Abstract
Background: Compounds previously studied as anticancer were screened against
trypomastigotes to access the bioactivity. The epimastigote form of Trypanosoma cruzi Y strain and
the promastigote form of Leishmania amazonensis and Leishmania infantum were used in this work.
Methods: Cell-based assays were performed to access the bioactivity of the compounds using MTT
and the flow cytometry methods.
Results: Neq0438, Neq0474 and Neq0440 had the highest potency, with EC50 of 39 μM (L.
amazonensis), 52 μM (T. cruzi) and 81 μM (T. cruzi), respectively. These molecules were inactive
for Balb/C fibroblast cell line at concentrations above 250 μM, showing selectivity for the parasites.
Conclusion: This is the first report that demonstrates antiparasitic activity for the 2-aminopyridine
scaffold, with cross-activity against cancer cells.
Keywords:
Trypanosoma cruzi, Leishmania infantum, Leishmania amazonensis, cell-based assays, selectivity index,
antiparasitic compounds.
Graphical Abstract
[28]
Brunschwig, C.; Lawrence, N.; Taylor, D.; Abay, E.; Njoroge, M.; Basarab, G.S.; Le Manach, C.; Paquet, T.; Cabrera, D.G.; Nchinda, A.T.; de Kock, C.; Wiesner, L.; Denti, P.; Waterson, D.; Blasco, B.; Leroy, D.; Witty, M.J.; Donini, C.; Duffy, J.; Wittlin, S.; White, K.L.; Charman, S.A.; Jiménez-Díaz, M.B.; Angulo-Barturen, I.; Herreros, E.; Gamo, F.J.; Rochford, R.; Mancama, D.; Coetzer, T.L.; van der Watt, M.E.; Reader, J.; Birkholtz, L.M.; Marsh, K.C.; Solapure, S.M.; Burke, J.E.; McPhail, J.A.; Vanaerschot, M.; Fidock, D.A.; Fish, P.V.; Siegl, P.; Smith, D.A.; Wirjanata, G.; Noviyanti, R.; Price, R.N.; Marfurt, J.; Silue, K.D.; Street, L.J.; Chibale, K. UCT943, a next-generation Plasmodium falciparum PI4K inhibitor preclinical candidate for the treatment of malaria.
Antimicrob. Agents Chemother., 2018,
62(9), e00012-e00018.
[
http://dx.doi.org/10.1128/AAC.00012-18] [PMID:
29941635]
[29]
Paquet, T.; Le Manach, C.; Cabrera, D.G.; Younis, Y.; Henrich, P.P.; Abraham, T.S.; Lee, M.C.S.; Basak, R.; Ghidelli-Disse, S.; Lafuente-Monasterio, M.J.; Bantscheff, M.; Ruecker, A.; Blagborough, A.M.; Zakutansky, S.E.; Zeeman, A.M.; White, K.L.; Shackleford, D.M.; Mannila, J.; Morizzi, J.; Scheurer, C.; Angulo-Barturen, I.; Martínez, M.S.; Ferrer, S.; Sanz, L.M.; Gamo, F.J.; Reader, J.; Botha, M.; Dechering, K.J.; Sauerwein, R.W.; Tungtaeng, A.; Vanachayangkul, P.; Lim, C.S.; Burrows, J.; Witty, M.J.; Marsh, K.C.; Bodenreider, C.; Rochford, R.; Solapure, S.M.; Jiménez-Díaz, M.B.; Wittlin, S.; Charman, S.A.; Donini, C.; Campo, B.; Birkholtz, L.M.; Hanson, K.K.; Drewes, G.; Kocken, C.H.M.; Delves, M.J.; Leroy, D.; Fidock, D.A.; Waterson, D.; Street, L.J.; Chibale, K. Antimalarial efficacy of MMV390048, an inhibitor of Plasmodium phosphatidylinositol 4-kinase
Sci. Transl. Med., 2017,
9(387)eaad 9735.
[
http://dx.doi.org/10.1126/scitranslmed.aad9735] [PMID:
28446690]