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<a href="http://doi.org/10.1038/s41598-019-51614-x" target="_blank" rel="noreferrer noopener">http://doi.org/10.1038/s41598-019-51614-x</a>
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Pages
15087
Issue
1
Volume
9
ISSN
2045-2322
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Title
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Procyanidin A1 Alleviates Inflammatory Response induced by LPS through NF-κB, MAPK, and Nrf2/HO-1 Pathways in RAW264.7 cells
Publisher
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Scientific Reports
Date
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2019
2019-10-21
Creator
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Han Shan; Gao Hongwei; Chen Shaoru; Wang Qinqin; Li Xinxing; Du Li-Jun; Li Jun; Luo Ying-Ying; Li Jun-Xiu; Zhao Li-Chun; Feng Jianfang; Yang Shilin
Description
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Inflammation is a complex physiological process that poses a serious threat to people's health. However, the potential molecular mechanisms of inflammation are still not clear. Moreover, there is lack of effective anti-inflammatory drugs that meet the clinical requirement. Procyanidin A1 (PCA1) is a monomer component isolated from Procyanidin and shows various pharmacological activities. This study further demonstrated the regulatory role of PCA1 on lipopolysaccharide (LPS)-stimulated inflammatory response and oxidative stress in RAW264.7 cells. Our data showed that PCA1 dramatically attenuated the production of pro-inflammatory cytokines such as NO, iNOS, IL-6, and TNF-α in RAW264.7 cells administrated with LPS. PCA1 blocked IκB-α degradation, inhibited IKKα/β and IκBα phosphorylation, and suppressed nuclear translocation of p65 in RAW264.7 cells induced by LPS. PCA1 also suppressed the phosphorylation of JNK1/2, p38, and ERK1/2 in LPS-stimulated RAW264.7 cells. In addition, PCA1 increased the expression of HO-1, reduced the expression of Keap1, and promoted Nrf2 into the nuclear in LPS-stimulated RAW264.7 cells. Cellular thermal shift assay indicated that PCA1 bond to TLR4. Meanwhile, PCA1 inhibited the production of intracellular ROS and alleviated the depletion of mitochondrial membrane potential in vitro. Collectively, our data indicated that PCA1 exhibited a significant anti-inflammatory effect, suggesting that it is a potential agent for the treatment of inflammatory diseases.
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<a href="http://doi.org/10.1038/s41598-019-51614-x" target="_blank" rel="noreferrer noopener">10.1038/s41598-019-51614-x</a>
PMID: 31636354 PMCID: PMC6803657
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Journal Article
2019
Chen Shaoru
Department of Integrative Medical Sciences
Du Li-Jun
Feng Jianfang
Gao Hongwei
Han Shan
Journal Article
Li Jun
Li Jun-Xiu
Li Xinxing
Luo Ying-Ying
NEOMED College of Medicine
November 2019 Update
Scientific reports
Wang Qinqin
Yang Shilin
Zhao Li-Chun