Whole genome sequencing insight into carbapenem-resistant and multidrug-resistant Acinetobacter baumannii harboring chromosome-borne bla OXA-23 .

التفاصيل البيبلوغرافية
العنوان:	Whole genome sequencing insight into carbapenem-resistant and multidrug-resistant Acinetobacter baumannii harboring chromosome-borne bla OXA-23 .
المؤلفون:	Wang W; Department of Pulmonary and Critical Care Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China.; Department of Critical Care Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Weng J; School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China., Wei J; Department of Clinical Laboratory, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Zhang Q; Department of Clinical Laboratory, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Zhou Y; Department of Anesthesiology, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., He Y; Department of Pulmonary and Critical Care Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Zhang L; Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Li W; Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Zhang Y; Department of Pulmonary and Critical Care Medicine, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Zhang Z; Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China., Li X; Guangdong Provincial Key Laboratory of Tumor Interventional Diagnosis and Treatment, Zhuhai People's Hospital (Zhuhai Clinical Medical College of Jinan University), Zhuhai, China.
المصدر:	Microbiology spectrum [Microbiol Spectr] 2024 Aug 05, pp. e0050124. Date of Electronic Publication: 2024 Aug 05.
Publication Model:	Ahead of Print
نوع المنشور:	Journal Article
اللغة:	English
بيانات الدورية:	Publisher: ASM Press Country of Publication: United States NLM ID: 101634614 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2165-0497 (Electronic) Linking ISSN: 21650497 NLM ISO Abbreviation: Microbiol Spectr Subsets: MEDLINE
أسماء مطبوعة:	Original Publication: Washington, DC : ASM Press, 2013-
مستخلص:	Carbapenem-resistant Acinetobacter baumannii (CRAB) poses a significant threat to hospitalized patients as effective therapeutic options are scarce. Based on the genomic characteristics of the CRAB strain AB2877 harboring chromosome-borne bla OXA-23 , which was isolated from the bronchoalveolar lavage fluid (BALF) of a patient in a respiratory intensive care unit (RICU), we systematically analyzed antibiotic resistance genes (ARGs) and the genetic context associated with ARGs carried by CRAB strains harboring chromosome-borne bla OXA-23 worldwide. Besides bla OXA-23 , other ARGs were detected on the chromosome of the CRAB strain AB2877 belonging to ST208/1806 (Oxford MLST scheme). Several key genetic contexts associated with the ARGs were identified on the chromosome of the CRAB strain AB2877, including (1) the MDR region associated with bla OXA-23 , tet(B)-tetR(B ), aph(3'')-Ib, and aph(6)-Id (2); the resistance island AbGRI3 harboring armA and mph(E)-msr(E ) (3); the Tn 3 -like composite transposon containing bla TEM-1D and aph(3')-Ia ; and (4) the structure "IS Aba1-bla ADC-25 ." The first two genetic contexts were most common in ST195/1816, followed by ST208/1806. The last two genetic contexts were found most frequently in ST208/1806, followed by ST195/1816.IMPORTANCEThe bla OXA-23 gene can be carried by plasmid or chromosome, facilitating horizontal genetic transfer and increasing carbapenem resistance in healthcare settings. In this study, we focused on the genomic characteristics of CRAB strains harboring the chromosome-borne bla OXA-23 gene, and the important genetic contexts associated with bla OXA-23 and other ARGs were identified, and their prevalent clones worldwide were determined. Notably, although the predominant clonal CRAB lineages worldwide containing the MDR region associated with bla OXA-23 , tet(B)-tetR(B ), aph(3'')-Ib, and aph (6)-Id was ST195/1816, followed by ST208/1806, the CRAB strain AB2877 in our study belonged to ST208/1806. Our findings contribute to the knowledge regarding the dissemination of CRAB strains and the control of nosocomial infection.
فهرسة مساهمة:	Keywords: ST; carbapenem-resistant Acinetobacter baumannii; chromosome-borne blaOXA-23; comparative genomic analysis; genetic context
تواريخ الأحداث:	Date Created: 20240805 Latest Revision: 20240805
رمز التحديث:	20240805
DOI:	10.1128/spectrum.00501-24
PMID:	39101706
قاعدة البيانات:	MEDLINE

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