High-Dose Selenium Induces Ferroptotic Cell Death in Ovarian Cancer

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Název: High-Dose Selenium Induces Ferroptotic Cell Death in Ovarian Cancer
Přispěvatelé: Jung-A Choi, Elizabeth Hyeji Lee, Hanbyoul Cho, Jae-Hoon Kim, Kim, Jae Hoon
Informace o vydavateli: MDPI
Rok vydání: 2023
Témata: Animals, Cell Death, Female, Glutathione Peroxidase / metabolism, Humans, Mice, Ovarian Neoplasms* / drug therapy, Selenium* / metabolism, Selenium* / pharmacology, Selenoproteins, Sodium Selenite / metabolism, Sodium Selenite / pharmacology, GPx4, ferroptosis, lipid peroxidation, ovarian cancer, selenium
Popis: Selenium is a promising multi-target chemotherapeutic agent with controversial clinical results. Hence, reassessing the anticancer effects of Se is necessary to clearly understand the potential of high-dose selenium in cancer treatment. Here, we observed that high-dose sodium selenite (SS) significantly decreased the proliferation and increased the death of ovarian cancer cells, mediated by an increased generation of reactive oxygen species. Notably, high-dose SS decreased the levels of glutathione peroxidase (GPx), a selenoprotein with antioxidant properties, without altering other selenoproteins. Furthermore, high-dose SS triggered lipid peroxidation and ferroptosis, a type of iron-dependent cell death, due to dysregulated GPx4 pathways. We demonstrated that intravenous high-dose SS significantly reduced the tumor growth and weight in SKOV3-bearing mice. Consistent with our in vitro results, mice with SKOV3 cells treated with high-dose SS showed decreased GPx4 expression in tumors. Therefore, we highlight the significance of high-dose SS as a potential chemotherapeutic agent for ovarian cancer. High-dose SS-mediated ferroptotic therapy integrating glutathione depletion and ROS generation is a promising strategy for cancer therapy. ; open
Druh dokumentu: article in journal/newspaper
Jazyk: English
Relation: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES; J01133; https://ir.ymlib.yonsei.ac.kr/handle/22282913/193714; T202301623
DOI: 10.3390/ijms24031918
Dostupnost: https://ir.ymlib.yonsei.ac.kr/handle/22282913/193714
https://doi.org/10.3390/ijms24031918
Rights: CC BY-NC-ND 2.0 KR
Přístupové číslo: edsbas.FC09036A
Databáze: BASE
Popis
Abstrakt:Selenium is a promising multi-target chemotherapeutic agent with controversial clinical results. Hence, reassessing the anticancer effects of Se is necessary to clearly understand the potential of high-dose selenium in cancer treatment. Here, we observed that high-dose sodium selenite (SS) significantly decreased the proliferation and increased the death of ovarian cancer cells, mediated by an increased generation of reactive oxygen species. Notably, high-dose SS decreased the levels of glutathione peroxidase (GPx), a selenoprotein with antioxidant properties, without altering other selenoproteins. Furthermore, high-dose SS triggered lipid peroxidation and ferroptosis, a type of iron-dependent cell death, due to dysregulated GPx4 pathways. We demonstrated that intravenous high-dose SS significantly reduced the tumor growth and weight in SKOV3-bearing mice. Consistent with our in vitro results, mice with SKOV3 cells treated with high-dose SS showed decreased GPx4 expression in tumors. Therefore, we highlight the significance of high-dose SS as a potential chemotherapeutic agent for ovarian cancer. High-dose SS-mediated ferroptotic therapy integrating glutathione depletion and ROS generation is a promising strategy for cancer therapy. ; open
DOI:10.3390/ijms24031918