Banaiee, N and Bobadilla-del-Valle, M and Bardarov S., J and Riska, PF and Small, PM and Ponce-de-Leon, A and Jacobs, J and Hatfull, GF and Sifuentes-Osornio, J
(2001)
Luciferase reporter mycobacteriophages for detection, identification, and antibiotic susceptibility testing of mycobacterium tuberculosis in Mexico.
Journal of Clinical Microbiology, 39 (11).
3883 - 3888.
ISSN 0095-1137
Abstract
The utility of luciferase reporter mycobacteriophages (LRPs) for detection, identification, and antibiotic susceptibility testing of Mycobacterium tuberculosis was prospectively evaluated in a clinical microbiology laboratory in Mexico City, Mexico. Five hundred twenty-three consecutive sputum samples submitted to the laboratory during a 5-month period were included in this study. These specimens were cultivated in Middle-brook 7H9 (MADC), MGIT, and Löwenstein-Jensen (LJ) media. Of the 71 mycobacterial isolates recovered with any of the three media, 76% were detected with the LRPs, 97% were detected with the MGIT 960 method, and 90% were detected with LJ medium. When contaminated specimens were excluded from the analysis, the LRPs detected 92% (54 of 59) of the cultures. The median time to detection of bacteria was 7 days with both the LRPs and the MGIT 960 method. LRP detection of growth in the presence of p-nitro-α-acetylamino-β-hydroxypropiophenone (NAP) was used for selective identification of M. tuberculosis complex (MTC) and compared to identification with BACTEC 460. Using the LRP NAP test, 47 (94%) out of 50 isolates were correctly identified as tuberculosis complex. The accuracy and speed of LRP antibiotic susceptibility testing with rifampin, streptomycin, isoniazid, and ethambutol were compared to those of the BACTEC 460 method, and discrepant results were checked by the conventional proportion method. In total, 50 MTC isolates were tested. The overall agreement between the LRP and BACTEC 460 results was 98.5%. The median LRP-based susceptibility turnaround time was 2 days (range, 2 to 4 days) compared to 10.5 days (range, 7 to 16 days) by the BACTEC 460 method. Phage resistance was not detected in any of the 243 MTC isolates tested. Mycobacteriophage-based approaches to tuberculosis diagnostics can be implemented in clinical laboratories with sensitivity, specificity, and rapidity that compare favorably with those of the MGIT 960 and BACTEC 460 methods. The phages currently provide the fastest phenotypic assay for susceptibility testing.
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Item Type: |
Article
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Status: |
Published |
Creators/Authors: |
Creators | Email | Pitt Username | ORCID |
---|
Banaiee, N | | | | Bobadilla-del-Valle, M | | | | Bardarov S., J | | | | Riska, PF | | | | Small, PM | | | | Ponce-de-Leon, A | | | | Jacobs, J | | | | Hatfull, GF | gfh@pitt.edu | GFH | | Sifuentes-Osornio, J | | | |
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Date: |
14 November 2001 |
Date Type: |
Publication |
Journal or Publication Title: |
Journal of Clinical Microbiology |
Volume: |
39 |
Number: |
11 |
Page Range: |
3883 - 3888 |
DOI or Unique Handle: |
10.1128/jcm.39.11.3883-3888.2001 |
Schools and Programs: |
Dietrich School of Arts and Sciences > Biological Sciences |
Refereed: |
Yes |
ISSN: |
0095-1137 |
MeSH Headings: |
Antitubercular Agents--pharmacology; Culture Media; Genes, Reporter; Humans; Luciferases--genetics; Mexico; Microbial Sensitivity Tests; Mycobacteriophages--genetics; Mycobacteriophages--physiology; Mycobacterium tuberculosis--classification; Mycobacterium tuberculosis--drug effects; Mycobacterium tuberculosis--isolation & purification; Mycobacterium tuberculosis--virology; Tuberculosis--microbiology |
Other ID: |
NLM PMC88459 |
PubMed Central ID: |
PMC88459 |
PubMed ID: |
11682502 |
Date Deposited: |
29 Oct 2012 20:29 |
Last Modified: |
28 Sep 2022 13:25 |
URI: |
http://d-scholarship.pitt.edu/id/eprint/16119 |
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