Astragali Radix is a Chinese herbal medicine which is used for both medicine and food. astragalus polysaccharide (APS) is the highest bioactive component. APS has multiple effects

especially in recent years

immune regulation as a research focus. A large number of studies have shown that APS in vivo and in vitro have significant immune regulation

not only on the immunosuppressed animal model has a significant role

but also enhance the immune function of normal animals. At present

the research on APS is mostly confined to its own structure. It is widely used as immune adjuvant and animal feed additive. Its application scope is narrow and lacks deep excavation and scientific research. In recent years

the research of APS immunoregulation has been broadened

and its structure has been modified by different modification methods. The effect mechanism and the dose-effect relationship of various modified products on immune function have been studied. Tumor immunity

anti-virus immunity and immune-related gene regulation and so made a useful exploration. The effects of APS on organ immunity

cellular immunity

cytokines and intracellular messengers

tumor immunity

antiviral immunity

APS immunoreactivity and APS regulation on immune-related genes were summarized. 7 areas of the latest research results. In the future

we should strengthen the separation and purification of low molecular weight APS and APS structure characteristics and immune regulation of the structure-activity relationship and the role of target research

combined with chemical modification of APS regulation of the body's immune mechanism

to enhance its effective intake of the body to enhance the effect of immunity

to strengthen the potential of APS as a human immune adjuvant to promote its clinical application

the application of astragalus polysaccharides from the present to the veterinary animal husbandry and gradually broaden to the medical treatment.