In vivo Anti-Cancer Effects of Resveratrol Mediated by NK Cell Activation

Area of Science:

• Immunology
• Pharmacology
• Oncology

Background:

• Natural killer (NK) cells are crucial innate immune cells for antiviral and antitumor responses.
• NK cell-targeted immunotherapies are under investigation for cancer treatment.
• Identifying natural compounds that activate NK cells is a key research area.

Purpose of the Study:

• To identify food nutrients that activate NK cells.
• To evaluate the anti-cancer and anti-metastatic potential of these nutrients.
• To investigate the synergistic effects of promising compounds with Interleukin-2 (IL-2).

Main Methods:

• Screening of various food nutrients for NK cell activation.
• Assessing NK cell cytotoxicity, IFN-γ secretion, and surface marker expression (CD107a, NKp30, NKG2D).
• In vivo studies using mouse models to evaluate tumor growth and metastasis inhibition.

Main Results:

• Resveratrol demonstrated the most potent NK cell activation among tested nutrients.
• Resveratrol synergized with IL-2 to enhance IFN-γ secretion and NK cell cytotoxicity.
• Resveratrol upregulated key NK cell surface markers and enhanced NK cell activity in whole blood.
• Resveratrol administration significantly inhibited tumor growth and metastasis in mice.

Conclusions:

• Resveratrol effectively activates NK cells, suggesting its potential as an immunomodulatory agent.
• Resveratrol exhibits significant anti-cancer and anti-metastatic properties in preclinical models.
• Resveratrol represents a promising candidate for novel anti-cancer drug development targeting NK cell activation.