Influence of RNA interference on MSI-2 gene in THP-1 cell and expression of NUMB / 中华血液学杂志
Chinese Journal of Hematology
; (12): 858-861, 2015.
Article
em Zh
| WPRIM
| ID: wpr-296135
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of small interfering RNA(siRNA)for MSI-2 on the growth, apoptosis and NUMB expression of THP-1 cells.</p><p><b>METHODS</b>Three siRNA for MSI-2 gene was designed and transfected into THP- 1 cells. The cell inhibition, colony formation and apoptosis were determined. The protein expression of NUMB, caspase- 3 and PARP were detected by Western blotting.</p><p><b>RESULTS</b>After MSI- 2 expression of THP- 1 cells was down- regulated for 24 hours, cell inhibition of siRNA MSI-2 group was(47.89±7.64)%, obviously higher than that of negative control group(P=0.005). After 9 days, cell colony count of siRNA MSI-2 group was 7.50±1.53, also lower than that of negative control group(35.75±7.46, P<0.001). In addition, apoptotic rates of siRNA MSI- 2 group at 24 hours [(15.22±1.52)%]and 48 hours[(33.83±3.96)%]were significantly higher than those of negative control group(P=0.008 and P=0.001, respectively). Accordingly, activations of caspase-3 and PARP and increased NUMB were observed in siRNA MSI- 2 group.</p><p><b>CONCLUSION</b>siRNA for MSI- 2 gene could increase the expressions of NUMB to inhibit the proliferation and induce apoptosis of THP-1 cells.</p>
Texto completo:
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Base de dados:
WPRIM
Assunto principal:
Transfecção
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Regulação para Baixo
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Proteínas de Ligação a RNA
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Poli(ADP-Ribose) Polimerases
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Apoptose
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RNA Interferente Pequeno
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Interferência de RNA
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Linhagem Celular Tumoral
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Proliferação de Células
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Caspase 3
Limite:
Humans
Idioma:
Zh
Revista:
Chinese Journal of Hematology
Ano de publicação:
2015
Tipo de documento:
Article