Study on the inhibitory effect of CPT combined with chemotherapy drugs on gastric carcinoma cells in vitro / 国际外科学杂志
International Journal of Surgery
;
(12): 329-334, 2020.
Article
in Chinese
| WPRIM
| ID: wpr-863332
ABSTRACT
Objective:
To study the inhibitory effect of CPT combined with 5-Fluorouracil (5-Fu), Oxaliplatin(L-OHP) on gastric carcinoma cells in vitro.Methods:
MGC823 and SGC7901 gastric carcinoma cell lines were selected for culture and passage. The two cell lines were distributed into blank control group, CPT group, 5-Fu group, L-OHP group, 5-Fu+ CPT group and L-OHP+ CPT group. The blank control group was not given any drugs, CPT group was given CPT 1 000 μg/ml 2-fold dilution until 0.004 μg/ml; 5-Fu group was given 5-Fu 2.5×10 6 ng/ml 10-fold dilution until 2.5×10 -4 ng/ml; L-OHP group was given L-OHP 1 000 μg/ml 2-fold dilution up to 0.002 μg/ml; 5-Fu+ CPT group was given 5-Fu step concentration 2.5×10 6 ng/ml 10-fold dilution up to 2.5×10 -8 ng/ml, and combined with CPT 300 ng/ml; L-OHP+ CPT group was given a 2-fold dilution of L-OHP step concentration 1 000 μg/ml up to 0.24 μg/ml and combined with CPT 300 ng/ml. The inhibition effect of cells after drug action was detected. The 50% inhibitive concentration (IC 50) of medicines and the synergistic effect of the combined drugs were analyzed. The measurement data were expressed as Mean ± standard deviation ( Mean± SD), and the t-test was used for comparison between groups.Results:
The inhibition rate of 5-Fu+ CPT group was significantly higher than that of 5-Fu group, the differences in MGC823 and SGC7901 cell lines were statistically significant ( P=0.002, 0.009). The inhibition rate of L-OHP+ CPT group was also significantly higher than that of L-OHP group, the differences in MGC823 and SGC7901 cell lines were statistically significant ( P=0.037, 0.040). Compared with 5-Fu+ L-OHP group, IC 50 value of 5-Fu+ CPT group and L-OHP+ CPT group decreased significantly, the differences in MGC823 and SGC7901 cell lines were statistically significant (all P<0.001). The survival fraction of 5-Fu and L-OHP combined with CPT on the two cell lines was lower than 70%, which was estimated by Weeb coefficient.Conclusions:
The combination of 5-Fu, L-OHP and CPT can significantly improved the inhibitory effect on MGC823 and SGC7901 cell lines. 5-Fu, L-OHP and CPT had good synergistic effect.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
International Journal of Surgery
Year:
2020
Type:
Article
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