Mandal, Swati ; Maharjan, Mahendra ; Ganguly, Sudipto ; Chatterjee, Mitali ; Singh, Sarman ; Buckner, Frederick S. ; Madhubala, Rentala (2009) High-throughput screening of amastigotes of Leishmania donovani clinical isolates against drugs using a colorimetric β-lactamase assay Indian Journal of Experimental Biology, 47 (6). pp. 475-479. ISSN 0019-5189
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Abstract
A simple colorimetric β-lactamase assay for quantifying Leishmania amastigotes in macrophages grown in microtiter plates has been reported. The β-lactamase gene was integrated into the rRNA region of the genome, thereby allowing for high-level stable expression of the enzyme. Both visceral leishmaniasis (VL) and post-kala azar dermal leishmaniasis (PKDL) isolates were transfected with β-Lactamase gene. These β-lactamase-expressing promastigotes were used for infecting intracellular J774A.1 macrophages in vitro. Quantification was done by a colorimetric readout with CENTA™ β-lactamase as substrate and with an optical density plate reader. The assay was carried out in 96-well plates. Results obtained demonstrate that this methodology could be a valuable high-throughput screening assay for checking efficacy of anti-leishmanial drugs in the clinical isolates.
Item Type: | Article |
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Source: | Copyright of this article belongs to National Institute of Science Communication and Information Resources. |
Keywords: | β-lactamase Assay; Amastigotes; Drug Screening; Indian Clinical Isolates; Leishmania donovani |
ID Code: | 111537 |
Deposited On: | 31 Jan 2018 04:01 |
Last Modified: | 31 Jan 2018 04:01 |
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