Chicken embryo extracts enhance spleen lymphocyte and peritoneal macrophages function

Area of Science:

• Immunology
• Pharmacology
• Traditional Chinese Medicine

Background:

• Chicken embryo eggs are traditionally recognized in East Asia for immune-boosting properties.
• Historical texts like the Compendium of Materia Medica document their benefits for appetite and immunity, particularly for vulnerable groups.

Purpose of the Study:

• To investigate the immunomodulatory efficacy of chicken embryo extracts.
• To preliminarily explore the underlying mechanisms and active components responsible for these effects.

Main Methods:

• Chicken embryo extract was digested and fractionated into water-soluble (WS) and lipid-soluble (LS) components.
• In vitro assays assessed the effects of WS and LS on spleen lymphocyte proliferation, IL-2 secretion, macrophage phagocytosis, and nitric oxide (NO) production in immunosuppressed mouse models.
• Total protein, polysaccharide, and fatty acid content were quantified.

Main Results:

• The lipid-soluble fraction (LS) significantly increased spleen lymphocyte proliferation and IL-2 secretion.
• The water-soluble fraction (WS) notably enhanced peritoneal macrophage phagocytosis and NO production.
• Both fractions demonstrated a dose-dependent immunomodulatory effect.

Conclusions:

• Chicken embryo extracts act as effective immunopotentiators in immunosuppressed mice.
• The distinct bioactivities of the WS and LS fractions warrant further investigation to identify specific bioactive compounds.
• These findings support the use of chicken embryo eggs as a valuable immunostimulatory tonic.