GAO Wei,ZENG Hairong,LE Jiamin.Brusatol Suppresses Proliferation of Human Gastric Cancer HGC-27 Cells Through Inducing Ferroptosis via Nrf2/HO-1 Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(02):81-87.
GAO Wei,ZENG Hairong,LE Jiamin.Brusatol Suppresses Proliferation of Human Gastric Cancer HGC-27 Cells Through Inducing Ferroptosis via Nrf2/HO-1 Pathway[J].Chinese Journal of Experimental Traditional Medical Formulae,2023,29(02):81-87. DOI: 10.13422/j.cnki.syfjx.20221628.
Brusatol Suppresses Proliferation of Human Gastric Cancer HGC-27 Cells Through Inducing Ferroptosis via Nrf2/HO-1 Pathway
To study effect of brusatol (BR) on proliferation of human gastric cancer HGC-27 cells and its mechanism.
Method
2
Cell counting kit-8 (CCK-8) was used to detect the survival rate of HGC-27 cells at different concentrations of BR. HGC-27 cells were treated with BR (7.5, 15, 30 μmol·L
-1
) for 24 h, and then the cell clone formation was analyzed. 2,7-Dichlorodihydrofluorescein diacetate (DCFH-DA) fluorescent probe and lipid peroxidation sensor (C11-BODIPY) were employed to detect the levels of intracellular reactive oxygen species (ROS) and lipid peroxidation, respectively. Real-time polymerase chain reaction (Real-time PCR) and Western blot were performed to detect the messenger ribonucleic acid (mRNA) and protein expressions of solute carrier family 7 member 11 (SLC7A11), glutathione peroxidase 4 (GPX4), solute carrier family 40 member 1 (SLC40A1), transferrin, nuclear factor E
2
-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1), respectively.
Result
2
The survival rate of HGC-27 cells was decreased with the increase of BR concentration, and the IC
50
was 15.34 μmol·L
-1
. Compared with the conditions in blank group, the cell clone formation of BR (7.5, 15, 30 μmol·L
-1
) groups was inhibited in a dose-dependent manner (
P<
0.05,
P<
0.01), while the levels of intracellular ROS and lipid peroxidation, iron concentration, and lactic dehydrogenase (LDH) leakage were increased in a dose-dependent manner (
P<
0.05,
P<
0.01). Compared with the blank group, the BR (15, 30 μmol·L
-1
) groups lowered the mRNA and protein expressions of SLC7A11, GPX4, SLC40A1, Nrf2 and HO-1, while elevated the mRNA and protein expression of TRF in a dose-dependent manner (
P<
0.05,
P<
0.01).
Conclusion
2
BR suppressed the proliferation of HGC-27 cells through inducing ferroptosis via inhibiting Nrf2/HO-1 pathway.
关键词
Keywords
references
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