GSK_TCMDC: Inhibition of Plasmodium falciparum Dd2 in whole red blood cells, using parasite LDH activity as an index of growth. Test compounds present at 2uM
GSK_TCMDC: Inhibition Frequency Index (IFI). The number of non-kinase HTS assays where a compound showed > 50 % inhibition, expressed as a percentage of the number of such assays in which the compound was tested
GSK_TCMDC: Inhibition of Plasmodium falciparum 3D7 in whole red blood cells, using parasite LDH activity as an index of growth. Test compounds present at 2uM
Antitrypanosomal activity against Trypanosoma brucei brucei 427 bloodstream forms assessed as parasite viability at 10 uM after 24 hrs by resazurin dye based fluorescence assay relative to control
GSK_TCAKS: pIC50 Leishmania donovani viability assay using fluorescence intensity. Assay plates (1536-well) were prepared by adding 30nL per well of compound. For single shot assay, the final compound concentration was 5uM. For potency determinations, eleven-point one in three dilution curves were generated with a top concentration of 50uM. Briefly, eGFP LdBOB axenic amastigotes were harvested, fixed and counted in a CASY cell counter (Roche-Applied Science). A final concentration of 1.5 * 10^5 cells per well were prepared in amastigote media containing 500 U/mL penicillin/streptomycin (Invitrogen) and 6uL was dispensed to each experimental well using a Multidrop Combi dispenser (Thermo Scientific). 6uL of assay media was dispensed to control columns used as reference for 100% compound response. Following incubation for 72 h at 37C, 5% CO2, 2 uL of resazurin was added to each well at a final concentration of 0.5 mM in phosphate buffered saline (PBS) with IGEPAL (Sigma-Aldrich), 0.05% (v/v). The plates were incubated for 4 h at room temperature and resorufin fluorescence was detected using a PerkinElmer EnVision plate reader with excitation at 528 nm and emission at 590 nm.
GSK_TCAKS: pIC50 Leishmania donovani Imaging: Infected Macrophages. Assay plates (384-well) were prepared by adding 250nL of compound to each well. For single shot assay, the final compound concentration was 5 uM. For potency determinations, eleven-point one in three dilution curves were generated with a top concentration of 50 uM. Two exposure images were taken for each well using 405 nm and 488 nm laser excitation. Automated image analysis was performed with a script developed on Acapella High Content Imaging and Analysis Software (PerkinElmer). Output: Percent of infected macrophage cells were reported for each well.
GSK_TCAKS: pIC50 Leishmania donovani Imaging: Amastigotes/Macrophages. Assay plates (384-well) were prepared by adding 250nL of compound to each well. For single shot assay, the final compound concentration was 5 uM. For potency determinations, eleven-point one in three dilution curves were generated with a top concentration of 50 uM. Two exposure images were taken for each well using 405 nm and 488 nm laser excitation. Automated image analysis was performed with a script developed on Acapella High Content Imaging and Analysis Software (PerkinElmer). Output: Average number of amastigotes per macrophage cell were reported for each well.
GSK_TCAKS: pIC50 Leishmania donovani Imaging: THP-1 Host Macrophages. Assay plates (384-well) were prepared by adding 250nL of compound to each well. For single shot assay, the final compound concentration was 5 uM. For potency determinations, eleven-point one in three dilution curves were generated with a top concentration of 50 uM. Two exposure images were taken for each well using 405 nm and 488 nm laser excitation. Automated image analysis was performed with a script developed on Acapella High Content Imaging and Analysis Software (PerkinElmer). Output: THP-1 cell count were reported for each well.