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Zhao Y, Li J, Ma R, He F, Shi H, Duan X, Li H, Xie X, She X. Ten-Step Total Synthesis of (-)-Andranginine. Org Lett 2022; 24:6880-6883. [PMID: 36098548 DOI: 10.1021/acs.orglett.2c02927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The total synthesis of the indole alkaloid (-)-andranginine has been achieved in 10 steps. Key reactions of the synthesis include a nucleophilic addition of acetylenyl anion to chiral N-sulfinyl imine, an intramolecular N-alkylation reaction to close the C ring, and a dienyne metathesis cascade reaction to construct the DE rings. Meanwhile, 16-epi-(-)-andranginine was also obtained with the developed strategy.
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Affiliation(s)
- Yulong Zhao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Jiaxin Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Ruize Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Feifei He
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Hongliang Shi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Xiaoguang Duan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Huilin Li
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu P. R. China
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2
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Hop NQ, Son NT. A comprehensive review on phytochemistry and pharmacology of genus Kopsia: monoterpene alkaloids - major secondary metabolites. RSC Adv 2022; 12:19171-19208. [PMID: 35865593 PMCID: PMC9253876 DOI: 10.1039/d2ra01791a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 06/21/2022] [Indexed: 11/21/2022] Open
Abstract
Kopsia belongs to the family Apocynaceae, which was originally classified as a genus in 1823. Kopsia consists of medicinal plants that can be traditionally used to treat rheumatoid arthritis, pharyngitis, tonsillitis, and dropsy. More than one hundred and twenty-five publications have been documented relating to the phytochemical and pharmacological results, but a systematic review is not available. The goal of this study is to compile almost all of the secondary metabolites from the plants of genus Kopsia, as well as the coverage of their pharmacological research. The document findings were conducted via reliable sources, including Web of Science, Sci-Finder, Science Direct, PubMed, Google Scholar, and publishers, while four words “Kopsia”, “monoterpene alkaloids”, “Phytochemistry” and “Pharmacology” are key factors to search for references. Most Kopsia secondary metabolites were collected. A total of four hundred and seventy-two, including four hundred and sixty-six monoterpene alkaloids, five triterpenoids, and one sterol, were summarized, along with their resource. Kopsia monoterpene alkaloids presented in various skeletons, but aspidofractinines, eburnamines, and chanofruticosinates are the three major backbones. Mersinines and pauciflorines are new chemical classes of monoterpene alkaloids. With the rich content of monoterpene alkaloids, Kopsia constituents were also the main objects in pharmacological studies since the plant extracts and isolated compounds were proposed for anti-microbial, anti-inflammatory, anti-allergic, anti-diabetic, anti-manic, anti-nociceptive, acetylcholinesterase (AChE) inhibitory, cardiovascular, and vasorelaxant activities, especially cytotoxicity. Monoterpene alkaloids (466 isolated compounds) are major components, and anticancer activity is characteristic of Kopsia constituents.![]()
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Affiliation(s)
- Nguyen Quang Hop
- Faculty of Chemistry, Hanoi Pedagogical University 2 (HPU2) Nguyen Van Linh, Xuanhoa Phucyen Vinhphuc Vietnam
| | - Ninh The Son
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST) 18 Hoang Quoc Viet, Caugiay Hanoi Vietnam .,Graduate University of Science and Technology, VAST Vietnam
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3
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Wang N, Lang Y, Wang J, Wu Z, Lu Y. Phosphine-Catalyzed Sequential [3 + 2]/[3 + 2] Annulation between Allenoates and Arylidenemalononitriles for the Enantioselective Construction of Bicyclo[3,3,0]octenes and Cyclopenta[ c]quinolinones. Org Lett 2022; 24:3712-3716. [PMID: 35584054 DOI: 10.1021/acs.orglett.2c01352] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A highly diastereo- and enantioselective phosphine-catalyzed sequential [3 + 2]/[3 + 2] annulation of allenoates with arylidenemalononitriles has been developed. This reaction allows for the facile construction of multifunctionalized cis-fused bicyclic[3,3,0]octene scaffolds, encompassing three consecutive stereogenic centers with one quaternary carbon center, in a one-step operation from readily available materials. The reported protocol is scalable, operates under mild reaction conditions, and creates the core structural motif of a number of natural products.
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Affiliation(s)
- Nengzhong Wang
- Hubei Key Laboratory of Natural Products Research and Development, Key Laboratory of Functional Yeast (China National Light Industry), College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, Hubei 443002, China
| | - Yimin Lang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Junjie Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Bin-hai New City, Fuzhou, Fujian 350207, China
| | - Zugen Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543
| | - Yixin Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Bin-hai New City, Fuzhou, Fujian 350207, China
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4
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Lee S, Sperry J. Isolation and biological activity of azocine and azocane alkaloids. Bioorg Med Chem 2021; 54:116560. [PMID: 34923389 DOI: 10.1016/j.bmc.2021.116560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/04/2021] [Accepted: 12/07/2021] [Indexed: 12/25/2022]
Abstract
Thousands of known alkaloids contain a nitrogen (N) heterocycle. While five-, six- and seven-membered N-heterocycles (ie: pyrroles, imidazoles, indoles, pyridines and azepines and their saturated variants) are common, those with an eight-membered N-heterocycle are comparatively rare. This review discusses the structure and bioactivity of alkaloids that contain an azocine (or saturated azocane) ring, and the array of sources whence they originate.
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Affiliation(s)
- Stephanie Lee
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand
| | - Jonathan Sperry
- School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland, New Zealand.
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5
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Yang M, Wang Y, Fan Z, Xue Q, Njateng GSS, Liu Y, Cao J, Khan A, Cheng G. Chemical constituents and anti-inflammatory activity of the total alkaloid extract from Melodinus cochinchinensis (Lour.) Merr. and its inhibition of the NF-κB and MAPK signaling pathways. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2021; 91:153684. [PMID: 34400050 DOI: 10.1016/j.phymed.2021.153684] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/29/2021] [Accepted: 07/17/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Melodinus cochinchinensis (Lour.) Merr. is a medicinal plant, which is used as a folk medicine for treating meningitis and fractures. However, the anti-inflammatory activity of total alkaloid extract from M. cochinchinensis (MCTA) and its molecular mechanism are still not studied. PURPOSE The aim of this study is to investigate the main chemical constituents of MCTA and explore its anti-inflammatory potential in both in vitro and in vivo assessments. METHODS UHPLC-ESI-HRMS/MS was applied to analyze the chemical profiling. The anti-inflammatory efficacy of MCTA was evaluated on lipopolysaccharide (LPS) induced RAW 264.7 cells and two common inflammation models in mice. The production of pro-inflammatory mediator and cytokine was tested using the ELISA method. The pathological change was analyzed by histological assessment. The expression of NF-κB, MAPKs and PPAR-γ proteins was evaluated using western blot analysis. RESULTS A total of 21 monoterpenoid indole alkaloids (MIAs) were characterized by UHPLC-ESI-HRMS/MS. Aspidospermine- and quinolone-type alkaloids were found to be the major compounds. MCTA significantly decreased the production of NO, IL-1β, IL-6 and TNF-α in LPS-induced RAW 264.7 macrophages. MCTA significantly inhibited the phosphorylation of ERK1/2, JNK and p38 MAPK, suppressed the NF-κB transcriptional activation and improved the PPAR-γ expression. Moreover, the in vivo experiment exhibited that MCTA pretreatment markedly alleviated the xylene-induced ear edema and carrageenan-induced paw edema in mice and decreased the IL-1β, IL-6 and TNF-α expressions. CONCLUSION MCTA is rich in MIAs and exhibited a significant inhibitory effect on the production proinflammatory cytokines. The mechanism might be related to the inhibition of activation of NF-κB and MAPK pathways.
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Affiliation(s)
- Meilian Yang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China
| | - Yudan Wang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China
| | - Zhifeng Fan
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China
| | - Qingwang Xue
- Department of Chemistry, Liaocheng University, Liaocheng 252059 Shandong, China
| | - Guy Sedar Singor Njateng
- Department of Biochemistry, Faculty of science, University of Dschang, P.O. Box 67, Dschang, Cameroon
| | - Yaping Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China
| | - Jianxin Cao
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan
| | - Guiguang Cheng
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China.
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6
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Li FR, Liu L, Liu YP, Wang JT, Yang ML, Khan A, Qin XJ, Wang YD, Cheng GG. HRESIMS-guided isolation of aspidosperma-scandine type bisindole alkaloids from Melodinus cochinchinensis and their anti-inflammatory and cytotoxic activities. PHYTOCHEMISTRY 2021; 184:112673. [PMID: 33556841 DOI: 10.1016/j.phytochem.2021.112673] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 06/12/2023]
Abstract
The Melodinus species have been proved to be good resources of bisindole alkaloids. Six bisindole alkaloids were isolated from the leaves and stems of Melodinus cochinchinensis (Lour.) Merr. guided by HRESIMS data analysis. Among them, melokhanines K-M, epi-scandomelonine, and epi-scandomeline possessed aspidosperma-scandine skeleton linked by a C-C bond while meloyine II had a scandine-scandine skeleton. The structures were established by extensive spectroscopic analysis of their HRESIMS and NMR data. Melokhanines K-M were undescribed compounds, while epi-scandomelonine, epi-scandomeline and meloyine II were known compounds, which were reported from Melodinus species for the first time. The anti-inflammatory and cytotoxic activities of the isolates were also evaluated in vitro. Melokhanine K and meloyine II showed potent inhibitory activity on the production of nitric oxide, interleukin-6, and tumor necrosis factor-α in LPS-induced RAW 264.7 macrophages, whereas epi-scandomelonine and epi-scandomeline exhibited certain cytotoxic activity against MOLT-4 cells with IC50 values 5.2 and 1.5 μM, respectively.
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Affiliation(s)
- Fang-Ru Li
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Lu Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China; Yunnan Provincial Key Laboratory of Molecular Biology for Sinomedicine, Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Ya-Ping Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Jin-Tang Wang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Mei-Lian Yang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad, 22060, Pakistan
| | - Xu-Jie Qin
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Yu-Dan Wang
- National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, China.
| | - Gui-Guang Cheng
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, China.
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7
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Zhang FL, He J, Feng T, Liu JK. Melodinines Y1–Y4, four monoterpene indole alkaloids from Melodinus henryi. RSC Adv 2021; 11:23-29. [PMID: 35423052 PMCID: PMC8690234 DOI: 10.1039/d0ra09819a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 12/11/2020] [Indexed: 12/01/2022] Open
Abstract
Melodinines Y1–Y4 (1–4), four undescribed alkaloids were isolated from Melodinus henryi. Their structures were elucidated by extensive NMR, mass spectroscopic analyses, theoretical NMR and electronic circular dichroism (ECD) calculations. Compounds 1 and 2 are the first examples of bisindole alkaloids possessing an eburnamine–leuconoxine combination. Compound 3 is a rare 2,3-seco pleiocarpamine type monoterpene indole alkaloid. Compound 1 showed cytotoxic activities against six human cancer cell lines with IC50 values of 0.5–15.2 μM. Monoterpenoid indole alkaloids from Melodinus henryi![]()
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Affiliation(s)
- Fa-Lei Zhang
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- People's Republic of China
| | - Juan He
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- People's Republic of China
| | - Tao Feng
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- People's Republic of China
| | - Ji-Kai Liu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- People's Republic of China
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8
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Ahmad R, Srivastava S, Ghosh S, Khare SK. Phytochemical delivery through nanocarriers: a review. Colloids Surf B Biointerfaces 2021; 197:111389. [PMID: 33075659 DOI: 10.1016/j.colsurfb.2020.111389] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/17/2020] [Accepted: 09/24/2020] [Indexed: 01/18/2023]
Abstract
In recent times, phytochemicals encapsulated or conjugated with nanocarriers for delivery to the specific sites have gained considerable research interest. Phytochemicals are mostly plant secondary metabolites which reported to be beneficial for human health and in disease theraphy. However, these compound are large size and polar nature of these compounds, make it difficult to cross the blood-brain barrier (BBB), endothelial lining of blood vessels, gastrointestinal tract and mucosa. Moreover, they are enzymatically degraded in the gastrointestinal tract. Therefore, encapsulation or conjugation of these compounds with nanocrriers could be an alternate way to enhance their bioefficacy by influencing their gastrointestinal stability, rate of absorption and dispersion. This review presents an overview of nanocarriers alternatives which improves therapeutic value and avoid toxicity, by releasing bioactive compounds specifically at target tissues with enhanced stability and bioavailability. Future investigations may emphasize on deciphering the structural changes in nanocarriers during digestion and absorption, the difference between in-vitro and in-vivo digestion simulations, and impact of nanocarriers on the metabolism of phytochemicals.
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Affiliation(s)
- Razi Ahmad
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Sukriti Srivastava
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Shubhrima Ghosh
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Sunil Kumar Khare
- Enzyme and Microbial Biochemistry Laboratory, Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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Yang M, Wang Y, Fan Z, Xue Q, Njateng GSS, Liu Y, Cao J, Zhao T, Cheng G. Acute and Sub-Acute Toxicological Evaluations of Bioactive Alkaloidal Extract from Melodinus henryi and Their Main Chemical Constituents. NATURAL PRODUCTS AND BIOPROSPECTING 2020; 10:227-241. [PMID: 32519306 PMCID: PMC7367981 DOI: 10.1007/s13659-020-00252-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 06/04/2020] [Indexed: 05/05/2023]
Abstract
Melodinus henryi is a good source of terpenoid indole alkaloids, and traditionally used as a folk medicine in the treatment of meningitis and fracture. In order to further exploit their potential uses, its anti-inflammatory and immunosuppressive activities, safety evaluations and chemical profiles have been illustrated. Compared to the crude methanol extract from M. henryi and its non-alkaloidal fraction, the total alkaloidal fraction (MHTA) had the strongest anti-inflammatory and immunosuppressive activities. In the acute oral toxicity assay, the half lethal dose (LD50) of MHTA was more than 2000 mg/kg. The sub-acute toxicity assay for consecutive 28 days exhibited MHTA at a lower concentrations of less than 500 mg/kg might be regarded as safe, and might damage spleen, liver, kidney, and heart when the dose is higher than 1000 mg/kg. In addition, a phytochemical investigation on MHTA led to the isolation of 15 monoterpenoid indole alkaloids. Thus, in regard with the potent side effects of MHTA, it should be used with caution in the development of phytomedicine.
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Affiliation(s)
- Meilian Yang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Yudan Wang
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
- Engineering Research Center of Biopolymer Functional Materials of Yunnan, Yunnan Minzu University, Kunming, 650500, People's Republic of China
| | - Zhifeng Fan
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Qingwang Xue
- Department of Chemistry, Liaocheng University, Liaocheng, 252059, Shandong, China
| | - Guy Sedar Singor Njateng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, People's Republic of China
| | - Yaping Liu
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650204, People's Republic of China
| | - Jianxin Cao
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China
| | - Tianrui Zhao
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
| | - Guiguang Cheng
- Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China.
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10
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Fang ZY, He TT, Du SY, Zhang M, Zhang YQ, Fang L. Cytotoxic aspidosperma-type alkaloids from Melodinus suaveolens. Fitoterapia 2020; 143:104588. [PMID: 32272162 DOI: 10.1016/j.fitote.2020.104588] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 11/29/2022]
Abstract
Four new aspidosperma-type alkaloids, melosuavines J-M (1-4) were isolated from the leaves of Melodinus suaveolens. Their structures with absolute configurations were elucidated by extensive HRESIMS and NMR spectroscopic analysis, as well as ECD calculations and Mosher's method. Their cytotoxic activities against four human cancer cell lines were also evaluated.
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Affiliation(s)
- Zhong-Ying Fang
- Key laboratory of Natural Pharmaceutical Chemistry, Shandong University of Traditional Chinese Medicine, Jinan 250200, China; School of Biological Science and Technology, University of Jinan, Jinan 250022, PR China
| | - Tian-Tian He
- School of Biological Science and Technology, University of Jinan, Jinan 250022, PR China
| | - Si-Yu Du
- Key laboratory of Natural Pharmaceutical Chemistry, Shandong University of Traditional Chinese Medicine, Jinan 250200, China
| | - Miao Zhang
- School of Biological Science and Technology, University of Jinan, Jinan 250022, PR China
| | - Yong-Qing Zhang
- Key laboratory of Natural Pharmaceutical Chemistry, Shandong University of Traditional Chinese Medicine, Jinan 250200, China
| | - Lei Fang
- Key laboratory of Natural Pharmaceutical Chemistry, Shandong University of Traditional Chinese Medicine, Jinan 250200, China; School of Biological Science and Technology, University of Jinan, Jinan 250022, PR China.
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11
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Zhou J, Du SY, Fang ZY, Feng JH. Melognine, a novel monoterpenoid indole alkaloid from Melodinus fusiformis that induce apoptosis in BT549 cells. Nat Prod Res 2019; 35:3004-3010. [PMID: 31674840 DOI: 10.1080/14786419.2019.1682579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A novel monoterpenoid indole alkaloid, melognine (1) possessing an unprecedented skeleton with a 6/6/5/5/6/6 hexatomic rearranged ring system was isolated from the stems of Melodinus fusiformis. The structure with absolute configuration of 1 was established by extensive spectroscopic analyses and quantum ECD calculations. Melognine showed significant cytotoxicity on human breast cancer BT549 cells with an IC50 value of 1.49 μM by MTT assay. Further mechanism of action study indicated that melognine demonstrated the ability to induce apoptosis by activation of caspase-3 and p53, and downregulation of Bcl-2 in BT549 cells.
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Affiliation(s)
- Jie Zhou
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Si-Yu Du
- Key Laboratory of Natural Pharmaceutical Chemistry, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhong-Ying Fang
- Key Laboratory of Natural Pharmaceutical Chemistry, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jin-Hong Feng
- Shandong Key Laboratory of TCM Quality Control Technology, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
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12
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13
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Fang L, He TT, Zhu KK, Zhang M, Zhou J, Zhang H. Cytotoxic aspidosperma-type alkaloids from Melodinus axillaris. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2019; 21:284-290. [PMID: 30661398 DOI: 10.1080/10286020.2018.1561668] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 12/16/2018] [Indexed: 06/09/2023]
Abstract
One new aspidosperma-type alkaloid, melotenine A (1), together with five known ones (2-6), was isolated from the leaves of Melodinus axillaris. Their structures were elucidated by detailed spectroscopic analysis and quantum chemical ECD calculation. The isolated aspidosperma-type alkaloids were evaluated for their cytotoxicity against four human cancer cell lines and melotenine A showed significant cytotoxicity against all cells with IC50 values ranging from 0.6 to 1.5 μM.
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Affiliation(s)
- Lei Fang
- a School of Biological Science and Technology , University of Jinan , Jinan 250022 , China
- b State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources , Guangxi Normal University , Guilin 541004 , China
| | - Tian-Tian He
- a School of Biological Science and Technology , University of Jinan , Jinan 250022 , China
| | - Kong-Kai Zhu
- a School of Biological Science and Technology , University of Jinan , Jinan 250022 , China
| | - Miao Zhang
- a School of Biological Science and Technology , University of Jinan , Jinan 250022 , China
| | - Jie Zhou
- a School of Biological Science and Technology , University of Jinan , Jinan 250022 , China
| | - Hua Zhang
- a School of Biological Science and Technology , University of Jinan , Jinan 250022 , China
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Melosuavine I, an apoptosis-inducing bisindole alkaloid from Melodinus suaveolens. Fitoterapia 2019; 133:175-179. [DOI: 10.1016/j.fitote.2018.12.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/30/2018] [Accepted: 12/30/2018] [Indexed: 11/21/2022]
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15
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Xiao J, Cao Y, Huang Q. Edible Nanoencapsulation Vehicles for Oral Delivery of Phytochemicals: A Perspective Paper. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:6727-6735. [PMID: 28737908 DOI: 10.1021/acs.jafc.7b02128] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Edible nanoencapsulation vehicles (ENVs) designed for the delivery of phytochemicals have gained increasing research interest. The major driving force for this trend is the potential bioavailability enhancement effect for phytochemicals when delivered via ENVs. ENVs affect the bioefficacy of phytochemicals by influencing their dispersion and gastrointestinal stability, rate and site of release, transportation efficiency across the endothelial layer, systemic circulation and biodistribution, and regulation of gut microflora. Enhanced bioefficacy can be achieved by rational design of the size, surface property, matrix materials, and compartment structure of ENVs according to properties of phytochemicals. Future investigations may lay particular emphasis on examining the relevance between results gained by in vitro digestion simulations and those obtained via in vivo digestion simulations, structural evolutions of ENVs during digestion and absorption, impacts of ENVs on the metabolism of phytochemicals, and using ENVs for deciphering the reciprocal interactions between phytochemicals and gut microbiota.
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Affiliation(s)
- Jie Xiao
- Department of Food Science, College of Food Science, South China Agricultural University , Guangzhou, Guangdong 510640, People's Republic of China
| | - Yong Cao
- Department of Food Science, College of Food Science, South China Agricultural University , Guangzhou, Guangdong 510640, People's Republic of China
| | - Qingrong Huang
- Department of Food Science, Rutgers, The State University of New Jersey , 65 Dudley Road, New Brunswick, New Jersey 08901, United States
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Zhou J, Feng JH, Fang L. A novel monoterpenoid indole alkaloid with anticancer activity from Melodinus khasianus. Bioorg Med Chem Lett 2017; 27:893-896. [DOI: 10.1016/j.bmcl.2017.01.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 12/28/2016] [Accepted: 01/05/2017] [Indexed: 11/29/2022]
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17
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Fang L, Tian SM, Zhou J, Lin YL, Wang ZW, Wang X. Melaxillines A and B, monoterpenoid indole alkaloids from Melodinus axillaris. Fitoterapia 2016; 115:173-176. [PMID: 28327293 DOI: 10.1016/j.fitote.2016.10.012] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Revised: 10/23/2016] [Accepted: 10/26/2016] [Indexed: 11/15/2022]
Abstract
Two new monoterpenoid indole alkaloids, melaxillines A (1) and B (2), together with four known alkaloids (3-6), were isolated from the roots of Melodinus axillaris. The structures were determined by extensive spectroscopic methods, including 1D and 2D-NMR spectroscopy, high resolution mass spectrometric data, and by comparison to literature data. New compounds 1-2 might be derived from a common precursor (3) by proposing their biogenetic route, and compound 1 represents the first Melodinus alkaloid featuring an ethyl acetate group skeleton at C-18. The anti-inflammatory effects of all the isolated compounds were evaluated by measuring the inhibitory ratios of β-glucuronidase release in rat polymorphonuclear leukocytes (PMNs) induced by platelet-activating factor. Compounds 1-4 showed significant anti-inflammatory activities with IC50 values ranging from 1.51 to 21.56μM, respectively.
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Affiliation(s)
- Lei Fang
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, PR China; Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, PR China
| | - Shan-Ming Tian
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, PR China
| | - Jie Zhou
- College of Biological Sciences and Technology, University of Jinan, Jinan 250022, PR China; Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, PR China.
| | - Yun-Liang Lin
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, PR China
| | - Zhi-Wei Wang
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, PR China
| | - Xiao Wang
- Shandong Analysis and Test Center, Shandong Academy of Sciences, Jinan 250014, PR China.
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