Effects of bortezomib alone or combined with arsenic trioxide on the apoptosis of Jurkat cells and expression of livin mRNA / 中国实验血液学杂志

ABSTRACT

This study was aimed to investigate the effect of bortezomib alone or combined with arsenic trioxide on the apoptosis of Jurkat cells and expression of livin mRNA. The Jurkat cells were cultured and treated with different concentrations of bortezomib, arsenic trioxide or their combination for 24 hours. Then, the expression of livin mRNA was detected by RT-PCR, the cell proliferation was analyzed with MTT assay and flow cytometry. The results showed that 5 - 25 nmol/L bortezomib could effectively inhibit Jurkat cells in a dose-dependent manner, the group of bortezomib combined with arsenic trioxide showed more inhibitory effect on Jurkat cells than the effect of bortezomib alone or arsenic trioxide alone on Jurkat cells. The expression of livin mRNA in Jurkat cells decreased in a dose-dependent manner after treated with bortezomib, which was downregulated significantly after combined treatment. It is concluded that bortezomib and arsenic trioxide can induce apoptosis by inhibiting the expression of livin mRNA in Jurkat cells. The combination of bortezomib with arsenic trioxide displays a synergistic effect.