Plant-Derived Nutraceuticals and Immune System Modulation: An Evidence-Based Overview

Area of Science:

• Immunology
• Pharmacology
• Nutraceutical Science

Background:

• Immunomodulators and immunoadjuvants can enhance immune responses or suppress abnormal immune activity.
• Modulating inflammatory pathways and the microbiome also influences immune function.
• Plant-based nutraceuticals offer potential immunomodulatory effects with better tolerability than pharmaceuticals.

Purpose of the Study:

• To review current knowledge on the immunomodulating properties of plant-derived polysaccharides, fatty acids, and labdane diterpenes.
• To assess the scientific and clinical evidence supporting their use in immune system modulation.
• To identify research gaps and future directions for plant-based immunomodulatory agents.

Main Methods:

• Comprehensive literature review of preclinical and clinical studies.
• Analysis of immunomodulating properties of specific plant compounds: polysaccharides, fatty acids, and labdane diterpenes.
• Evaluation of evidence for health promotion and disease prevention.

Main Results:

• Preclinical studies show promising immunomodulatory effects of these plant compounds.
• Clinical trial results are limited and often conflicting, suggesting issues with study quality and standardization.
• Polysaccharides, fatty acids, and labdane diterpenes demonstrate pleiotropic effects on the immune system.

Conclusions:

• Plant-derived nutraceuticals hold potential as immunomodulators and adjuvants.
• Further high-quality, standardized clinical research is essential to validate their efficacy and safety.
• These compounds may offer a valuable strategy for immune support, health promotion, and disease prevention.