Dehydrocorydaline Accounts the Majority of Anti-Inflammatory Property of Corydalis Rhizoma in Cultured Macrophage

Corydalis Rhizoma (CR) is a commonly used traditional Chinese medicine for its potency in activating blood circulation and analgesia. In clinic, CR extracts or components are commonly used in the treatment of myocardial ischemia, rheumatism, and dysmenorrhea with different types of inflammation. How...

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Bibliographic Details
Published in:Evidence-based complementary and alternative medicine 2020, Vol.2020 (2020), p.1-13
Main Authors: Tsim, Karl W. K., Pi, Rongbiao, Hu, Winnie W. H., Wang, Cheng, Ren, Haiqin, Liu, Etta Y. L., Xia, Yingjie, Chen, Zhicong, Kong, Xiangpeng, Dong, Tina T. X.
Format: Article
Language:English
Subjects:
Alkaloids
Analgesia
Analgesics
Anti-inflammatory agents
Biotechnology
Blood circulation
Chinese medicine
Corydalis
Cytokines
Herbal medicine
Inflammation
Interleukin 6
Ischemia
Life sciences
Lipopolysaccharides
Macrophages
Myocardial ischemia
NF-κB protein
Nuclear transport
Pain
Pain perception
Proteins
Traditional Chinese medicine
Transcription activation
Tumor necrosis factor-α
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Summary:Corydalis Rhizoma (CR) is a commonly used traditional Chinese medicine for its potency in activating blood circulation and analgesia. In clinic, CR extracts or components are commonly used in the treatment of myocardial ischemia, rheumatism, and dysmenorrhea with different types of inflammation. However, due to different mechanism of pain and inflammation, the anti-inflammatory property of CR has not been fully revealed. Here, the major chromatographic peaks of CR extracts in different extracting solvents were identified, and the anti-inflammatory activities of CR extracts and its major alkaloids were evaluated in LPS-treated macrophages by determining expressions of proinflammatory cytokines, IκBα and NF-κB. The most abundant alkaloid in CR extract was dehydrocorydaline, having >50% of total alkaloids. Besides, the anti-inflammatory activities of dehydrocorydaline and its related analogues were demonstrated. The anti-inflammatory roles were revealed in LPS-treated cultured macrophages, including (i) inhibiting proinflammatory cytokines release, for example, TNF-α, IL-6; (ii) suppressing mRNA expressions of proinflammatory cytokines; (iii) promoting IκBα expression and suppressing activation of NF-κB transcriptional element; and (iv) reducing the nuclear translocation of NF-κB. The results supported that dehydrocorydaline was the major alkaloid in CR extract, which, together with its analogous, accounted the anti-inflammatory property of CR.
ISSN:1741-427X
1741-4288
DOI:10.1155/2020/4181696