Effects of bortezomib combined with 5-azacytidine on the apoptosis of K562 cells and expression of SHIP mRNA / 中国实验血液学杂志
Journal of Experimental Hematology
;
(6): 1291-1294, 2014.
Article
in Chinese
| WPRIM
| ID: wpr-340511
ABSTRACT
This study was aimed to investigate the effects of bortezomib combined with 5-azacytidine on the apoptosis of K562 cells and expressiom of SHIP mRNA. The K562 cells were cultured and treated with different concentrations of bortezomib, 5-azacytidine or their combination for 24 hours. Then, the expression of SHIP mRNA was detected by RT-PCR,the cell proliferation was analyzed by using MTT assay and flow cytometry. The results showed that 5-20 nmol/L bortezomib could effectively inhibit the proliferation of K562 and this inhibitory effect gradually enhanced along with the increase of bortezomib concentration, the group of bortezomib combined with 5-azacytidine showed more inhibitory effect on K562 cells than that of bortezomib or 5-azacytidine alone.The bortezomib could promote the apoptosis of K562 cells in a dose-dependent manner,and this apoptotic effect was higher in group of bortezomib combined with 5-azacytidine than that in group of bortezomib or 5-azacytidine alone.Bortezomib could down-regulated the expression of SHIP mRNA in a dose-dependent manner,and this down-requlated effect was higher in group of bortezomib combined with 5-azacytidine than that in group of bortezomib or 5-azacytidine alone.It is concluded that bortezomib and 5-azacytidine can induce apoptosis by inhibiting the expression of SHIP mRNA in K562 cells.The combination of bortezomib with 5-azacytidine displays a synergetic effect.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Pyrazines
/
Azacitidine
/
Boronic Acids
/
RNA, Messenger
/
Apoptosis
/
Phosphoric Monoester Hydrolases
/
K562 Cells
/
Cell Proliferation
/
Bortezomib
Limits:
Humans
Language:
Chinese
Journal:
Journal of Experimental Hematology
Year:
2014
Type:
Article
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