Strommenger Birgit, Kettlitz Christiane, Werner Guido, Witte Wolfgang
Robert Koch Institute, Wernigerode Branch, D-38855 Wernigerode, Germany.
J Clin Microbiol. 2003 Sep;41(9):4089-94. doi: 10.1128/JCM.41.9.4089-4094.2003.
In this study we describe a multiplex PCR assay for the detection of nine clinically relevant antibiotic resistance genes of Staphylococcus aureus. Conditions were optimized to amplify fragments of mecA (encoding methicillin resistance), aacA-aphD (aminoglycoside resistance), tetK, tetM (tetracycline resistance), erm(A), erm(C) (macrolide-lincosamide-streptogramin B resistance), vat(A), vat(B), and vat(C) (streptogramin A resistance) simultaneously in one PCR amplification. An additional primer pair for the amplification of a fragment of the staphylococcal 16S rDNA was included as a positive control. The multiplex PCR assay was evaluated on 30 different S. aureus isolates, and the PCR results correlated with the phenotypic antibiotic resistance data obtained by the broth microdilution assay. The multiplex PCR assay offers a rapid, simple, and accurate identification of antibiotic resistance profiles and could be used in clinical diagnosis as well as for the surveillance of the spread of antibiotic resistance determinants in epidemiological studies.
在本研究中,我们描述了一种用于检测金黄色葡萄球菌9种临床相关抗生素抗性基因的多重PCR检测方法。对条件进行了优化,以便在一次PCR扩增中同时扩增mecA(编码耐甲氧西林)、aacA-aphD(氨基糖苷抗性)、tetK、tetM(四环素抗性)、erm(A)、erm(C)(大环内酯-林可酰胺-链阳菌素B抗性)、vat(A)、vat(B)和vat(C)(链阳菌素A抗性)的片段。另外包含一对用于扩增葡萄球菌16S rDNA片段的引物作为阳性对照。对30种不同的金黄色葡萄球菌分离株进行了多重PCR检测评估,PCR结果与通过肉汤微量稀释法获得的表型抗生素抗性数据相关。该多重PCR检测方法可快速、简单且准确地鉴定抗生素抗性谱,可用于临床诊断以及在流行病学研究中监测抗生素抗性决定因素的传播。