Anti-Inflammatory Effects of a Mytilus coruscus α-d-Glucan (MP-A) in Activated Macrophage Cells via TLR4/NF-κB/MAPK Pathway Inhibition

Bibliographic Details
Title: Anti-Inflammatory Effects of a Mytilus coruscus α-d-Glucan (MP-A) in Activated Macrophage Cells via TLR4/NF-κB/MAPK Pathway Inhibition
Authors: Fuyan Liu, Xiaofeng Zhang, Yuqiu Li, Qixin Chen, Fei Liu, Xiqiang Zhu, Li Mei, Xinlei Song, Xia Liu, Zhigang Song, Jinhua Zhang, Wen Zhang, Peixue Ling, Fengshan Wang
Source: Marine Drugs, Vol 15, Iss 9, p 294 (2017)
Publisher Information: MDPI AG, 2017.
Publication Year: 2017
Collection: LCC:Biology (General)
Subject Terms: THP-1 macrophages, anti-inflammatory, TLR4, NF-κB, MAPK, SPR analysis, Biology (General), QH301-705.5
More Details: The hard-shelled mussel (Mytilus coruscus) has been used as Chinese traditional medicine for thousands of years; however, to date the ingredients responsible for the various beneficial health outcomes attributed to Mytilus coruscus are still unclear. An α-d-Glucan, called MP-A, was isolated from Mytilus coruscus, and observed to exert anti-inflammatory activity in THP-1 human macrophage cells. Specifically, we showed that MP-A treatment inhibited the production of inflammatory markers, including TNF-α, NO, and PGE2, inducible NOS (iNOS), and cyclooxygenase-2 (COX-2), in LPS-activated THP-1 cells. It was also shown to enhance phagocytosis in the analyzed cells, but to severely inhibit the phosphorylation of mitogen-activated protein kinases (MAPKs) and the nuclear translocation of NF-κB P65. Finally, MP-A was found to exhibit a high binding affinity for the cell surface receptor TLR4, but a low affinity for TLR2 and dectin-1, via surface plasmon resonance (SPR) analysis. The study indicates that MP-A suppresses LPS-induced TNF-α, NO and PEG2 production via TLR4/NF-κB/MAPK pathway inhibition, and suggests that MP-A may be a promising therapeutic candidate for diseases associated with TNF-α, NO, and/or PEG2 overproduction.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1660-3397
Relation: https://www.mdpi.com/1660-3397/15/9/294; https://doaj.org/toc/1660-3397
DOI: 10.3390/md15090294
Access URL: https://doaj.org/article/811c98650da344d3b9771a699dbb689b
Accession Number: edsdoj.811c98650da344d3b9771a699dbb689b
Database: Directory of Open Access Journals
More Details
ISSN:16603397
DOI:10.3390/md15090294
Published in:Marine Drugs
Language:English