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Published on: February 23, 2024
Anticancer activity of flavonoids accompanied by redox state modulation and the potential for a chemotherapeutic
Yongkyu Lee1, Jehyung Lee2, Changbaek Lim3
1Foood and Nutrition, College of Science and Engineering, Dongseo University, Jurae-ro 47, Sasang-Gu, Busan, 47011 Korea.
Abstract:
Since researchers began studying the mechanism of flavonoids' anticancer activity, little attention has been focused on the modulation of redox state in cells as a potential chemotherapeutic strategy. However, recent studies have begun identifying that the anticancer effect of flavonoids occurs both in their antioxidative activity which scavenges ROS and their prooxidative activity which generates ROS. Against this backdrop, this study attempts to achieve a comprehensive analysis of the individual and separate study findings regarding flavonoids' modulation of redox state in cancer cells. It focuses on the mechanism behind the anticancer effect, and mostly on the modulation of redox potential by flavonoids such as quercetin, hesperetin, apigenin, genistein, epigallocatechin-3-gallate (EGCG), luteolin and kaempferol in both in vitro and animal models. In addition, the clinical applications of and bioavailability of flavonoids were reviewed to help build a treatment strategy based on flavonoids' prooxidative potential.
Insights
Flavonoids exhibit anticancer effects by modulating cellular redox state through both antioxidant and prooxidant activities. This study analyzes their mechanisms and potential as cancer therapeutics.
Area of Science:
- Biochemistry
- Pharmacology
- Oncology
Background:
- Flavonoids possess anticancer properties, but their redox-modulating mechanisms are underexplored.
- Their anticancer effects stem from both ROS-scavenging (antioxidant) and ROS-generating (prooxidant) activities.
Purpose of the Study:
- To comprehensively analyze how flavonoids modulate the redox state in cancer cells.
- To elucidate the anticancer mechanisms of specific flavonoids, focusing on redox potential.
- To review clinical applications and bioavailability for developing flavonoid-based therapies.
Main Methods:
- In vitro studies on cancer cell lines.
- Animal models to assess anticancer effects.
- Literature review of clinical applications and bioavailability of flavonoids.
Main Results:
- Flavonoids like quercetin, genistein, and EGCG modulate cellular redox balance.
- Both antioxidant and prooxidant actions contribute to flavonoid anticancer activity.
- Specific flavonoids show promise in preclinical cancer models.
Conclusions:
- Flavonoids are potent modulators of cancer cell redox state.
- Targeting redox potential with flavonoids offers a promising chemotherapeutic strategy.
- Further research into flavonoid bioavailability and clinical efficacy is warranted.
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