Trypanosoma cruzi: In vitro and in vivo antiproliferative effects of epigallocatechin gallate (EGCg)

The trypanocidal activity of catechins on Trypanosoma cruzi bloodstream trypomastigotes has been previously reported. Herein, we present the effect of epigallocatechin gallate (EGCg) on parasitemia and survival in a murine model of acute Chagas' disease as well as on the epimastigote form of th...

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Autor principal: Güida, M.C
Otros Autores: Esteva, M.I, Camino, A., Flawiá, M.M, Torres, H.N, Paveto, C.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2007
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
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024 7 |2 cas  |a epigallocatechin gallate, 989-51-5; Antioxidants; Catechin, 154-23-4; epigallocatechin gallate, 989-51-5; Trypanocidal Agents 
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030 |a EXPAA 
100 1 |a Güida, M.C. 
245 1 0 |a Trypanosoma cruzi: In vitro and in vivo antiproliferative effects of epigallocatechin gallate (EGCg) 
260 |c 2007 
270 1 0 |m Güida, M.C.; Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Facultad de Ciencias Exactas y Naturales (CONICET-UBA), 1428 Buenos Aires, Argentina; email: mcguida@dna.uba.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a The trypanocidal activity of catechins on Trypanosoma cruzi bloodstream trypomastigotes has been previously reported. Herein, we present the effect of epigallocatechin gallate (EGCg) on parasitemia and survival in a murine model of acute Chagas' disease as well as on the epimastigote form of the parasite. Upon intraperitoneal administration of daily doses of 0.8 mg/kg/day of EGCg for 45 days, mice survival rates increased from 11% to 60%, while parasitemia diminished to 50%. No side effects were observed in EGCg-treated animals. Fifty percent inhibition of epimastigotes growth was achieved with 311 μM EGCg 120 h after drug addition. No lysis, total culture growth inhibition or morphological changes were observed upon addition of 1-3 mM EGCg at 24 h. This treatment also produced oligosomal fragmentation of epimastigotes DNA, suggesting a programmed cell death (PCD)-like process. All these findings point out EGCg as a potential new lead compound for chemotherapy of Chagas' disease. © 2007 Elsevier Inc. All rights reserved.  |l eng 
536 |a Detalles de la financiación: Universidad de Buenos Aires 
536 |a Detalles de la financiación: Agencia Nacional de Promoción Científica y Tecnológica 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas 
536 |a Detalles de la financiación: This study was supported by Consejo Nacional de Investigaciones Científicas y Técnicas, CONICET (Argentina), University of Buenos Aires (Argentina) and Agencia Nacional de Promoción Científica y Tecnológica (Argentina). C. Paveto, M.M. Flawiá and H.N. Torres are members of Scientific Investigator Career of CONICET; M.C. Güida is a postgraduate fellow of CONICET. M.I. Esteva is a researcher of the Instituto Nacional de Parasitología Dr Mario Fatala Chabén. We thank María del Carmen Aranda for technical assistance. 
593 |a Instituto de Investigaciones en Ingeniería Genética y Biología Molecular, Facultad de Ciencias Exactas y Naturales (CONICET-UBA), 1428 Buenos Aires, Argentina 
593 |a Instituto Nacional de Parasitología Dr. Mario Fatala Chabén, 1063 Buenos Aires, Argentina 
593 |a Unidad de hígado y transplante, Hospital Universitario Austral, Buenos Aires, Argentina 
690 1 0 |a EPIGALLOCATECHIN GALLATE 
690 1 0 |a PCD 
690 1 0 |a PROGRAMMED CELL DEATH 
690 1 0 |a TRYPANOCIDE CHAGAS' DISEASE 
690 1 0 |a EPIGALLOCATECHIN GALLATE 
690 1 0 |a ANIMAL EXPERIMENT 
690 1 0 |a ANIMAL MODEL 
690 1 0 |a ANIMAL TISSUE 
690 1 0 |a APOPTOSIS 
690 1 0 |a ARTICLE 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a DRUG MECHANISM 
690 1 0 |a FRAGMENTATION REACTION 
690 1 0 |a GROWTH INHIBITION 
690 1 0 |a HISTOPATHOLOGY 
690 1 0 |a IN VITRO STUDY 
690 1 0 |a IN VIVO STUDY 
690 1 0 |a MALE 
690 1 0 |a MOUSE 
690 1 0 |a NONHUMAN 
690 1 0 |a PARASITEMIA 
690 1 0 |a PRIORITY JOURNAL 
690 1 0 |a SURVIVAL RATE 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a TRYPOMASTIGOTE 
690 1 0 |a ANIMALS 
690 1 0 |a ANTIOXIDANTS 
690 1 0 |a CATECHIN 
690 1 0 |a CHAGAS DISEASE 
690 1 0 |a DISEASE MODELS, ANIMAL 
690 1 0 |a DNA FRAGMENTATION 
690 1 0 |a DOSE-RESPONSE RELATIONSHIP, DRUG 
690 1 0 |a HEPATOCYTES 
690 1 0 |a IN SITU NICK-END LABELING 
690 1 0 |a MALE 
690 1 0 |a MICE 
690 1 0 |a MICE, INBRED BALB C 
690 1 0 |a PARASITEMIA 
690 1 0 |a RANDOM ALLOCATION 
690 1 0 |a TRYPANOCIDAL AGENTS 
690 1 0 |a TRYPANOSOMA CRUZI 
690 1 0 |a ANIMALIA 
690 1 0 |a MURINAE 
690 1 0 |a MUS 
690 1 0 |a TRYPANOSOMA CRUZI 
700 1 |a Esteva, M.I. 
700 1 |a Camino, A. 
700 1 |a Flawiá, M.M. 
700 1 |a Torres, H.N. 
700 1 |a Paveto, C. 
773 0 |d 2007  |g v. 117  |h pp. 188-194  |k n. 2  |p Exp. Parasitol.  |x 00144894  |w (AR-BaUEN)CENRE-4717  |t Experimental Parasitology 
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