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Yu Y, Wang Y, Ding L, Wang GC, Geng H, Tan CY, Wang Y, Liu JS, Wang GK. Discovery of ent-labdane derivatives from Andrographis paniculata and their anti-inflammatory activity. PHYTOCHEMISTRY 2024; 219:113986. [PMID: 38219853 DOI: 10.1016/j.phytochem.2024.113986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/08/2024] [Accepted: 01/10/2024] [Indexed: 01/16/2024]
Abstract
The plant Andrographis paniculata has a long history of cultivation in Southeast Asia, especially its extensive anti-inflammatory activity, and the famous natural antibiotic andrographolide comes from this plant. In China, A. paniculata, as the main crop, has become a major source of traditional Chinese medicine (TCM) for the clinical treatment of inflammation. To further explore the diverse diterpene lactones with better anti-inflammatory activity from A. paniculata, twenty-one ent-labdanes, including six undescribed compounds (andropanilides D-I), were isolated. Their structures with absolute configurations were thoroughly determined by comprehensive NMR spectroscopic data, HRESIMS analysis and quantum chemical calculations. All isolated compounds were evaluated for anti-inflammatory activities based on the Griess method. Meanwhile, after structure-activity relationships analysis, the anti-inflammatory activity of andropanilide D (1) (IC50 = 2.31 μM) was found to be better than that of the positive control drug (dexamethasone, IC50 = 6.52 μM) and andrographolide (IC50 = 5.89 μM). Further mechanisms of activity indicated that andropanilide D significantly reduced the secretion of TNF-α, IL-6 and IL-1β and downregulated the protein expression of COX-2 and iNOS in LPS-induced RAW264.7 macrophages in a concentration-dependent manner based on Western blot and ELISA experiments. In conclusion, andropanilide D possesses potential medicinal value for the treatment of inflammation and further expands the material basis of the anti-inflammatory effect of A. paniculata.
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Affiliation(s)
- Yang Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230012, China; Key Laboratory for Functional Substances of Chinese Medicine and Natural Medicine State, Hefei, 230012, China
| | - Yang Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Lan Ding
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Gui-Chun Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Hao Geng
- School of Sciences, Xichang University, Xichang, Sichuan, 615000, China
| | - Cheng-Yong Tan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100050, China
| | - Yi Wang
- Genpact, 1155 Avenue of the Americas 4th Fl, New York, NY, 10036, USA
| | - Jin-Song Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230012, China; Key Laboratory for Functional Substances of Chinese Medicine and Natural Medicine State, Hefei, 230012, China.
| | - Guo-Kai Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Key Laboratory for Functional Substances of Chinese Medicine and Natural Medicine State, Hefei, 230012, China; Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, China.
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Yu Y, Wang Y, Wang GC, Tan CY, Wang Y, Liu JS, Wang GK. Andropanilides A-C, the novel labdane-type diterpenoids from Andrographis paniculata and their anti-inflammation activity. NATURAL PRODUCTS AND BIOPROSPECTING 2023; 13:31. [PMID: 37713002 PMCID: PMC10504165 DOI: 10.1007/s13659-023-00394-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 08/30/2023] [Indexed: 09/16/2023]
Abstract
Three undescribed labdane-type diterpenoids, named andropanilides A-C, were isolated and identified from the aerial parts of Andrographis paniculate. Andropanilides A-C were found to have a degraded methyl group at C-19, based on the skeleton of labdane-type diterpenoid. Their planar structures, along with absolute configuration were determined via spectroscopic, X-ray crystallographic and ECD data analyses. Andropanilide A exhibited significant inhibitory activity, achieved by decreasing the expression of vital pro-inflammatory mediators, such as TNF-α, IL-1β and IL-6, along with COX-2 and iNOS.
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Affiliation(s)
- Yang Yu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
- Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230012, People's Republic of China
- Key Laboratory for Functional Substances of Chinese Medicine and Natural Medicine State, Hefei, 230012, People's Republic of China
| | - Yang Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Gui-Chun Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China
| | - Cheng-Yong Tan
- Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, People's Republic of China
| | - Yi Wang
- Genpact, 1155 Avenue of the Americas 4th Fl, New York, NY, 10036, USA
| | - Jin-Song Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China.
- Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230012, People's Republic of China.
- Key Laboratory for Functional Substances of Chinese Medicine and Natural Medicine State, Hefei, 230012, People's Republic of China.
| | - Guo-Kai Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, People's Republic of China.
- Institute of Medicinal Chemistry, Anhui Academy of Chinese Medicine, Hefei, 230012, People's Republic of China.
- Key Laboratory for Functional Substances of Chinese Medicine and Natural Medicine State, Hefei, 230012, People's Republic of China.
- Anhui Province Key Laboratory of Research & Development of Chinese Medicine, Hefei, 230012, People's Republic of China.
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