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Yu ZW, Cai BP, Xie SZ, Zhang Y, Wang WH, Liu SZ, Bin YL, Chen Q, Fang MJ, Qi R, Li MY, Qiu YK. Compounds from Agathis dammara exert hypoglycaemic activity by enhancing glucose uptake: lignans, terpenes and others. Nat Prod Bioprospect 2024; 14:23. [PMID: 38517590 PMCID: PMC10959857 DOI: 10.1007/s13659-024-00440-4] [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] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 02/07/2024] [Indexed: 03/24/2024]
Abstract
In this study, two new kaurane diterpenes (16, 17), together with 12 lignans (1-12), a triterpene (15), and two other compounds (13, 14) were isolated from the woods of Agathis dammara. The structure of the new compound was determined by HR ESIMS and 1D/2D NMR spectroscopy, and its absolute configuration was determined by electronic circular dichroism (ECD) exciton chirality method. Compounds 5, 11, 14 exhibit significant hypoglycaemic activity in zebrafish, and their mechanism of action is to enhance glucose uptake in zebrafish.
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Affiliation(s)
- Zhe-Wei Yu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
- School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Bang-Ping Cai
- Xiamen Botanical Garden, Xiamen, 361003, Fujian, China
| | - Su-Zhi Xie
- Xiamen Medical College Affiliated Haicang Hospital, Xiamen, 361026, China
| | - Yi Zhang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Wen-Hui Wang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Shun-Zhi Liu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Yan-Lin Bin
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Qi Chen
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Mei-Juan Fang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China
| | - Rong Qi
- School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Ming-Yu Li
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China.
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, China.
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He F, Chen J, Zhao T, Wu Q, Yin N, Wang X, Zhong Y, Guo X, Qiu Y, Li B, Fang M, Wu Z. Design, synthesis, and evaluation of novel benzoylhydrazone derivatives as Nur77 modulators with potent antitumor activity against hepatocellular carcinoma. J Enzyme Inhib Med Chem 2023; 38:2227777. [PMID: 37357764 DOI: 10.1080/14756366.2023.2227777] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023] Open
Abstract
Nur77 modulators have emerged as a promising therapeutic approach for hepatocellular carcinoma. In this study, a structure-based rational drug design approach was used to design and synthesise a series of 4-((8-hydroxy-2-methylquinolin-4-yl)amino)benzoylhydrazone derivatives based on the binding characteristics of our previously reported 10g and the native ligand 3NB at the binding Site C of Nur77. Cell-based cytotoxicity assays revealed that compound TMHA37 demonstrated the highest cytotoxicity against all tested cancer cells. The induced fit docking and binding pose metadynamics simulation suggested that TMHA37 was the most promising Nur77 binder at Site C. Molecular dynamics simulation validated the stable binding of TMHA37 to Nur77's Site C but not to Sites A or B. Specifically, TMHA37 bound strongly to Nur77-LBD (KD = 445.3 nM) and could activate Nur77's transcriptional activity. Furthermore, TMHA37 exhibited antitumor effects by blocking the cell cycle at G2/M phase and inducing cell apoptosis in a Nur77-dependent manner.
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Affiliation(s)
- Fengming He
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Jun Chen
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Taige Zhao
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Qiaoqiong Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Na Yin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, P.R. China
| | - Xiumei Wang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Yijing Zhong
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Xiaodan Guo
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - YingKun Qiu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Baicun Li
- Center of Respiratory Medicine, China-Japan Friendship Hospital, National Center for Respiratory Medicine, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, National Clinical Research Center for Respiratory Diseases, Beijing, P.R. China
| | - Meijuan Fang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Zhen Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
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Bin YL, Liu SZ, Xie TT, Feng WZ, Li HY, Ye ZJ, Dong ZH, Qiu YK. Three new compounds from Anoectochilus roxburghii (Wall.) Lindl. Nat Prod Res 2023; 37:3276-3282. [PMID: 35491685 DOI: 10.1080/14786419.2022.2070746] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 09/21/2021] [Revised: 04/16/2022] [Accepted: 04/22/2022] [Indexed: 10/18/2022]
Abstract
In this study, three new compounds, roxburic acid A (1) and two flavone glycosides isorhamnetin-3-O-α-L-rhamnosyl-(1→6)-β-D-glucopyranose-(1→3)-β-D-glucopyranoside (2), and kaempferol-7-O-β-D-glucopyranosyl-(1→3)-β-D-glucopyranoside (3) were isolated from an ethanol extract of the fresh Anoectochilus roxburghii (Wall.) Lindl., together with 10 known compounds (4-13). The structures of these compounds were comprehensively characterized by HR-ESI-MS, 1H NMR, 13C NMR, and 2 D-NMR. The DPPH free radical scavenging activity of the isolated compounds was evaluated, and the results showed that kaempferol-7-O-β-D-glucopyranosyl- (1→3) -β-D-glucopyranoside (3) and rutin (11) has the potential antioxidant activity with IC50 values of 139 μg/mL and 22.5 μg/mL respectively.
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Affiliation(s)
- Yan-Lin Bin
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Shun-Zhi Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Ting-Ting Xie
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Wen-Zheng Feng
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Hao-Yang Li
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zi-Jia Ye
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhi-Hao Dong
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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Zhu LW, Xie BY, Liu SZ, Wu YH, Zhang GG, Qiu YK. Development of an On-Line Two-dimensional Normal Phase Liquid Chromatography System for Analysis of Weakly Polar Samples. Chromatographia 2023. [DOI: 10.1007/s10337-022-04230-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Hu HF, Wang Z, Tang WL, Fu XM, Kong XJ, Qiu YK, Xi SY. Effects of Sophora flavescens aiton and the absorbed bioactive metabolite matrine individually and in combination with 5-fluorouracil on proliferation and apoptosis of gastric cancer cells in nude mice. Front Pharmacol 2022; 13:1047507. [PMID: 36438804 PMCID: PMC9681822 DOI: 10.3389/fphar.2022.1047507] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 09/18/2022] [Accepted: 10/31/2022] [Indexed: 08/13/2023] Open
Abstract
Background: Sophora flavescens aiton (SFA) and its main bioactive metabolite matrine are widely used in traditional Chinese medicine (TCM) preparations and have achieved good curative effects for the treatment of various tumors. However, the mechanisms underlying SFA and matrine individually and in combination with chemotherapeutic drugs for treatment of gastric cancer (GC) remain unclear. Aim of the study: To elucidate the mechanisms underlying the ability of SFA and matrine individually and in combination with chemotherapeutic drugs to inhibit proliferation and promote apoptosis of human GC cells. Materials and methods: Forty-eight nude mice were randomly divided into six groups that were treated with normal saline (model group), 5-fluorouracil (5-FU), SFA decoction (SFAD), matrine, SFAD+5-FU, or matrine+5-FU. A subcutaneous heterotopic tumor model was established in nude mice by implantation of human GC BGC-823 cells. All mice were treated for 28 days. Bioactive metabolites in SFA were determined by HPLC-MS/MS. The tumor volume, tumor weight, and tumor inhibition rate of mice were documented. Histopathology and ultramicroscopic pathology of tumor tissues were observed. The tumor cell cycle and apoptosis in vivo were detected. Serum levels of PCNA, BAX, Bcl-2, Caspase-9, Caspase-3 and cleaved Caspase-3 were measured. Protein levels of MS4A10, MS4A8, MS4A7, PCNA, BAX, Bcl-2, Caspase-3, and cleaved Caspase-3 were measured in tumor tissues. Results: Both SFAD and matrine inhibited the growth of transplanted GC cells, which was more effective when combined with 5-FU. The tumor inhibition rates of the 5-FU, SFAD, matrine, SFAD+5-FU, and matrine+5-FU groups were 53.85%, 33.96%, 30.44%, 59.74%, and 56.55%, respectively. The body weight of tumor-bearing nude mice was greater in the SFAD group than the normal saline and matrine groups. SFAD+5-FU and matrine+5-FU blocked BGC-823 cells in the G0-G1/S transition, promoted apoptosis, and significantly decreased the content of serum apoptosis-inhibitory proteins (PCNA and Bcl-2) as well as protein expression of MS4A8, MS4A10, Bcl-2, and PCNA in tumor tissues, while increasing serum levels of pro-apoptotic proteins (Caspase-9, Caspase-3 and cleaved-Caspase-3) and protein expression of BAX and cleaved-Caspase-3 in tumor tissues. Conclusion: SFAD and matrine both individually and in combination with 5-FU ameliorated malignancy of transplanted tumors by reducing proliferation and promoting apoptosis of BGC-823 cells. These findings confirm the anti-tumor synergistic effect of TCM and chemotherapeutic drugs.
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Affiliation(s)
- Huan-Fu Hu
- School of Medicine, Yueyang Vocational Technical College, Yueyang, Hunan, China
- Yueyang Key Laboratory of Comprehensive Utilization of Characteristic Chinese Herbal Medicines in Dongting Lake District, Yueyang, Hunan, China
| | - Zheng Wang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Wen-Li Tang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Xue-Ming Fu
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Xiang-Jun Kong
- Department of Pharmacy, Xiang’an Hospital of Xiamen University, Xiamen, Fujian, China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, Fujian, China
| | - Sheng-Yan Xi
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, Fujian, China
- Department of Traditional Chinese Medicine, Xiang’an Hospital of Xiamen University, Xiamen, Fujian, China
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Chen ZR, Guo HW, Liu J, Pan Q, Fu MZ, Qiu YK, Wong NK, Huang YC. Resistance traits and molecular characterization of multidrug-resistant Acinetobacter baumannii isolates from an intensive care unit of a tertiary hospital in Guangdong, southern China. Int Microbiol 2022; 25:471-479. [PMID: 35098390 DOI: 10.1007/s10123-022-00233-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 11/24/2021] [Accepted: 01/11/2022] [Indexed: 02/05/2023]
Abstract
PURPOSE This study aims to characterize antimicrobial resistance (AMR) of all the non-duplicated Acinetobacter baumannii strains isolated from an intensive care unit in a tertiary hospital during the period of January 1 to December 31, 2015. METHODS A. baumannii (n = 95 strains) isolated from patients was subjected to antimicrobial susceptibility test (AST) by Vitek 2 Compact system to determine minimum inhibitory concentrations, followed by genotyping by enterobacterial repetitive intergenic consensus-PCR (ERIC-PCR). Resistance genes of interest were PCR amplified and sequenced. RESULTS All isolates were qualified as MDR, with a resistance rate of > 80% to 8 antimicrobials tested. In terms of beta-lactamase detection, the blaOXA23, blaTEM-1, and armA genes were detected frequently at 92.63%, 9 1.58%, and 88.42%, respectively. The metallo-β-lactamase genes blaIMP and blaVIM were undetected. Aph (3')-I was detected in 82 isolates (86.32%), making it the most prevalent aminoglycoside-modifying enzyme (AMEs) encoding gene. In addition, ant (3″)-I was detected at 30.53%, while 26.32% of the strains harbored an aac (6')-Ib gene. ERIC-PCR typing suggested moderate genetic diversity among the isolates, which might be organized into 10 distinct clusters, with cluster A (n = 86 isolates or 90.53%) being the dominant cluster. CONCLUSIONS All of the A. baumannii strains detected in the ICU were MDR clones exhibiting extremely high resistance to carbapenems and aminoglycosides as monitored throughout the study period. They principally belonged to a single cluster of isolates carrying blaOXA23 and armA co-producing different AMEs genes.
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Affiliation(s)
- Zhuo-Ran Chen
- Microbiology Division, Department of Clinical Laboratory, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Hui-Wu Guo
- Microbiology Division, Department of Clinical Laboratory, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Jun Liu
- Microbiology Division, Department of Clinical Laboratory, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Qing Pan
- College of Life Sciences and Oceanology, Shenzhen Key Laboratory of Microbial Genetic Engineering, Shenzhen University, Shenzhen, 518055, China
| | - Mao-Zhang Fu
- Microbiology Division, Department of Clinical Laboratory, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Ying-Kun Qiu
- Microbiology Division, Department of Clinical Laboratory, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
| | - Nai-Kei Wong
- Department of Infection Diseases, Shenzhen Third People's Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen, 518112, China
| | - Yuan-Chun Huang
- Microbiology Division, Department of Clinical Laboratory, The First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, China
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Liu SZ, Xu GX, He FM, Zhang WB, Wu Z, Li MY, Tang XX, Qiu YK. New Sorbicillinoids with Tea Pathogenic Fungus Inhibitory Effect from Marine-Derived Fungus Hypocrea jecorina H8. Mar Drugs 2022; 20:md20030213. [PMID: 35323512 PMCID: PMC8955853 DOI: 10.3390/md20030213] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/11/2022] [Accepted: 03/12/2022] [Indexed: 02/04/2023] Open
Abstract
Four new dimeric sorbicillinoids (1–3 and 5) and a new monomeric sorbicillinoid (4) as well as six known analogs (6–11) were purified from the fungal strain Hypocrea jecorina H8, which was obtained from mangrove sediment, and showed potent inhibitory activity against the tea pathogenic fungus Pestalotiopsis theae (P. theae). The planar structures of 1–5 were assigned by analyses of their UV, IR, HR-ESI-MS, and NMR spectroscopic data. All the compounds were evaluated for growth inhibition of tea pathogenic fungus P. theae. Compounds 5, 6, 8, 9, and 10 exhibited more potent inhibitory activities compared with the positive control hexaconazole with an ED50 of 24.25 ± 1.57 µg/mL. The ED50 values of compounds 5, 6, 8, 9, and 10 were 9.13 ± 1.25, 2.04 ± 1.24, 18.22 ± 1.29, 1.83 ± 1.37, and 4.68 ± 1.44 µg/mL, respectively. Additionally, the effects of these compounds on zebrafish embryo development were also evaluated. Except for compounds 5 and 8, which imparted toxic effects on zebrafish even at 0.625 μM, the other isolated compounds did not exhibit significant toxicity to zebrafish eggs, embryos, or larvae. Taken together, sorbicillinoid derivatives (6, 9, and 10) from H. jecorina H8 displayed low toxicity and high anti-tea pathogenic fungus potential.
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Affiliation(s)
- Shun-Zhi Liu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China; (S.-Z.L.); (F.-M.H.); (M.-Y.L.)
| | - Guang-Xin Xu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State, Ministry of Natural Resources, Da-Xue Road, Xiamen 361005, China; (G.-X.X.); (Z.W.)
| | - Feng-Ming He
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China; (S.-Z.L.); (F.-M.H.); (M.-Y.L.)
| | - Wei-Bo Zhang
- State Key Laboratory of Marine Life, Ocean University of China, Yu-Shan Road, Qingdao 266100, China;
| | - Zhen Wu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State, Ministry of Natural Resources, Da-Xue Road, Xiamen 361005, China; (G.-X.X.); (Z.W.)
| | - Ming-Yu Li
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China; (S.-Z.L.); (F.-M.H.); (M.-Y.L.)
| | - Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State, Ministry of Natural Resources, Da-Xue Road, Xiamen 361005, China; (G.-X.X.); (Z.W.)
- Correspondence: (X.-X.T.); (Y.-K.Q.); Tel./Fax: +86-592-2189868 (Y.-K.Q.)
| | - Ying-Kun Qiu
- State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China; (S.-Z.L.); (F.-M.H.); (M.-Y.L.)
- Correspondence: (X.-X.T.); (Y.-K.Q.); Tel./Fax: +86-592-2189868 (Y.-K.Q.)
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Xie SZ, Zhai XY, Xi SY, Qiu YK, Zhang YM, Kong XJ, Li YH, Zhu L, Wang Z, Zhang SG, Huang SQ, Lu DW, Wang Z. The Protective Effects of Zornia diphylla (L.) Pers. Against Acute Liver Injury Induced by Carbon Tetrachloride in Mice. Front Pharmacol 2021; 12:764282. [PMID: 34899319 PMCID: PMC8651617 DOI: 10.3389/fphar.2021.764282] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 11/10/2021] [Indexed: 12/31/2022] Open
Abstract
Background:Zornia diphylla (L.) Pers. (ZDP) is a traditional Chinese herbal medicine that has been used for several decades to treat patients with liver diseases. Whether ZDP is best administered as a single agent or adjunctive therapy has yet to be determined as does the mechanism whereby it exerts its effects on antagonizing acute liver injury (ALI). Aim of the study: To investigate the protective effects of ZDP on ALI induced by carbon tetrachloride (CCl4) and the potential underlying mechanisms. Materials and Methods: Sixty adult mice were randomized into six study groups (n = 10/group). Three groups were treated with different concentrations of ZDP (2.5, 1.25, 0.625 g/kg), one with bifendate (0.0075 g/kg) alone (positive control) and one with physiologic saline (normal, negative control). All groups were treated for 14 days. Two hours after the last administration, the normal group received an intraperitoneal injection of peanut oil, and the other five groups received an intraperitoneal injection of an equal dose of CCl4 peanut oil solution. At 24 h, the liver index, histology and serum or tissue levels and/or protein expression of aspartate aminotransferase (AST), alanine aminotransferase (ALT), total bilirubin (TBIL), alkaline phosphatase (ALP), superoxide dismutase (SOD), malondialdehyde (MDA), catalase (CAT), glutathione (GSH), Akt, phosphorylated Akt (p-Akt), nuclear factor kappa B p65 (NF-κB p65), inhibitor of NF-κB α (IκB-α), interleukin-1 β (IL-1β), interleukin-6 (IL-6), tumor necrosis factor α (TNF-α), E-cadherin and vimentin were determined. Results: Compared to the model controls, the degree of inflammatory cell infiltration and hepatocyte injury of liver tissue was relieved in the bifendate and three ZDP groups; liver index in the ZDP (2.5, 1.25 g/kg) groups and serum liver function indices in the ZDP (2.5, 1.25 and 0.625 g/kg) groups were decreased; antioxidants SOD, CAT and GSH in liver tissue were increased but the lipid peroxidation index MDA was decreased; protein expression of inflammatory cytokines Akt, p-Akt, NF-κB p65, IκB-α, IL-1β, IL-6 and TNF-α in the liver was ameliorated, and E-cadherin expression was increased. The results of liver histopathology also showed that ZDP had a significant effect on ALI. Conclusion: ZDP has obvious protective effects on CCl4-induced ALI as a single therapy and appears to act by inhibiting oxidation, reducing the release of inflammatory factors and promoting hepatocyte repair.
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Affiliation(s)
- Su-Zhi Xie
- Department of Pharmacy, Xiamen Haicang Hospital, Xiamen, China
| | - Xiang-Yang Zhai
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Sheng-Yan Xi
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China.,Department of Traditional Chinese Medicine, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yu-Mei Zhang
- Department of Traditional Chinese Medicine, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Xiang-Jun Kong
- Department of Pharmacy, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Yun-Hong Li
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Lin Zhu
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Zheng Wang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Shan-Gang Zhang
- Department of Traditional Chinese Medicine, Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Shu-Qiong Huang
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Da-Wei Lu
- Department of Traditional Chinese Medicine, School of Medicine, Xiamen University, Xiamen, China
| | - Zheng Wang
- Department of Pharmacy, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China
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Liu SZ, Tang XX, He FM, Jia JX, Hu H, Xie BY, Li MY, Qiu YK. Two new compounds from a mangrove sediment-derived fungus Penicillium polonicum H175. Nat Prod Res 2020; 36:2370-2378. [PMID: 33146025 DOI: 10.1080/14786419.2020.1837811] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 10/23/2022]
Abstract
Two new compounds, 6-acetyl-4-methoxy-3,5-dimethyl-2H-pyran-2-one (1) and (2E,4E)-5-((2S,3S,4R,5R)-3,4-dihydroxy-2,4,5-trimethyltetrahydrofuran-2-yl)-2,4-dimethylpenta-2,4-dienal (2), and 22 known compounds were identified from the mangrove-forest-derived fungus Penicillium polonicum H175. The structures of these compounds were elucidated by analysis of the high-resolution electrospray ionisation mass spectroscopy (HR-ESI-MS), 1 D and 2 D nuclear magnetic resonance (NMR) data. The hypoglycaemic effect of compounds was evaluated by the Tg (Ins: htBidTE-ON; LR) zebrafish model. Compound 3 (aspterric acid) exhibited a significant hypoglycaemic effect equivalent to the positive drug rosiglitazone (RSG) at 10 μmol/L.
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Affiliation(s)
- Shun-Zhi Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Feng-Ming He
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Jian-Xin Jia
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Hang Hu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Bao-Ying Xie
- School of Medicine, Xiamen University, Xiamen, China
| | - Ming-Yu Li
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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Liu SZ, He FM, Bin YL, Li CF, Xie BY, Tang XX, Qiu YK. Bioactive compounds derived from the marine-derived fungus MCCC3A00951 and their influenza neuraminidase inhibition activity in vitro and in silico. Nat Prod Res 2020; 35:5621-5628. [PMID: 32927980 DOI: 10.1080/14786419.2020.1817015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 10/23/2022]
Abstract
Penicillium polonicum MCCC3A00951 is a fungus with influenza neuraminidase (NA) inhibition activity derived from a sediment of the mangrove forest of Zhangjiangkou in Fujian province, China. Chemical investigation on an ethyl acetate extract of its fermentation led to the isolation of a new compound, 7-hydroxy-3,10-dehydrocyclopeptine (1), and 13 known compounds (2-14). The new compound was comprehensively characterised by high-resolution electrospray ionisation-mass spectrometry, and 1D, 2D nuclear magnetic resonance (NMR) spectra. The anti-influenza NA assay was performed to evaluate the potential biological activity. Surprisingly, Cyclopenin (2) showed potent influenza NA inhibition with an IC50 value of 5.02 μM. Besides, molecular docking simulation was performed to investigate the binding model of cyclopenin (2) with influenza NA. Consequently, cyclopenin (2) could be further optimised to be a potential anti-influenza NA candidate.
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Affiliation(s)
- Shun-Zhi Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Feng-Ming He
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yan-Lin Bin
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Chu-Fang Li
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Bao-Ying Xie
- Shool of Medicine, Xiamen University, Xiamen, China
| | - Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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11
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Zheng D, Zhang JY, Fu WH, Liu SZ, Xie SZ, Wang Z, Qiu YK. Two new troponoides with anti-inflammatory activity from the stems of Juniperus formosana Hayata. Nat Prod Res 2020; 35:4901-4906. [PMID: 32189528 DOI: 10.1080/14786419.2020.1741584] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Two new troponoides (1-2) were isolated from a 95% ethanol extract of the stems of Juniperus formosana (Cupressaceae), together with six known compounds (3-8). The structures of the new compounds were comprehensively characterized by high resolution electrospray ionization-mass spectrometry (HR-ESI-MS), 1D and 2D nuclear magnetic resonance (NMR). Compounds 1-7 were evaluated for their anti-inflammatory against the expression of IL-1β, IL-6 and TNF-α in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. The new compounds showed moderate anti-inflammatory effect, while other compounds did show no activity.
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Affiliation(s)
- Dong Zheng
- Department of Pharmacy, Xiamen Hospital of Traditional Chinese Medicine, Xiamen, China
| | - Jian-Yu Zhang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Wen-Hao Fu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Shun-Zhi Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Su-Zhi Xie
- Department of Pharmacy, Xiamen Haicang Hospital, Xiamen, China
| | - Zheng Wang
- Department of Pharmacy, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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Tang XX, Liu SZ, Sun YY, He FM, Xu GX, Fang MJ, Zhen W, Qiu YK. New cyclopentenoneacrylic acid derivatives from a marine-derived fungus Trichoderma atroviride H548. Nat Prod Res 2020; 35:3772-3779. [PMID: 32159393 DOI: 10.1080/14786419.2020.1737053] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 02/02/2023]
Abstract
Three new cyclopentenoneacrylic acid derivatives, trichodermacid A (1), trichodermester A (2), and trichodermester B (3), together with thirteen known compounds, were isolated from an ethyl acetate extract of Trichoderma atroviride H548, a fungus derived from mangrove sediment. The structures of the new compounds were elucidated by spectroscopic methods including HR ESI-MS, 1H NMR, 13C NMR, and 2D-NMR techniques. The antifungal activity of the isolated compounds was evaluated against tea pathogenic fungus Pestalotiopsis theae. Trichodermester A (2) showed potent anti P. theae activity with MIC of 125 μg/disc, while the other compounds were inactive.
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Affiliation(s)
- Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Shun-Zhi Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Yu-Ying Sun
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Feng-Ming He
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Guang-Xin Xu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, China
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Wu Zhen
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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Tang XX, Liu SZ, Yan X, Tang BW, Fang MJ, Wang XM, Wu Z, Qiu YK. Two New Cytotoxic Compounds from a Deep-Sea Penicillum citreonigrum XT20-134. Mar Drugs 2019; 17:md17090509. [PMID: 31470583 PMCID: PMC6780507 DOI: 10.3390/md17090509] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 07/28/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 01/03/2023] Open
Abstract
Penicillum citreonigrum XT20-134 (MCCC 3A00956) is a fungus with cytotoxic activity, derived from deep-sea sediment. Five new compounds, adeninylpyrenocine (1), 2-hydroxyl-3-pyrenocine-thio propanoic acid (2), ozazino-cyclo-(2,3-dihydroxyl-trp-tyr) (3), 5,5-dichloro-1-(3,5-dimethoxyphenyl)-1,4-dihydroxypentan-2-one (4), and 2,3,4-trihydroxybutyl cinnamate (5), together with 19 known compounds (6-24), were isolated from an ethyl acetate (EtOAc) extract of its fermentation. The structures of the new compounds were comprehensively characterized by high-resolution electrospray ionization-mass spectrometry (HR-ESI-MS), 1D and 2D nuclear magnetic resonance (NMR). All isolates were evaluated for their cytotoxic activities. The heteroatom-containing new compounds 2 and 4 showed potent cytotoxicity to the human hepatoma tumor cell Bel7402 with IC50 values of 7.63 ± 1.46, 13.14 ± 1.41 μM and the human fibrosarcoma tumor cell HT1080 with IC50 values of 10.22 ± 1.32, 16.53 ± 1.67 μM, respectively.
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Affiliation(s)
- Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, China
| | - Shun-Zhi Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China
| | - Xia Yan
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center, Ningbo University, Ningbo 315832, China
| | - Bo-Wen Tang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China
| | - Xiu-Min Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China
| | - Zhen Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
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Tang XX, Yan X, Fu WH, Yi LQ, Tang BW, Yu LB, Fang MJ, Wu Z, Qiu YK. New β-Lactone with Tea Pathogenic Fungus Inhibitory Effect from Marine-Derived Fungus MCCC3A00957. J Agric Food Chem 2019; 67:2877-2885. [PMID: 30785752 DOI: 10.1021/acs.jafc.9b00228] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fusarium solani H915 (MCCC3A00957), a fungus originating from mangrove sediment, showed potent inhibitory activity against tea pathogenic fungus Pestalotiopsis theae. Successive chromatographic separation on an ethyl acetate (EtOAc) extract of F. solani H915 resulted in the isolation of five new alkenoic diacid derivatives: fusarilactones A-C (1-3), and fusaridioic acids B (4) and C (5), in addition to seven known compounds (6-12). The chemical structures of these metabolites were elucidated on the basis of UV, IR, HR-ESI-MS, and NMR spectroscopic data. The antifungal activity of the isolated compounds was evaluated. Compounds with a β-lactone ring (1, 2, and 7) exhibited potent inhibitory activities, while none of the other compounds show activity. The ED50 values of the compounds 1, 2, and 7 were 38.14 ± 1.67, 42.26 ± 1.96, and 18.35 ± 1.27 μg/mL, respectively. In addition, inhibitory activity of these compounds against 3-hydroxy-3-methylglutaryl-CoA (HMG-CoA) synthase gene expression was also detected using real-time RT-PCR. Results indicated that compounds 1, 2, and 7 may inhibit the growth of P. theae by interfering with the biosynthesis of ergosterol by down-regulating the expression of HMG-CoA synthase.
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Affiliation(s)
- Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources , Third Institute of Oceanography State, Ministry of Natural Resources , Da-Xue Road , Xiamen 361005 , China
| | - Xia Yan
- Li Dak Sum Yip Yio Chin Kenneth Li Marine Biopharmaceutical Research Center , Ningbo University , Ningbo 315832 , China
| | - Wen-Hao Fu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , South Xiang-An Road , Xiamen , 361102 , China
| | - Lu-Qi Yi
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , South Xiang-An Road , Xiamen , 361102 , China
| | - Bo-Wen Tang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , South Xiang-An Road , Xiamen , 361102 , China
| | - Li-Bo Yu
- Key Laboratory of Marine Biogenetic Resources , Third Institute of Oceanography State, Ministry of Natural Resources , Da-Xue Road , Xiamen 361005 , China
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , South Xiang-An Road , Xiamen , 361102 , China
| | - Zhen Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , South Xiang-An Road , Xiamen , 361102 , China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , South Xiang-An Road , Xiamen , 361102 , China
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Yang LH, Ou-Yang H, Yan X, Tang BW, Fang MJ, Wu Z, Chen JW, Qiu YK. Open-Ring Butenolides from a Marine-Derived Anti-Neuroinflammatory Fungus Aspergillus terreus Y10. Mar Drugs 2018; 16:E428. [PMID: 30400195 PMCID: PMC6267272 DOI: 10.3390/md16110428] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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: 10/20/2018] [Revised: 10/27/2018] [Accepted: 10/30/2018] [Indexed: 02/06/2023] Open
Abstract
To investigate structurally novel and anti-neuroinflammatory natural compounds from marine-derived microorganisms, the secondary metabolites of Aspergillus terreus Y10, a fungus separated from the sediment of the coast in the South China Sea, were studied. Three new compounds (2⁻4), with novel open-ring butenolide skeletons, were isolated from the ethyl acetate extract of the culture medium. In addition, a typical new butenolide, asperteretal F (1), was found to dose-dependently inhibit tumor necrosis factor (TNF-α) generation with an IC50 of 7.6 μg/mL. The present study shows the existence of open-ring butenolides, and suggests that butenolides such as asperteretal F (1) are a promising new anti-neuroinflammatroy candidate for neurodegenerative diseases.
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Affiliation(s)
- Long-He Yang
- Engineering Research Center of Marine Biological Resource Comprehensive Utilization, Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China.
| | - Han Ou-Yang
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315832, China.
| | - Xia Yan
- Institute of Drug Discovery Technology, Ningbo University, Ningbo 315832, China.
| | - Bo-Wen Tang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Zhen Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Jing-Wei Chen
- Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China.
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
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16
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Wang YQ, Tang X, Li JF, Wu YL, Sun YY, Fang MJ, Wu Z, Wang XM, Qiu YK. Development of an on-line mixed-mode gel liquid chromatography×reversed phase liquid chromatography method for separation of water extract from Flos Carthami. J Chromatogr A 2017; 1519:145-151. [PMID: 28886939 DOI: 10.1016/j.chroma.2017.08.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 02/17/2017] [Revised: 05/25/2017] [Accepted: 08/20/2017] [Indexed: 02/02/2023]
Abstract
A novel on-line comprehensive two-dimensional liquid chromatography (2D-LC) method by coupling mixed-mode gel liquid chromatography (MMG-LC) with reversed phase liquid chromatography (RPLC) was developed. A mixture of 17 reference compounds was used to study the separation mechanism. A crude water extract of Flos Carthami was applied to evaluate the performance of the novel 2D-LC system. In the first dimension, the extract was eluted with a gradient of water/methanol over a cross-linked dextran gel Sephadex LH-20 column. Meanwhile, the advantages of size exclusion, reversed phase partition and adsorption separation mechanism were exploited before further on-line reversed phase purification on the second dimension. This novel on-line mixed-mode Sephadex LH-20×RPLC method provided higher peak resolution, sample processing ability (2.5mg) and better orthogonality (72.9%) versus RPLC×RPLC and hydrophilic interaction liquid chromatography (HILIC)×RPLC. To the best of our knowledge, this is the first report of a mixed-mode Sephadex LH-20×RPLC separation method with successful applications in on-line mode, which might be beneficial for harvesting targets from complicated medicinal plants.
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Affiliation(s)
- Yu-Qing Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Xu Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, China
| | - Jia-Fu Li
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Yu-Ying Sun
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Zhen Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Xiu-Min Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China.
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China.
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Wang XY, Yan X, Fang MJ, Wu Z, Wang D, Qiu YK. Two new cytochalasan derivatives from Chaetomium globosum SNSHI-5, a fungus derived from extreme environment. Nat Prod Res 2017; 31:1669-1675. [PMID: 28403641 DOI: 10.1080/14786419.2017.1286478] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 10/19/2022]
Abstract
Two new cytochalasan derivatives, isochaetoglobosin Db (1) and cytoglobosin Ab (2), were isolated from an ethyl acetate extract of Chaetomium globosum SNSHI-5, a fungus derived from extreme environment. The structures of the new compounds were comprehensively characterized by HR-ESI-MS, 1H NMR, 13C NMR and 2D-NMR. Cytotoxic activity against H292 human lung cancer cell of the new compounds was tested. Isochaetoglobosin Db (1) showed potent cytotoxicity with IC50 of 3.5 μM, while cytoglobosin Ab was inactive (IC50 > 10 μM).
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Affiliation(s)
- Xiao-Yan Wang
- a School of Pharmacy , Liaoning University of Traditional Chinese Medicine , Shenyang , China
| | - Xia Yan
- b Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , Xiamen , China
| | - Mei-Juan Fang
- b Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , Xiamen , China
| | - Zhen Wu
- b Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , Xiamen , China
| | - Dong Wang
- a School of Pharmacy , Liaoning University of Traditional Chinese Medicine , Shenyang , China.,c China Democratic League , Chinese Shenyang Municipal Committee of Democratic League , Shenyang , China
| | - Ying-Kun Qiu
- b Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences , Xiamen University , Xiamen , China
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18
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Li JF, Yan X, Wu YL, Fang MJ, Wu Z, Qiu YK. Comprehensive two-dimensional normal-phase liquid chromatography × reversed-phase liquid chromatography for analysis of toad skin. Anal Chim Acta 2017; 962:114-120. [PMID: 28231875 DOI: 10.1016/j.aca.2017.01.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 10/29/2016] [Revised: 01/19/2017] [Accepted: 01/22/2017] [Indexed: 12/31/2022]
Abstract
An analytical two-dimensional normal-phase liquid chromatography × reversed-phase liquid chromatography (2D NPLC × RPLC) system was constructed with a newly developed thermal evaporation assisted adsorption (TEAA) interface. This novel TEAA interface with heating temperature above solvent boiling point allowed fast removal of organic NPLC solvent and successfully solved the solvent incompatibility problem between NPLC and RPLC. The system achieved rapid on-line solvent exchange between the two dimensions within a short modulation time of 190 s and was applied in the analysis of an extract from the skin of Bufo bufo gargarizans. This is the first time to realize the on-line comprehensive analysis of a moderate polar natural product by coupling NPLC with reversed phase ultra-high performance liquid chromatography (UHPLC). To be highlighted, with the TEAA interface, the 2D NPLC × RPLC system provided excellent resolution and orthogonality (75.2%), when compared with that of 2D RPLC × RPLC.
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Affiliation(s)
- Jia-Fu Li
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Xia Yan
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Zhen Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China.
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Chen X, Qiu YK, Owh C, Loh XJ, Wu YL. Supramolecular cyclodextrin nanocarriers for chemo- and gene therapy towards the effective treatment of drug resistant cancers. Nanoscale 2016; 8:18876-18881. [PMID: 27819368 DOI: 10.1039/c6nr08055c] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A tumor active targeting β-cyclodextrin based nanocarrier β-NC-OEI-SS-FA was designed by the modification of star shaped cationic derivatives β-NC-OEI with folic acid through a disulfide bond, to co-deliver chemotherapeutic paclitaxel and the Nur77 gene for overcoming Bcl-2 mediated non-pump resistance by an "enemy to friend" strategy for potential drug resistant cancer therapy.
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Affiliation(s)
- Xiaohong Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, 361102, P. R. China.
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20
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Wu YL, Wang H, Qiu YK, Liow SS, Li Z, Loh XJ. PHB-Based Gels as Delivery Agents of Chemotherapeutics for the Effective Shrinkage of Tumors. Adv Healthc Mater 2016; 5:2679-2685. [PMID: 27594657 DOI: 10.1002/adhm.201600723] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [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: 07/06/2016] [Revised: 07/20/2016] [Indexed: 12/13/2022]
Abstract
Injectable thermogel to deliver chemotherapeutics in a minimally invasive manner and to achieve their long term sustained release at tumor sites to minimize side effects is attractive for chemotherapy and precision medicine, but its rational design remains a challenge. In this work, a copolymer with natural biodegradable poly[(R)-3-hydroxybutyrate] (PHB), hydrophilic poly(ethylene glycol), and temperature sensitive poly(propylene glycol) blocks linked by urethane linkages is designed to show thermogelling characteristics which are beneficial for minimally invasive injection and safe degradation. This thermogelling polymer possesses in vitro biocompatibility with very low cyto-toxicity in HEK293 cells. Furthermore, it is able to form the gel to achieve the controllable release of paclitaxel (PTX) and doxorubicin (DOX) by adjusting polymer concentrations. A rodent model of hepatocarcinoma has been performed to demonstrate the in vivo applications of this PHB-based thermogel. The drug-loaded thermogel has been intratumorally injected and both PTX-loaded and DOX-loaded thermogel have significantly slowed down tumor growth. This work represents the first time that injectable PHB thermogels have possessed good controllable release effect of chemotherapeutics against the in vivo model of tumors and will benefit various applications, including on-demand drug delivery and personalized medicine.
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Affiliation(s)
- Yun-Long Wu
- School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 P. R. China
| | - Han Wang
- School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 P. R. China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences; Xiamen University; Xiamen 361102 P. R. China
| | - Sing Shy Liow
- Institute of Materials Research and Engineering; A*STAR (Agency for Science, Technology and Research); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
| | - Zibiao Li
- Institute of Materials Research and Engineering; A*STAR (Agency for Science, Technology and Research); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering; A*STAR (Agency for Science, Technology and Research); 2 Fusionopolis Way, Innovis, #08-03 Singapore 138634 Singapore
- Department of Materials Science and Engineering; National University of Singapore; 9 Engineering Drive 1 Singapore 117576 Singapore
- Singapore Eye Research Institute; 11 Third Hospital Avenue Singapore 168751 Singapore
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Yan X, Wang LJ, Wu Z, Wu YL, Liu XX, Chang FR, Fang MJ, Qiu YK. New on-line separation workflow of microbial metabolites via hyphenation of analytical and preparative comprehensive two-dimensional liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1033-1034:1-8. [PMID: 27517521 DOI: 10.1016/j.jchromb.2016.07.053] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 03/04/2016] [Revised: 07/29/2016] [Accepted: 07/31/2016] [Indexed: 01/17/2023]
Abstract
Microbial metabolites represent an important source of bioactive natural products, but always exhibit diverse of chemical structures or complicated chemical composition with low active ingredients content. Traditional separation methods rely mainly on off-line combination of open-column chromatography and preparative high performance liquid chromatography (HPLC). However, the multi-step and prolonged separation procedure might lead to exposure to oxygen and structural transformation of metabolites. In the present work, a new two-dimensional separation workflow for fast isolation and analysis of microbial metabolites from Chaetomium globosum SNSHI-5, a cytotoxic fungus derived from extreme environment. The advantage of this analytical comprehensive two-dimensional liquid chromatography (2D-LC) lies on its ability to analyze the composition of the metabolites, and to optimize the separation conditions for the preparative 2D-LC. Furthermore, gram scale preparative 2D-LC separation of the crude fungus extract could be performed on a medium-pressure liquid chromatograph×preparative high-performance liquid chromatography system, under the optimized condition. Interestingly, 12 cytochalasan derivatives, including two new compounds named cytoglobosin Ab (3) and isochaetoglobosin Db (8), were successfully obtained with high purity in a short period of time. The structures of the isolated metabolites were comprehensively characterized by HR ESI-MS and NMR. To be highlighted, this is the first report on the combination of analytical and preparative 2D-LC for the separation of microbial metabolites. The new workflow exhibited apparent advantages in separation efficiency and sample treatment capacity compared with conventional methods.
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Affiliation(s)
- Xia Yan
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Li-Juan Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Zhen Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Yun-Long Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Xiu-Xiu Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan, China
| | - Mei-Juan Fang
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China.
| | - Ying-Kun Qiu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China.
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22
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Li JF, Fang H, Yan X, Chang FR, Wu Z, Wu YL, Qiu YK. On-line comprehensive two-dimensional normal-phase liquid chromatography×reversed-phase liquid chromatography for preparative isolation of toad venom. J Chromatogr A 2016; 1456:169-75. [DOI: 10.1016/j.chroma.2016.06.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 05/13/2016] [Accepted: 06/02/2016] [Indexed: 10/21/2022]
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Hu HY, Yu XD, Wang F, Lin CR, Zeng JZ, Qiu YK, Fang MJ, Wu Z. Novel N-Substituted 2-(2-(Adamantan-1-yl)-1H-Indol-3-yl)-2-Oxoacetamide Derivatives: Synthesis and Biological Evaluation. Molecules 2016; 21:E530. [PMID: 27164070 PMCID: PMC6273615 DOI: 10.3390/molecules21050530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 03/07/2016] [Revised: 04/03/2016] [Accepted: 04/16/2016] [Indexed: 11/16/2022] Open
Abstract
In this study, a series of novel N-substituted 2-(2-(adamantan-1-yl)-1H-indol-3-yl)-2-oxoacetamide derivatives were synthesized, and evaluated for their cytotoxicity in human cell lines including Hela (cervical cancer), MCF7 (breast cancer ) and HepG2 (liver cancer). Several compounds were found to have potent anti-proliferative activity against those human cancer cell lines and compound 5r showed the most potent biological activity against HepG2 cells with an IC50 value of 10.56 ± 1.14 μΜ. In addition, bioassays showed that compound 5r induced time-dependent and dose-dependent cleavage of poly ADP-ribose polymerase (PARP), and also induced a dose-dependent increase in caspase-3 and caspase-8 activity, but had little effect on caspase-9 protease activity in HepG2 cells. These results provide evidence that 5r-induced apoptosis in HepG2 cell is caspase-8-dependent.
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Affiliation(s)
- Hong-Yu Hu
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Xu-Dong Yu
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Fei Wang
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Chun-Rong Lin
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Jin-Zhang Zeng
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Mei-Juan Fang
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Zhen Wu
- School of Pharmaceutical Sciences and the Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
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24
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Affiliation(s)
- Wei Li
- School of Life Science and Biopharmaceutical, Shenyang Pharmaceutical University, Shenyang, China
| | - Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, The Third Institute of Oceanography, The State Oceanic Administration, Xiamen, China
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen, China
| | - Xia Yan
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhen Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhi-Wei Yi
- Key Laboratory of Marine Biogenetic Resources, The Third Institute of Oceanography, The State Oceanic Administration, Xiamen, China
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen, China
| | - Mei-Juan Fang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Xin Su
- School of Life Science and Biopharmaceutical, Shenyang Pharmaceutical University, Shenyang, China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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25
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Li W, Tang XX, Yan X, Wu Z, Yi ZW, Fang MJ, Su X, Qiu YK. A new macrolactin antibiotic from deep sea-derived bacteria Bacillus subtilis B5. Nat Prod Res 2016; 30:2777-2782. [DOI: 10.1080/14786419.2016.1155576] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Wei Li
- School of Life Science and Biopharmaceutical, Shenyang Pharmaceutical University, Shenyang, China
| | - Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, The Third Institute of Oceanography, The State Oceanic Administration, Xiamen, China
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen, China
| | - Xia Yan
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhen Wu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Zhi-Wei Yi
- Key Laboratory of Marine Biogenetic Resources, The Third Institute of Oceanography, The State Oceanic Administration, Xiamen, China
- South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Xiamen, China
| | - Mei-Juan Fang
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
| | - Xin Su
- School of Life Science and Biopharmaceutical, Shenyang Pharmaceutical University, Shenyang, China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, Xiamen, China
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26
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Wu YL, Wang H, Qiu YK, Loh XJ. PLA-based thermogel for the sustained delivery of chemotherapeutics in a mouse model of hepatocellular carcinoma. RSC Adv 2016. [DOI: 10.1039/c6ra08022g] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This work represents the first time that poly(PEG/PPG/PLA urethane) has been used for the delivery of drugs to tumours in vivo and the encouraging results point to the potential for further development of this thermogel platform for anti-cancer applications.
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Affiliation(s)
- Yun-Long Wu
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen
- P. R. China
| | - Han Wang
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen
- P. R. China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences
- Xiamen University
- Xiamen
- P. R. China
| | - Xian Jun Loh
- Institute of Materials Research and Engineering
- A*STAR (Agency for Science, Technology and Research)
- Singapore 138634
- Singapore
- Department of Materials Science and Engineering
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27
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Liu JL, Wang XY, Zhang LL, Fang MJ, Wu YL, Wu Z, Qiu YK. Corrigendum to “Two-dimensional countercurrent chromatography × high performance liquid chromatography with heart-cutting and stop-and-go techniques for preparative isolation of coumarin derivatives from Peucedanum praeruptorum Dunn” [J. Chromatogr. A 1374 (2014) 156–163]. J Chromatogr A 2015; 1422:352. [DOI: 10.1016/j.chroma.2015.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Chen WB, Li SQ, Chen LJ, Fang MJ, Chen QC, Wu Z, Wu YL, Qiu YK. Online polar two phase countercurrent chromatography×high performance liquid chromatography for preparative isolation of polar polyphenols from tea extract in a single step. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 997:179-86. [DOI: 10.1016/j.jchromb.2015.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 04/03/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
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29
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Wang D, Chen LJ, Liu JL, Wang XY, Wu YL, Fang MJ, Wu Z, Qiu YK. On-line two-dimensional countercurrent chromatography×high performance liquid chromatography system with a novel fragmentary dilution and turbulent mixing interface for preparation of coumarins from Cnidium monnieri. J Chromatogr A 2015; 1406:215-23. [PMID: 26129983 DOI: 10.1016/j.chroma.2015.06.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 01/23/2015] [Revised: 06/06/2015] [Accepted: 06/14/2015] [Indexed: 10/23/2022]
Abstract
This study describes a novel on-line two-dimensional countercurrent chromatography×high performance liquid chromatography (2D CCC×HPLC) system for one-step preparative isolation of coumarins from the fruits of Cnidium monnieri. An optimal biphasic solvent system composed of n-heptane/acetone/water (31:50:19, v/v) with suitable Kd values and a higher retention of the stationary phase was chosen to separate target compounds. In order to address the solvent incompatibility problem between CCC and RP-HPLC, a novel fragmentary dilution and turbulent mixing (FD-TM) interface was successfully developed. In detail, the eluent from the first dimensional CCC column was divided into fractions to form 'sample-dilution' stripes in the two switching sample loops, by the dilution water from the makeup pump. Following this, a long, thin tube was applied to mix the CCC eluent with water by in-tube turbulence, to reduce the solvent effect. Each CCC fraction was alternately trapped on the two holding columns for further preparative HPLC separation. This nationally designed FD-TM strategy effectively reduced post-column pressure and allowed a higher water dilution ratio at the post end of CCC, leading to improved sample recovery and a robust 2D CCC×HPLC isolation system. As a result, in a single 2D separation run (6.5h), eight target compounds (1-8) were isolated from 0.5g crude extract of C. monnieri, in overall yields of 1.3, 2.0, 0.5, 0.5, 0.8, 1.5, 8.2, and 15.0%, with HPLC purity of 90.1, 91.1, 94.7, 99.1, 99.2, 98.2, 97.9, and 91.9%, respectively. We anticipate that this improved 2D CCC×HPLC system, based on the novel FD-TM interface, has broad application for simultaneous isolation and purification of multiple components from other complex plant-derived natural products.
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Affiliation(s)
- Dong Wang
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Long-Jiang Chen
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Jing-Lan Liu
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Xin-Yuan Wang
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Yun-Long Wu
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Mei-Juan Fang
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Zhen Wu
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China
| | - Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen, 361102, China.
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30
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Liu JL, Wang XY, Zhang LL, Fang MJ, Wu YL, Wu Z, Qiu YK. Two-dimensional countercurrent chromatography × high performance liquid chromatography with heart-cutting and stop-and-go techniques for preparative isolation of coumarin derivatives from Peucedanum praeruptorum Dunn. J Chromatogr A 2014; 1374:156-163. [DOI: 10.1016/j.chroma.2014.11.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Revised: 11/19/2014] [Accepted: 11/19/2014] [Indexed: 10/24/2022]
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31
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Yan X, Tang XX, Chen L, Yi ZW, Fang MJ, Wu Z, Qiu YK. Two new cytotoxic indole alkaloids from a deep-sea sediment derived metagenomic clone. Mar Drugs 2014; 12:2156-63. [PMID: 24717525 PMCID: PMC4012447 DOI: 10.3390/md12042156] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Revised: 03/07/2014] [Accepted: 03/10/2014] [Indexed: 11/29/2022] Open
Abstract
Two new indole alkaloids, metagenetriindole A (1) and metagenebiindole A (2), were identified from deep-sea sediment metagenomic clone derived Escherichia coli fermentation broth. The structures of new compounds were elucidated by spectroscopic methods. The two new indole alkaloids demonstrated moderately cytotoxic activity against CNE2, Bel7402 and HT1080 cancer cell lines in vitro.
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Affiliation(s)
- Xia Yan
- Key Laboratory for Chemical Biology of Fujian Province, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Xi-Xiang Tang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, China.
| | - Lin Chen
- Key Laboratory for Chemical Biology of Fujian Province, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Zhi-Wei Yi
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography State Oceanic Administration, Xiamen 361005, China.
| | - Mei-Juan Fang
- Key Laboratory for Chemical Biology of Fujian Province, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Zhen Wu
- Key Laboratory for Chemical Biology of Fujian Province, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
| | - Ying-Kun Qiu
- Key Laboratory for Chemical Biology of Fujian Province, School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361102, China.
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32
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Qiu YK, Yan X, Fang MJ, Chen L, Wu Z, Zhao YF. Two-dimensional countercurrent chromatography × high performance liquid chromatography for preparative isolation of toad venom. J Chromatogr A 2014; 1331:80-9. [PMID: 24484689 DOI: 10.1016/j.chroma.2014.01.029] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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: 10/21/2013] [Revised: 01/09/2014] [Accepted: 01/11/2014] [Indexed: 11/24/2022]
Abstract
In this work, a new on-line two-dimensional chromatography coupling of flow programming counter-current chromatography and high-performance liquid chromatography (2D CCC×HPLC) was developed for preparative separation of complicated natural products. The CCC column was used as the first dimensional isolation and a preparative ODS column operated in reversed-phase (RP) mode as the second dimension. The CCC was operated at a controlled flow rate to ensure that each fraction eluted within one hour, corresponding to the isolation time of the 2nd dimensional preparative HPLC. The eluent from the 1st dimensional CCC was diluted using a makeup pump and trapped onto holding column, before been eluted and transferred to the 2nd dimensional HPLC. The performance of the holding column was evaluated, in terms of column size, dilution ratio and diameter-height ratio, as well as system pressure, for the solution to the issue of online trapping of low pressure eluent from a CCC column. Satisfactory trapping efficiency and tolerable CCC pressure can be achieved using a commercially available 15mm×30mm i.d. ODS pre-column. The present integrated system was successfully applied in a one-step preparative separation of 12 compounds, from the crude methanol extract of venom of Bufo bufo gargarizans. Compounds 1-12 were isolated in overall yield of 1.0%, 0.8%, 2.0%, 1.3%, 2.0%, 1.5%, 1.9%, 3.6%, 6.1%, 4.8%, 3.5% and 4.1%, with HPLC purity of 99.9%, 99.7%, 90.6%, 99.9%, 77.0%, 99.9%, 90.4%, 99.9%, 52.0%, 99.9%, 99.3%, and 85.0%, respectively. All the results demonstrate that the flow programming CCC×HPLC method is an efficient and convenient way for the separation of compounds from toad venom and it can also be applied to isolate other complex multi-component natural products.
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Affiliation(s)
- Ying-Kun Qiu
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361100, China.
| | - Xia Yan
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361100, China
| | - Mei-Juan Fang
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361100, China; College of Chemistry & Chemical Engineering, Xiamen University, South Si-Ming Road, Xiamen 361005, China
| | - Lin Chen
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361100, China
| | - Zhen Wu
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361100, China; College of Chemistry & Chemical Engineering, Xiamen University, South Si-Ming Road, Xiamen 361005, China.
| | - Yu-Fen Zhao
- School of Pharmaceutical Sciences, Xiamen University, South Xiang-An Road, Xiamen 361100, China; College of Chemistry & Chemical Engineering, Xiamen University, South Si-Ming Road, Xiamen 361005, China
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33
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Abstract
Two new compounds, penicillone A (1) and penicillactam (2), were isolated together with 17 known compounds from a marine-derived fungus Penicillium sp. F11. The structures of the new compounds as well as a firstly literatural reported known compound (3) were assigned by spectroscopic methods including 1D/2D NMR and MS analysis techniques. Their cytotoxicities against HT1080, Cne2, and Bel7402 cell lines were also evaluated.
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Affiliation(s)
- Ping Zhuang
- Medical College, Xiamen University, Xiamen, 361005, China
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Chen L, Tang XX, Zheng M, Yi ZW, Xiao X, Qiu YK, Wu Z. A novel indole alkaloid from deep-sea sediment metagenomic clone-derived Escherichia coli fermentation broth. J Asian Nat Prod Res 2011; 13:444-448. [PMID: 21534044 DOI: 10.1080/10286020.2011.570262] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
To explore secondary metabolites in deep-sea sediment metagenomic clone-derived Escherichia coli fermentation broth, different kinds of chromatography methods were used in the isolation procedures, while the structures of the isolated compounds were assigned based on the MS analysis and their (1)H and (13)C NMR spectra including 2D NMR techniques such as COSY, HMQC, and HMBC experiments. As a result, a novel compound was isolated and characterized as N-{1-[4-(acetylamino)phenyl]-3-hydroxy-1-(1H-indol-3-yl)propan-2-yl}-2,2-dichloroacetamide (1). In addition, eight known compounds were also obtained. Fatty acid amide hydrolase and monoacylglycerol lipase were used to screen analgesic activity, and the new compound showed analgesic activity to some extent in pharmacological test.
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Affiliation(s)
- Lin Chen
- Medical College, Xiamen University, China
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35
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Wu FK, Qiu YK, Zhao HY, Wu Z, Li FM, Jiang YT, Chen JY. Cytotoxic constituents from the skin of the toad Bufo bufo gargarizans. J Asian Nat Prod Res 2011; 13:111-116. [PMID: 21279874 DOI: 10.1080/10286020.2010.545350] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
To study the chemical composition of the skin of Bufo bufo gargarizans, various chromatographic methods were used in the isolation procedures and the structures of isolated compounds were determined based on NMR and MS analysis. As a result, two new compounds were isolated from its ethanolic extract and characterized as N-[2-hydroxy-2-(4-hydroxyphenyl)ethyl]-N-methylurea (1) and 19-oxocinobufotalin 3-adipoylarginine ester (2), together with 11 known compounds. Isolated bufadienolides showed significant inhibition effect against human hepatocellular carcinoma cell line SMMC-7721 in vitro.
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Affiliation(s)
- Fu-Kai Wu
- Shenyang Pharmaceutical University, Shenyang, China
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36
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Cheng HM, Qiu YK, Wu Z, Zhao YF. DNA damage induced by shikonin in the presence of Cu(II) ions: potential mechanism of its activity to apoptotic cell death. J Asian Nat Prod Res 2011; 13:12-19. [PMID: 21253945 DOI: 10.1080/10286020.2010.537262] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Shikonin (β-alkannin), a naphthazarin derivative, has shown a variety of abilities such as anti-inflammatory, antitumoral, cytotoxic, and antimicrobial activities. In the presence of Cu(II), shikonin caused breakage of supercoiled plasmid pBR322 DNA. Other metal ions tested [Mg(II), Ca(II), and Ni(II)] were ineffective and only Fe(II) has the same ability in the DNA breakage reaction. The involvement of active oxygen in the reaction was established by the inhibition of DNA breakage by superoxide dismutase, catalase, thiourea, sodium azide, potassium iodide, and sodium benzoate. Cu(I) was shown to be an essential intermediate using the Cu(I)-specific sequestering reagent neocuproine. Shikonin induced HeLa cell apoptosis involved in the mechanism of increasing intracellular reactive oxygen species (ROS). It was suggested that shikonin generated ROS as a pro-oxidant in the presence of Cu(II), and ROS resulted in DNA damage and apoptotic cell death in cells.
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Affiliation(s)
- Hong-Ming Cheng
- Department of Chemistry and Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, China
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37
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Zhao HY, Wu FK, Qiu YK, Wu Z, Jiang YT, Chen JY. Studies on cytotoxic constituents from the skin of the toad Bufo bufo gargarizans. J Asian Nat Prod Res 2010; 12:793-800. [PMID: 20839128 DOI: 10.1080/10286020.2010.505187] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
To study the chemical composition of the skin of Bufo bufo gargarizans, many kinds of chromatography methods were used in the isolation procedures, while the structures of isolated compounds were determined on the basis of their NMR and MS spectral analysis. As a result, two new compounds were isolated from its ethanolic extract and characterized as cinobufotalin 3-nonanedioylarginine ester (8) and bufotalin 3-pimeloylarginine ester (14). Furthermore, 13 known compounds were obtained. Isolated bufadienolides showed significant inhibition effect against SMMC-7721 cell lines in vitro.
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Affiliation(s)
- Hu-Yi Zhao
- Medical College, Xiamen University, Xiamen, China
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Dou DQ, Tian F, Qiu YK, Xiang Z, Xu BX, Kang TG, Dong F. Studies on chemical constituents of the leaves of Smallantus sonchifolius (yacon): structures of two new diterpenes. Nat Prod Res 2010; 24:40-7. [PMID: 20013471 DOI: 10.1080/14786410802393621] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The extract from the leaves of Smallantus sonchifolius (yacon) was found to show potent anti-diabetic activity. Two new diterpenes, named ent-kaurane-3beta,16beta,17, 19-tetrol (1) and ent-kaurane-16beta,17,18,19-tetrol (2), were isolated from the extract, together with six known compounds. The structures of the new compounds were determined on the basis of chemical and physicochemical evidence.
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Affiliation(s)
- De-Qiang Dou
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life One Road, Dalian 116600, China
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Qiu YK, Dou DQ, Cai LP, Jiang HP, Kang TG, Yang BY, Kuang HX, Li MZ. Dammarane-type saponins from Panax quinquefolium and their inhibition activity on human breast cancer MCF-7 cells. Fitoterapia 2009; 80:219-22. [PMID: 19535014 DOI: 10.1016/j.fitote.2009.01.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 01/21/2009] [Accepted: 01/21/2009] [Indexed: 11/17/2022]
Abstract
A new compound, named quinquefoloside-L(c) (1), together with nine known compounds, was isolated from leaves of Panax quinquefolium, and its structure was elucidated as 3beta,12beta, 20S-trihydroxy-25-methoxydammar-23-ene 3-O-beta-D-glucopyranosyl (1-->2)beta-D-glucopyranosyl-20-O-beta-D-xylopyanosyl (1-->6) beta-D-glucopyranoside (1), on the basis of MS, 1D-and 2D-NMR experiments as well as by chemical degradation. The cytotoxicity of these compounds against human breast cancer MCF-7 cell line was also tested by MTT method.
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Affiliation(s)
- Ying-Kun Qiu
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, DD Port, Dalian Economic and Technical Development Zone, 116600 Dalian, China
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40
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Abstract
Three novel compounds, together with five known ingredients, octacosanol, 3',4',5-trihydroxy-3,7-dimethoxyflavone, 3,4-dihydroxybenzaldehyde, isorhamnetin, and ent-kaurane-3beta,16beta,17-triol, were obtained from the leaves of Smallanthus sonchifolius (yacon), and their structures were elucidated as ent-kaurane-3beta,16beta,17,18-tertol (1), 3R,7E-9-butoxyl-megastigma-3-ol-3-O-beta-D-glucopyranoside (2), and 3S,5R,6Z-megastigma-6-en-3,5,8,9-tertol (3) on the basis of spectroscopic and chemical methods.
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Affiliation(s)
- Ying-Kun Qiu
- School of Pharmacy, Liaoning University of Traditional Chinese Medicine, Dalian, China
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41
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Jiang HP, Qiu YK, Cheng DR, Kang TG, Dou DQ. Structure elucidation and complete NMR spectral assignments of two new dammarane-type tetraglycosides from Panax quinquefolium. Magn Reson Chem 2008; 46:786-90. [PMID: 18478623 DOI: 10.1002/mrc.2247] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Two new saponins were isolated from leaves of Panax quinquefolium and their structures were elucidated as 3beta, 12beta, 20S-trihydroxy-25-methoxydammar-23-ene 3-O-{[beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranosyl]-20-O-[alpha-L-arabinopyranosyl(1-->6)]-beta-D-glucopyranoside (1) and 3beta, 20S-dihydroxy-12beta, 23R-epoxydammar-24-ene 3-O-{[beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranosyl]-20-O-[beta-D-xylopyanosyl(1-->6)]-beta-D-glucopyranoside (2) on the basis of (1)D and (2)D NMR (including (1)H, (13)C-NMR, (1)H-(1)H COSY, HSQC, TOCSY, HMBC, and NOESY), ESI-MS spectrometry and chemical methods.
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Affiliation(s)
- Hai-Ping Jiang
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life one Road, DD Port, Dalian 116600, China
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42
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Dou DQ, Tian F, Qiu YK, Kang TG, Dong F. Structure elucidation and complete NMR spectral assignments of four new diterpenoids from Smallantus sonchifolius. Magn Reson Chem 2008; 46:775-779. [PMID: 18470882 DOI: 10.1002/mrc.2242] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Four new diterpenoids, named smaditerpenic acid A-D, together with five known compounds, were isolated from the H(2)O extract of the leaves of Smallantus sonchifolius (yacon) cultivated in Liaoning, China and their structures were elucidated on the basis of one- and two-dimensional NMR (including (1)H, (13)C-NMR, (1)H-(1)H COSY, HSQC, TOCSY, HMBC, and ROESY), electrospray ionization mass spectrometry (ESI-MS), and chemical methods.
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Affiliation(s)
- De-Qiang Dou
- College of Pharmacy, Liaoning University of Traditional Chinese Medicine, DD Port, Dalian 116600, China.
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Wang SN, Deng YH, Xu H, Wu HB, Qiu YK, Chen DW. Synthesis of a novel galactosylated lipid and its application to the hepatocyte-selective targeting of liposomal doxorubicin. Eur J Pharm Biopharm 2006; 62:32-8. [PMID: 16226883 DOI: 10.1016/j.ejpb.2005.07.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2005] [Revised: 07/15/2005] [Accepted: 07/15/2005] [Indexed: 11/29/2022]
Abstract
This paper described the synthesis of a novel galactosylated lipid with mono-galactoside moiety, (5-Cholesten-3beta-yl) 4-oxo-4-[2-(lactobionyl amido) ethylamido] butanoate (CHS-ED-LA), and the targetability of doxorubicin (DOX), a model drug, in liposomes containing 10% mol/mol CHS-ED-LA (galactosylated liposomes, GalL) to the liver was studied. The weighted-average overall drug targeting efficiency (Te(*)) was used to evaluate the liver targetability of GalL DOX. The results showed that GalL DOX gave a relatively high (Te(*))(liver) value of 64.6%, while DOX in conventional liposome (CL DOX) only gave a (Te(*))(liver) value of 21.8%. In the liver, the GalL DOX was mainly taken up by parenchymal cells (88% of the total hepatic uptake). Moreover, preinjection of asialofetuin significantly inhibited the liver uptake of GalL DOX (from 70 to 12% of the total injected dose). It was suggested that liposomes containing such novel galactosylated lipid, CHS-ED-LA, had a great potential as drug delivery carriers for hepatocyte-selective targeting.
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Affiliation(s)
- Shao-Ning Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, People's Republic of China
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