Epigenetic mechanisms in anti-cancer actions of bioactive food components--the implications in cancer prevention

Area of Science:

• Epigenetics
• Nutritional Science
• Cancer Biology

Background:

• Carcinogenesis involves genetic and epigenetic alterations affecting gene expression.
• Epigenetics, changes in gene expression without altering DNA sequence, includes DNA methylation, histone modification, and non-coding RNA regulation.
• Epigenetic modifications are dynamic, influenced by environmental factors like diet, and play roles in development and genome stability.

Purpose of the Study:

• To explore how natural bioactive compounds in food and herbs can modulate epigenetic machinery.
• To investigate the role of nutrients in one-carbon metabolism on DNA methylation.
• To examine the impact of compounds like vitamin D and resveratrol on histone modifications and non-coding RNAs.

Main Methods:

• Review of studies on natural compounds targeting epigenetic mechanisms.
• Analysis of nutrients involved in one-carbon metabolism and their effect on S-adenosyl-L-methionine and S-adenosyl-L-homocysteine levels.
• Examination of how specific compounds (e.g., vitamin D, resveratrol) influence histone modifications and micro-RNAs.

Main Results:

• Certain nutrients (folate, riboflavin, etc.) regulate DNA methylation by affecting methyl group donors and inhibitors.
• Natural compounds like vitamin D and resveratrol can target histone modifications and non-coding RNA regulation.
• Epigenetic abnormalities are implicated in various health conditions, including cancer.

Conclusions:

• Natural compounds modulating the epigenome offer a promising strategy for cancer prevention.
• Dietary bioactive compounds can influence epigenetic processes, suggesting potential applications in anti-cancer therapy.
• Targeting epigenetic mechanisms with natural compounds represents a novel approach in oncology.