Effect of valproic acid against angiogenesis of Kasumi-1 xenograft tumor in nude mice / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 73-77, 2013.
Artigo
em Chinês
| WPRIM
| ID: wpr-325209
ABSTRACT
This study was aimed to investigate the effect of valproic acid (VPA), a histone deacetylase inhibitor, on angiogenesis of acute myeloid leukemia in vivo and vitro, and to explore its molecular mechanism. Human t (8;21) AML cell line Kasumi-1 cells were treated with VPA at different concentration for 3 d, the mRNA and protein expression levels of Ang1 and Ang2 were determined by semi-quantitative RT-PCR and Western blot respectively. Nude mice model with xenograft Kasumi-1 tumor was established by subcutaneous inoculation of Kasumi-1 cells. The CD34, Ang1 and Ang2 protein levels were analyzed by immunohistochemistry method. The mRNA and protein expression levels of Ang1, Ang2 and VEGF were determined by semi-quantitative RT-PCR and Western blot. The results showed that in vitro, VPA at 3 mmol/L downregulated the Ang mRNA relative expression level for Ang1 from 0.360 ± 0.116 to 0.040 ± 0.008, Ang2 from 0.540 ± 0.049 to 0.146 ± 0.038. The animal experiment further verified that VPA 500 mg/kg, ip, for 14 d, reduced the relative expression of Ang1, Ang2 and VEGF mRNA and proteins in Kasumi-1 tumor of nude mice, and reduced microvascular density in xenograft tumor of nude mice (8.470 ± 0.300 vs 2.600 ± 0.200). It is concluded that VPA significantly inhibits tumor angiogenesis through the regulation of angiopoietins, thereby inhibits the proliferation and metastasis of leukemia cells.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Farmacologia
/
RNA Mensageiro
/
Leucemia Mieloide Aguda
/
Ácido Valproico
/
Antígenos CD34
/
Ensaios Antitumorais Modelo de Xenoenxerto
/
Linhagem Celular Tumoral
/
Angiopoietinas
/
Fator A de Crescimento do Endotélio Vascular
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
/
Feminino
/
Humanos
Idioma:
Chinês
Revista:
Journal of Experimental Hematology
Ano de publicação:
2013
Tipo de documento:
Artigo
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