Immuno-potentiating effects of Astragalus polysaccharides: A mini-literature review

Objective: Astragalus polysaccharides (APS) is a promising therapeutic agent because of its long history in ethnopharmacology, extensive research, wide application, and few side effects. Among its diversified properties, APS has been widely investigated for its immuno-potentiating effects such as stimulating T- and B-cell proliferation, regulating the expression of cytokines, activating macrophages, inducing the expression of surface antigens on lymphocytes, and promoting the production of antibodies. Data Sources: In this article, we review the research progress of APS focusing on its immuno-potentiating effects. Results: Based on the existing studies, APS appears to be a promising adjuvant to anticancer therapy, vaccines, antibiotics, and antiviral therapy. The information provided in this mini-review will provide a useful quick reference for its rational clinical utilization and in planning further research. Further studies are needed to evaluate its dose optimization, mechanism of action, and therapeutic combination strategies. Conclusion: APS may be another successful example of the standardization and modernization of Traditional Chinese herbal medicine.