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Title: A high-throughput screen to identify inhibitors of ATP homeostasis in non-replicating mycobacterium tuberculosis
Authors: Mak, P.A.
Rao, S.P.S.
Ping Tan, M.
Lin, X.
Chyba, J.
Tay, J.
Ng, S.H.
Tan, B.H.
Cherian, J.
Duraiswamy, J.
Bifani, P.
Lim, V.
Lee, B.H.
Ling Ma, N.
Beer, D.
Thayalan, P.
Kuhen, K.
Chatterjee, A.
Supek, F.
Glynne, R.
Zheng, J.
Boshoff, H.I.
Barry, C.E.
Dick, T. 
Pethe, K.
Camacho, L.R.
Issue Date: 20-Jul-2012
Citation: Mak, P.A., Rao, S.P.S., Ping Tan, M., Lin, X., Chyba, J., Tay, J., Ng, S.H., Tan, B.H., Cherian, J., Duraiswamy, J., Bifani, P., Lim, V., Lee, B.H., Ling Ma, N., Beer, D., Thayalan, P., Kuhen, K., Chatterjee, A., Supek, F., Glynne, R., Zheng, J., Boshoff, H.I., Barry, C.E., Dick, T., Pethe, K., Camacho, L.R. (2012-07-20). A high-throughput screen to identify inhibitors of ATP homeostasis in non-replicating mycobacterium tuberculosis. ACS Chemical Biology 7 (7) : 1190-1197. ScholarBank@NUS Repository.
Abstract: Growing evidence suggests that the presence of a subpopulation of hypoxic non-replicating, phenotypically drug-tolerant mycobacteria is responsible for the prolonged duration of tuberculosis treatment. The discovery of new antitubercular agents active against this subpopulation may help in developing new strategies to shorten the time of tuberculosis therapy. Recently, the maintenance of a low level of bacterial respiration was shown to be a point of metabolic vulnerability in Mycobacterium tuberculosis. Here, we describe the development of a hypoxic model to identify compounds targeting mycobacterial respiratory functions and ATP homeostasis in whole mycobacteria. The model was adapted to 1,536-well plate format and successfully used to screen over 600,000 compounds. Approximately 800 compounds were confirmed to reduce intracellular ATP levels in a dose-dependent manner in Mycobacterium bovis BCG. One hundred and forty non-cytotoxic compounds with activity against hypoxic non-replicating M. tuberculosis were further validated. The resulting collection of compounds that disrupt ATP homeostasis in M. tuberculosis represents a valuable resource to decipher the biology of persistent mycobacteria. © 2012 American Chemical Society.
Source Title: ACS Chemical Biology
ISSN: 15548929
DOI: 10.1021/cb2004884
Appears in Collections:Staff Publications

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