4-Methyl-N-(Piperidin-1-Ylmethylene) Benzenesulfonamide (PMSA) Promotes Ferroptosis of Tumor Cells by Targeting the KEAP1-NRF2-GPX4 Axis
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Abstract
Background: We aimed to investigate the effect of 4-methyl-N-(piperidin-1-ylmethylene) benzenesulfonamide (PMSA) on tumor cell proliferation, migration, ferroptosis, and the potential molecular mechanism of ferroptosis in tumor cells.
Methods: PMSA was produced in the marine biomedical research institute of Guangdong Medical University (Zhanjiang, China) and used for tumor cells treatment. MTT and cell colony formation assays were used to measure the inhibition of tumor cell proliferation, the scratch assay was used to identified the suppression of tumor cell migration, the death of tumor cells was measured by Annexin-V-FITC/PI staining, the level of ferroptosis-relative lipid ROS in tumor cells was measured by flow cytometry and MDA detection kit, and the expression of ferroptosis-relative protein was measured by Western blot. The Discovery Studio system was used for molecular docking and the binding ability was measured by cellular thermal shift assay.
Results: The PMSA we produced inhibited tumor cell proliferation, colony formation, migration and triggered cell death, and Fer-1 could reverse these effects. The amount of ROS and MDA levels in tumor cells was also markedly raised by PMSA. PMSA treatment significantly reduced the expression of SLC7A11/XCT, NRF2, and GPX4 in tumor cells. The phosphorylation level of NRF2 was also decreased. Through molecular docking, it was discovered that PMSA could bind to NRF2 and thereby block its activity.
Conclusion: The KEAP1-NRF2-GPX4 axis was the target of PMSA’s anti-tumor action, which results in ferroptosis of tumor cells. This demonstrated that the compound has the potential to be used as a candidate for anti-tumor drugs.
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| Files | ||
| Issue | Vol 53 No 10 (2024) | |
| Section | Original Article(s) | |
| DOI | https://doi.org/10.18502/ijph.v53i10.16705 | |
| Keywords | ||
| Ferroptosis Benzenesulfonamide NF-E2-related factor-2 Glutathione peroxidase 4 | ||
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