期刊
JOURNAL OF MEDICINAL FOOD
卷 11, 期 3, 页码 443-453出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/jmf.2007.0530
关键词
antibody plaque-forming cells; antibody production; Cucumaria frondosa; immunostimulant; macrophage lysosomal activity; macrophage phagocytosis; reactive oxygen species; sea cucumber; triterpene glycosides
资金
- Civilian Research and Development Foundation [RB-557-VL-02]
- Russian Academy of Sciences [NSH-725.2003.4]
- FEB Russian Academy of Sciences [05-III-G-05-040]
- NATO [981098]
- RFBR [06-04-96016]
- Maine Technology Institute (Gardiner, ME)
Frondoside A, a major triterpene glycoside from North Atlantic commercially harvested sea cucumber Cucumaria frondosa, possesses strong immunomodulatory properties in subtoxic doses. Frondoside A stimulates lysosomal activity of mouse macrophages in vivo at a maximal effective stimulatory dose of 0.2 mu g per mouse and is maintained over 10 days. This glycoside also shows a 30% stimulation of lysosomal activity in mouse macrophages in vitro at concentrations of 0.1-0.38 mu g/mL. Frondoside A enhances macrophage phagocytosis of the bacterium Staphylococcus aureus in vitro at a maximal effective concentration of 0.001 mu g/mL. Frondoside A stimulates reactive oxygen species formation in macrophages in vitro at a maximal effective concentration of 0.001 mu g/mL. Frondoside A stimulates an increase in the number of antibody plaque-forming cells (normally B-cells in spleen) in vivo with a maximal stimulatory effect at a concentration of 0.2 mu g per mouse (stimulatory index, 1.86). Frondoside A has a weak effect upon immunoglobulin (Ig) M production after immunization with sheep erythrocytes in mice. Frondoside A does not stimulate Ig production in mice and does not significantly enhance the ovalbumin-stimulated IgM and IgG antibody levels in ovalbumin-immunized mice. Hence frondoside A is an immunostimulant of cell-based immunity including phagocytosis without a significant effect on amplification of humoral immune activity or adjuvant properties. Therefore, frondoside A may provide curative and/or preventive treatment options against diseases wherein a depleted immune status contributes to the pathological processes.
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