[Study on the effects of total flavonoids from litchi nucleus on nuclear translocation of nuclear factor-kappa B and related protein expression in rat hepatic stellate cell].
Zhonghua Gan Zang Bing Za Zhi
; 26(7): 535-539, 2018 Jul 20.
Article
em Zh
| MEDLINE
| ID: mdl-30317778
ABSTRACT
Objective:
The effect of total flavonoids of litchi (TFL) on nuclear translocation of nuclear factor-kappa B (NF- kappa B) in rat hepatic stellate cell line (HSC-T6) induced by transforming growth factor - beta 1 (TGF- beta 1) in vitro was studied to explore the mechanism of action of anti-hepatic fibrosis drugs.Methods:
HSC-T6 was cultured in vitro, induced by TGFß1 for 24 h, and then treated with TFL at 125, 250 and 500 µg/ml for 48 h. The effect of TFL on NF-κB nuclear translocation in HSC-T6 was observed by confocal laser microscopy. The effects of TFL on the expression of TLR4, p-IκB É, p-NF-κB p65, NF-κB and Collagen I protein were detected by western blot. The expressions of TLR4 and p-NF-κB p65 were detected by immunofluorescence. Data were presented as mean±SEM. Homogeneity test of variance was performed and then followed by one-way analysis of variance (ANOVA). The multiple comparisons between groups were performed by LSD test. P < 0.05 was considered statistically significant.Results:
Confocal laser scanning microscopy showed TFL inhibited the nuclear translocation of NF-κB in activated HSC-T6 in a concentration-dependent manner and TFL down regulated the protein expression levels of TLR4, p-IκB É, p-NF-κB p65, NF-κB and collagen I protein in HSC-T6 in a concentration-dependent manner.Conclusion:
The mechanism of TFL against hepatic fibrosis may be related to the inhibition of nuclear translocation of NF-κb in the activated HSC-T6 and the expression of TLR4, P-iκbÉ, P-nf-κb p65, NF-κb and collagen I protein in HSC-T6.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Flavonoides
/
NF-kappa B
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Litchi
/
Células Estreladas do Fígado
Limite:
Animals
Idioma:
Zh
Ano de publicação:
2018
Tipo de documento:
Article