1. Integron mediated bacterial resistance and virulence on clinical pathogens.
- Author
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Chen DQ, Jiang YT, Feng DH, Wen SX, Su DH, and Yang L
- Subjects
- Anti-Bacterial Agents pharmacology, Bacteria drug effects, Bacterial Infections, DNA Primers, DNA, Bacterial, Drug Resistance, Bacterial drug effects, Hot Temperature, Humans, Polymerase Chain Reaction methods, Sensitivity and Specificity, Virulence drug effects, Virulence genetics, Bacteria genetics, Drug Resistance, Bacterial genetics, Genes, Bacterial genetics, Integrons genetics, Nucleic Acid Amplification Techniques methods, Virulence Factors genetics
- Abstract
Integron was recognized as mobile elements responsible for the emergence and diffusion of antibiotic resistance, virulence and pathogenicity. The existence of resistant integron in pathogens may consequently lead to the increasing number of clinical failures in bacterial mediated diseases, as well as the expenses. In this study, a total of 22 clinical pathogens (including E. faecalis, S. aureus, K. pneumoniae, Enterobacter, P. aeruginosa and Acinetobacter) were subjected to the identification of class 1-class 3 integrons and drug resistant gene cassettes by high flux LAMP method. According to the results, the clinical isolates were screened as carrying class 1 integron with dfrA12-orfF-aadA2 cassette array, class 1 integron with dfrA17-aadA5 cassette array, class 1 integron with aadA2 cassette, class 1 integron with bla
VIM2 cassette, class 1 and class 2 integron with dfrA1-sat1-aadA1 and dfrA12-orfF-aadA2 cassette arrays simultaneously, which was accordantly with the previous data. The optimized high flux LAMP assay was proceeded in water bath at 65 °C for 60 min and determined by naked eye, with the time consumption restricted within 2.5 h. Prior to conventional PCR method, the high flux LAMP assay was demonstrated as a highly-specific and highly-sensitive method. This study offered a valid LAMP method in resistance integrons detection for laboratory use, which was time-saving and easy-determination., (Copyright © 2017 Elsevier Ltd. All rights reserved.)- Published
- 2018
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