RT Journal Article T1 Tetradentate polyamines as efficient metallodrugs for Chagas disease treatment in murine model. A1 Olmo, Francisco A1 Costas, Miquel A1 Marin, Clotilde A1 Rosales, Maria Jose A1 Martin-Escolano, Ruben A1 Cusso, Olaf A1 Gutierrez-Sanchez, Ramon A1 Ribas, Xavi A1 Sanchez-Moreno, Manuel K1 American trypanosomiasis K1 Chemotherapy K1 Murine model K1 Tetradentate polyamines AB A series of tetraamine-based compounds was prepared, and their trypanocidal effects against Trypanosoma cruzi and cytotoxicity were determined through the determination of IC50 values. In vivo assays were performed in mice, where parasitaemia levels were quantified by fresh blood examination and the assignment of a cure was determined by polymerase chain reaction and reactivation of blood parasitaemia levels after immunosuppression. The mechanisms of action were elucidated at metabolic and ultra-structural levels, by 1H NMR, Fe-SOD inhibition and TEM studies. The high-selectivity indexes observed in vitro were the basis of promoting one of the tested compounds to in vivo assays. Compound 6 induced a remarkable decrease in the reactivation of parasitaemia after immunosuppression and curative rates of 33%. The experiments allowed us to select compound 6 as a promising candidate for treating Chagas disease, but a further high-level study should be considered to obtain an improved efficiency. PB Taylor & Francis YR 2016 FD 2016-06-02 LK http://hdl.handle.net/10668/10143 UL http://hdl.handle.net/10668/10143 LA en NO Olmo F, Costas M, Marín C, Rosales MJ, Martín-Escolano R, Cussó O, et al. Tetradentate polyamines as efficient metallodrugs for Chagas disease treatment in murine model. J Chemother. 2017 Apr;29(2):83-93. NO We acknowledge Generalitat de Catalunya for an ICREA Academia Award (X.R. and M.C.). Financial support from the Spanish Ministry of Economy and Competitiveness (MINECO), CONSOLIDER-INGENIO 2010 CSD2010-00065. F.O. is grateful for a FPU Grant (AP2010-3562) from the Ministry of Education of Spain. DS RISalud RD Apr 19, 2025