Therapeutic effect of in vitro 5-aza-2'-deoxycytidine combined with imatinib on gastrointestinal stromal tumor / 中华胃肠外科杂志
Chinese Journal of Gastrointestinal Surgery
;
(12): 266-270, 2012.
Artigo
em Chinês
| WPRIM
| ID: wpr-290805
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the impact of 5-aza-2'-deoxycytidine(5-aza-CdR) combined with imatinib on the proliferation, motility, invasion, and apoptosis of gastrointestinal stromal tumors(GIST) cells in vitro.</p><p><b>METHODS</b>MTT assay was used to investigate the effect of the two agents on proliferation of GIST882. Plate colony forming assay was used to determine the number of colony-forming. Motility and invasion abilities were tested to evaluate the inhibitory effect of each agent. Flow cytometry was used to observe apoptosis and cell cycle.</p><p><b>RESULTS</b>5-aza-CdR or imatinib effectively inhibited the growth of GIST882 cells in concentration- and time-dependent manner. The inhibitory rate of combined treatment using 5-aza-CdR and imatinib was significantly higher than that of 5-aza-CdR or imatinib alone(P<0.05). After treatment for 48 h, the apoptosis rates of 5-aza-CdR group (1000 μg/L) and imatinib group (100 μmol/L) were (11.7±1.2)% and (14.6±0.8)%, respectively. Compared with the control group (2.8±0.3)%, the difference was statistically significant(P=0.000). Furthermore, the difference in apoptosis rate was significant between combined treatment group (19.4±1.1)% and single drug treatment group(vs. 5-aza-CdR group, P=0.000, vs. imatinib group, P=0.013). 5-aza-CdR raised G0/G1 ratio and reduced S ratio of GIST882. Imatinib and combined group had no apparent influence on the cell cycle of GIST882 cells.</p><p><b>CONCLUSION</b>5-aza-CdR may be a potential agent of GIST treatment in the near future.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Farmacologia
/
Piperazinas
/
Pirimidinas
/
Azacitidina
/
Benzamidas
/
Ciclo Celular
/
Sobrevivência Celular
/
Apoptose
/
Linhagem Celular Tumoral
Limite:
Humanos
Idioma:
Chinês
Revista:
Chinese Journal of Gastrointestinal Surgery
Ano de publicação:
2012
Tipo de documento:
Artigo
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