title: Paullinia cupana Mart. var. sorbilis, guarana, increases survival of Ehrlich ascites carcinoma (EAC) bearing mice by decreasing cyclin-D1 expression and inducing a G0/G1 cell cycle arrest in EAC cells.
abstract: The objective of this work is to report the antiproliferative effect of P. cupana treatment in Ehrlich Ascites Carcinoma (EAC)-bearing animals. Female mice were treated with three doses of powdered P. cupana (100, 1000 and 2000 mg/kg) for 7 days, injected with 10(5) EAC cells and treated up to day 21. In addition, a survival experiment was carried out with the same protocol. P. cupana decreased the ascites volume (p = 0.0120), cell number (p = 0.0004) and hemorrhage (p = 0.0054). This occurred through a G1-phase arrest (p < 0.01) induced by a decreased gene expression of Cyclin D1 in EAC cells. Furthermore, P. cupana significantly increased the survival of EAC-bearing animals (p = 0.0012). In conclusion, the P. cupana growth control effect in this model was correlated with a decreased expression of cyclin D1 and a G1 phase arrest. These results reinforce the cancer therapeutic potential of this Brazilian plant.
authors.affiliation: Department of Pathology, School of Veterinary Medicine and Animal Sciences, University of São Paulo, São Paulo, SP, Brazil.
authors.forename: Heidge
authors.initials: H
authors.lastname: Fukumasu
authors.forename: Andreia Oliveira
authors.initials: AO
authors.lastname: Latorre
authors.forename: Maria Lucia
authors.initials: ML
authors.lastname: Zaidan-Dagli
mesh_terms: D000818:Animals; D002286:Carcinoma, Ehrlich Tumor / Q000188:drug therapy* / Q000401:mortality / Q000473:pathology; D002453:Cell Cycle / Q000187:drug effects*; D049109:Cell Proliferation / Q000187:drug effects*; D019938:Cyclin D1 / Q000378:metabolism*; D054697:Cytostatic Agents / Q000494:pharmacology / Q000627:therapeutic use*; D005260:Female; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects; D051379:Mice; D008807:Mice, Inbred BALB C; D032126:Paullinia; D008517:Phytotherapy; D028321:Plant Preparations / Q000494:pharmacology / Q000627:therapeutic use*; D016019:Survival Analysis
chemical_list: D054697:Cytostatic Agents; D028321:Plant Preparations; D019938:Cyclin D1