Chroman-4-One Derivatives Targeting Pteridine Reductase 1 and Showing Anti-Parasitic Activity
AbstractFlavonoids have previously been identified as antiparasitic agents and pteridine reductase 1 (PTR1) inhibitors. Herein, we focus our attention on the chroman-4-one scaffold. Three chroman-4-one analogues (1–3) of previously published chromen-4-one derivatives were synthesized and biologically evaluated against parasitic enzymes (Trypanosoma brucei PTR1–TbPTR1 and Leishmania major–LmPTR1) and parasites (Trypanosoma brucei and Leishmania infantum). A crystal structure of TbPTR1 in complex with compound 1 and the first crystal structures of LmPTR1-flavanone complexes (compounds 1 and 3) were solved. The inhibitory activity of the chroman-4-one and chromen-4-one derivatives was explained by comparison of observed and predicted binding modes of the compounds. Compound 1 showed activity both against the targeted enzymes and the parasites with a selectivity index greater than 7 and a low toxicity. Our results provide a basis for further scaffold optimization and structure-based drug design aimed at the identification of potent anti-trypanosomatidic compounds targeting multiple PTR1 variants. View Full-Text
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Di Pisa, F.; Landi, G.; Dello Iacono, L.; Pozzi, C.; Borsari, C.; Ferrari, S.; Santucci, M.; Santarem, N.; Cordeiro-da-Silva, A.; Moraes, C.B.; Alcantara, L.M.; Fontana, V.; Freitas-Junior, L.H.; Gul, S.; Kuzikov, M.; Behrens, B.; Pöhner, I.; Wade, R.C.; Costi, M.P.; Mangani, S. Chroman-4-One Derivatives Targeting Pteridine Reductase 1 and Showing Anti-Parasitic Activity. Molecules 2017, 22, 426.
Di Pisa F, Landi G, Dello Iacono L, Pozzi C, Borsari C, Ferrari S, Santucci M, Santarem N, Cordeiro-da-Silva A, Moraes CB, Alcantara LM, Fontana V, Freitas-Junior LH, Gul S, Kuzikov M, Behrens B, Pöhner I, Wade RC, Costi MP, Mangani S. Chroman-4-One Derivatives Targeting Pteridine Reductase 1 and Showing Anti-Parasitic Activity. Molecules. 2017; 22(3):426.Chicago/Turabian Style
Di Pisa, Flavio; Landi, Giacomo; Dello Iacono, Lucia; Pozzi, Cecilia; Borsari, Chiara; Ferrari, Stefania; Santucci, Matteo; Santarem, Nuno; Cordeiro-da-Silva, Anabela; Moraes, Carolina B.; Alcantara, Laura M.; Fontana, Vanessa; Freitas-Junior, Lucio H.; Gul, Sheraz; Kuzikov, Maria; Behrens, Birte; Pöhner, Ina; Wade, Rebecca C.; Costi, Maria P.; Mangani, Stefano. 2017. "Chroman-4-One Derivatives Targeting Pteridine Reductase 1 and Showing Anti-Parasitic Activity." Molecules 22, no. 3: 426.
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