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Immunomodulatory Activity and Its Mechanisms of Two Polysaccharides from

Overview
Journal Molecules
Publisher MDPI
Specialty Biology
Date 2024 Jan 11
PMID 38202633
Authors
Affiliations
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Abstract

Polyporaceae is an important fungal family that has been a source of natural products with a range of pharmaceutical activities in China. In our previous study, two polysaccharides, PCWPW and PCWPS, with significant antioxidant and antidepressant activity were obtained from . In this study, we evaluated their potential molecular mechanisms in the immunomodulation of macrophages. PCWPW and PCWPS were characterized by GC-MS analysis to contain 1,3-linked Glcp. ELISA assays results demonstrated that the secretion of TNF-α was significantly enhanced by PCWPW/PCWPS. RNA-seq data demonstrated that PCWPS treatment modulated the expression of immune-related genes in macrophages, which was further confirmed by RT-qPCR assays. The activation of TNF-α secretion was found to be mannose receptor (MR) dependent and suppressed by MR inhibitor pretreatment. Moreover, the amount of TNF-α cytokine secretion in PCWPW/PCWPS-induced RAW264.7 cells was decreased when pretreated with NF-κB or MAPK signaling pathway inhibitors. Collectively, our results suggested that PCWPW and PCWPS possessed immunomodulatory activity that regulates TNF-α expression through the NF-κB/MAPK signaling pathway by binding to mannose receptors. Therefore, PCWPW and PCWPS isolated from have potential as drug candidates for immune-related disease treatment.

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References
1.
Zhang W, Chen L, Li P, Zhao J, Duan J . Antidepressant and immunosuppressive activities of two polysaccharides from Poria cocos (Schw.) Wolf. Int J Biol Macromol. 2018; 120(Pt B):1696-1704. DOI: 10.1016/j.ijbiomac.2018.09.171. View

2.
Li K, Cao Y, Jiao S, Du G, Du Y, Qin X . Structural Characterization and Immune Activity Screening of Polysaccharides With Different Molecular Weights From Astragali Radix. Front Pharmacol. 2021; 11:582091. PMC: 7774520. DOI: 10.3389/fphar.2020.582091. View

3.
Du J, Li J, Zhu J, Huang C, Bi S, Song L . Structural characterization and immunomodulatory activity of a novel polysaccharide from Ficus carica. Food Funct. 2018; 9(7):3930-3943. DOI: 10.1039/c8fo00603b. View

4.
Wu Y, Zhou H, Wei K, Zhang T, Che Y, Nguyn A . Structure of a new glycyrrhiza polysaccharide and its immunomodulatory activity. Front Immunol. 2022; 13:1007186. PMC: 9551306. DOI: 10.3389/fimmu.2022.1007186. View

5.
Wu Y, Li D, Wang H, Wan X . Protective Effect of Poria Cocos Polysaccharides on Fecal Peritonitis-Induced Sepsis in Mice Through Inhibition of Oxidative Stress, Inflammation, Apoptosis, and Reduction of Treg Cells. Front Microbiol. 2022; 13:887949. PMC: 9184799. DOI: 10.3389/fmicb.2022.887949. View