YANG LIU, FENG DAN, YANG LI, et al. Effects of galangin on proliferation,apoptosis and 5-FU resistance of colorectal cancer cells by regulating FOXO3-FOXM1 axis. [J]. Journal of regional anatomy and operative surgery, 2025, 34(1): 5-10.
DOI:
YANG LIU, FENG DAN, YANG LI, et al. Effects of galangin on proliferation,apoptosis and 5-FU resistance of colorectal cancer cells by regulating FOXO3-FOXM1 axis. [J]. Journal of regional anatomy and operative surgery, 2025, 34(1): 5-10. DOI: 10.11659/jjssx.01E024030.
Effects of galangin on proliferation,apoptosis and 5-FU resistance of colorectal cancer cells by regulating FOXO3-FOXM1 axis
To investigate the effects of galangin on the proliferation,apoptosis,and 5-fluorouracil (5-FU) resistance of colorectal cancer (CRC) cells by regulating the FOXO3-FOXM1 axis.
Methods
2
CRC cells HCT8 and its drug-resistant cell lines HCT8/5-FU were cultured in vitro,and then treated with different concentrations (0,5,10,20,40 µmol/L) of galangin to screen experimental concentrations. HCT8 cells were divided into the ctrl group (without special treatment),NC group (transfected with empty plasmid),L-galangin group (treated with 10 μmol/L of galangin ),H-galangin group (treated with 20 μmol/L of galangin),and H-galangin+sh-FOXO3 group (transfected with FOXO3 shRNA plasmid after 20 μmol/L of galangin treatment). HCT8/5-FU cells were divided into the control group (without special treatment),5-FU+NC group (treated with empty plasmid after 5 µg/mL of 5-FU treatment),5-FU group (treated with 5 µg/mL of 5-FU),5-FU+L-galangin group (treated with 10 μmol/L of galangin after 5 µg/mL of 5-FU treatment),5-FU+H-galangin group (transfected with 20 μmol/L galangin after 5 µg/mL of 5-FU treatment),and 5-FU+H-galangin+sh-FOXO3 group (transfected with FOXO3 shRNA plasmid after 5 µg/mL of 5-FU and 20 μmol/L of galangin treatment). The cell proliferation ability was detected by CCK-8 assay; the cell clone formation ability was detected by clone formation assay; the cell apoptosis was detected by flow cytometry ; the expression of related proteins were detected by Western blot.
Results
2
In HCT8 cells,compared with 0 µmol/L of galangin treatment,10,20,40 µmol/L of galangin treatment decreased the cell survival rate (
P
<
0.05). In HCT8/5-FU cells,compared with 0 µmol/L galangin treatment,40 µmol/L of galangin treatment decreased the cell survival rate (
P
<
0.05). After 10 and 20 µmol/L of galangin treatment,the apoptosis rate,and the expression of FOXO3 and Bax proteins were increased (
P
<
0.05),while ce
ll survival rate,clone formation number,and expression of FOXM1 and PCNA proteins decreased in HCT8 and HCT8/5-FU cells (
P
<
0.05),and the MRP-1 protein expression in HCT8/5-FU cells decreased (
P
<
0.05). Knocking down sh-FOXO3 could attenuate the effects of high dose of galangin on HCT8 and HCT8/5-FU cells (
P
<
0.05).
Conclusion
2
Galangin may inhibit the proliferation,promote apoptosis,and reduce 5-FU resistance of CRC cells by regulating the FOXO3-FOXM1 axis.
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