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Liu JL, Xu HT, Mu DD, Han X, Du TT, Wang YL, Wei XH, Chou GX. C 21 steroids from the roots of Marsdenia tenacissima. Phytochemistry 2023; 213:113782. [PMID: 37451564 DOI: 10.1016/j.phytochem.2023.113782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/25/2023] [Accepted: 06/27/2023] [Indexed: 07/18/2023]
Abstract
A phytochemical investigation of the dichloromethane soluble fraction of the ethanolic extract obtained from the roots of Marsdenia tenacissima led to the discovery of the sixteen undescribed pregnane C21 steroids (1-16) and isolation of eleven known C21 steroidal analogues (17-27). Their chemical structures were elucidated by one- and two-dimensional nuclear magnetic resonance spectroscopy and, high resolution-electrospray ionization mass spectrometry and their absolute configurations were determined using electronic circular dichroism or single-crystal X-ray diffraction. The in vitro anti-proliferative effects of 1-16 were evaluated against HepG2 (human hepatocellular cancer), A549 (lung cancer), and MCF-7 (human breast cancer) cell lines. Even though some of them showed moderate cytotoxic activities, marsectohexol derivative 12 exhibited significant cytotoxicity against A549 cells with an IC50 value of 5.2 μM.
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Affiliation(s)
- Jin-Ling Liu
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Hong-Tao Xu
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, PR China
| | - Dan-Dan Mu
- Xinjiang Uygur Pharmaceutical Co., Ltd, PR China
| | - Xiao Han
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Ting-Ting Du
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Yong-Li Wang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Xiao-Hui Wei
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China.
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, PR China.
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2
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Chen QQ, Fan MH, Xu HT, Huang LY, Liu JL, Zhang SS, Wang RR, Wei XH, Chou GX. Isolation and identification of 3,4-seco-labdane diterpenoids from Callicarpa nudiflora and investigation of their cytotoxicity against HepG2 cells. Phytochemistry 2023:113773. [PMID: 37385362 DOI: 10.1016/j.phytochem.2023.113773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 06/13/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
Twenty-one previously undescribed compounds, including nineteen 3,4-seco-labdanes (nudiflopenes P-W, Y, AI-JI), one 3,4-seco-pimarane (nudiflopene X), and one labdane (nudiflopene Z), along with nine known compounds (one 3,4-seco-pimarane and eight 3,4-seco-labdanes) were isolated from the leaves of Callicarpa nudiflora Hook. Et Arn. The structures of these compounds were elucidated by high-resolution electrospray ionization mass spectrometry and one- and two-dimensional nuclear magnetic resonance spectroscopy. In addition, configurations of the isolated compounds were determined by electronic circular dichroism, DP4+ probability analysis, and single-crystal X-ray diffraction experiments. All undescribed compounds were evaluated for their cytotoxicity against HepG2 cells in vitro, among which compound 12 exhibited a moderate activity with an IC50 value of 27.8 μM.
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Affiliation(s)
- Qian-Qian Chen
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Ming-Hui Fan
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Hong-Tao Xu
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China; Shanghai R&D Center for Standardization of Chinese Medicines, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Le-Yi Huang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Jin-Ling Liu
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Shan-Shan Zhang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Ru-Ru Wang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China
| | - Xiao-Hui Wei
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China.
| | - Gui-Xin Chou
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China; Shanghai R&D Center for Standardization of Chinese Medicines, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, PR China.
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3
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Mao XD, Du TT, Gu Q, Yang L, Shi HL, Hong R, Chou GX. Synthesis and Bioactivity Evaluation of Nepetaefolin F and Its Analogues. ACS Omega 2023; 8:14830-14840. [PMID: 37125132 PMCID: PMC10134463 DOI: 10.1021/acsomega.3c01319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Nepetaefolin F (5), an abietane diterpenoid, showed significant inhibitory activity against human cancer cells in vitro with an IC50 value of 6.3 μM. The syntheses of nepetaefolin F and its analogues are presented herein. The cytotoxicity against various cancer cell lines was evaluated; notably, the cyclopropanecarboxylate ester 42 displayed significant antitumor activity against MGC 803 cells with an IC50 value of 20.9 μM. Further studies revealed that 42 could upregulate the expression of p62, microtubule-associated protein 1 light-chain 3 β (LC3 B-I), cleaved caspase-3, and cleaved caspase-9 and downregulate the expression of Beclin-1 and LC3B-II. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis showed that 42 could modulate multiple signaling pathways, especially for peroxisome proliferator-activated receptor (PPAR) and AMP-activated protein kinase (AMPK), which are closely related to autophagy. These results suggested that compound 42 is a promising lead by inhibiting cell proliferation and autophagy, as inducing cell apoptosis in MGC 803 cells.
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Affiliation(s)
- Xu-Dong Mao
- The
MOE Key Laboratory of Standardization of Chinese Medicines and SATCM
Key Laboratory of New Resources and Quality Evaluation of Chinese
Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine
(SHUTCM), Shanghai 201203, P. R. China
- Shanghai
R&D Center for Standardization of Chinese Medicines, Shanghai 201203, P. R. China
| | - Ting-Ting Du
- The
MOE Key Laboratory of Standardization of Chinese Medicines and SATCM
Key Laboratory of New Resources and Quality Evaluation of Chinese
Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine
(SHUTCM), Shanghai 201203, P. R. China
- Shanghai
R&D Center for Standardization of Chinese Medicines, Shanghai 201203, P. R. China
| | - Qi Gu
- CAS
Key Laboratory of Synthetic Chemistry of Natural Substances, Center
for Excellence in Molecular Synthesis, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Li Yang
- The
MOE Key Laboratory of Standardization of Chinese Medicines and SATCM
Key Laboratory of New Resources and Quality Evaluation of Chinese
Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine
(SHUTCM), Shanghai 201203, P. R. China
| | - Hai-Lian Shi
- The
MOE Key Laboratory of Standardization of Chinese Medicines and SATCM
Key Laboratory of New Resources and Quality Evaluation of Chinese
Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine
(SHUTCM), Shanghai 201203, P. R. China
| | - Ran Hong
- CAS
Key Laboratory of Synthetic Chemistry of Natural Substances, Center
for Excellence in Molecular Synthesis, Shanghai
Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| | - Gui-Xin Chou
- The
MOE Key Laboratory of Standardization of Chinese Medicines and SATCM
Key Laboratory of New Resources and Quality Evaluation of Chinese
Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine
(SHUTCM), Shanghai 201203, P. R. China
- Shanghai
R&D Center for Standardization of Chinese Medicines, Shanghai 201203, P. R. China
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Abstract
A phytochemical investigation on the petroleum ether partition of the whole plant of Pseudocaryopteris paniculata, yield seven new compounds: one phytanes diterpenoid (2Z,6E,10E) 14-keto-2,6,10-trimethyl pentadeca-2,6,10-trien-1-carboxylic acid (1), five clerodane diterpenoids: paniculatins A-E (2, 3a/3b, 4a/4b), one abietane diterpenoid: ent-uncinatone (5), together with 12 known compounds. Their structures were elucidated on the basis of 1D and 2D Nuclear Magnetic Resonance (NMR_, Infrared Radiation (IR), and mass spectroscopic data. Compound 2, 5, and 11 showed weak selective cytotoxic activity of 11 human cancer cell lines.
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Affiliation(s)
- Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, P. R. China.,Guiyang University of Chinese Medicine, Guiyang, P. R. China
| | - Ting Chen
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, P. R. China
| | - Jun-Jie Yang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, P. R. China
| | - Xu-Dong Mao
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, P. R. China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, P. R. China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, P. R. China
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5
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Wu QG, Huang LY, Fan MH, Chou GX, Wang YL. Anti-Inflammatory Activities of Monoterpene and Sesquiterpene Glycosides from the Aqueous Extract of Artemisia annua L. Chem Biodivers 2023; 20:e202201237. [PMID: 36740572 DOI: 10.1002/cbdv.202201237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/07/2023]
Abstract
Artemisia annua L. is a Chinese medicinal herb, but the origin of its pharmacological properties, including its anti-inflammatory activity, remain unknown. In this study, five new monoterpene glycosides (1-5) and two new sesquiterpene glycosides (6 and 7) were isolated from the aqueous extract of the aerial parts of A. annua. The structures of these glycosides were determined using high-resolution electrospray ionization mass spectrometry, nuclear magnetic resonance spectroscopy, electronic circular dichroism calculations, and chemical hydrolysis methods. The anti-inflammatory activities of the isolated compounds were evaluated by down-regulating interleukin-6 (IL-6) in lipopolysaccharide-stimulated RAW 264.7 macrophages. Notably, all the new compounds significantly inhibited the expression of IL-6 in a dose-dependent manner.
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Affiliation(s)
- Qi-Guo Wu
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM) and Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine (SHUTCM), 1200 Cailun Road, Shanghai, 201203, P. R. China
- Department of Pharmacy, Anqing Medical College, 1588 Jixianbei Road, Anqing 246052, P. R. China
| | - Le-Yi Huang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM) and Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine (SHUTCM), 1200 Cailun Road, Shanghai, 201203, P. R. China
| | - Ming-Hui Fan
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM) and Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine (SHUTCM), 1200 Cailun Road, Shanghai, 201203, P. R. China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM) and Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine (SHUTCM), 1200 Cailun Road, Shanghai, 201203, P. R. China
| | - Yong-Li Wang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM) and Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine (SHUTCM), 1200 Cailun Road, Shanghai, 201203, P. R. China
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6
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Amin A, Hossen MJ, Fu XQ, Chou JY, Wu JY, Wang XQ, Chen YJ, Wu Y, Yin CL, Dou XB, Liang C, Chou GX, Yu ZL. Inhibition of the Akt/NF-κB pathway is involved in the anti-gastritis effects of an ethanolic extract of the rhizome of Atractylodes macrocephala. J Ethnopharmacol 2022; 293:115251. [PMID: 35381310 DOI: 10.1016/j.jep.2022.115251] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Gastritis can lead to ulcers and the development of gastric cancer. The rhizome of Atractylodes macrocephala Koidz. (Asteraceae), a traditional Chinese medicinal herb, is prescribed for the treatment of gastric disorders, hepatitis and rheumatism. Its bio-active compounds are considered to be particularly effective in this regard. However, the molecular processes of the herb's anti-inflammatory activity remain obscure. This study elucidates a mechanism upon which an ethanolic extract of this herb (Am-EE) exerts anti-inflammation effects in RAW264.7 macrophage cells (RAW cells) stimulated by lipopolysaccharide (LPS) treatment and HCl Ethanol-stimulated gastritis rats. AIM OF THE STUDY To investigate the anti-gastritis activities of Am-EE and explore the mode of action. MATERIALS AND METHODS Ethanol (95%) was used to prepare Am-EE. The quality of the extract was monitored by HPLC analysis. The in vivo effects of this extract were examined in an HCl Ethanol-stimulated gastritis rat model, while LPS-stimulated RAW cells were used for in vitro assays. Cell viability and nitric oxide (NO) production were observed by MTT and Griess assays. Real-time PCR was used to examine mRNA expression. The PGE2 ELISA kit was employed to detect prostaglandin E2 (PGE2). Enzyme activities and protein contents were examined by immunoblotting. Luciferase reporter gene assays (LRA) were employed to observe nuclear transcription factor (NF)-κB activity. The SPSS (SPSS Inc., Chicago, Illinois, United States) application was used for statistical examination. RESULTS HPLC analysis indicates that Am-EE contains atractylenolide-1 (AT-1, 1.33%, w/w) and atractylenolide-2 (AT-2, 1.25%, w/w) (Additional Figure. A1). Gastric tissue damage (induced by HCl Ethanol) was significantly decreased in SD rats following intra-gastric application of 35 mg/kg Am-EE. Indistinguishable to the anti-inflammation effects of 35 mg/kg ranitidine (gastric medication). Am-EE treatment also reduced LPS-mediated nitric oxide (NO) and prostaglandin E2 (PGE2) production. The mRNA and protein synthesis of inducible cyclooxygenase (COX)-2 and NO synthase (iNOS) was down-regulated following treatment in RAW cells. Am-EE decreased NF-κB (p50) nuclear protein levels and inhibited NF-κB-stimulated LRA activity in RAW cells. Lastly, Am-EE decreased the up-regulated levels of phosphorylated IκBα and Akt proteins in rat stomach lysates and in LPS challenged RAW cell samples. CONCLUSION Our study illustrates that Am-EE suppresses the Akt/IκBα/NF-κB pathway and exerts an anti-inflammatory effect. These novel conclusions provide a pharmacological basis for the clinical use of the A. macrocephala rhizome in the treatment and prevention of gastritis and gastric cancer.
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Affiliation(s)
- Aftab Amin
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Muhammad Jahangir Hossen
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Department of Animal Science, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Xiu-Qiong Fu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ji-Yao Chou
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Jia-Ying Wu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xiao-Qi Wang
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ying-Jie Chen
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ying Wu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Cheng-Le Yin
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xiao-Bing Dou
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
| | - Chun Liang
- Division of Life Science, Center for Cancer Research and State Key Lab of Molecular Neuroscience, Hong Kong University of Science and Technology, Hong Kong, China; EnKang Pharmaceuticals, Limited, Guangzhou, China.
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Research and Development Center for Natural Health Products, HKBU Institute for Research and Continuing Education, Shenzhen, China.
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Zheng XQ, Song LX, Han ZZ, Yang YB, Zhang Y, Gu LH, Yang L, Chou GX, Wang ZT. Pentacyclic triterpenoids from spikes of Prunella vulgaris L. with thyroid tumour cell cytostatic bioactivities. Nat Prod Res 2022; 37:1518-1526. [PMID: 35038938 DOI: 10.1080/14786419.2021.2024532] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Five new triterpenoids, including four ursane types (1-4) and one oleanane type (5), together with 15 known ursane types pentacyclic triterpenoids (6-20) were isolated from the fruit spikes of Prunella vulgaris L., a traditional Chinese herbal medicine. Their structures were elucidated based on IR, HR-ESI-MS, and NMR spectroscopic data. The SW579 cell line was used to evaluate anti-thyroid cancer activities of (1-20). The results indicated that (7-9), (16), and (19) exhibited apparent inhibitory activity with IC50 values of 25.73-71.41 μM (cisplatin as positive control, IC50 14.49 ± 0.97 μM). Network pharmacology and molecular docking were also used for the prediction of the synergistic actions and the underlying mechanisms. Accordingly, four potential targets have been characterized.
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Affiliation(s)
- Xiu-Qin Zheng
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lei-Xin Song
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhu-Zhen Han
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai R&D Center for Standardization of Chinese Medicine, Shanghai, China
| | - Ying-Bo Yang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Zhang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li-Hua Gu
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai R&D Center for Standardization of Chinese Medicine, Shanghai, China
| | - Li Yang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai R&D Center for Standardization of Chinese Medicine, Shanghai, China
| | - Gui-Xin Chou
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai R&D Center for Standardization of Chinese Medicine, Shanghai, China
| | - Zheng-Tao Wang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai R&D Center for Standardization of Chinese Medicine, Shanghai, China
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8
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Tian T, Zhou BW, Wu LH, Zhang F, Chou GX, Feng CG, Lin GQ. Non-targeted screening of pyranosides in Rhodiola crenulata using an all ion fragmentation-exact neutral loss strategy combined with liquid chromatography-quadrupole time-of-flight mass spectrometry. Phytochem Anal 2021; 32:1039-1050. [PMID: 33779008 DOI: 10.1002/pca.3045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 02/08/2021] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Pyranosides as one kind of natural glycosides contain a pyran ring linked to an aglycone in the structure. They occur widely in plants and possess diverse biological activities. The discovery of new pyranosides not only contributes to research on natural products but also may promote pharmaceutical development. OBJECTIVES A non-targeted liquid chromatography-quadrupole time-of-flight mass spectrometry method coupled with an all ion fragmentation-exact neutral loss (AIF-ENL) strategy was developed for the screening of pyranosides in plants. METHODS Pyranosides in various types were collected as a model. The AIF-ENL strategy comprised three steps: AIF spectrum acquisition and generation, ENL-based searching and identification, and confirmation of structural type using target second-stage mass spectrometry (MS/MS). The strategy was systematically evaluated based on the matrix effects, fragmentation stability, scan rate and screening efficiency and finally applied to Rhodiola crenulata (Hook. f. et Thoms) H. Ohba. RESULTS The method was proved to be an efficient tool for the screening of pyranosides. When it was applied to R. crenulata, a total of 24 pyranoside candidates were detected. Among them, six were tentatively identified on the basis of the agreement of their elemental composition with the reported. The other 18 were detected in R. crenulata for the first time. CONCLUSION The method offers a new platform for discovering pyranosides. In addition, the developed non-targeted strategy can also be used for other natural products, such as flavonoids and coumarins, as long as there is a common fragmentation behaviour in their MS/MS to generate characteristic neutral losses or fragments.
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Affiliation(s)
- Tian Tian
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bo-Wen Zhou
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Li-Hong Wu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fang Zhang
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chen-Guo Feng
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
| | - Guo-Qiang Lin
- The Research Centre of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, China
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Hossen MJ, Amin A, Fu XQ, Chou JY, Wu JY, Wang XQ, Chen YJ, Wu Y, Li J, Yin CL, Liang C, Chou GX, Yu ZL. The anti-inflammatory effects of an ethanolic extract of the rhizome of Atractylodes lancea, involves Akt/NF-κB signaling pathway inhibition. J Ethnopharmacol 2021; 277:114183. [PMID: 33991638 DOI: 10.1016/j.jep.2021.114183] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The dried rhizome of Atractylodes lancea (Thumb.) DC. (Compositae) has been prescribed in folk medicine for the management of various inflammatory conditions such as rheumatic diseases, gastritis and hepatitis. However, the molecular mechanisms underlying the beneficial properties of this herb remain elusive. AIM OF THE STUDY In this study, we investigated the anti-gastritis activities of Al-EE (an ethanolic extract of the herb) and explored the mechanism of action. MATERIALS AND METHODS An ethanolic extract of the Atractylodes lancea (Thumb.) DC. (Compositae) rhizome, Al-EE, was prepared with ethanol (95%) and quality controlled using HPLC analysis. To determine the in vivo effects of this extract, we utilised a HCl/EtOH-induced gastritis rat model. In vitro assays were carried out using a lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage cell model. MTT assays were used to examine cell viability, while Griess assays were carried out to measure nitric oxide (NO) production. Messenger RNA expression was examined by real-time PCR. Prostaglandin E2 (PGE2) production was examined using ELISA assays. To examine protein expression and enzymatic activities, we employed western blot analysis. Nuclear transcription factor (NF)-κB activity was determined by Luciferase reporter assays. RESULTS The content of atractylenolide (AT)-1 and AT-2 in Al-EE was 0.45% and 5.07% (w/w), respectively (Supplementary Fig. 1). Al-EE treatment suppressed the production of NO and PGE2, reduced the mRNA expression of inducible NO synthase (iNOS), cyclooxygenase (COX)-2 and tumor necrosis factor (TNF)-α, while also reducing the protein levels of iNOS and COX-2 in RAW264.7 macrophage cells. Furthermore, Al-EE inhibited the nuclear protein levels of NF-κB (p65) and NF-κB-driven luciferase reporter gene activity in RAW264.7 macrophage cells. Critically, intra-gastric injection of Al-EE (25 mg/kg) attenuated HCl/EtOH-induced gastric damage in SD rats, while the phosphorylation of Akt and IκBα was suppressed by Al-EE in vitro and in vivo. CONCLUSION In summary, Al-EE has significant anti-gastritis effects in vivo and in vitro, which can be associated with the inhibition of the Akt/IκBα/NF-κB signalling pathway. This mechanistic finding provides a pharmacological basis for the use of the A. lancea rhizome in the clinical treatment of various inflammatory conditions.
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Affiliation(s)
- Muhammad Jahangir Hossen
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Department of Animal Science, Patuakhali Science and Technology University, Dumki, Patuakhali, 8602, Bangladesh.
| | - Aftab Amin
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xiu-Qiong Fu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ji-Yao Chou
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Jia-Ying Wu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xiao-Qi Wang
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ying-Jie Chen
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ying Wu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Junkui Li
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Cheng-Le Yin
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Chun Liang
- Division of Life Science, Center for Cancer Research and State Key Lab of Molecular Neuroscience, Hong Kong University of Science and Technology, Hong Kong, China.
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Research and Development Center for Natural Health Products, HKBU Institute of Research and Continuing Education, Shenzhen, China.
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10
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Guo ML, Xu HT, Yang JJ, Chou GX. Diterpenoid glycosides from the flower of Trollius chinensis Bunge and their nitric oxide inhibitory activities. Bioorg Chem 2021; 116:105312. [PMID: 34482169 DOI: 10.1016/j.bioorg.2021.105312] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 08/04/2021] [Accepted: 08/26/2021] [Indexed: 10/20/2022]
Abstract
Trolliusditerpenosides A-Q (1-17), seventeen new labdane-diterpenoid glycosides, were isolated from the dried flowers of Trollius chinensis Bunge, a plant that has been commonly used as both an anti-inflammatory folk medicine and a healthcare tea for its therapeutic and anti-viral and antibacterial properties. Their structures were corroborated via comprehensive spectroscopic analysis, ECD calculations, and single-crystal X-ray diffraction analysis. Furthermore, the inhibitory activities on lipopolysaccharide (LPS)-induced NO production in RAW 264.7 macrophages of all compounds (1-17) were evaluated in vitro. Compounds 3, 6, 7, and 11 displayed significant inhibitory activities against NO production, with IC50 values ranging from 1.6 ± 0.1 to 14.4 ± 0.2 μM. In addition, compounds 3, 6, 7, and 11 all down-regulated the mRNA expression of iNOS, COX-2, and IL-1β in RAW 264.7 cells mediated by LPS. These findings not only support the chemical context of genus Trollius but also the exploration of new chemical entities with pharmacological significance from this genus.
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Affiliation(s)
- Mei-Li Guo
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Hong-Tao Xu
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Jun-Jie Yang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), PR China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, PR China.
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11
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Zhou YJ, Wang JH, Xu H, Chou GX, Wang ZT. [Bibenzyls from Dendrobium officinale]. Zhongguo Zhong Yao Za Zhi 2021; 46:3853-3858. [PMID: 34472259 DOI: 10.19540/j.cnki.cjcmm.20210517.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Fifteen bibenzyls were isolated and purified from the ethyl acetate extract of the stems of Dendrobium officinale by macroporous resin, MCI, silica gel, Sephadex LH-20, and ODS column chromatographies, as well as preparative thin-layer chromatography and preparative HPLC. The structures of compounds were identified according to the spectra data of ~1H-NMR, ~(13)C-NMR, and MS, and the physical and physiochemical properties: dendrocandin X(1), 3,4'-dihydroxy-4,5-dimethoxybibenzyl(2), 6″-de-O-methyldendrofindlaphenol A(3), 3,4-dihydroxy-4',5-dimethoxybibenzyl(4), dendrosinen B(5), 3,4,4'-trihydroxy-5-methoxybibenzyl(6), 3,3'-dihydroxy-4,5-dimethoxybibenzyl(7), 3,4'-dihydroxy-5-methoxybibenzyl(8), moscatilin(9), gigantol(10), 4,4'-dihydroxy-3,5-dimethoxybibenzyl(11), 3,4',5-trihydroxy-3'-methoxybibenzyl(12), 3-O-methylgigantol(13), dendrocandin U(14), and dendrocandin N(15). Compound 1 was a novel compound. Compound 2 was isolated from Dendrobium species for the first time. Compounds 3-7 were isolated from D. officinale for the first time.
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Affiliation(s)
- Yu-Juan Zhou
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, The State Administration of Traditional Chinese Medicine Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Shanghai R&D Center for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
| | - Jun-Hao Wang
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, The State Administration of Traditional Chinese Medicine Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Shanghai R&D Center for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
| | - Hong Xu
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, The State Administration of Traditional Chinese Medicine Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Shanghai R&D Center for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
| | - Gui-Xin Chou
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, The State Administration of Traditional Chinese Medicine Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Shanghai R&D Center for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
| | - Zheng-Tao Wang
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, The State Administration of Traditional Chinese Medicine Key Laboratory for New Resources and Quality Evaluation of Chinese Medicine, Shanghai R&D Center for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine Shanghai 201203, China
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12
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Xu HT, Chen Y, Zhang CG, Ju ZC, Wang YL, Chou GX. Acylated iridoid glucosides from Pseudocaryopteris paniculata (C.B.Clarke) P.D.Cantino. Phytochemistry 2021; 181:112569. [PMID: 33130374 DOI: 10.1016/j.phytochem.2020.112569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 06/11/2023]
Abstract
Phytochemical investigation of the ethyl acetate fraction of Pseudocaryopteris paniculata C.B.Clarke P.D.Cantino resulted in the identification of 26 undescribed iridoid glucosides (paniculosides A-Z), along with 7 known iridoid glucosides. Their structures were elucidated via two-dimensional nuclear-magnetic-resonance (2D-NMR) spectroscopy, high-resolution electrospray ionization mass spectroscopy (HR-ESI-MS), and chemical-hydrolysis methods. All isolated substances were analyzed for their cytoprotective effects against t-BHP-induced toxicity in HepG2 cells. Among the tested compounds, paniculoside A, paniculoside I, paniculoside T, and paniculoside U exhibited moderate cytoprotective activities with IC50 values in the range of 11.72-34.22 μM against t-BHP-induced toxicity.
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Affiliation(s)
- Hong-Tao Xu
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, People's Republic of China
| | - Yi Chen
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, People's Republic of China
| | - Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, People's Republic of China
| | - Zheng-Cai Ju
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, People's Republic of China
| | - Yong-Li Wang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, People's Republic of China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, People's Republic of China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, People's Republic of China.
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13
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Zhang X, Rui MJ, Xu HT, Chou GX. Lignans, Monoterpenes and γ-Pyrone Derivatives from Patrinia scabiosifolia with Cytotoxic Activity against HCT-116 Cells. Chem Biodivers 2020; 17:e2000397. [PMID: 32743961 DOI: 10.1002/cbdv.202000397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Accepted: 08/01/2020] [Indexed: 11/12/2022]
Abstract
One new dihydrobenzofuran neolignan, patrinianeolignan I, two new monoterpenes, 6,7-dehydrodissectol A and patriniaol A, and a new γ-pyrone derivative, hydroxymaltol 3-O-(6'-O-trans-caffeoyl)-β-D-glucopyranoside, along with fifteen known lignans, eight known monoterpenes, and two known γ-pyrone derivatives, were isolated from the whole plant of Patrinia scabiosifolia. Their structures were elucidated by 1D- and 2D-NMR and HR-ESI-MS analysis. The absolute configuration of patrinianeolignan I was confirmed by circular dichroism (CD) spectrum. All compounds were evaluated in vitro for their cytotoxic activity against HCT-116 cells. The results showed that compounds patriniaol A and eudesmin exhibited moderate cytotoxicity against HCT-116 cells with IC50 values of 42.23 μM and 41.92 μM, respectively.
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Affiliation(s)
- Xuan Zhang
- Institute of Chinese Materia Medica, Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Meng-Jue Rui
- Institute of Chinese Materia Medica, Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Hong-Tao Xu
- Institute of Chinese Materia Medica, Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Shanghai, 201203, P. R. China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, No. 1200 Cai Lun Road, Shanghai, 201203, P. R. China
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14
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Abstract
Seven new (1-7) and 11 known diterpenoids were isolated and identified from Caryopteris aureoglandulosa. These diterpenoids were structurally determined by HRESIMS and NMR spectroscopic analyses, single-crystal X-ray diffraction, and ECD data. Structurally, aureoglandulosin A (1) is a highly oxygenated abietane diterpenoid with an unprecedented 7/6/6/5-ring system. Aureoglandulosins B (2) and C (3) represent naturally occurring new diterpenoids with an unusual 6/6/6/5-ring system. Additionally, the configurations of two known abietane diterpenoids 11 and 12 were determined by X-ray crystallographic data analysis for the first time. A plausible biosynthetic pathway for compounds 1-3 is proposed. The cytotoxicity of all isolates was evaluated, and compounds 1 and 11 exhibited significant cytotoxic activity against some cell lines with IC50 values in the range 1.6-8.2 μM.
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15
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Zhang Y, Zou XL, Wang YL, Gao L, Chou GX. Determining the Levels of Four Phenylethanoid Glycosides and Five Triterpene Acids in Liuwei Dihuang Capsule Using Solid Phase Extraction with HPLC-UV. J Anal Methods Chem 2019; 2019:7609438. [PMID: 31827973 PMCID: PMC6885283 DOI: 10.1155/2019/7609438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 09/13/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
In this study, we used quantitative high-performance liquid chromatography equipped with an ultraviolet detector (HPLC-UV) and solid phase extraction (SPE) to determine the levels of four phenylethanoid glycosides and five triterpene acids in Liuwei Dihuang capsules (LDCs). LDCs were methanol-extracted and purified using a 500 mg/6 mL silica-based C18 SPE cartridge. Two elutions were analyzed on a ChromCore C18 column under two HPLC conditions. To improve the pretreatment clean-up, an array of silica- and polymer-based SPE cartridges were compared. Both wash and elution steps were also optimized to achieve the highest removal of impurities. Under optimal chromatographic conditions, good linearity was achieved for all compounds (correlation coefficient of r ≥ 0.999), with a quantification limit ranging from 0.0076 to 0.418 μg/mL. The method had satisfactory efficiency and reproducibility with recovery rates ranging from 91.6 to 99.3% with a relative standard deviation below 1.5%. Taken together, this demonstrated SPE as a suitable extension of HPLC-UV for the determination of phenylethanoid glycosides and triterpene acids in complex LDCs.
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Affiliation(s)
- Yong Zhang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, China
| | - Xian-Liang Zou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, China
| | - Yong-Li Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, China
| | - Lu Gao
- Xiuzheng Pharmaceutical Group Co., Ltd., Tonghua 134001, China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, China
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Xu HT, Zhang CG, He YQ, Shi SS, Wang YL, Chou GX. Phenylethanoid glycosides from the Schnabelia nepetifolia (Benth.) P.D.Cantino promote the proliferation of osteoblasts. Phytochemistry 2019; 164:111-121. [PMID: 31125861 DOI: 10.1016/j.phytochem.2019.05.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
An investigation of the n-BuOH fraction of Schnabelia nepetifolia (Benth.) P.D.Cantino led to the isolation and identification of 12 undescribed phenylethanoid glycosides (nepetifosides A-L) and one undescribed phenylmethanoid glycoside (nepetifoside M), together with 23 known compounds. The structures of these compounds were determined by spectroscopic analyses including two-dimensional nuclear-magnetic-resonance (2D-NMR) spectroscopy and chemical-hydrolysis methods. Nepetifoside F exhibited strong activity that significantly increased osteoblast proliferation at three concentrations of 0.1, 1, and 10 μM. Moreover, nepetifoside C and nepetifoside D exhibited moderate activities in promoting the proliferation of osteoblasts at medium and high concentrations of 1 μM and 10 μM, respectively.
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Affiliation(s)
- Hong-Tao Xu
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, PR China
| | - Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, PR China
| | - Yu-Qiong He
- School of Pharmacy, Second Military Medical University, Shanghai, 200433, PR China
| | - Song-Shan Shi
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, PR China
| | - Yong-Li Wang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, PR China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM), Shanghai, 201203, PR China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, PR China.
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17
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Hossen MJ, Chou JY, Li SM, Fu XQ, Yin C, Guo H, Amin A, Chou GX, Yu ZL. An ethanol extract of the rhizome of Atractylodes chinensis exerts anti-gastritis activities and inhibits Akt/NF-κB signaling. J Ethnopharmacol 2019; 228:18-25. [PMID: 30218812 DOI: 10.1016/j.jep.2018.09.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 09/06/2018] [Accepted: 09/11/2018] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The rhizome of Atractylodes chinensis (DC.) kodiz (Compositae) has traditionally been used to treat inflammatory disorders such as arthritis and stomach ache, but scanted report has been issued on its anti-inflammatory mechanisms. AIM OF THE STUDY Here, we investigated the anti-gastritis activities and explored the mechanism of action of an ethanolic extract of the herb (Ac-EE). MATERIALS AND METHODS Ac-EE was prepared with 95% ethanol. To determine its in vivo effects, we employed an HCl/EtOH-induced gastritis rat model. We used a lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophage model for in vitro assays. Griess and MTT assays were used to measure nitric oxide (NO) production and cell viability, respectively. We used real-time PCR to determine mRNA levels. To measure prostaglandin E2 (PGE2) production we used a PGE2 EIA kit. To estimate protein levels and enzyme activities, we employed immunoblotting. Luciferase assays were used to examine nuclear transcription factor (NF)-κB activities. RESULTS Intragastric administration of Ac-EE (30 mg/kg) ameliorated HCl/EtOH-induced stomach tissue damages in SD rats. Ac-EE inhibited the levels of NO and PGE2, down regulated mRNA and protein levels of inducible NO synthase (iNOS) and cyclooxygenase (COX)-2. Ac-EE suppressed the nuclear level of NF-κB (p50), and inhibited NF-κB luciferase activity. The Phosphorylation of Akt and IκBα was also inhibited by Ac-EE both in vivo and in vitro. CONCLUSION Ac-EE treatment exerts an anti-gastritis effect in rats. Inhibition of the Akt/IκBα/NF-κB signaling pathway is associated with this effect, providing a pharmacological basis for the clinical application of the rhizome of A. chinensis in the treatment of inflammatory diseases.
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Affiliation(s)
- Muhammad Jahangir Hossen
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Ji-Yao Chou
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Su-Mei Li
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Xiu-Qiong Fu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Chengle Yin
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Hui Guo
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Aftab Amin
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Research and Development Center for Natural Health Products, HKBU Shenzhen Research Institute and Continuing Education, Shenzhen, China.
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Chen T, Kan YJ, Chou GX, Zhang CG. A new highly oxygenated pregnane and two new 5-hydroxymethylfurfural derivatives from the water decoction of Poria cocos. J Asian Nat Prod Res 2018; 20:1101-1107. [PMID: 28990798 DOI: 10.1080/10286020.2017.1383398] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Accepted: 09/18/2017] [Indexed: 06/07/2023]
Abstract
A new highly oxygenated pregnane steroid, pregn-7-ene-2β,3α,15α,20-tetrol (1) and two new 5-hydroxymethylfurfural derivatives, (5-formylfuran-2-yl)methyl 2-hydroxypropanoate (2) and (5-formylfuran-2-yl)methyl 2-(4-hydroxyphenyl)acetate (3), together with four known compounds, were isolated from the water decoction of Poria cocos. Their structures were established on the basis of extensive spectroscopic analysis. Compound 1 showed moderate inhibitory activity and a known compound (3S,6S)-3-[(1R)-1-hydroxyethyl]-6-(phenylmethyl)-2,5-piperazinedione (5) showed weak inhibitory activity against α-glucosidase, respectively.
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Affiliation(s)
- Ting Chen
- a The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
- b Shanghai R&D Center for Standardization of Chinese Medicines , Shanghai 201203 , China
| | - Yong-Jun Kan
- c Institute of Drug Research, Fujian Academy of Chinese Medicine , Fuzhou 350003 , China
| | - Gui-Xin Chou
- a The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
- b Shanghai R&D Center for Standardization of Chinese Medicines , Shanghai 201203 , China
| | - Cheng-Gang Zhang
- a The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica , Shanghai University of Traditional Chinese Medicine , Shanghai 201203 , China
- b Shanghai R&D Center for Standardization of Chinese Medicines , Shanghai 201203 , China
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Zhang CG, Chen T, Mao XD, Zhao SM, Chou GX. Caryopincaolide M, a rearranged abietane diterpenoid with new skeleton and a new iridoid from Caryopteris incana. J Nat Med 2018; 73:210-216. [PMID: 30474771 DOI: 10.1007/s11418-018-1268-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 11/09/2018] [Indexed: 11/27/2022]
Abstract
Caryopincaolide M (1), a new rearranged abietane diterpenoid with an unusual pent-4-enoic acid group on a 6/6/5 tricyclic ring system, and 7-epi-8-dehydroxypatriscabrol (3), a new iridoid, together with 17 known compounds, have been isolated from the whole plant of Caryopteris incana (Thunb.) Miq. Their structures were elucidated on the basis of 1-D and 2-D NMR, IR, and mass spectroscopic data. Compounds 1-5 were evaluated for their inhibitory activities against enzyme α-glucosidase, and the results showed that only 1 has moderate inhibitory activity against enzyme α-glucosidase with IC50 at 528.3 ± 12.37 mg/L.
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Affiliation(s)
- Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, China
- Guiyang University of Chinese Medicine, Guiyang, 550025, China
| | - Ting Chen
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, China
| | - Xu-Dong Mao
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, China
| | - Sen-Miao Zhao
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, China.
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Fu XQ, Chou JY, Li T, Zhu PL, Li JK, Yin CL, Su T, Guo H, Lee KW, Hossen MJ, Chou GX, Yu ZL. The JAK2/STAT3 pathway is involved in the anti-melanoma effects of atractylenolide I. Exp Dermatol 2018; 27:201-204. [DOI: 10.1111/exd.13454] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Xiu-Qiong Fu
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Ji-Yao Chou
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Ting Li
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Pei-Li Zhu
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Jun-Kui Li
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Cheng-Le Yin
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Tao Su
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Hui Guo
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Kin-Wah Lee
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Muhammad Jahangir Hossen
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica; Shanghai University of Traditional Chinese Medicine; Shanghai China
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Hong Kong China
- Research and Development Centre for Natural Health Products; HKBU Shenzhen Research Institute and Continuing Education; Shenzhen China
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21
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Hu XR, Chou GX, Zhang CG. Flavonoids, alkaloids from the seeds of Crotalaria pallida and their cytotoxicity and anti-inflammatory activities. Phytochemistry 2017; 143:64-71. [PMID: 28777979 DOI: 10.1016/j.phytochem.2017.07.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 07/23/2017] [Accepted: 07/26/2017] [Indexed: 05/27/2023]
Abstract
Three flavonoids, cropalliflavones A-C, including two homoisoflavonoids with rare skeletons; three previously undescribed alkaloids, usaramine-N-oxide and cropallins A-B; and sixteen known compounds, were isolated from the seeds of Crotalaria pallida Ait. The absolute configurations of cropalliflavone A and usaramine-N-oxide were established by an ECD calculation and X-ray crystallography, respectively. Additionally, cropalliflavone B showed anti-proliferative activity against the MCF-7 cell line with an IC50 value of 6.77 μM, and cropalliflavone C showed anti-inflammatory activity, with an IC50 value of 16.07 μM.
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Affiliation(s)
- Xiu-Ren Hu
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China; Shanghai R&D Centre for Standardization of Chinese Medicines, Shanghai 201203, People's Republic of China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China; Shanghai R&D Centre for Standardization of Chinese Medicines, Shanghai 201203, People's Republic of China.
| | - Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China; Shanghai R&D Centre for Standardization of Chinese Medicines, Shanghai 201203, People's Republic of China
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22
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Zhang CG, Chou GX, Mao XD, Yang QS, Zhou JL. Nepetaefolins A-J, Cytotoxic Chinane and Abietane Diterpenoids from Caryopteris nepetaefolia. J Nat Prod 2017; 80:1742-1749. [PMID: 28548825 DOI: 10.1021/acs.jnatprod.6b00972] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nepetaefolins A-J (1-10) and seven known compounds were isolated from the whole plant of Caryopteris nepetaefolia. The absolute configurations of 1-3 were determined from single-crystal X-ray diffraction and spectroscopic data. Compounds 6 and 7, with IC50 values of 6.3-9.0 μM, showed higher cytotoxicity than paclitaxel in one non-small-cell lung cancer, patient-derived xenograft (PDX) model when tested using PDX models and the adenosine triphosphate-tumor chemosensitivity assay (ATP-TCA).
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Affiliation(s)
- Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM) , Shanghai 201203, People's Republic of China
- Shanghai R&D Center for Standardization of Chinese Medicines , Shanghai 201203, People's Republic of China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM) , Shanghai 201203, People's Republic of China
- Shanghai R&D Center for Standardization of Chinese Medicines , Shanghai 201203, People's Republic of China
| | - Xu-Dong Mao
- The MOE Key Laboratory of Standardization of Chinese Medicines and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica (ICMM), Shanghai University of Traditional Chinese Medicine (SHUTCM) , Shanghai 201203, People's Republic of China
- Shanghai R&D Center for Standardization of Chinese Medicines , Shanghai 201203, People's Republic of China
| | - Qing-Shan Yang
- College of Pharmacy, Anhui University of Chinese Medicine , Hefei 230012, People's Republic of China
| | - Jian-Li Zhou
- College of Pharmacy, Anhui University of Chinese Medicine , Hefei 230012, People's Republic of China
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23
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Sun QH, Zhang Y, Chou GX. Synthesis and anti-obesity effects in vivo of Crotadihydrofuran C as a novel PPARγ antagonist from Crotalaria albida. Sci Rep 2017; 7:46735. [PMID: 28436456 PMCID: PMC5402262 DOI: 10.1038/srep46735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 03/24/2017] [Indexed: 02/06/2023] Open
Abstract
Crotadihydrofuran C (CC) from the herbs of Crotalaria albida is able to inhibit adipocyte differentiation and lipid accumulation. However, the effects of CC on obesity and metabolic disorders have not yet been elucidated. In our study, the first enantioselective synthesis of the 2-isopropenyl dihydrofuran isoflavone skeleton (CC) is described. The convenient and efficient synthetic protocols developed skilfully solve the problems of the ortho-para directing group and Suzuki coupling reaction using a boronic acid pinacol ester that was more stable and easy to obtain. Furthermore, CC treatment of high-fat diet (HFD)-fed obese mice remarkably reduced their body weight, fat mass, and lipid level as well as improved insulin resistance and non-alcoholic fatty liver disease (NAFLD). A TR-FRET assay showed that CC was specifically bound to PPARγ LBD, which was further confirmed by the molecular docking study. These results suggest that CC could be a useful and potential natural product for treating metabolic diseases, including obesity, hyperlipidemia insulin resistance and NAFLD, without toxic side-effects.
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Affiliation(s)
- Qin-Hu Sun
- The MOE Key Laboratory for Standardization of Chinese Medicines and SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201210, People's Republic of China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, People's Republic of China
| | - Yu Zhang
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Gui-Xin Chou
- The MOE Key Laboratory for Standardization of Chinese Medicines and SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201210, People's Republic of China.,Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, People's Republic of China
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Mao XD, Chou GX, Zhao SM, Zhang CG. New Iridoid Glucosides from Caryopteris incana (Thunb.) Miq. and Their α-Glucosidase Inhibitory Activities. Molecules 2016; 21:E1749. [PMID: 28009847 PMCID: PMC6273012 DOI: 10.3390/molecules21121749] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 12/01/2016] [Accepted: 12/09/2016] [Indexed: 11/17/2022] Open
Abstract
In our continued investigations of the plant Caryopteris incana, five new iridoid glucosides 1-5, including two cis-trans-isomers, 3 and 4, along with six known compounds 6-11, were isolated from the n-butyl alcohol (n-BuOH) soluble fraction of whole dried material of Caryopteris incana. Their structures were established by a combination of spectroscopic techniques, including 1D and 2D NMR and high resolution electrospray ionization mass spectroscopy (HR-ESI-MS). Furthermore, all isolates were evaluated for their yeast α-glucosidase inhibitory effects. Among these compounds, 4-8 and 10 exhibited potent inhibition of α-glucosidase.
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Affiliation(s)
- Xu-Dong Mao
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China.
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China.
| | - Sen-Miao Zhao
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China.
| | - Cheng-Gang Zhang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China.
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China.
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Abstract
Twelve new diterpenes, caryopincaolide A-L (1-4, 11-12, 16-19, 27-28), together with twenty-eight known diterpenes, have been isolated from the whole plant of Caryopteris incana (Thunb.) Miq. Their structures were elucidated on the basis of 1D and 2D NMR, IR, X-ray crystal diffraction and mass spectroscopic data, as well as ECD calculations. All compounds were tested for in vitro dipeptidyl peptidase IV (DPP-IV) inhibitory activity, with compounds 3, 4, 28, 29, and 40 exhibiting DPP-IV inhibitory effects with IC50 values ranging from 54.2 to 228.9 μM. Compounds 1, 3 and 4 also showed potent activity toward the inhibition of the growth of human cancer cells and 1 can induce apoptosis in Hey and A-549 cells.
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Affiliation(s)
- Sen-Miao Zhao
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
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Wang Z, Ma Z, Wang L, Tang C, Hu Z, Chou G, Li W. Active anti-acetylcholinesterase component of secondary metabolites produced by the endophytic fungi of Huperzia serrata. ELECTRON J BIOTECHN 2015. [DOI: 10.1016/j.ejbt.2015.08.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Abstract
Five new diterpenoids, lagoditerpenes A-E (1-3, 5, 6), along with ten known compounds were isolated from the herb of Lagochilus platyacanthus. The absolute structures of 1-4 and 6 were unequivocally elucidated by extensive spectroscopic analyses in association with single-crystal X-ray diffraction, in which compounds 1 and 2 were the epimers at C-13. Furthermore, in in vitro assays, compounds 1, 2 and 6 showed moderate hemostatic activities by shortening the values of activated partial thromboplastin time.
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Affiliation(s)
- Cheng-Gang Zhang
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lu Wang
- Research Center for Health and Nutrition, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ye Lu
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zi Ye
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhu-Zhen Han
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hong Xu
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Gui-Xin Chou
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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Lv Q, Qiao SM, Xia Y, Shi C, Xia YF, Chou GX, Wang ZT, Dai Y, Wei ZF. Norisoboldine ameliorates DSS-induced ulcerative colitis in mice through induction of regulatory T cells in colons. Int Immunopharmacol 2015; 29:787-797. [PMID: 26363976 DOI: 10.1016/j.intimp.2015.08.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 08/26/2015] [Accepted: 08/31/2015] [Indexed: 12/13/2022]
Abstract
Norisoboldine (NOR), the main active constituent of Radix Linderae, was previously demonstrated to ameliorate collagen-induced arthritis in rats through regulating the imbalance of T cells in intestines, which implied its therapeutic potential in inflammatory bowel disease. Here, we investigated the effect of NOR on ulcerative colitis (UC) induced by dextran sulfate sodium (DSS) in mice. Results showed that NOR (20, 40mg/kg) markedly reduced the symptoms of colitis, the levels of IL-1β and TNF-α, and the activation of ERK, p38 MAPK and NF-κB-p65. NOR only slightly decreased the levels of IFN-γ and IL-17A in mouse colons, but it dramatically increased the level of IL-10 at both protein and mRNA grades. Consistently, NOR increased the number of CD4(+)CD25(+)Foxp3(+) Treg cells more obviously than it decreased that of CD4(+)IL-17(+) Th17 cells in mesenteric lymph nodes (MLNs) and colonic lamina proprias (LPs) of colitis mice, and promoted the expression of Foxp3 mRNA in colon tissues. It could facilitate the in vitro differentiation of Treg cells from naive T cells and promote the phosphorylations of Smad2/3 in colon tissues of colitis mice. On the other hand, NOR did not affect the expressions of homing receptors CCR9 and α4β7 in SPs, and homing ligands CCL25 and Madcam-1 in MLNs and colonic LPs, suggesting that the increase of Treg cells in colons by NOR was not due to gut homing. In conclusion, NOR can ameliorate DSS-induced UC in mice, and the mechanisms involve reduction of pro-inflammatory cytokines and selective induction of Treg cells in colons.
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Affiliation(s)
- Qi Lv
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Si-Miao Qiao
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Ying Xia
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Can Shi
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Yu-Feng Xia
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zheng-Tao Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yue Dai
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
| | - Zhi-Feng Wei
- State Key Laboratory of Natural Medicine, Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, China.
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Ye Y, Chao XJ, Wu JF, Cheng BCY, Su T, Fu XQ, Li T, Guo H, Tse AKW, Kwan HY, Du J, Chou GX, Yu ZL. ERK/GSK3β signaling is involved in atractylenolide I-induced apoptosis and cell cycle arrest in melanoma cells. Oncol Rep 2015; 34:1543-8. [PMID: 26151480 DOI: 10.3892/or.2015.4111] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 06/02/2015] [Indexed: 11/05/2022] Open
Abstract
Novel agents need to be developed to overcome the limitations of the current melanoma therapeutics. Atractylenolide I (AT-I) is a sesquiterpene compound isolated from atractylodis macrocephalae rhizoma. Previous findings demonstrated that AT-I exhibited cytotoxic action in melanoma cells. However, the molecular mechanisms of AT‑1's anti-melanoma properties remain to be elucidated. In the present study, the cell cycle-arrest and apoptosis-promoting effects as well as the ERK/GSK3β signaling-related mechanism of action of AT-I were examined. B16 melanoma cells were treated with various concentrations of AT-1 (50, 75 and 100 µM) for 48 or 72 h. Cell cycle and apoptosis were analyzed by flow cytometry. Protein expression levels were detected by western blot analysis. AT-I treatment induced G1 phase arrest, which was accompanied by increased p21 and decreased CDK2 protein expression levels. Apoptosis was observed after AT-I treatment for 72 h, which was accompanied by activated caspase‑3 and ‑8. AT-I treatment significantly decreased phospho-ERK, phospho-GSK3β, c-Jun and increased p53 protein expression levels. Lithium chloride (LiCl, 5 mM), a GSK3β inhibitor, treatment alone did not increase the apoptosis of B16 cells, while pretreatment with LiCl markedly reversed AT-I-induced apoptosis. Additionally, AT-I-induced G1 phase arrest was partially reversed by LiCl pretreatment. In conclusion, ERK/GSK3β signaling was involved in the apoptotic and G1 phase arrest effects of AT-I in melanoma cells.
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Affiliation(s)
- Yan Ye
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Xiao-Juan Chao
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Jin-Feng Wu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Brian Chi-Yan Cheng
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Tao Su
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Xiu-Qiong Fu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Ting Li
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Hui Guo
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Anfernee Kai-Wing Tse
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Hiu-Yee Kwan
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Juan Du
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, P.R. China
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, P.R. China
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Cheng XM, Ma TY, Mu DD, Chou GX, Wang ZT, Wang CH. [Separation and authentication of tilianin and quality standards of semen of Dracocephalum moldavia]. Zhongguo Zhong Yao Za Zhi 2015; 40:1845-1849. [PMID: 26390635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Tilianin was separated and authenticated from the seeds of Dracocephalum moldavia, a Uygur medicine, by chromatographic technique and spectroscopic method. The purity of tilianin is more than 98% determined by HPLC area normalization method. Thin layer chromatography (TLC) method was used to separate tilianin from D. moldavia by mixture of chloroform-methanol (5: 1) as a developing solvent on high performance silicagel precoated plate (SGF254) and using aluminium trichloride as a chromogenic agent for qualitative identification of D. moldavia. To establish a HPLC method for quantitative analysis of D. moldavia, tilianin was used as a Quantitative marker and separated on a C18 (4.6 mm x 250 mm, 5 μm) column with acetonitrile-01% formic acid (25: 75) as the mobile phase and detected at 330 nm. The calibration curve of tilianin displayed ideal linearity over the range of 0.617 2-123.44 μg x mL(-1) with a regression equation of Y = 33.773X - 0.824 8 (r = 1). The average recovery of tilianin was 101.0% with RSD of 3.7%. The RSD values of intra-day and inter-day precision were less than 2%. The content of tilianin in 4 batches of the authenticated semen of D. Moldavia was between 0.016 and 0.187 mg x g(-1). The qualitative and quantitative method established is suitable for the quality evaluation and assessment of semen of D. Moldavia.
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Fu XQ, Chou GX, Kwan HY, Tse AKW, Zhao LH, Yuen TK, Cao HH, Yu H, Chao XJ, Su T, Cheng BCY, Sun XG, Yu ZL. Inhibition of STAT3 signalling contributes to the antimelanoma action of atractylenolide II. Exp Dermatol 2014; 23:855-7. [DOI: 10.1111/exd.12527] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/24/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Xiu-Qiong Fu
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica; Shanghai University of Traditional Chinese Medicine; Shanghai China
| | - Hiu Yee Kwan
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Anfernee Kai-Wing Tse
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Li-Han Zhao
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Tsz-Kin Yuen
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Hui-hui Cao
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Hua Yu
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Xiao-Juan Chao
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Tao Su
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Brian Chi-Yan Cheng
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
| | - Xue-Gang Sun
- College of Traditional Chinese Medicine; Southern Medical University; Guangzhou China
| | - Zhi-Ling Yu
- Center for Cancer and Inflammation Research; School of Chinese Medicine; Hong Kong Baptist University; Kowloon Tong Hong Kong China
- Institute of Integrated Bioinfomedicine & Translational Science; HKBU Shenzhen Research Institute and Continuing Education; Shenzhen China
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Yin GP, Li LC, Zhang QZ, An YW, Zhu JJ, Wang ZM, Chou GX, Wang ZT. iNOS inhibitory activity of sesquiterpenoids and a monoterpenoid from the rhizomes of Curcuma wenyujin. J Nat Prod 2014; 77:2161-2169. [PMID: 25275213 DOI: 10.1021/np400984c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Eleven new sesquiterpenoids, wenyujinins A-K (1-11), and a new monoterpenoid, wenyujinin L (12), were isolated from the rhizomes of Curcuma wenyujin. Their structures and relative configurations were elucidated using 1D and 2D NMR, X-ray crystallographic analysis, and HRESIMS data. The absolute configurations of 1, 2, 3, 4, 6, 8, 9, and 10 were determined by comparison of the experimental and calculated ECD spectra. The absolute configuration of 5 was determined from the ECD data of the [Rh2(OCOCF3)4] complex, whereas those of 7 and 12 were determined from the ECD spectra of the compounds alone. Compounds 7 and 7a strongly inhibited the induction of NO production by LPS, with IC50 values of 7.6 and 8.5 μM, respectively. Compounds 6 and 10 moderately inhibited NO production with IC50 values of 47.7 and 48.6 μM, respectively.
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Affiliation(s)
- Guo-Ping Yin
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences , Beijing 100700, People's Republic of China
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Jiao Y, Chen PH, Xiong AZ, Wang ZT, Tsim KWK, Chou GX, Xu H. Evaluation of hemostatic and anti-inflammatory activities of extracts from different Lagochilus species in experimental animals: comparison of different extractives and sources. Phytother Res 2014; 29:22-9. [PMID: 25175534 DOI: 10.1002/ptr.5216] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 07/10/2014] [Accepted: 07/26/2014] [Indexed: 11/06/2022]
Abstract
Different members of Lagochilus genus have been used in folkloric medicine to treat hemorrhages and inflammation. However, only a few species of them have received scientific attention supporting their efficacy. Here, the hemostatic and antiinflammatory activities of five Lagochilus species were determined and compared by using in vivo assays. The results showed that the extracts of Lagochilus lanatonodus and Lagochilus diacanthophyllus showed better hemostatic activities among five species. The high doses of L. lanatonodus extracts were able to shorten the values of thrombin time, activated partial thromboplastin time and prothrombin time in a rat model. Moreover, the extracts of L. lanatonodus and L. diacanthophyllus showed strong inhibitory effects on the acute phase of inflammation in both xylene-induced ear edema mouse model and carrageenan-induced paw edema rat model. In parallel, the treatment of these extracts modulated the expressions of those inflammatory parameters, that is, nitric oxide, prostaglandin E2 , inducible nitric oxide synthase, malondialdehyde and superoxide dismutase. L. lanatonodus and L. diacanthophyllus showed better hemostatic and antiinflammatory activities in several test models: these results therefore supported the folkloric utilization. L. lanatonodus was found to be the most active Lagochilus species.
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Affiliation(s)
- Ying Jiao
- The Ministry of Education (MOE) Key Laboratory for Standardization of Chinese Medicines, The State Administration of TCM (SATCM) Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai Key Laboratory of Complex Prescription, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, 201203, China
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Zeng RJ, Li Y, Chen JZ, Chou GX, Gao Y, Shao JW, Jia L, Wu SD, Wu SS. A novel UPLC-MS/MS method for sensitive quantitation of boldine in plasma, a potential anti-inflammatory agent: application to a pharmacokinetic study in rats. Biomed Chromatogr 2014; 29:459-64. [DOI: 10.1002/bmc.3297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 05/05/2014] [Accepted: 06/21/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Rong-Jie Zeng
- School of Pharmacy; Fujian University of Traditional Chinese Medicine; Fuzhou 350108 China
| | - Yu Li
- School of Pharmacy; Fujian University of Traditional Chinese Medicine; Fuzhou 350108 China
| | - Jian-Zhong Chen
- School of Pharmacy; Fujian University of Traditional Chinese Medicine; Fuzhou 350108 China
| | - Gui-Xin Chou
- Institute of Chinese Materia Medica; Shanghai University of Traditional Chinese Medicine; Shanghai 201203 China
| | - Yu Gao
- Cancer Metastasis Alert and Prevention Center, College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Jing-Wei Shao
- Cancer Metastasis Alert and Prevention Center, College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Lee Jia
- Cancer Metastasis Alert and Prevention Center, College of Chemistry and Chemical Engineering; Fuzhou University; Fuzhou 350002 China
| | - Sheng-Dong Wu
- School of Pharmacy; Fujian University of Traditional Chinese Medicine; Fuzhou 350108 China
| | - Shui-Sheng Wu
- School of Pharmacy; Fujian University of Traditional Chinese Medicine; Fuzhou 350108 China
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Liu Q, Yang QM, Hu HJ, Yang L, Yang YB, Chou GX, Wang ZT. Bioactive diterpenoids and flavonoids from the aerial parts of Scoparia dulcis. J Nat Prod 2014; 77:1594-1600. [PMID: 24955889 DOI: 10.1021/np500150f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Six new diterpenoids, 4-epi-7α-O-acetylscoparic acid A (1), 7α-hydroxyscopadiol (2), 7α-O-acetyl-8,17β-epoxyscoparic acid A (3), neo-dulcinol (4), dulcinodal-13-one (5), and 4-epi-7α-hydroxydulcinodal-13-one (6), and a new flavonoid, dillenetin 3-O-(6″-O-p-coumaroyl)-β-D-glucopyranoside (10), along with 12 known compounds, were isolated from the aerial parts of Scoparia dulcis. The 7S absolute configuration of the new diterpenoids 1-4 and 6 was deduced by comparing their NOESY spectra with that of a known compound, (7S)-4-epi-7-hydroxyscoparic acid A (7), which was determined by the modified Mosher's method. The flavonoids scutellarein (11), hispidulin (12), apigenin (15), and luteolin (16) and the terpenoids 4-epi-scopadulcic acid B (9) and betulinic acid (19) showed more potent α-glucosidase inhibitory effects (with IC50 values in the range 13.7-132.5 μM) than the positive control, acarbose. In addition, compounds 1, 11, 12, 15, 16, and acerosin (17) exhibited peroxisome proliferator-activated receptor gamma (PPAR-γ) agonistic activity, with EC50 values ranging from 0.9 to 24.9 μM.
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Affiliation(s)
- Qing Liu
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai 201210, People's Republic of China
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Liu Q, Hu HJ, Li PF, Yang YB, Wu LH, Chou GX, Wang ZT. Diterpenoids and phenylethanoid glycosides from the roots of Clerodendrum bungei and their inhibitory effects against angiotensin converting enzyme and α-glucosidase. Phytochemistry 2014; 103:196-202. [PMID: 24726372 DOI: 10.1016/j.phytochem.2014.02.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 02/13/2014] [Accepted: 02/18/2014] [Indexed: 06/03/2023]
Abstract
Abietane derivatives, bungnates A, B, 15-dehydrocyrtophyllone A and 15-dehydro-17-hydroxycyrtophyllone A, and two phenylethanoid glycosides, bunginoside A and 3″,4″-di-O-acetylmartynoside, together with nine known abietane derivatives and fourteen known phenylethanoid glycosides, were isolated from dried roots of Clerodendrum bungei. Their structures were determined on the basis of detailed spectroscopic analyses and acidic hydrolysis. The absolute configuration of bunginoside A was established from analysis of CD data. Selected compounds were evaluated for inhibitory effects against angiotensin converting enzyme (ACE) and α-glucosidase. 15-Dehydrocyrtophyllone A showed an ACE inhibitory effect, and verbascoside, leucosceptoside A and isoacteoside exhibited strong inhibitory capacity against α-glucosidase.
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Affiliation(s)
- Qing Liu
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China
| | - Hai-Jun Hu
- Department of Pharmacognosy, China Pharmaceutical University, Nanjing 210009, China
| | - Peng-Fei Li
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China
| | - Ying-Bo Yang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China
| | - Li-Hong Wu
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China
| | - Gui-Xin Chou
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China
| | - Zheng-Tao Wang
- The MOE Key Laboratory of Standardization of Chinese Medicines, and SATCM Key Laboratory of New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, China; Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai 201203, China.
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Affiliation(s)
- Zan-Shan Xu
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, P.R. China
- Shanghai R&D Center for Standardization of Chinese Medicines, Guo Shoujin Road 199, Zhangjiang, Shanghai 201203, P.R. China
| | - Gui-Xin Chou
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, P.R. China
- Shanghai R&D Center for Standardization of Chinese Medicines, Guo Shoujin Road 199, Zhangjiang, Shanghai 201203, P.R. China
| | - Zheng-Tao Wang
- Key Laboratory of Standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, P.R. China
- Shanghai R&D Center for Standardization of Chinese Medicines, Guo Shoujin Road 199, Zhangjiang, Shanghai 201203, P.R. China
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Wang JH, Wang ZT, Wang LL, Wang ZJ, Ma Z, Chou GX, Hu ZB, Li WK. Biotransformation of Neoandrographolide by Endophytic Fungus from Dendrobium officinale Kimura et Migo. ACTA ACUST UNITED AC 2014. [DOI: 10.14233/ajchem.2014.15936] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Liu X, Zhang BF, Yang L, Chou GX, Wang ZT. Four new compounds from Imperata cylindrica. J Nat Med 2013; 68:295-301. [DOI: 10.1007/s11418-013-0793-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2013] [Accepted: 07/04/2013] [Indexed: 11/30/2022]
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Tsang TF, Ye Y, Tai WCS, Chou GX, Leung AKM, Yu ZL, Hsiao WLW. Inhibition of the p38 and PKA signaling pathways is associated with the anti-melanogenic activity of Qian-wang-hong-bai-san, a Chinese herbal formula, in B16 cells. J Ethnopharmacol 2012; 141:622-628. [PMID: 21903156 DOI: 10.1016/j.jep.2011.08.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 08/14/2011] [Accepted: 08/21/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Qian-wang-hong-bai-san (QW), a Chinese herbal formula, is traditionally used as a skin whitening agent in China. AIM OF STUDY In our previous screening assays, QW was identified as an effective tyrosinase inhibitor. In this study, we aim to investigate the underlying mechanism of the anti-melanogenic effect of QW in B16 cells. MATERIALS AND METHODS Cytotoxicity of QW in B16 cell line was examined by MTT assay. Cellular tyrosinase activity was determined based on the melanin content measured at 475 nm with a microplate spectrophotometer. Protein expression was analyzed by Western blotting and quantified by Quantity One. RESULTS QW dose-dependently inhibited tyrosinase activity and decreased melanin content at 48 h without significant cytotoxicity in B16 cells. Western blot analysis showed that QW treatment down-regulated the expression levels of phospho-p38, phospho-CREB, MITF, tyrosinase, TRP-1 and TRP-2 in a dose-dependent manner. At the same time, QW treatment for 48 h inhibited IBMX-induced elevation of cellular melanin content and tyrosinase activity. However, the attenuation of IBMX-mediated up-regulations of phospho-CREB and phospho-PKA was readily observed with 60 min of QW treatment. CONCLUSIONS The anti-melanogenic activity of QW in B16 melanoma cells can be attributed, at least in part, to the inhibition of the p38 MAPK and PKA signaling pathways. These findings shed new light on the molecular mechanisms of the skin-whitening property of QW.
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Affiliation(s)
- Ting-Fung Tsang
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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Xu C, Chou GX, Wang CH, Wang ZT. Rare noriridoids from the roots of Andrographis paniculata. Phytochemistry 2012; 77:275-279. [PMID: 22342031 DOI: 10.1016/j.phytochem.2011.12.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Revised: 10/06/2011] [Accepted: 12/28/2011] [Indexed: 05/31/2023]
Abstract
The rare noriridoids, Andrographidoids A-E (1-5), along with a known iridoid curvifloruside F (6), were isolated from roots of Andrographis paniculata. All noriridoids were aglycones and 1-4 had (semi-) acetal structures located at C-3 but not at C-1. Their structures were established by a series of 1D and 2D NMR analyses. The antibacterial activity of these iridoids was also assessed using the microtitre plate broth dilution method.
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Affiliation(s)
- Chong Xu
- The MOE Key Laboratory for Standardization of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201210, PR China
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Chen JZ, Chou GX, Yang L, Bligh SWA, Wang ZT. QUANTIFICATION OF NORISOBOLDINE IN LINDERAE RADIX BY ULTRA-PERFORMANCE LIQUID CHROMATOGRAPHY AND HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY WITH UV DETECTION. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.608236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jian-Zhong Chen
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
- b School of Pharmacy, Fujian University of Traditional Chinese Medicine , Fuzhou , China
| | - Gui-Xin Chou
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
- c Shanghai R & D Centre for Standardization of Chinese Medicines , Shanghai , China
| | - Li Yang
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
| | - S. W. Annie Bligh
- d Institute for Health Research and Policy, London Metropolitan University , London , UK
| | - Zheng-Tao Wang
- a The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine , Shanghai , China
- c Shanghai R & D Centre for Standardization of Chinese Medicines , Shanghai , China
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Abstract
To investigate the chemical constituents of Psidium guajava L, the EtOH/H(2)O extract of the fresh leaves was subjected to various chromatography. One diphenylmethane, one benzophenone, and eight flavonoids were isolated and elucidated as 2,6-dihydroxy-3-formaldehyde-5-methyl-4-O-(6″-O-galloyl-β-D-glucopyranosyl)-diphenylmethane (1), 2,6-dihydroxy-3,5-dimethyl-4-O-(6″-O-galloyl-β-D-glucopyranosyl)-benzophenone (2), kaempferol (3), quercetin (4), quercitrin (5), isoquercitrin (6), guaijaverin (7), avicularin (8), hyperoside (9), reynoutrin (10) by spectroscopic methods, including 1D and 2D NMR and HR-ESI-MS spectrometry as well as by comparison with published data. Compounds 5 and 10 are obtained from P. guajava for the first time, and compound 1 is a new diphenylmethane compound.
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Affiliation(s)
- Ji-Cheng Shu
- MOE Key Laboratory for Standardization of Chinese Medicines and SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, China
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Ye Y, Wang H, Chu JH, Chou GX, Chen SB, Mo H, Fong WF, Yu ZL. Atractylenolide II induces G1 cell-cycle arrest and apoptosis in B16 melanoma cells. J Ethnopharmacol 2011; 136:279-282. [PMID: 21524699 DOI: 10.1016/j.jep.2011.04.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2010] [Revised: 03/03/2011] [Accepted: 04/11/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Atractylenolide II (AT-II) is a sesquiterpene compound isolated from the dried rhizome of Atractylodes macrocephala (Baizhu in Chinese), which is traditionally prescribed for melanoma treatment by Chinese medicine practitioners. Our previous study showed that AT-II can inhibit B16 cells proliferation. Here we investigate the mechanistic basis for the anti-proliferative activity of AT-II in B16 melanoma cells. MATERIALS AND METHODS Cell viability was examined by MTT assay. Cell cycle distribution and apoptosis were determined by flow cytometry. Protein expression was determined by Western blotting. RESULTS AT-II treatment for 48 h dose-dependently inhibited cell proliferation with an IC(50) of 82.3 μM, and induced G1 phase cell cycle arrest. Moreover, treatment with 75 μM AT-II induced apoptosis. These observations were associated with the decrease of the expression of Cdk2, phosphorylated-Akt, phosphorylated-ERK and Bcl-2, the increase of the expression of phosphorylated-p38, phosphorylated-p53, p21, p27, and activation of caspases-8, -9 and -3. In addition, a chemical inhibitor of p53, PFTα, significantly decreased AT-II-mediated growth inhibition and apoptosis. CONCLUSIONS We demonstrated that the G1-arresting and apoptotic effects of AT-II in B16 cells involve p38 activation as well as ERK and Akt inactivation, and the cytotoxic/apoptotic effects of AT-II are potentially p53 dependent. These findings provided chemical and pharmacological basis for the traditional application of Baizhu in melanoma treatment.
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Affiliation(s)
- Yan Ye
- Center for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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