancer
MeSH Terms: Drug Resistance, Multiple, Bacterial*/genetics , Bacteria*/genetics , Bacteria*/drug effects , Genomic Islands* , Gene Transfer, Horizontal*, Anti-Bacterial Agents/pharmacology ; Bacterial Infections/microbiology ; Humans
Abstract: Objectives: To elucidate the role of genomic islands (GIs) as key vehicles of horizontal gene transfer in disseminating antibiotic-resistance genes (ARGs) across bacterial species and in fostering multidrug-resistant (MDR) strain emergence, and to provide a comprehensive overview of current knowledge.
Methods: We integrated recent literature on mobile genomic islands (GIs), summarized their basic architecture and functional features, systematically catalogued the types/subtypes of resistance islands identified in major epidemic pathogens (Salmonella, Proteus mirabilis, Staphylococcus aureus, Acinetobacter baumannii, etc.), and delineated their horizontal transfer mechanisms.
Results: (1) GIs can integrate into host chromosomes, excise under specific cues, and transfer to new recipients, thereby facilitating the spread of clinically important ARGs. (2) Diverse novel multidrug-resistant genomic islands have been characterized in the above pathogens.
Conclusions: GIs are one of the key vehicles that facilitate the dissemination of ARGs and the evolution of bacterial multidrug resistance. A systematic understanding of their structure, transfer mechanisms and core functions offers a reference framework for future surveillance of multidrug-resistant genomic islands and for developing countermeasures against antimicrobial resistance.
(Copyright © 2026 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
Contributed Indexing: Keywords: Dissemination; Genomic islands; Multidrug resistance; Pathogenic bacteria
Substance Nomenclature: 0 (Anti-Bacterial Agents)
Entry Date(s): Date Created: 20260222 Date Completed: 20260708 Latest Revision: 20260708
Update Code: 20260708
DOI: 10.1016/j.jgar.2026.02.007
PMID: 41724354
Database: MEDLINE
Description
ISSN:2213-7173
DOI:10.1016/j.jgar.2026.02.007