AI Article Synopsis
- The study looked at a protein called FUT4 that might help lung cancer cells survive against a chemotherapy drug called cisplatin.
- Researchers tested how changing the amount of FUT4 affects the cancer cells' ability to die or grow when treated with cisplatin.
- They found that lowering FUT4 levels made the cancer cells more sensitive to the drug, leading to increased cell death and stopping their growth.
Article Abstract
Background: Increased fucosylation is associated with the chemoresistance phenotype. Meanwhile, fucosyltransferase IV (FUT4) amounts are frequently elevated in lung cancer and may be related to increased chemoresistance.
Methods: In the present work, FUT4's role in cisplatin-induced apoptosis was assessed in A549 and H1975 cells, respectively. To clarify whether the FUT4 gene attenuates chemosensitivity in tumor cells, we constructed FUT4siRNA and evaluated its effects on cisplatin-induced apoptosis and cell growth inhibition. Cell viability, apoptosis, migration and invasion assay were conducted to investigate cisplatin sensitivity. The activation of EGFR/AKT/FOXO1 signaling were measured by western blot. The translocation of FOXO1 was assessed by IFC using Laser Scanning Confocal Microscope.
Results: We found that FUT4 knockdown dose-dependently increased cisplatin-associated cytotoxicity. Furthermore, FUT4 silencing induced apoptosis and inhibited proliferation in A549 and H1975 cells by suppressing Akt and FOXO1 phosphorylation induced by cisplatin administration, which resulted in nuclear translocation of FOXO1.
Conclusion: These results suggested FUT4 might control chemoresistance to cisplatin in lung cancer by suppressing FOXO1-induced apoptosis.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7501616 | PMC |
| http://dx.doi.org/10.1186/s12885-020-07324-z | DOI Listing |
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