[Effect of EPHA2-siRNA plasmid on biological behavior of human osteosarcoma cells in vitro].
Zhonghua Zhong Liu Za Zhi
; 29(8): 566-9, 2007 Aug.
Article
en Zh
| MEDLINE
| ID: mdl-18210872
OBJECTIVE: To investigate the role of EPHA2 in regulating apoptosis, proliferation and vasculogenic mimicry of osteosarcoma cells, by gene silencing through RNA interference. METHODS: EPHA2-siRNA plasmids were achieved by gene cloning. The plasmids were transfected into human osteosarcoma cells (MG63). The expression level of EPHA2 protein was measured by Western blotting. The proliferation, apoptosis and vasculogenic mimicry features of osteosarcoma MG63cells were assessed by light microscopy, MTIP assay, flow cytometry, annexin V-FITC/PI and HE staining, respectively. RESULTS: The EPHA2-siRNA plasmid was confirmed by DNA sequencing. After treatment with Sequence-specific siRNA targeted EPHA2, the protein level of the transfected group decreased significantly. As compared to non-siRNA transfected cells, the transfected group showed lower proliferation, higher and earlier apoptosis and less osteosarcoma-generated vasculogenic mimicry. CONCLUSION: EPHA2 gene may be involoved in apoptosis and proliferation of osteosarcoma cells, and may be necessary for vasculogenic mimicry. Down-regulation of EPHA2 expression by sequence-specific siRNA may be considered as a new option in the treatment of EPHA2 over-expressing cancer including osteosarcoma in future.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Neoplasias Óseas
/
Osteosarcoma
/
Apoptosis
/
Receptor EphA2
/
ARN Interferente Pequeño
Límite:
Humans
Idioma:
Zh
Revista:
Zhonghua Zhong Liu Za Zhi
Año:
2007
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
China