KMID : 0624620130460080398
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BMB Reports 2013 Volume.46 No. 8 p.398 ~ p.403
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Floridoside suppresses pro-inflammatory responses by blocking MAPK signaling in activated microglia
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Kim Min-Jeong
Li Yong-Xin Dewapriya Pradeep Ryu Bo-Mi Kim Se-Kwon
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Abstract
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Inflammatory conditions mediated by activated microglia lead to chronic neuro-degenerative diseases such as Alzheimer's, Parkinson's, and Huntington's diseases. This study was conducted to determine the effect of floridoside isolated from marine red algae Laurencia undulata on LPS (100 ng/ml) activated inflammatory responses in BV-2 microglia cells. The results show that floridoside has the ability to suppress pro-inflammatory responses in microglia by markedly inhibiting the production of nitric oxide (NO) and reactive oxygen species (ROS). Moreover, floridoside down-regulated the protein and gene expression levels of iNOS and COX-2 by significantly blocking the phosphorylation of p38 and ERK in BV-2 cells. Collectively, these results indicate that floridoside has the potential to be developed as an active agent for the treatment of neuro-inflammation.
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KEYWORD
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Alzheimer¡¯s disease, Floridoside, Laurencia undulata, Neuro-inflammation, Oxidative stress
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