Automated detection of bacterial growth on 96-well plates for high-throughput drug susceptibility testing of Mycobacterium tuberculosis.

Fowler, Philip W, Gibertoni Cruz, Ana Luíza, Hoosdally, Sarah J, Jarrett, Lisa, Borroni, Emanuele, Chiacchiaretta, Matteo, Rathod, Priti, Lehmann, Sarah, Molodtsov, Nikolay, Walker, Timothy M, Robinson, Esther R, Hoffmann, Harald, Peto, Timothy E A, Cirillo, Daniela Maria, Smith, Grace E and Crook, Derrick W (2018) Automated detection of bacterial growth on 96-well plates for high-throughput drug susceptibility testing of Mycobacterium tuberculosis. Microbiology (Reading, England). ISSN 1465-2080.

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Abstract

M. tuberculosis grows slowly and is challenging to work with experimentally compared with many other bacteria. Although microtitre plates have the potential to enable high-throughput phenotypic testing of M. tuberculosis, they can be difficult to read and interpret. Here we present a software package, the Automated Mycobacterial Growth Detection Algorithm (AMyGDA), that measures how much M. tuberculosis is growing in each well of a 96-well microtitre plate. The plate used here has serial dilutions of 14 anti-tuberculosis drugs, thereby permitting the MICs to be elucidated. The three participating laboratories each inoculated 38 96-well plates with 15 known M. tuberculosis strains (including the standard H37Rv reference strain) and, after 2 weeks' incubation, measured the MICs for all 14 drugs on each plate and took a photograph. By analysing the images, we demonstrate that AMyGDA is reproducible, and that the MICs measured are comparable to those measured by a laboratory scientist. The AMyGDA software will be used by the Comprehensive Resistance Prediction for Tuberculosis: an International Consortium (CRyPTIC) to measure the drug susceptibility profile of a large number (>30000) of samples of M. tuberculosis from patients over the next few years.

Item Type: Article
Subjects: QW Microbiology. Immunology
WC Communicabable diseases
Divisions: Clinical Support
Related URLs:
Depositing User: Miss Emily Johnson
Date Deposited: 31 Oct 2018 16:26
Last Modified: 31 Oct 2018 16:26
URI: http://www.repository.uhblibrary.co.uk/id/eprint/1762

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