Antioxidants with two faces toward cancer.

Area of Science:

• Biochemistry
• Oncology
• Pharmacology

Background:

• Antioxidants neutralize reactive oxygen and nitrogen species, crucial for cellular health.
• Antioxidants, particularly natural phenolic compounds from medicinal plants, are explored for cancer prevention and treatment.
• Existing beliefs suggest antioxidants universally prevent and treat malignancies.

Purpose of the Study:

• To review the complex role of antioxidants in cancer development and prevention.
• To evaluate the dual nature of antioxidants in oncogenesis.
• To assess the potential of natural antioxidant compounds in cancer therapy.

Main Methods:

• Literature review of studies on antioxidants and cancer.
• Analysis of research on phenolic compounds from medicinal plants.
• Examination of recent findings on antioxidant effects in cancer initiation and progression.

Main Results:

• Antioxidants exhibit a "two-faced" role in cancer, with some promoting initiation and progression.
• Natural antioxidant compounds, including phenolics, show promise but lack absolute anti-tumor properties.
• Evidence suggests a complex interaction between antioxidants and cancer, not a simple protective effect.

Conclusions:

• Antioxidants possess a dual role in cancer development, acting as both protective and promoting agents.
• Further in vitro and in vivo studies are essential to elucidate the precise mechanisms and confirm the role of antioxidants in cancer.
• Targeted application of specific antioxidants may be required for efficient cancer treatment, pending further validation.