Resveratrol can prevent CCl4-induced liver injury by inhibiting Notch signaling pathway.
Histol Histopathol
; 31(7): 769-84, 2016 Jul.
Article
em En
| MEDLINE
| ID: mdl-26742567
ABSTRACT
We investigated whether Notch signaling was increased in an experimental liver fibrosis model and examined the effects of resveratrol on Notch expression. Rats were divided into four groups the control group, injected with physiological saline; the CCl4 group; the CCl4 plus resveratrol group; and the resveratrol group. After treatment, immunostaining was performed to detect Notch1, Notch3, Notch4, transforming growth factor (TGF)-beta, alpha-smooth muscle actin (SMA), glial fibrillary acidic protein (GFAP), and proliferating cell nuclear antigen (PCNA), and TUNEL assays were performed to evaluate apoptosis. Sirius red staining was used to detect fibrosis. Samples were also biochemically evaluated for glutathione (GSH), glutathione peroxidase (GPx), catalase (CAT), lipid peroxidation, and protein oxidation. GSH, GPx, and catalase activities were significantly decreased (p⟨0.001) in the CCl4 group. Distinct collagen accumulation was detected around the central vein and portal areas, and numbers of Notch1-, Notch3-, and Notch4-positive cells were significantly increased (p⟨0.001) in fibrotic areas in the CCl4 group. Increased expression of Notch proteins in fibrotic areas may support the role of Notch in mediating signaling associated with liver fibrosis through activation of hepatic stellate and progenitor cells. In contrast, resveratrol prevented liver fibrosis by decreasing lipid peroxidation and may be effective for inhibiting Notch signaling.
Texto completo:
1
Coleções:
01-internacional
Contexto em Saúde:
6_ODS3_enfermedades_notrasmisibles
Base de dados:
MEDLINE
Assunto principal:
Estilbenos
/
Transdução de Sinais
/
Receptores Notch
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Doença Hepática Induzida por Substâncias e Drogas
/
Antioxidantes
Tipo de estudo:
Prognostic_studies
Limite:
Animals
Idioma:
En
Revista:
Histol Histopathol
Ano de publicação:
2016
Tipo de documento:
Article