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Extensive Expression of the Virulome Related to Antibiotic Genotyping in Nosocomial Strains of Klebsiella pneumoniae

التفاصيل البيبلوغرافية
العنوان: Extensive Expression of the Virulome Related to Antibiotic Genotyping in Nosocomial Strains of Klebsiella pneumoniae
المؤلفون: Gloria Luz Paniagua-Contreras, Areli Bautista-Cerón, Rosario Morales-Espinosa, Gabriela Delgado, Felipe Vaca-Paniagua, Clara Estela Díaz-Velásquez, Aldo Hugo de la Cruz-Montoya, Luis Rey García-Cortés, María Patricia Sánchez-Yáñez, Eric Monroy-Pérez
المصدر: International Journal of Molecular Sciences, Vol 24, Iss 19, p 14754 (2023)
بيانات النشر: MDPI AG, 2023.
سنة النشر: 2023
المجموعة: LCC:Biology (General)
LCC:Chemistry
مصطلحات موضوعية: multidrug-resistant, virulome expression, antimicrobial resistance genotype, pulse field gel electrophoresis, Biology (General), QH301-705.5, Chemistry, QD1-999
الوصف: The emergence of hyper-virulent and multidrug-resistant (MDR) strains of Klebsiella pneumoniae isolated from patients with hospital- and community-acquired infections is a serious health problem that increases mortality. The molecular analysis of virulome expression related to antimicrobial-resistant genotype and infection type in K. pneumoniae strains isolated from patients with hospital- and community-acquired infections has been poorly studied. In this study, we analyzed the overall expression of the virulence genotype associated with the antimicrobial resistance genotype and pulse field gel electrophoresis (PFGE) type (PFtype) in K. pneumoniae. We studied 25 strains of K. pneumoniae isolated from patients who developed bacteremia and pneumonia during their hospital stay and 125 strains from outpatients who acquired community-acquired infections. Susceptibility to 12 antimicrobials was determined by Kirby–Bauer. The identification of K. pneumoniae and antibiotic-resistance genes was performed using polymerase chain reaction (PCR). To promote the expression of the virulence genes of K. pneumoniae, an in vitro infection model was used in human epithelial cell lines A549 and A431. Bacterial RNA was extracted with the QIAcube robotic workstation, and reverse transcription to cDNA was performed with the Reverse Transcription QuantiTect kit (Qiagen). The determination of the expression of the virulence genes was performed by real-time PCR. In addition, 57.3% (n = 86) of the strains isolated from patients with hospital- and community-acquired infections were multidrug-resistant (MDR), mainly to beta-lactam antibiotics (CB, AM, CFX, and CF), aminoglycosides (GE), quinolones (CPF and NOF), nitrofurantoin (NF), and sulfamethoxazole/trimethoprim (SXT). The most frequently expressed genes among strains isolated from hospital- and community-acquired infections were adhesion-type, ycfm (80%), mrkD (51.3%), and fimH (30.7%); iron uptake, irp2 (84%), fyuA (68.7%), entB (64.7%), and irp1 (56.7%); and protectins, rpmA (26%), which were related to antibiotic-resistance genes, blaTEM (96%), blaSHV (64%), blaCITM (52.6%), blaCTXM-1 (44.7%), tetA (74%), sul1 (57.3%), aac(3)-IV (40.7%), and aadA1 (36%). The results showed the existence of different patterns of expression of virulome related to the genotype of resistance to antimicrobials and to the PFtypes in the strains of K. pneumoniae that cause hospital- and community-acquired infections. These findings are important and may contribute to improving medical treatment strategies against infections caused by K. pneumoniae.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1422-0067
1661-6596
Relation: https://www.mdpi.com/1422-0067/24/19/14754; https://doaj.org/toc/1661-6596; https://doaj.org/toc/1422-0067
DOI: 10.3390/ijms241914754
URL الوصول: https://doaj.org/article/da54d38e4ff54ea6b16e706f17a01674
رقم الأكسشن: edsdoj.54d38e4ff54ea6b16e706f17a01674
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:14220067
16616596
DOI:10.3390/ijms241914754