The effects of crinum asiaticum on the apoptosis induction and the reversal of multidrug resistance in hl-60/mx2

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Abstract

The present study investigated the anti-proliferative and chemosensitizing effects of Crinum asiaticum van japonicum against multi-drug resistant (MDR) cancer cells. The 80% methanol extract, chloroform (CHCI 3) fraction and butanol (BuOH) fraction of C. asiaticum inhibited the growth of mitoxantrone (MX) resistant HL-60 (HL-60/MX2) cells. When HL-60/MX2 cells were treated with the CHCI 3 and BuOH fractions, DNA ladder and sub-G1 hypodiploid cells were observed. Furthermore, the fractions reduced Bcl-2 mRNA levels, whereas Bax mRNA levels were increased. These results suggest that the inhibitory effect of C. asiaticum on the growth of the HL-60/MX2 cells might arise from the induction of apoptosis. Treatment of HL-60/MX2 cells with the fractions markedly decreased the mRNA levels of the multi-drug resistance protein-1 and breast cancer resistance protein. The CHCI 3 fraction and hexane fraction increased MX accumulation in HL-60/MX2 cells. These results imply that the CHCI 3 fraction of C. asiaticum plays a pivotal role as a chemosensitizer. We suggest that components of C. asiaticum might have a therapeutic potential for the treatment of MDR leukemia.

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Hyun, J. H., Kang, J. ll, Kim, S. C., Kim, E., Kang, J. H., Kwon, J. M., … Kang, H. K. (2008). The effects of crinum asiaticum on the apoptosis induction and the reversal of multidrug resistance in hl-60/mx2. Toxicological Research, 24(1), 29–36. https://doi.org/10.5487/TR.2008.24.1.029

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