The PD-1/PD-Ls pathway is up-regulated during the suppression of experimental autoimmune encephalomyelitis treated by Astragalus polysaccharides
Multiple sclerosis (MS) is an inflammatory demyelinating disease of CNS. Astragalus polysaccharides (APS), the main active extract from astragalus membranaceus which is a kind of traditional Chinese medicinal herb, is associated with a variety of immunomodulatory activities. We have evaluated the therapeutic effects of APS in the animal model of MS, experimental autoimmune encephalomyelitis (EAE). It was found that APS could effectively alleviate EAE through inhibiting MOG35 –55-specific T cell proliferation and reducing the expression of proinflammatory cytokines, which is mediated by up-regulating the expression of PD-1/PD-Ls signaling pathway.
Source: Journal of Neuroimmunology - Category: Allergy & Immunology Authors: Yu Sun, Yuanya Jing, Mengwen Huang, Jinyun Ma, Xiaoyan Peng, Jinying Wang, Guoling Li, Xiaodong Cheng Source Type: research
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