Effect of retinoid kappa receptor alpha (RXRalpha) transfection on the proliferation and phenotype of rat hepatic stellate cells in vitro / 中华医学杂志(英文版)
Chinese Medical Journal
;
(24): 928-932, 2002.
Artigo
em Inglês
| WPRIM
| ID: wpr-302272
ABSTRACT
<p><b>OBJECTIVE</b>To study the effect of retinoid kappa receptor alpha (RXRalpha) transfection plus treatment with the RXRalpha ligand, 9-cis-RA, on the proliferation and phenotype of platelet-derived growth factor (PDGF) activated hepatic stellate cells (HSCs).</p><p><b>METHODS</b>PDGF activated rat hepatic stellate cells were transfected with eukaryotic expression vector pcDNA3.1- human RXRalpha, and confirmed by Western blot. Proliferation of transfected HSC was assayed by bromodeoxyuridine (BrdU) incorporation as well as MTT, and the phenotype (alpha-smooth muscle actin, desmin) was observed by immunocytochemistry with image analysis.</p><p><b>RESULTS</b>Transfection of the RXRalpha gene and treatment with ligand 9-cis-RA of PDGF-activated HSCs extended the increased expression of RXRalpha protein for at least 168 hours. Cell proliferation and expressions of alpha- smooth muscle actin (alpha-SMA) and desmin were blocked, compared with groups of sham-transfected, PDGF-activated, no transfection, no ligand treatment, and irrelevant ligand treated HSCs.</p><p><b>CONCLUSION</b>Transfection with the RXRalpha gene followed by 9-cis-RA ligand treatment will inhibit the proliferation and reverse the phenotype of activated HSC.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Farmacologia
/
Fenótipo
/
Fisiologia
/
Fatores de Transcrição
/
Fator de Crescimento Derivado de Plaquetas
/
Transfecção
/
Divisão Celular
/
Células Cultivadas
/
Ratos Sprague-Dawley
/
Receptores do Ácido Retinoico
Limite:
Animais
Idioma:
Inglês
Revista:
Chinese Medical Journal
Ano de publicação:
2002
Tipo de documento:
Artigo
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