Selective Detection of DNA from Viable Mycobacterium tuberculosis Complex Strains Using the EMA-PCR Method

Japanese journal of infectious diseases

Shota Fukuzawa¹  Hiroyuki Shiho² 

[1] Clinical Laboratory, National Hospital Organization Hokkaido Cancer Center;Department of Infectious Diseases, National Hospital Organization Hokkaido Cancer Center

关键词: ethidium monoazide;    Mycobacterium tuberculosis;    PCR;    propidium monoazide;   

DOI  :  10.7883/yoken.JJID.2018.111

学科分类：传染病学

来源: National Institute of Infectious Diseases

【 摘 要 】

In this study, the ability to discriminate viable from dead cells of Mycobacterium tuberculosis complex (MTC), using an ethidium monoazide (EMA) treatment-dependent viable bacteria selection PCR kit was examined. Detection of dead bacteria was possible for bacterial concentrations in the range 1.5 × 107–3.0 × 107 CFU/mL, which was equivalent to McFarland No. 0.05–0.10. There was a significant difference between the results for viable and dead bacteria, and the sensitivity and specificity of this method for culture-negative samples from patients were 83% and 100%, respectively. To the best of our knowledge, this is the first successful selective detection of DNA from viable cells of MTC by EMA-PCR, using the viable bacteria selection kit for PCR (gram-positive), an EMA treatment kit. We believe that application of this method could promote earlier discharge of patients undergoing tuberculosis treatment by discriminating dead from viable cells.

【 授权许可】

Unknown