Liver X receptor agonist T0901317 inhibits TGF-β1-induced α-SMA expression in normal human lung fibroblasts / 南方医科大学学报
Journal of Southern Medical University
;
(12): 744-748, 2011.
Artigo
em Chinês
| WPRIM
| ID: wpr-332558
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of liver X receptor agonist T0901317 on transforming growth factor-β1 (TGF-β1)-induced expression of α-smooth muscle actin (α-SMA) in normal human lung fibroblasts.</p><p><b>METHODS</b>Primary normal human lung fibroblast isolated from the lung specimens of lung cancer patients by explant culture technique were identified with immunostaining for vimentin and keratin. The cells in passages 4 to 10 were treated with T0901317 and/or TGF-β1, and RT-PCR, Western blotting and immunofluorescence assay were used to detect α-SMA expression in the fibroblasts.</p><p><b>RESULTS</b>Lung fibroblast expressed vimentin but not keratin. The results of RT-PCR, Western blotting and immunofluorescence assay all showed that normal human lung fibroblasts constitutively expressed α-SMA under baseline condition, and TGF-β1 at 5 ng/ml induced a significant upregulation of α-SMA both at the mRNA and protein levels. Liver X receptor agonist T0901317 (5 µg/ml) significantly inhibited TGF-β1-induced upregulation of α-SMA expression.</p><p><b>CONCLUSION</b>Liver X receptor agonist T0901317 can inhibit the upregulation of α-SMA in normal human lung fibroblasts induced by TGF-β1, suggesting the potential value of liver X receptor agonist in the treatment of lung fibrosis.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Farmacologia
/
Sulfonamidas
/
RNA Mensageiro
/
Células Cultivadas
/
Actinas
/
Biologia Celular
/
Fator de Crescimento Transformador beta1
/
Receptores Nucleares Órfãos
/
Fibroblastos
/
Receptores X do Fígado
Tipo de estudo:
Estudo prognóstico
Limite:
Feminino
/
Humanos
Idioma:
Chinês
Revista:
Journal of Southern Medical University
Ano de publicação:
2011
Tipo de documento:
Artigo
Similares
MEDLINE
...
LILACS
LIS