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[Studies on the active polysaccharides from Lycium barbarum L]
Yao Xue Xue Bao = Acta Pharmaceutica Sinica
|February 13, 2003
Summary
Four Lycium barbarum polysaccharides were isolated and characterized. Those with alpha-(1-->4)-D-polygalacturonans main chains demonstrated stronger immunomodulation effects on splenocyte proliferation.
Area of Science:
- Phytochemistry
- Immunology
Context:
- Lycium barbarum L. (Goji berry) is a traditional medicinal plant.
- Polysaccharides are known for their diverse biological activities, including immunomodulation.
Purpose:
- To isolate and structurally elucidate four homogeneous polysaccharides (LBP 1a-1, LBP 1a-2, LBP 3a-1, LBP 3a-2) from Lycium barbarum.
- To investigate the immunomodulatory activity of these isolated polysaccharides in vitro.
Summary:
- Four homogeneous polysaccharides were isolated from Lycium barbarum and characterized by molecular weight, sugar composition, and linkages.
- LBP 1a-1 and LBP 1a-2 were identified as alpha-(1-->6)-D-glucans, while LBP 3a-1 and LBP 3a-2 were alpha-(1-->4)-D-polygalacturonans.
- All four polysaccharides enhanced splenocyte proliferation induced by ConA (phytohemagglutinin).
Impact:
- This study provides the first isolation and characterization of these specific polysaccharides from Lycium barbarum.
- Polysaccharides with an alpha-(1-->4)-D-polygalacturonans backbone exhibited superior immunomodulatory activity, suggesting potential therapeutic applications.