SUI Tong-tong, TIAN Li-chun, ZHANG Xin, et al. Synergistic Effect of Cantharidin and Pemetrexed on HCT116 Colorectal Cancer Cells[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(16): 43-48.
SUI Tong-tong, TIAN Li-chun, ZHANG Xin, et al. Synergistic Effect of Cantharidin and Pemetrexed on HCT116 Colorectal Cancer Cells[J]. Chinese journal of experimental traditional medical formulae, 2018, 24(16): 43-48. DOI: 10.13422/j.cnki.syfjx.20181618.
Objective: To explore the combination of pemetrexed (MTA) and cantharidin (CTD) in vitro. Method: Human colorectal cancer HCT116 cells were treated with MTA
CTD or a combination of MTA and CTD. The cell growth
apoptosis and senescence were evaluated using a colony formation assay
flow cytometry and a senescence-combined β-galactosidase assay
respectively. The expressions of pro-cysteine aspartate-specific protpase(Caspase)-3 and cleaved poly adenosine diphosphate ribose polymerase(PARP) were measured using Western blot. The combination index (CI) was calculated using CompuSyn software to evaluate synergism. Result: In HCT116 cells
the combination therapy group (50 nmol·L-1 MTA +4 μmol·L-1 CTD) showed significant decreases in cell growth (P<0.01)
apoptosis (P<0.01) and cell senescence (P<0.05) compared with those of the solitary MTA therapy group. The expression of pro-Caspase-3 was significantly decreased
and the expression of cleaved-PARP was significantly increased in the combination group (P<0.01). The CI value (CI<1) showed a synergistic effect in these two agents. Conclusion: The combination of MTA and CTD synergistically suppresses human colorectal cancer HCT116 cells in vitro and exerts an antitumor effect by inducing apoptosis and senescence. Therefore
the present study provides a new candidate strategy for the treatment of colorectal cancer.