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Title: Reactive oxygen species: Key players in the anticancer effects of apigenin?
Authors: Oyenihi, Omolola R. 
Oyenihi, Ayodeji Babatunde 
Alabi, Toyin D. 
Tade, Oluwatosin G. 
Adeyanju, Anne A. 
Oguntibeju, Oluwafemi Omoniyi 
Keywords: Antioxidant;apigenin;cancer;clinical translation;free radicals;pro-oxidant
Issue Date: 2022
Publisher: Wiley
Source: Oyenihi, O. R., Oyenihi, A. B., Alabi, T. D. et al. 2022. Reactive oxygen species: Key players in the anticancer effects of apigenin?. Journal of Food Biochemistry, 46: e14060. []
Journal: Journal of Food Biochemistry 
Abstract: Reactive oxygen species (ROS) exhibit a double-edged sword in cancer—hence their modulation has been an attractive strategy in cancer prevention and therapy. The abundance of scientific information on the pro-oxidant effects of apigenin in cancer cells suggests the crucial role of ROS in its mechanisms of action. Although apigenin is known to enhance the cellular ROS levels to cytotoxic degrees in cancer cells in vitro, it remains to be determined if these pro-oxidant effects prevail or are relevant in experimental tumor models and clinical trials. Here, we critically examine the prooxidant and antioxidant effects of apigenin in cancer to provide insightful perspectives on the association between its ROS-modulating action and anticancer potential. We also discussed these effects in a cell/tissue type-specific context to highlight the factors influencing the switch between antioxidant and pro-oxidant effects. Finally, we raised some questions that need addressing for the potential translation of these studies into clinical applications. Further research into this duality in oxidant actions of apigenin, especially in vivo, may enable better exploitation of its anticancer potential. Practical application: Apigenin is a naturally occurring compound found in chamomile flowers, parsley, celery, peppermint, and citrus fruits. Many human trials of dietary interventions with apigenin-containing herbs and flavonoid mixture on oxidative stress markers, for instance, point to their antioxidant effects and health benefits in many diseases. Preclinical studies suggest that apigenin alone or its combination with chemotherapeutics has a strong anti-neoplastic effect and can induce ROS-mediated cytotoxicity at concentrations in the micromolar (μM) range, which may not be feasible with dietary interventions. Enhancing the in vivo pharmacokinetic properties of apigenin may be indispensable for its potential cancer-specific pro-oxidant therapy and may provide relevant information for clinical studies of apigenin either as a single agent or an adjuvant to chemotherapeutics.
Description: Article
ISSN: 1745-4514
Appears in Collections:HWSci - Journal Articles (DHET subsidised)

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