Diplacone Isolated from Paulownia tomentosa Mature Fruit Induces Ferroptosis-Mediated Cell Death through Mitochondrial Ca2+ Influx and Mitochondrial Permeability Transition
The recently defined type of cell death ferroptosis has garnered significant attention as a potential new approach to cancer treatment owing to its more immunogenic nature when compared with apoptosis. Ferroptosis is characterized by the depletion of glutathione (GSH)/glutathione peroxidase-4 (GPx4) and iron-dependent lipid peroxidation. Diplacone (DP), a geranylated flavonoid compound found in Paulownia tomentosa fruit, has been identified to have anti-inflammatory and anti-radical activity. In this study, the potential anticancer activity of DP was explored against A549 human lung cancer cells. It was found that DP induced a form of cytotoxicity distinct from apoptosis, which was accompanied by extensive mitochondrial-derived cytoplasmic vacuoles. DP was also shown to increase mitochondrial Ca2+ influx, reactive oxygen species (ROS) production, and mitochondrial permeability transition (MPT) pore-opening. These changes led to decreases in mitochondrial membrane potential and DP-induced cell death. DP also induced lipid peroxidation and ATF3 expression, which are hallmarks of ferroptosis. The ferroptosis inhibitors ferrostatin-1 and liproxstatin-1 were effective in counteracting the DP-mediated ferroptosis-related features. Our results could contribute to the use of DP as a ferroptosis-inducing agent, enabling studies focusing on the relationship between ferroptosis and the immunogenic cell death of cancer cells.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:24 |
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Enthalten in: |
International journal of molecular sciences - 24(2023), 8 vom: 11. Apr. |
Sprache: |
Englisch |
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Beteiligte Personen: |
Kang, Myung-Ji [VerfasserIn] |
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Links: |
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Themen: |
Diplacone |
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Anmerkungen: |
Date Completed 01.05.2023 Date Revised 09.11.2023 published: Electronic Citation Status MEDLINE |
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doi: |
10.3390/ijms24087057 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM356117952 |
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520 | |a The recently defined type of cell death ferroptosis has garnered significant attention as a potential new approach to cancer treatment owing to its more immunogenic nature when compared with apoptosis. Ferroptosis is characterized by the depletion of glutathione (GSH)/glutathione peroxidase-4 (GPx4) and iron-dependent lipid peroxidation. Diplacone (DP), a geranylated flavonoid compound found in Paulownia tomentosa fruit, has been identified to have anti-inflammatory and anti-radical activity. In this study, the potential anticancer activity of DP was explored against A549 human lung cancer cells. It was found that DP induced a form of cytotoxicity distinct from apoptosis, which was accompanied by extensive mitochondrial-derived cytoplasmic vacuoles. DP was also shown to increase mitochondrial Ca2+ influx, reactive oxygen species (ROS) production, and mitochondrial permeability transition (MPT) pore-opening. These changes led to decreases in mitochondrial membrane potential and DP-induced cell death. DP also induced lipid peroxidation and ATF3 expression, which are hallmarks of ferroptosis. The ferroptosis inhibitors ferrostatin-1 and liproxstatin-1 were effective in counteracting the DP-mediated ferroptosis-related features. Our results could contribute to the use of DP as a ferroptosis-inducing agent, enabling studies focusing on the relationship between ferroptosis and the immunogenic cell death of cancer cells | ||
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700 | 1 | |a Song, Yu Na |e verfasserin |4 aut | |
700 | 1 | |a Huh, Yang Hoon |e verfasserin |4 aut | |
700 | 1 | |a Park, Ji-Yoon |e verfasserin |4 aut | |
700 | 1 | |a Oh, Seon Min |e verfasserin |4 aut | |
700 | 1 | |a Lee, Su-Yeon |e verfasserin |4 aut | |
700 | 1 | |a Park, Yhun Jung |e verfasserin |4 aut | |
700 | 1 | |a Kim, Doo-Young |e verfasserin |4 aut | |
700 | 1 | |a Ro, Hyunju |e verfasserin |4 aut | |
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700 | 1 | |a Moon, Dong-Oh |e verfasserin |4 aut | |
700 | 1 | |a Kim, Mun-Ock |e verfasserin |4 aut | |
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