Specific identification of Mycobacterium tuberculosis with the luciferase reporter mycobacteriophage: use of p-nitro-alpha-acetylamino-beta-hydroxy propiophenone
| Autor: | Barry R. Bloom, John C. McKitrick, John Chan, William R. Jacobs, Paul F. Riska |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1997 |
| Předmět: |
Microbiology (medical)
Tuberculosis Mycobacteriophage Drug resistance Recombinant virus Sensitivity and Specificity Microbiology law.invention Mycobacterium Mycobacterium tuberculosis Species Specificity law Genes Reporter medicine Humans Luciferase Luciferases Tuberculosis Pulmonary Recombination Genetic Bacteriological Techniques Propiophenones biology Drug Resistance Microbial Mycobacteriophages biology.organism_classification medicine.disease Molecular biology Recombinant DNA lipids (amino acids peptides and proteins) Research Article |
| Popis: | We have previously described a luciferase reporter mycobacteriophage (LRP) assay that can detect Mycobacterium tuberculosis and characterize mycobacterial drug susceptibility patterns within 24 to 48 h in positive cultures. One drawback of this LRP protocol is the ability of the recombinant mycobacteriophage phAE40 to infect a variety of Mycobacterium species, thus limiting its specificity for the detection of M. tuberculosis. In this study, we have (i) explored the host range of phAE40, (ii) developed a modified LRP assay that exploits the selective inhibitory effect of the compound p-nitro-alpha-acetylamino-beta-hydroxy propiophenone (NAP) against members of the M. tuberculosis complex to differentiate between the tubercle bacillus and other mycobacterial species, and (iii) tested over 300 samples, including primary clinical isolates and drug-resistant strains of M. tuberculosis, demonstrating the ability of the NAP-modified LRP assay to identify M. tuberculosis complex organisms with high degrees of sensitivity and specificity. |
| Databáze: | OpenAIRE |
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