Article Publish Status: FREE
Abstract Title:

Role of Rutin in 5-Fluorouracil-Induced Intestinal Mucositis: Prevention of Histological Damage and Reduction of Inflammation and Oxidative Stress.

Abstract Source:

Molecules. 2020 Jun 17 ;25(12). Epub 2020 Jun 17. PMID: 32560278

Abstract Author(s):

Lázaro de Sousa Fideles, João Antônio Leal de Miranda, Conceição da Silva Martins, Maria Lucianny Lima Barbosa, Helder Bindá Pimenta, Paulo Vitor de Souza Pimentel, Claudio Silva Teixeira, Marina Alves Sampaio Scafuri, Samuel de Osterno Façanha, João Erivan Façanha Barreto, Poliana Moreira de Medeiros Carvalho, Ariel Gustavo Scafuri, Joabe Lima Araújo, Jefferson Almeida Rocha, Icaro Gusmão Pinto Vieira, Nágila Maria Pontes Silva Ricardo, Matheus da Silva Campelo, Maria Elenir Nobre Pinho Ribeiro, Gerly Anne de Castro Brito, Gilberto Santos Cerqueira

Article Affiliation:

Lázaro de Sousa Fideles


Intestinal mucositis, characterized by inflammatory and/or ulcerative processes in the gastrointestinal tract, occurs due to cellular and tissue damage following treatment with 5-fluorouracil (5-FU). Rutin (RUT), a natural flavonoid extracted from, exhibits antioxidant, anti-inflammatory, cytoprotective, and gastroprotective properties. However, the effect of RUT on inflammatory processes in the intestine, especially on mucositis promoted by antineoplastic agents, has not yet been reported. In this study, we investigated the role of RUT on 5-FU-induced experimental intestinal mucositis. Swiss mice were randomly divided into seven groups: Saline, 5-FU, RUT-50, RUT-100, RUT-200, Celecoxib (CLX), and CLX + RUT-200 groups. The mice were weighed daily. After treatment, the animals were euthanized and segments of the small intestine were collected to evaluate histopathological alterations (morphometric analysis); malondialdehyde (MDA), myeloperoxidase (MPO), and glutathione (GSH) concentrations; mast and goblet cell counts; and cyclooxygenase-2 (COX-2) activity, as well as to perform immunohistochemical analyses. RUT treatment (200 mg/kg) prevented 5-FU-induced histopathological changes and reduced oxidative stress by decreasing MDA concentrations and increasing GSH concentrations. RUT attenuated the inflammatory response by decreasing MPO activity, intestinal mastocytosis, and COX-2 expression. These results suggest that the COX-2 pathway is one of the underlying protective mechanisms of RUT against 5-FU-induced intestinal mucositis.

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