Development of fluorogenic probe-based and high-resolution melting-based polymerase chain reaction assays for the detection and differentiation of Bartonella quintana and Bartonella henselae.
Bartonella henselae and Bartonella quintana are the major etiological agents of infective endocarditis, which pose a serious threat to human health. To simultaneously detect and differentiate B. henselae and B. quintana, a reliable and fast method to simultaneously detect and differentiate B. henselae and B. quintana is required. In this study, we developed and validated two rapid, highly sensitive and specific, duplex, real-time polymerase chain reaction (PCR) assays-one based on high-resolution melting (HRM) analysis, and the other on TaqMan probes-to simultaneously detect and differentiate B. henselae and B. quintana. The sensitivity of developed assays were found 100 times more sensitive than that of conventional PCR. The specificity of the assays were validated by the absence of any cross reaction with the other Bartonella species, non-Bartonella bacteria and other animals. The results indicate that the duplex HRM-based and TaqMan probe-based assays have high specificity and sensitivity, and good reproducibility for simultaneous the detection of B. henselae and B. quintana. They are cost-effective, sensitive and reliable methods; and are thus suitable for clinical diagnosis, epidemiological surveys, and disease surveillance.
State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, People's Republic of China; School of Life Science, Shandong University, Jinan 250100, People's Republic of China.
Yun-Yan
YY
Liu
School of Life Science, Shandong University, Jinan 250100, People's Republic of China.
Long-Sheng
LS
Zhao
State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, People's Republic of China.
Xiu-Ping
XP
Song
State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, People's Republic of China.
Peng-Chen
PC
Du
State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, People's Republic of China. Electronic address: lidongmei@icdc.cn.
Dong-Mei
DM
Li
School of Life Science, Shandong University, Jinan 250100, People's Republic of China. Electronic address: zhongkechen@sdu.edu.cn.
Zhong-Ke
ZK
Chen
State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing 102206, People's Republic of China. Electronic address: liuqiyong@icdc.cn.
Qi-Yong
QY
Liu
D001474:Bartonella Infections / Q000175:diagnosis* / Q000382:microbiology; D018416:Bartonella henselae / Q000145:classification* / Q000235:genetics; D018413:Bartonella quintana / Q000145:classification* / Q000235:genetics; D004269:DNA, Bacterial / Q000032:analysis*; D004696:Endocarditis / Q000175:diagnosis* / Q000382:microbiology; D006801:Humans; D009691:Nucleic Acid Denaturation / Q000235:genetics; D060888:Real-Time Polymerase Chain Reaction / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D004269:DNA, Bacterial
Bartonella; High-resolution melting analysis; Real-time fluorescence quantitative PCR; TaqMan probe; infective endocarditis