Arginase Activity Inhibition With Thymoquinone Induces a Hybrid Type of Cell‐Death in MDA‐MB‐231 Cell Line
2025
Bday, Jaweher | Souid, Moufida | Pires, Vivien | Gabbouj, Sallouha | Véjux, Anne | Lizard, Gérard | Hassen, Elham | جامعة المنستير - Université de Monastir - University of Monastir (UM) | Centre des Sciences du Goût et de l'Alimentation [Dijon] (CSGA) ; Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro Dijon ; Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université Bourgogne Europe (UBE) | Laboratoire Bio-PeroxIL. Biochimie du peroxysome, inflammation et métabolisme lipidique [Dijon] (BIO-PEROXIL) ; Université de Bourgogne (UB)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Bourgogne Franche-Comté [COMUE] (UBFC) | Laboratoire Bio-PeroxIL. Biochimie du Peroxysome, Inflammation et Métabolisme Lipidique (Bio-PeroxIL) ; Université de Bourgogne (UB)
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اظهر المزيد [+] اقل [-]إنجليزي. Arginase plays a crucial role in the urea cycle; it also has immunosuppressive and pro‐tumor effects. The present study aimed to assess the effects of arginase inhibition by thymoquinone (2‐Isopropyl‐5‐methyl‐1,4‐benzoquinone), an active compound of Nigella sativa , on cell death in the MDA‐MB‐231 triple‐negative breast tumor cell line. Cell viability assays, Western blot analysis, and flow cytometry analysis were used to characterize oxidative stress and cell death. Our results showed that inhibition of arginase activity with thymoquinone significantly increased intracellular nitric oxide levels and resulted in overproduction of cellular and mitochondrial reactive oxygen species. Reductions in cell viability, cycle arrest, and increased cell death were also observed. Loss of transmembrane mitochondrial potential, activation of caspase‐3, ‐7, and ‐9, cleavage of PARP, condensation and/or fragmentation of the nuclei, suggest that this cell death involved apoptosis. Furthermore, a cytoplasm vacuole formation and an increase in the ratio of [LC3‐II/LC3‐I] suggests a concomitant activation of autophagy with apoptosis. Altogether, the present study highlighted that arginase inhibition with thymoquinone induces a hybrid type of cell death defined as oxiapoptophagy. Thus, arginase inhibition with thymoquinone in the MDA‐MB‐231 cell line could be, in part, involved in the anticancer effect of thymoquinone.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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تم تزويد هذا السجل من قبل Institut national de la recherche agronomique