Open Access<p>Pristimerin Inhibits MMP-9 Expression and Cell Migration Through Attenuating NOX/ROS-Dependent NF-κB Activation in Rat Brain Astrocytes Challenged with LPS</p>
Author(s) -
Chien-Chung Yang,
Li-Der Hsiao,
HsienWei Tseng,
Ching-Ming Kuo,
Chih-Hui Yang
Publication year - 2020
Publication title -
journal of inflammation research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.656
H-Index - 33
ISSN - 1178-7031
DOI - 10.2147/jir.s252659
Subject(s) - neuroinflammation , caffeic acid phenethyl ester , apocynin , chemistry , chromatin immunoprecipitation , reactive oxygen species , microbiology and biotechnology , nf κb , signal transduction , inflammation , nadph oxidase , biology , gene expression , biochemistry , immunology , promoter , antioxidant , caffeic acid , gene
Neuroinflammation plays a crucial role in neurodegenerative diseases. Matrix metalloproteinases (MMPs) are a landmark of neuroinflammation. Lipopolysaccharide (LPS) has been demonstrated to induce MMP-9 expression. The mechanisms underlying LPS-induced MMP-9 expression have not been completely elucidated in astrocytes. Nuclear factor-kappaB (NF-κB) is well known as one of the crucial transcription factors in MMP-9 induction. Moreover, reactive oxygen species (ROS) could be an important mediator of neuroinflammation. Here, we differentiated whether ROS and NF-κB contributed to LPS-mediated MMP-9 expression in rat brain astrocytes (RBA-1). Besides, pristimerin has been revealed to possess antioxidant and anti-inflammatory effects. We also evaluated the effects of pristimerin on LPS-induced inflammatory responses.