3-(4-5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2h-tetrazolium has been researched along with Leishmaniasis--Visceral* in 1 studies
1 other study(ies) available for 3-(4-5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2h-tetrazolium and Leishmaniasis--Visceral
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Development of a semi-automated colorimetric assay for screening anti-leishmanial agents.
MTS or {3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl}-2H-tetrazolium, inner salt) is converted into soluble formazan by mitochondrial dehydrogenase of viable cells, thus serving as an indicator of cell viability. Accordingly, a MTS-based assay was developed to evaluate anti-leishmanial activity in Leishmania promastigotes from strains responsible for visceral, cutaneous or mucocutaneous leishmaniasis. The assay was initially optimized for the appropriate wavelength (490 nm), culture medium (M-199), incubation time (3 h) and temperature (37 degrees C). Increasing absorbance with increasing cell density confirmed linearity of the assay that was maintained up to 2.5 x 10(6) cells/200 microl. The growth kinetics of six L. donovani strains and six non-L. donovani strains consistently indicated higher absorbances in the L. donovani strains highlighting the importance of strain-specific customization of the MTS assay. The IC(50) values (i.e., the concentration at which 50% of growth was inhibited) of amphotericin B, miltefosine and pentamidine isethionate obtained by the MTS assay corroborated with previously published data. Taken together, the MTS assay thus permits a simple, reproducible and reliable semi-automated method for evaluating cell viability, effective for drug-screening and growth kinetic studies. Topics: Amphotericin B; Animals; Antiprotozoal Agents; Colorimetry; Drug Evaluation, Preclinical; Humans; Indicators and Reagents; Inhibitory Concentration 50; Kinetics; Leishmania; Leishmania donovani; Leishmaniasis, Visceral; Pentamidine; Phosphorylcholine; Tetrazolium Salts; Thiazoles | 2006 |