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Published in: Inflammation 2/2018

01-03-2018 | ORIGINAL ARTICLE

Protein Disulfide Isomerase Silence Inhibits Inflammatory Functions of Macrophages by Suppressing Reactive Oxygen Species and NF-κB Pathway

Authors: Yinbo Xiao, Chaohong Li, Minghui Gu, Haixing Wang, Weishen Chen, Guotian Luo, Guangpu Yang, Ziji Zhang, Yangchun Zhang, Guoyan Xian, Ziqing Li, Puyi Sheng

Published in: Inflammation | Issue 2/2018

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Abstract

Macrophages play an essential role in inflammation. Protein disulfide isomerase (PDI) is central to the redox system, which is closely linked with the inflammatory function of macrophages. However, the relationship between PDI and inflammation is still unknown. In this study, we tested the effects of PDI on inflammatory responses in RAW 264.7 macrophages stimulated with lipopolysaccharide (LPS). Using CRISPR/Cas9 system, we found that PDI knockout suppressed migration, M1 polarization, and secretion of tumor necrosis factor-α (TNF-α) and interluekin-6 (IL-6). The repression of these inflammatory processes was accompanied by decreased production of reactive oxygen species (ROS). PDI ablation also inactivated the phosphorylation of nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) and activated the phosphorylation of NF-κB inhibitor alpha (IκBα). These findings demonstrate that PDI knockout inhibits the inflammatory function of macrophages by decreasing ROS production and inactivating NF-κB pathway.
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Metadata
Title
Protein Disulfide Isomerase Silence Inhibits Inflammatory Functions of Macrophages by Suppressing Reactive Oxygen Species and NF-κB Pathway
Authors
Yinbo Xiao
Chaohong Li
Minghui Gu
Haixing Wang
Weishen Chen
Guotian Luo
Guangpu Yang
Ziji Zhang
Yangchun Zhang
Guoyan Xian
Ziqing Li
Puyi Sheng
Publication date
01-03-2018
Publisher
Springer US
Published in
Inflammation / Issue 2/2018
Print ISSN: 0360-3997
Electronic ISSN: 1573-2576
DOI
https://doi.org/10.1007/s10753-017-0717-z

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