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Bangay G, Brauning FZ, Rosatella A, Díaz-Lanza AM, Domínguez-Martín EM, Goncalves B, Hussein AA, Efferth T, Rijo P. Anticancer diterpenes of African natural products: Mechanistic pathways and preclinical developments. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155634. [PMID: 38718637 DOI: 10.1016/j.phymed.2024.155634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/07/2024] [Accepted: 04/11/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND The African continent is home to five biodiversity hotspots, boasting an immense wealth of medicinal flora, fungi and marine life. Diterpenes extracted from such natural products have compelling cytotoxic activities that warrant further exploration for the drug market, particularly in cancer therapy, where mortality rates remain elevated worldwide. PURPOSE To demonstrate the potential of African natural products on the global stage for cancer therapy development and provide an in-depth analysis of the current literature on the activity of cancer cytotoxic diterpenes from African natural sources (to our knowledge, the first of its kind); not only to reveal the most promising candidates for clinical development, but to demonstrate the importance of preserving the threatened ecosystems of Africa. METHODS A comprehensive search by means of the PRISMA strategy was conducted using electronic databases, namely Web of Science, PubMed, Google Scholar and ScienceDirect. The search terms employed were 'diterpene & mechanism & cancer' and 'diterpene & clinical & cancer'. The selection process involved assessing titles in English, Portuguese and Spanish, adhering to predefined eligibility criteria. The timeframe for inclusion spanned from 2010 to 2023, resulting in 218 relevant papers. Chemical structures were visualized using ChemDraw 21.0, PubChem was utilized to search for CID numbers. RESULTS Despite being one of the richest biodiverse zones in the world, African natural products are proportionally underreported compared to Asian countries or otherwise. The diterpenes andrographolide (Andrographis paniculata), forskolin (Coleus forskohlii), ent-kauranes from Isodon spp., euphosorophane A (Euphorbia sororia), cafestol & kahweol (Coffea spp.), macrocylic jolkinol D derivatives (Euphorbia piscatoria) and cyathane erinacine A (Hericium erinaceus) illustrated the most encouraging data for further cancer therapy exploration and development. CONCLUSIONS Diterpenes from African natural products have the potential to be economically significant active pharmaceutical and medicinal ingredients, specifically focussed on anticancer therapeutics.
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Affiliation(s)
- Gabrielle Bangay
- Center for Research in Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal; Universidad de Alcalá de Henares. Facultad de Farmacia, Departamento de Ciencias Biomédicas (Área de Farmacología; Nuevos agentes antitumorales, Acción tóxica sobre células leucémicas). Ctra. Madrid-Barcelona km. 33,600 28805 Alcalá de Henares, Madrid, España
| | - Florencia Z Brauning
- Center for Research in Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Andreia Rosatella
- Center for Research in Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Ana María Díaz-Lanza
- Universidad de Alcalá de Henares. Facultad de Farmacia, Departamento de Ciencias Biomédicas (Área de Farmacología; Nuevos agentes antitumorales, Acción tóxica sobre células leucémicas). Ctra. Madrid-Barcelona km. 33,600 28805 Alcalá de Henares, Madrid, España
| | - Eva María Domínguez-Martín
- Center for Research in Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal; Universidad de Alcalá de Henares. Facultad de Farmacia, Departamento de Ciencias Biomédicas (Área de Farmacología; Nuevos agentes antitumorales, Acción tóxica sobre células leucémicas). Ctra. Madrid-Barcelona km. 33,600 28805 Alcalá de Henares, Madrid, España
| | - Bruno Goncalves
- Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Ahmed A Hussein
- Chemistry Department, Cape Peninsula University of Technology, Symphony Rd., Bellville 7535, South Africa
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Patricia Rijo
- Center for Research in Biosciences & Health Technologies (CBIOS), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal; Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
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Jadranin M, Savić D, Lupšić E, Podolski-Renić A, Pešić M, Tešević V, Milosavljević S, Krstić G. LC-ESI QToF MS Non-Targeted Screening of Latex Extracts of Euphorbia seguieriana ssp. seguieriana Necker and Euphorbia cyparissias and Determination of Their Potential Anticancer Activity. PLANTS (BASEL, SWITZERLAND) 2023; 12:4181. [PMID: 38140508 PMCID: PMC10747863 DOI: 10.3390/plants12244181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/22/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Euphorbia seguieriana ssp. seguieriana Necker (ES) and Euphorbia cyparissias (EC) with a habitat in the Deliblato Sands were the subject of this examination. The latexes of these so far insufficiently investigated species of the Euphorbia genus are used in traditional medicine for the treatment of wounds and warts on the skin. To determine their chemical composition, non-targeted screening of the latexes' chloroform extracts was performed using liquid chromatography coupled with quadrupole time-of-flight mass spectrometry employing an electrospray ionization source (LC-ESI QTOF MS). The analysis of the obtained results showed that the latexes of ES and EC represent rich sources of diterpenes, tentatively identified as jatrophanes, ingenanes, tiglianes, myrsinanes, premyrsinanes, and others. Examination of the anticancer activity of the ES and EC latex extracts showed that both extracts significantly inhibited the growth of the non-small cell lung carcinoma NCI-H460 and glioblastoma U87 cell lines as well as of their corresponding multi-drug resistant (MDR) cell lines, NCI-H460/R and U87-TxR. The obtained results also revealed that the ES and EC extracts inhibited the function of P-glycoprotein (P-gp) in MDR cancer cells, whose overexpression is one of the main mechanisms underlying MDR.
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Affiliation(s)
- Milka Jadranin
- University of Belgrade—Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Danica Savić
- University of Belgrade—Institute of Chemistry, Technology and Metallurgy, Department of Chemistry, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Ema Lupšić
- Department of Neurobiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11108 Belgrade, Serbia; (E.L.); (A.P.-R.); (M.P.)
| | - Ana Podolski-Renić
- Department of Neurobiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11108 Belgrade, Serbia; (E.L.); (A.P.-R.); (M.P.)
| | - Milica Pešić
- Department of Neurobiology, Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11108 Belgrade, Serbia; (E.L.); (A.P.-R.); (M.P.)
| | - Vele Tešević
- University of Belgrade—Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia; (V.T.); (S.M.)
| | - Slobodan Milosavljević
- University of Belgrade—Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia; (V.T.); (S.M.)
- Serbian Academy of Science and Arts, Kneza Mihaila 35, 11000 Belgrade, Serbia
| | - Gordana Krstić
- University of Belgrade—Faculty of Chemistry, Studentski trg 12–16, 11000 Belgrade, Serbia; (V.T.); (S.M.)
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3
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Zhang X, Peng MY, Feng EM, Li QD, Chen L, Yang HC, Guo B, Liang H, Di YT, Tang L, Yan Y. Terpenoids from Euphorbia helioscopia and Their Cytotoxic Activities against H1975 Cells. Chem Biodivers 2023; 20:e202301061. [PMID: 37800579 DOI: 10.1002/cbdv.202301061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 09/14/2023] [Indexed: 10/07/2023]
Abstract
Three previously undescribed diterpenoids, helioscopnoids A-C, and eight known compounds were isolated from the whole plants of Euphorbia helioscopia. Their structures were established by extensive analysis of spectra and data comparison with previous literatures. Among them, compound 4 was identified as 24,24-dimethoxy-25,26,27-trinoreuphan-3β-ol with revised configurations of C-13, C-14, and C-17 (13R*, 14R*, 17R*). Cytotoxicity assays revealed that all compounds exhibited varying levels of cytotoxicity against H1975 cells, with compound 9 displaying the most potent activity, as indicated by cell viability rates of 18.13 % and 20.76 % at concentrations of 20 μM and 5 μM, respectively. This study expands the understanding of E. helioscopia terpenoids' structural diversity and biological activities, contributing to the exploration of potential therapeutic applications.
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Affiliation(s)
- Xiong Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
| | - Ming-You Peng
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
| | - En-Ming Feng
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
| | - Qing-Dan Li
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
| | - Lu Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
| | - Hu-Cheng Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
- School of Medicine and Health Management, Guizhou Medical University, Guiyang, 550025, China
| | - Bing Guo
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, Guiyang, China
| | - Hong Liang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, P. R. China
| | - Ying-Tong Di
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, P. R. China
| | - Lei Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
| | - Ying Yan
- State Key Laboratory of Functions and Applications of Medicinal Plants & College of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550014, China
- School of Medicine and Health Management, Guizhou Medical University, Guiyang, 550025, China
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Liu X, Cheng Z. Microbial and chemical transformations of euphorbia factor L1 and the P-glycoprotein inhibitory activity in zebrafishes. Nat Prod Res 2023; 37:871-881. [PMID: 35776104 DOI: 10.1080/14786419.2022.2095379] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Euphorbia factor L1 (EFL1, 1) is a natural tri-ester of 6,17-epoxylathyrol with cancer multidrug resistance (MDR) reversal activity. Several EFL1 derivatives (2-9) were prepared by chemical and microbial transformations and their ability to inhibit P-glycoprotein (P-gp) activity was estimated. Six de-acylated derivatives (2-7) were obtained through base-hydrolysis of 1, and the base-catalysed hydrolysis via KOH and NaOH yielded different hydrolysed products of 1. Two biotransformed products (8-9) were directly obtained via microbial transformation of 1, and 8 was also formed by microbial conversion of the hydrolysed product 3. The P-gp modulation of 1-9 was assessed by a zebrafish model. The substrate 1 and its biotransformed product 9 as the tri-esters of lathyranes possessed the highest P-gp inhibitory activity with IC50 values of 34.97 and 15.50 µM, respectively, through down-regulating P-gp expression at the protein level rather than at MDR1 mRNA level.
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Affiliation(s)
- Xin Liu
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China
| | - Zhihong Cheng
- Department of Natural Medicine, School of Pharmacy, Fudan University, Shanghai, China
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5
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Essa AF, El-Hawary SS, Kubacy TM, El-Din A M El-Khrisy E, El-Desoky AH, Elshamy AI, Younis IY. Integration of LC/MS, NMR and Molecular Docking for Profiling of Bioactive Diterpenes from Euphorbia mauritanica L. with in Vitro Anti-SARS-CoV-2 Activity. Chem Biodivers 2023; 20:e202200918. [PMID: 36602020 DOI: 10.1002/cbdv.202200918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/06/2023]
Abstract
In spite of tremendous efforts exerted in the management of COVID-19, the absence of specific treatments and the prevalence of delayed and long-term complications termed post-COVID syndrome still urged all concerned researchers to develop a potent inhibitor of SARS-Cov-2. The hydromethanolic extracts of different parts of E. mauritanica were in vitro screened for anti-SARS-Cov-2 activity. Then, using an integrated strategy of LC/MS/MS, molecular networking and NMR, the chemical profile of the active extract was determined. To determine the optimum target for these compounds, docking experiments of the active extract's identified compounds were conducted at several viral targets. The leaves extract showed the best inhibitory effect with IC50 8.231±0.04 μg/ml. The jatrophane diterpenes were provisionally annotated as the primary metabolites of the bioactive leaves extract based on multiplex of LC/MS/MS, molecular network, and NMR. In silico studies revealed the potentiality of the compounds in the most active extract to 3CLpro, where compound 20 showed the best binding affinity. Further attention should be paid to the isolation of various jatrophane diterpenes from Euphorbia and evaluating their effects on SARS-Cov-2 and its molecular targets.
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Affiliation(s)
- Ahmed F Essa
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Seham S El-Hawary
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, 12613, Egypt
| | - Tahia M Kubacy
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Ezz El-Din A M El-Khrisy
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Ahmed H El-Desoky
- Pharmacognosy Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Abdelsamed I Elshamy
- Chemistry of Natural Compounds Department, National Research Center, 33 El Bohouth St., Dokki, Giza, 12622, Egypt
| | - Inas Y Younis
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, 12613, Egypt
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Xiao Y, Ji WS, Jin WK, Wen P, Shan LH, Hou ZR, Li XH, Zhou XL, Liu YJ, Xu JB, Gao F. Synthesis, antiproliferative and anti-MDR activities of lathyrane diterpene derivatives based on configuration inversion strategy. Bioorg Chem 2023; 131:106329. [PMID: 36565674 DOI: 10.1016/j.bioorg.2022.106329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
A series of lathyrane-type Euphorbia diterpene derivatives featured 3R configuration (H-3β) were synthesized from natural rich Euphorbia factor L3via modified Mitsunobu reaction based on configuration inversion strategy. The antiproliferation activity and MDR reversal ability of the lathyrane derivatives were evaluated, and the most synthesized compounds showed moderate or strong potencies. Among them, diterpenes 21 (IC50 values of 2.6, 5.2 and 13.1 μM, respectively) and 25 (IC50 values of 5.5, 8.6 and 1.3 μM, respectively) presented the strong cytotoxicity against MCF-7, 4 T1 and HepG2 cells. Meanwhile, derivative 25 exhibited excellent MDR reversal ability with the reversal fold of 16.1 higher than that of verapamil. The cellular thermal shift assay and molecular docking proved direct engagement of diterpene 25 to ABCB1, suggesting 25 could be a promising MDR modulator. Furthermore, the preliminary SARs of these diterpenes were also discussed.
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Affiliation(s)
- Yao Xiao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Wan-Sheng Ji
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Wen-Ke Jin
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Peng Wen
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Lian-Hai Shan
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Zong-Rui Hou
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xiao-Huan Li
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Xian-Li Zhou
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
| | - Yan-Jun Liu
- The Center of Gastrointestinal and Minimally Invasive Surgery, Department of General Surgery, The Third People's Hospital of Chengdu, The Affiliated Hospital of Southwest Jiaotong University, Chengdu 610031, PR China.
| | - Jin-Bu Xu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
| | - Feng Gao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China.
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Wang N, Xu JB, Li XH, Zhou XL, Gao F. Ir-Catalyzed Biomimetic Photoisomerization of Cyclopropane in Lathyrane-Type Euphorbia Diterpenes. Org Lett 2022; 24:8598-8602. [DOI: 10.1021/acs.orglett.2c03172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Neng Wang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Jin-Bu Xu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Xiao-Huan Li
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Xian-Li Zhou
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Feng Gao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
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8
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Zhan ZJ, Li S, Chu W, Yin S. Euphorbia diterpenoids: isolation, structure, bioactivity, biosynthesis, and synthesis (2013-2021). Nat Prod Rep 2022; 39:2132-2174. [PMID: 36111621 DOI: 10.1039/d2np00047d] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Covering: 2013 to 2021As the characteristic metabolites of Euphorbia plants, Euphorbia diterpenoids have always been a hot topic in related science communities due to their intriguing structures and broad bioactivities. In this review, we intent to provide an in-depth and extensive coverage of Euphorbia diterpenoids reported from 2013 to the end of 2021, including 997 new Euphorbia diterpenoids and 78 known ones with latest progress. Multiple aspects will be summarized, including their occurrences, chemical structures, bioactivities, and syntheses, in which the structure-activity relationship and biosynthesis of this class will be discussed for the first time.
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Affiliation(s)
- Zha-Jun Zhan
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Shen Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.
| | - Wang Chu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, P. R. China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P. R. China.
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de Padua RM, Kratz JM, Munkert J, Bertol JW, Rigotto C, Schuster D, Maltarollo VG, Kreis W, Simões CMO, Braga F. Effects of Lipophilicity and Structural Features on the Antiherpes Activity of Digitalis Cardenolides and Derivatives. Chem Biodivers 2022; 19:e202200411. [DOI: 10.1002/cbdv.202200411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 09/06/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Rodrigo Maia de Padua
- UFMG: Universidade Federal de Minas Gerais Pharmaceutical Products Av. Antônio Carlos 6627 Belo Horizonte BRAZIL
| | - Jadel Müller Kratz
- UFSC: Universidade Federal de Santa Catarina Pharmaceutical Sciences R. Delfino Conti, S/N Florianópolis BRAZIL
| | - Jennifer Munkert
- University of Erlangen-Nuernberg: Friedrich-Alexander-Universitat Erlangen-Nurnberg Division of Pharmaceutical Biology Staudtstraße 5 Erlangen GERMANY
| | - Jéssica Wildgrube Bertol
- UFSC: Universidade Federal de Santa Catarina Pharmaceutical Sciences R. Delfino Conti, S/N Florianópolis BRAZIL
| | - Caroline Rigotto
- UFSC: Universidade Federal de Santa Catarina Pharmaceutical Sciences R. Delfino Conti, S/N Florianópolis BRAZIL
| | - Daniela Schuster
- Paracelsus Medical University Salzburg: Paracelsus Medizinische Privatuniversitat Department of Pharmaceutical and Medicinal Chemistry Strubergasse 21 Salzburg AUSTRIA
| | | | - Wolfgang Kreis
- University of Erlangen-Nuernberg: Friedrich-Alexander-Universitat Erlangen-Nurnberg Division of Pharmaceutical Biology Staudtstraße 5 Erlangen GERMANY
| | | | - Fernão Braga
- Universidade Federal de Minas Gerais Pharmaceutical Sciences Av. Antônio Carlos 6627 31270901 Belo Horizonte BRAZIL
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Smajić A, Grandits M, Ecker GF. Using Jupyter Notebooks for re-training machine learning models. J Cheminform 2022; 14:54. [PMID: 35964049 PMCID: PMC9375336 DOI: 10.1186/s13321-022-00635-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2021] [Accepted: 07/31/2022] [Indexed: 11/10/2022] Open
Abstract
Machine learning (ML) models require an extensive, user-driven selection of molecular descriptors in order to learn from chemical structures to predict actives and inactives with a high reliability. In addition, privacy concerns often restrict the access to sufficient data, leading to models with a narrow chemical space. Therefore, we propose a framework of re-trainable models that can be transferred from one local instance to another, and further allow a less extensive descriptor selection. The models are shared via a Jupyter Notebook, allowing the evaluation and implementation of a broader chemical space by keeping most of the tunable parameters pre-defined. This enables the models to be updated in a decentralized, facile, and fast manner. Herein, the method was evaluated with six transporter datasets (BCRP, BSEP, OATP1B1, OATP1B3, MRP3, P-gp), which revealed the general applicability of this approach.
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Affiliation(s)
- Aljoša Smajić
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | - Melanie Grandits
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria.
| | - Gerhard F Ecker
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
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Alves ALV, da Silva LS, Faleiros CA, Silva VAO, Reis RM. The Role of Ingenane Diterpenes in Cancer Therapy: From Bioactive Secondary Compounds to Small Molecules. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221105691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Diterpenes are a class of critical taxonomic markers of the Euphorbiaceae family, representing small compounds (eg, molecules) with a wide range of biological activities and multi-target therapeutic potential. Diterpenes can exert different activities, including antitumor and multi-drug resistance-reversing activities, and antiviral, immunomodulatory, and anti-inflammatory effects, mainly due to their great structural diversity. In particular, one polycyclic skeleton has been highlighted: ingenane. Besides this natural diterpene, promising polycyclic skeletons may be submitted to chemical modification—by in silico approaches, chemical reactions, or biotransformation—putatively providing more active analogs (eg, ingenol derivatives), which are currently under pre-clinical investigation. This review outlines the current mechanisms of action and potential therapeutic implications of ingenol diterpenes as small cancer molecules.
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Affiliation(s)
- Ana Laura V. Alves
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Luciane S. da Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Camila A. Faleiros
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Viviane A. O. Silva
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
| | - Rui M. Reis
- Molecular Oncology Research Center, Barretos Cancer Hospital, Barretos, Brazil
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s - PT Government Associate Laboratory, Braga, Portugal
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12
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Pharmacological Potential of Lathyrane-Type Diterpenoids from Phytochemical Sources. Pharmaceuticals (Basel) 2022; 15:ph15070780. [PMID: 35890079 PMCID: PMC9318715 DOI: 10.3390/ph15070780] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 02/01/2023] Open
Abstract
Lathyrane diterpenoids are one of the primary types of secondary metabolites present in the genus Euphorbia and one of the largest groups of diterpenes. They are characterized by having a highly oxygenated tricyclic system of 5, 11 and 3 members. These natural products and some synthetic derivatives have shown numerous interesting biological activities with clinical potential against various diseases, such as cytotoxic activity against cancer cell lines, multi-drug resistance reversal, antiviral properties, anti-inflammatory activity and their capability to induce proliferation or differentiation into neurons of neural progenitor cells. The structure of the lathyrane skeleton could be considered privileged because its framework is able to direct functional groups in a well-defined space. The favorable arrangement of these makes interaction possible with more than one target. This review aims to highlight the evidence of lathyranes as privileged structures in medicinal chemistry. Chemical structures of bioactive compounds, the evaluation of biological properties of natural and semisynthetic derivatives, and the exploration of the mechanisms of action as well as target identification and some aspects of their targeted delivery are discussed.
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Gene discovery and virus-induced gene silencing reveal branched pathways to major classes of bioactive diterpenoids in Euphorbia peplus. Proc Natl Acad Sci U S A 2022; 119:e2203890119. [PMID: 35584121 PMCID: PMC9173813 DOI: 10.1073/pnas.2203890119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
SignificanceEuphorbia peplus, a member of the Euphorbia genus, is rich in jatrophane and ingenane diterpenoids. Using a metabolomics-guided transcriptomic approach to gene candidate identification, we have discovered a short-chain dehydrogenase gene involved in the production of the lathyrane jolkinol E. We have developed a virus-induced gene-silencing method in E. peplus that has allowed us to demonstrate the direct relationship between casbene and polycyclic diterpenoids and that jolkinol C acts as a key branch point intermediate in the production of ingenanes and jatrophanes. This work contributes both knowledge and tools for engineering production of bioactive diterpenoids in heterologous host systems, thus enabling their further evaluation and development.
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14
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Deng ZF, Bakunina I, Yu H, Han J, Dömling A, Ferreira MJU, Zhang JY. Research Progress on Natural Diterpenoids in Reversing Multidrug Resistance. Front Pharmacol 2022; 13:815603. [PMID: 35418870 PMCID: PMC8996378 DOI: 10.3389/fphar.2022.815603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/27/2022] [Indexed: 11/22/2022] Open
Abstract
Multidrug resistance (MDR) is one of the main impediments in successful chemotherapy in cancer treatment. Overexpression of ATP-binding cassette (ABC) transporter proteins is one of the most important mechanisms of MDR. Natural products have their unique advantages in reversing MDR, among which diterpenoids have attracted great attention of the researchers around the world. This review article summarizes and discusses the research progress on diterpenoids in reversing MDR.
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Affiliation(s)
- Zhuo-Fen Deng
- Key Laboratory of Molecular Target & Clinical Pharmacology, The State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Irina Bakunina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
| | - Hua Yu
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao SAR, China
| | - Jaehong Han
- Metalloenzyme Research Group and Department of Plant Science and Technology, Chung-Ang University, Anseong, Korea
| | - Alexander Dömling
- Department of Pharmacy, University of Groningen, Groningen, Netherlands
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisboa, Portugal
| | - Jian-Ye Zhang
- Key Laboratory of Molecular Target & Clinical Pharmacology, The State & NMPA Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
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15
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Wang S, Li J, Liu D, Yang T, Chen X, Li R. Ingenane and jatrophane-type diterpenoids from Euphorbia kansui with multidrug resistance reversal activity. PHYTOCHEMISTRY 2021; 188:112775. [PMID: 34015626 DOI: 10.1016/j.phytochem.2021.112775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/09/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
Bioassay-guided purification on the ethanolic extract of the roots of Euphorbia kansui Liou ex S.B.Ho (Euphorbiaceae) led to the isolation of one unreported ingenane-type (euphorksol A) and six unreported jatrophane-type (euphorksjats A-F) diterpenoids, together with twenty-five known diterpenoids. Their structures were elucidated based on extensive NMR analysis and high-resolution mass spectrometry. Euphorksol A is a rare example of an ingenane-type diterpenoid with a 6,7-expoxy fragment. All compounds were examined for cytotoxicity against adriamycin (Adr)-sensitive HepG-2 and Adr-resistant HepG-2/Adr cell lines, but none showed significant activity. Then, all isolates were evaluated for their ability to reverse multidrug resistance (MDR). 6β,7β-Epoxy-3β,4β,5β-trihydroxyl-20- deoxyingenol and 3,5,7,15-tetraacetoxy-9-nicotinoyloxy-14-oxojatropha-6(17),11-diene showed significant MDR reversal activity in HepG-2/Adr cells (reversal fold: RF = 186.4 and 143.8, respectively) versus the positive control verapamil (Ver, RF = 93.7). Euphorksol A and kansuinin B exhibited moderate MDR reversal activity (RF = 57.4 and 68.9, respectively). These compounds are the first ingenane-type diterpenoids reported to show MDR reversal activity, which will provide new insights toward the development of MDR regulatory agents.
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Affiliation(s)
- Siyi Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, China
| | - Jianchun Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, China
| | - Dan Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, China
| | - Tao Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, China
| | - Xuanqin Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, China.
| | - Rongtao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650093, China.
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16
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Reis MA, Matos AM, Duarte N, Ahmed OB, Ferreira RJ, Lage H, Ferreira MJU. Epoxylathyrane Derivatives as MDR-Selective Compounds for Disabling Multidrug Resistance in Cancer. Front Pharmacol 2020; 11:599. [PMID: 32457612 PMCID: PMC7226783 DOI: 10.3389/fphar.2020.00599] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/17/2020] [Indexed: 12/14/2022] Open
Abstract
Background Multidrug resistance (MDR) has been regarded as one of the major hurdles for the successful outcome of cancer chemotherapy. The collateral sensitivity (CS) effect is one the most auspicious anti-MDR strategies. Epoxylathyrane derivatives 1–16 were obtained by derivatization of the macrocyclic diterpene epoxyboetirane A (17), a lathyrane-type macrocyclic diterpene isolated from Euphorbia boetica. Some of these compounds were found to strongly modulate P-glycoprotein (P-gp/ABCB1) efflux. Purpose The main goal was to develop lathyrane-type macrocyclic diterpenes with improved MDR-modifying activity, by targeting more than one anti-MDR mechanism. Study design/methods In this study, the potential CS effect of compounds 1–16 was evaluated against gastric (EPG85-257), pancreatic (EPP85-181), and colon (HT-29) human cancer cells and their drug-resistant counterparts, respectively selected against mitoxantrone (EPG85-257RNOV; EPP85-181RNOV; HT-RNOV) or daunorubicin (EPG85-257RDB; EPP85-181RDB; HT-RDB). The most promising compounds (8, 15, and 16) were investigated as apoptosis inducers, using the assays annexin V/PI and active caspase-3. Results The compounds were more effective against the resistant gastric cell lines, being the CS effect more significant in EPG85-257RDB cells. Taking together the IC50 values and the CS effect, compounds 8, 15, and 16 exhibited the best results. Epoxyboetirane P (8), with the strongest MDR-selective antiproliferative activity against gastric carcinoma EPG85-257RDB cells (IC50 of 0.72 µM), being 10-fold more active against this resistant subline than in sensitive gastric carcinoma cells. The CS effect elicited by compounds 15 and 16 appeared to be by inducing apoptosis via caspase-3 activation. Structure-activity relationships of the compounds were additionally obtained through regression models to clarify the structural determinants associated to the CS effect. Conclusions This study reinforces the importance of lathyrane-type diterpenes as lead molecules for the research of MDR-modifying agents.
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Affiliation(s)
- Mariana Alves Reis
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Lisbon, Portugal
| | - Ana M Matos
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Lisbon, Portugal
| | - Noélia Duarte
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Lisbon, Portugal
| | - Omar Bauomy Ahmed
- Institute of Pathology, University Hospital Charité, Berlin, Germany
| | - Ricardo J Ferreira
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Lisbon, Portugal.,Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden
| | - Hermann Lage
- Institute of Pathology, University Hospital Charité, Berlin, Germany
| | - Maria-José U Ferreira
- Faculty of Pharmacy, Research Institute for Medicines (iMed.ULisboa), Universidade de Lisboa, Lisbon, Portugal
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17
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Yang T, Wang S, Li H, Zhao Q, Yan S, Dong M, Liu D, Chen X, Li R. Lathyrane diterpenes from Euphorbia lathyris and the potential mechanism to reverse the multi-drug resistance in HepG2/ADR cells. Biomed Pharmacother 2020; 121:109663. [DOI: 10.1016/j.biopha.2019.109663] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 11/04/2019] [Accepted: 11/07/2019] [Indexed: 01/24/2023] Open
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18
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Zhang Y, Fan RZ, Sang J, Tian YJ, Chen JQ, Tang GH, Yin S. Ingol diterpenoids as P-glycoprotein-dependent multidrug resistance (MDR) reversal agents from Euphorbia marginata. Bioorg Chem 2020; 95:103546. [DOI: 10.1016/j.bioorg.2019.103546] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/19/2019] [Accepted: 12/21/2019] [Indexed: 12/15/2022]
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19
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Wang W, Wu Y, Li C, Yang Y, Li X, Li H, Chen L. Synthesis of New Lathyrane Diterpenoid Derivatives from Euphorbia lathyris and Evaluation of Their Anti-Inflammatory Activities. Chem Biodivers 2019; 17:e1900531. [PMID: 31825561 DOI: 10.1002/cbdv.201900531] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/11/2019] [Indexed: 12/11/2022]
Abstract
Euphorbia factor L3 , a lathyrane diterpenoid extracted from Euphorbia lathyris, was found to display good anti-inflammatory activity with very low cytotoxicity. To find more potent anti-inflammatory drugs, two series of Euphorbia factor L3 derivatives with fatty and aromatic acids were designed and synthesized. Among them, lathyrane derivative 5n exhibited most potent inhibition on LPS-induced NO production in RAW264.7 cells with no obvious cytotoxicity. To determine the key characteristics of Euphorbia factor L3 derivatives that contribute to anti-inflammatory activity, we conducted a structure-activity relationship study of these compounds.
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Affiliation(s)
- Wang Wang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Yanli Wu
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Chen Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Yueying Yang
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
| | - Xingzhou Li
- National Engineering Research Center for the Emergency Drug, Beijing Institute of Pharmacology and Toxicology, Beijing, 100850, P. R. China
| | - Hua Li
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China.,Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Lixia Chen
- Wuya College of Innovation, Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, P. R. China
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20
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Li W, Tang YQ, Sang J, Fan RZ, Tang GH, Yin S. Jatrofolianes A and B: Two Highly Modified Lathyrane Diterpenoids from Jatropha gossypiifolia. Org Lett 2019; 22:106-109. [DOI: 10.1021/acs.orglett.9b04029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wei Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, People’s Republic of China
| | - Ya-Qi Tang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, People’s Republic of China
| | - Jun Sang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, People’s Republic of China
| | - Run-Zhu Fan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, People’s Republic of China
| | - Gui-Hua Tang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, People’s Republic of China
| | - Sheng Yin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, Guangdong 510006, People’s Republic of China
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21
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Su JC, Cheng W, Song JG, Zhong YL, Huang XJ, Jiang RW, Li YL, Li MM, Ye WC, Wang Y. Macrocyclic Diterpenoids from Euphorbia helioscopia and Their Potential Anti-inflammatory Activity. JOURNAL OF NATURAL PRODUCTS 2019; 82:2818-2827. [PMID: 31550154 DOI: 10.1021/acs.jnatprod.9b00519] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Guided by 1H NMR spectroscopic experiments using the aromatic protons as probes, 11 macrocyclic diterpenes (1-11) were isolated from the aerial parts of Euphorbia helioscopia. Their full three-dimensional structures, including absolute configurations, were established unambiguously by spectroscopic analysis and single-crystal X-ray crystallographic experiments. Among the isolated compounds, compound 1 is the third member thus far of a rare class of Euphorbia diterpenes featuring an unusual 5/10 fused ring system, and 2-4 are new jatrophane diterpenes. Based on the NMR data of the jatrophane diterpenes obtained in this study as well as those with crystallographic structures reported in the literature, the correlations of the chemical shifts of the relevant carbons and the configurations of C-2, C-13, and C-14 of their flexible macrocyclic ring were considered. Moreover, the anti-inflammatory activities of 1-11 were investigated by monitoring their inhibitory effects on nitric oxide production in lipopolysaccharide-stimulated RAW 264.7 cells. Compound 1 showed an IC50 of 7.4 ± 0.6 μM, which might be related to the regulation of the NF-κB signaling pathway by suppressing the translocation of the p65 subunit and the consequent reduction of IL-6 and TNF-α secretions.
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22
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Bathe U, Tissier A. Cytochrome P450 enzymes: A driving force of plant diterpene diversity. PHYTOCHEMISTRY 2019; 161:149-162. [PMID: 30733060 DOI: 10.1016/j.phytochem.2018.12.003] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 05/06/2023]
Abstract
In plant terpene biosynthesis, oxidation of the hydrocarbon backbone produced by terpene synthases is typically carried out by cytochrome P450 oxygenases (CYPs). The modifications introduced by CYPs include hydroxylations, sequential oxidations at one position and ring rearrangements and closures. These reactions significantly expand the structural diversity of terpenoids, but also provide anchoring points for further decorations by various transferases. In recent years, there has been a significant increase in reports of CYPs involved in plant terpene pathways. Plant diterpenes represent an important class of metabolites that includes hormones and a number of industrially relevant compounds such as pharmaceutical, aroma or food ingredients. In this review, we provide a comprehensive survey on CYPs reported to be involved in plant diterpene biosynthesis to date. A phylogenetic analysis showed that only few CYP clans are represented in diterpene biosynthesis, namely CYP71, CYP85 and CYP72. Remarkably few CYP families and subfamilies within those clans are involved, indicating specific expansion of these clades in plant diterpene biosynthesis. Nonetheless, the evolutionary trajectory of CYPs of specialized diterpene biosynthesis is diverse. Some are recently derived from gibberellin biosynthesis, while others have a more ancient history with recent expansions in specific plant families. Among diterpenoids, labdane-related diterpenoids represent a dominant class. The availability of CYPs from diverse plant species able to catalyze oxidations in specific regions of the labdane-related backbones provides opportunities for combinatorial biosynthesis to produce novel diterpene compounds that can be screened for biological activities of interest.
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Affiliation(s)
- Ulschan Bathe
- Department of Cell and Metabolic Biology, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Germany
| | - Alain Tissier
- Department of Cell and Metabolic Biology, Leibniz Institute of Plant Biochemistry, Weinberg 3, 06120 Halle, Germany.
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23
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Żesławska E, Kincses A, Spengler G, Nitek W, Tejchman W, Handzlik J. Pharmacophoric features for a very potent 5‐spirofluorenehydantoin inhibitor of cancer efflux pump
ABCB
1, based on X‐ray analysis. Chem Biol Drug Des 2019; 93:844-853. [DOI: 10.1111/cbdd.13473] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/19/2018] [Accepted: 12/16/2018] [Indexed: 12/01/2022]
Affiliation(s)
- Ewa Żesławska
- Department of ChemistryInstitute of BiologyPedagogical University of Cracow Kraków Poland
| | - Annamária Kincses
- Department of Medical Microbiology and ImmunobiologyFaculty of MedicineUniversity of Szeged Szeged Hungary
| | - Gabriella Spengler
- Department of Medical Microbiology and ImmunobiologyFaculty of MedicineUniversity of Szeged Szeged Hungary
| | - Wojciech Nitek
- Faculty of ChemistryJagiellonian University Kraków Poland
| | - Waldemar Tejchman
- Department of ChemistryInstitute of BiologyPedagogical University of Cracow Kraków Poland
| | - Jadwiga Handzlik
- Department of Technology and Biotechnology of DrugsJagiellonian University Medical College Kraków Poland
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The Effects of Synthetically Modified Natural Compounds on ABC Transporters. Pharmaceutics 2018; 10:pharmaceutics10030127. [PMID: 30096910 PMCID: PMC6161255 DOI: 10.3390/pharmaceutics10030127] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 12/12/2022] Open
Abstract
Multidrug resistance (MDR) is a major hurdle which must be overcome to effectively treat cancer. ATP-binding cassette transporters (ABC transporters) play pivotal roles in drug absorption and disposition, and overexpression of ABC transporters has been shown to attenuate cellular/tissue drug accumulation and thus increase MDR across a variety of cancers. Overcoming MDR is one desired approach to improving the survival rate of patients. To date, a number of modulators have been identified which block the function and/or decrease the expression of ABC transporters, thereby restoring the efficacy of a range of anticancer drugs. However, clinical MDR reversal agents have thus far proven ineffective and/or toxic. The need for new, effective, well-tolerated and nontoxic compounds has led to the development of natural compounds and their derivatives to ameliorate MDR. This review evaluates whether synthetically modifying natural compounds is a viable strategy to generate potent, nontoxic, ABC transporter inhibitors which may potentially reverse MDR.
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25
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Jatrophanes as promising multidrug resistance modulators: Advances of structure–activity relationships. Fitoterapia 2018; 127:138-145. [DOI: 10.1016/j.fitote.2018.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 02/05/2018] [Accepted: 02/10/2018] [Indexed: 11/22/2022]
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26
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Optimizing the flavanone core toward new selective nitrogen-containing modulators of ABC transporters. Future Med Chem 2018; 10:725-741. [DOI: 10.4155/fmc-2017-0228] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Aim: Naringenin (1), isolated in large amount from the aerial parts of Euphorbia pedroi, was chemically derivatized to yield 18 imine derivatives (2–19) and three alkylated derivatives through a Mannich-type reaction (20–22) that were tested as multidrug resistance (MDR) reversers in cancer cells. Results/methodology: While hydrazone (2–4) and azine (5–13) derivatives showed an improvement in their MDR reversal activities against the breast cancer resistance protein, carbohydrazides 14–19 revealed an enhancement in MDR reversal activity toward the multidrug resistance protein 1. Conclusion: The observed activities, together with pharmacophoric analysis and molecular docking studies, identified the spatial orientation of the substituents as a key structural feature toward a possible mechanism by which naringenin derivatives may reverse MDR in cancer.
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27
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Hu R, Gao J, Rozimamat R, Aisa HA. Jatrophane diterpenoids from Euphorbia sororia as potent modulators against P-glycoprotein-based multidrug resistance. Eur J Med Chem 2018; 146:157-170. [DOI: 10.1016/j.ejmech.2018.01.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/07/2018] [Accepted: 01/08/2018] [Indexed: 11/30/2022]
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28
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Paterna A, Khonkarn R, Mulhovo S, Moreno A, Madeira Girio P, Baubichon-Cortay H, Falson P, Ferreira MJU. Monoterpene indole alkaloid azine derivatives as MDR reversal agents. Bioorg Med Chem 2018; 26:421-434. [DOI: 10.1016/j.bmc.2017.11.052] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2017] [Revised: 11/27/2017] [Accepted: 11/30/2017] [Indexed: 12/31/2022]
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29
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Optimizing the macrocyclic diterpenic core toward the reversal of multidrug resistance in cancer. Future Med Chem 2017; 8:629-45. [PMID: 27105294 DOI: 10.4155/fmc.16.11] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND From a dataset obtained by chemical derivatization of a macrocyclic diterpenic scaffold, in silico approaches identified which structural features correlate with experimental modulation of P-gp activity. Results/methodology: Ninety-two percent of the strongest MDR modulators were positively identified within the dataset by virtual screening. Quantitative structure-activity relationships models with high robustness and predictability were obtained for both MDR1-transfected L5178Y mouse lymphoma T-cells (q(2) 0.875, R(2) pred 0.921) and human colon adenocarcinoma (q(2) 0.820, R(2) pred 0.951) cell lines. A new pharmacophoric model suggests that charge distribution within the molecule is important for biological activity. CONCLUSION For the studied diterpenes, the conformation of the macrocyclic scaffold and its substitution pattern are the main determinants for the biological activity, being related with steric and electrostatic factors.
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30
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Reis MA, Ahmed OB, Spengler G, Molnár J, Lage H, Ferreira MJU. Exploring Jolkinol D Derivatives To Overcome Multidrug Resistance in Cancer. JOURNAL OF NATURAL PRODUCTS 2017; 80:1411-1420. [PMID: 28421773 DOI: 10.1021/acs.jnatprod.6b01084] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Macrocyclic monoacyl lathyrane derivatives bearing a benzoyl moiety were previously found to be strong ABCB1 modulators. To explore the effects of different substituents of the aromatic moiety, 14 new compounds (1.1-1.7, 1.10, and 2.1-2.4) were prepared from jolkinol D (1), obtained from Euphorbia piscatoria, and from jolkinodiol (2), its hydrolysis derivative. Compounds 1.8 and 1.9, having aliphatic moieties, were also obtained. The reversal of ABCB1-mediated MDR was evaluated through functional and chemosensitivity assays on the human ABCB1-gene-transfected L5178Y mouse T-lymphoma cell line. Structure-activity relationships showed that addition of electron-donating groups to the aromatic moiety improved the activity. The effects on the ATPase activity of the strongest modulator (1.3) and the inactive jolkinol D (1) were also investigated and compared. Moreover, in the chemosensitivity assay, most of the compounds interacted synergistically with doxorubicin. Compounds 1.1-1.10 and 2.1-2.4 were further assessed for their collateral sensitivity effect against the human cancer cells: EPG85-257 (gastric) and EPP85-181 (pancreatic), and the matching drug-selected cells EPG85-257RDB, EPG85-257RNOV, EPP85-181RDB, and EPP85-181RNOV. The most promising ones (1.8 and 1.10) along with compound 3, previously selected, were investigated as apoptosis inducers. The compounds were able to induce apoptosis through caspase-3 activation, with significant differences being observed between the parental and resistant cells.
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Affiliation(s)
- Mariana A Reis
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Avenue Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Omar B Ahmed
- Institute of Pathology, University Hospital Charité , 10117 Berlin, Germany
| | - Gabriella Spengler
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged , Dóm tér 10, H-6720 Szeged, Hungary
| | - Joseph Molnár
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged , Dóm tér 10, H-6720 Szeged, Hungary
| | - Hermann Lage
- Institute of Pathology, University Hospital Charité , 10117 Berlin, Germany
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Avenue Prof. Gama Pinto, 1649-003 Lisbon, Portugal
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Dewanjee S, Dua TK, Bhattacharjee N, Das A, Gangopadhyay M, Khanra R, Joardar S, Riaz M, Feo VD, Zia-Ul-Haq M. Natural Products as Alternative Choices for P-Glycoprotein (P-gp) Inhibition. Molecules 2017; 22:molecules22060871. [PMID: 28587082 PMCID: PMC6152721 DOI: 10.3390/molecules22060871] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/15/2017] [Accepted: 05/15/2017] [Indexed: 11/16/2022] Open
Abstract
Multidrug resistance (MDR) is regarded as one of the bottlenecks of successful clinical treatment for numerous chemotherapeutic agents. Multiple key regulators are alleged to be responsible for MDR and making the treatment regimens ineffective. In this review, we discuss MDR in relation to P-glycoprotein (P-gp) and its down-regulation by natural bioactive molecules. P-gp, a unique ATP-dependent membrane transport protein, is one of those key regulators which are present in the lining of the colon, endothelial cells of the blood brain barrier (BBB), bile duct, adrenal gland, kidney tubules, small intestine, pancreatic ducts and in many other tissues like heart, lungs, spleen, skeletal muscles, etc. Due to its diverse tissue distribution, P-gp is a novel protective barrier to stop the intake of xenobiotics into the human body. Over-expression of P-gp leads to decreased intracellular accretion of many chemotherapeutic agents thus assisting in the development of MDR. Eventually, the effectiveness of these drugs is decreased. P-gp inhibitors act by altering intracellular ATP levels which are the source of energy and/or by affecting membrane contours to increase permeability. However, the use of synthetic inhibitors is known to cause serious toxicities. For this reason, the search for more potent and less toxic P-gp inhibitors of natural origin is underway. The present review aims to recapitulate the research findings on bioactive constituents of natural origin with P-gp inhibition characteristics. Natural bioactive constituents with P-gp modulating effects offer great potential for semi-synthetic modification to produce new scaffolds which could serve as valuable investigative tools to recognize the function of complex ABC transporters apart from evading the systemic toxicities shown by synthetic counterparts. Despite the many published scientific findings encompassing P-gp inhibitors, however, this article stand alones because it provides a vivid picture to the readers pertaining to Pgp inhibitors obtained from natural sources coupled with their mode of action and structures. It provides first-hand information to the scientists working in the field of drug discovery to further synthesise and discover new P-gp inhibitors with less toxicity and more efficacies.
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Affiliation(s)
- Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India.
| | - Tarun K Dua
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India.
| | - Niloy Bhattacharjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India.
| | - Anup Das
- Department of Pharmaceutical Technology, ADAMAS University, Barasat, Kolkata 700126, India.
| | | | - Ritu Khanra
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India.
| | - Swarnalata Joardar
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Raja S C Mullick Road, Kolkata 700032, India.
| | - Muhammad Riaz
- Department of Pharmacy, Shaheed Benazir Bhutto University, Sheringal 18050, Pakistan.
| | - Vincenzo De Feo
- Department of Pharmacy, Salerno University, Fisciano 84084, Salerno, Italy.
| | - Muhammad Zia-Ul-Haq
- Environment Science Department, Lahore College for Women University, Jail Road, Lahore 54600, Pakistan.
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Paterna A, Kincses A, Spengler G, Mulhovo S, Molnár J, Ferreira MJU. Dregamine and tabernaemontanine derivatives as ABCB1 modulators on resistant cancer cells. Eur J Med Chem 2017; 128:247-257. [DOI: 10.1016/j.ejmech.2017.01.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 01/02/2017] [Accepted: 01/28/2017] [Indexed: 02/07/2023]
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Paterna A, Gomes SE, Borralho PM, Mulhovo S, Rodrigues CMP, Ferreira MJU. (3'R)-hydroxytabernaelegantine C: A bisindole alkaloid with potent apoptosis inducing activity in colon (HCT116, SW620) and liver (HepG2) cancer cells. JOURNAL OF ETHNOPHARMACOLOGY 2016; 194:236-244. [PMID: 27616029 DOI: 10.1016/j.jep.2016.09.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 09/01/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tabernaemontana elegans Stapf. (Apocynaceae) is a medicinal plant traditionally used in African countries to treat cancer. AIMS OF THE STUDY To discover new apoptosis inducing lead compounds from T. elegans and provide scientific validation of the ethnopharmacological use of this plant. MATERIALS AND METHODS Through fractionation, (3'R)-hydroxytaberanelegantine C (1), a vobasinyl-iboga bisindole alkaloid, was isolated from a cytotoxic alkaloid fraction of the methanol extract of T. elegans roots. Its structure was identified by spectroscopic methods, mainly 1D and 2D NMR experiments. Compound 1 was evaluated for its ability to induce apoptosis in HCT116 and SW620 colon and HepG2 liver carcinoma cells. The cell viability of compound 1 was evaluated by the MTS and lactate dehydrogenase (LDH) assays. Induction of apoptosis was analyzed through Guava ViaCount assay, by flow cytometry, caspase-3/7 activity assays and evaluation of nuclear morphology by Hoechst staining. To determine the molecular pathways elicited by 1 exposure, immunoblot analysis was also performed. RESULTS (3'R)-hydroxytaberanelegantine C (1) displayed strong apoptosis induction activity as compared to 5-fluorouracil (5-FU), the most used anticancer agent in colorectal cancer treatment. In the MTS assay, compound 1 exhibited IC50 values similar or lower than 5-FU in the three cell lines tested. The IC50 value of 1 was also calculated in CCD18co normal human colon fibroblasts. The lactate dehydrogenase assay showed increased LDH release by compound 1, and the Guava ViaCount assay revealed that 1 significantly increased the incidence of apoptosis to a further extent than 5-FU. Moreover, the induction of apoptosis was corroborated by evaluation of nuclear morphology by Hoechst staining and caspase-3/7 activity assays of 1 treated cells. As expected, in immunoblot analysis, compound 1 treatment led to poly(ADP-ribose) polymerase cleavage. This was accompanied by decreased anti-apoptotic proteins Bcl-2 and XIAP steady state levels in all three cancer cell lines tested. CONCLUSIONS Compound 1 showed remarkable induction of apoptosis in HCT116, SW620 and HepG2 cells. Together, the results suggest that compound 1 is a promising lead structure for inducing apoptosis.
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Affiliation(s)
- Angela Paterna
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Sofia E Gomes
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Pedro M Borralho
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Silva Mulhovo
- Centro de Estudos Moçambicanos e de Etnociências (CEMEC), Faculty of Natural Sciences and Mathematics, Pedagogical University, 21402161 Maputo, Mozambique.
| | - Cecília M P Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
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Gherbovet O, García Alvarez MC, Bignon J, Roussi F. Original Vinca Derivatives: From P-Glycoprotein Substrates to P-Glycoprotein Inhibitors. J Med Chem 2016; 59:10774-10780. [DOI: 10.1021/acs.jmedchem.6b00525] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Olga Gherbovet
- Centre de Recherche de Gif,
Institut de Chimie des Substances Naturelles, UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - María Concepción García Alvarez
- Centre de Recherche de Gif,
Institut de Chimie des Substances Naturelles, UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Jérôme Bignon
- Centre de Recherche de Gif,
Institut de Chimie des Substances Naturelles, UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
| | - Fanny Roussi
- Centre de Recherche de Gif,
Institut de Chimie des Substances Naturelles, UPR 2301 du CNRS, Université Paris-Saclay, 1 Avenue de la Terrasse, 91198, Gif-sur-Yvette Cedex, France
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Esposito M, Nothias LF, Nedev H, Gallard JF, Leyssen P, Retailleau P, Costa J, Roussi F, Iorga BI, Paolini J, Litaudon M. Euphorbia dendroides Latex as a Source of Jatrophane Esters: Isolation, Structural Analysis, Conformational Study, and Anti-CHIKV Activity. JOURNAL OF NATURAL PRODUCTS 2016; 79:2873-2882. [PMID: 27786472 DOI: 10.1021/acs.jnatprod.6b00644] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
An efficient process was used to isolate six new jatrophane esters, euphodendroidins J (3), K (5), L (6), M, (8), N (10), and O (11), along with seven known diterpenoid esters, namely, euphodendroidins A (4), B (9), E (1), and F (2), jatrophane ester (7), and 3α-hydroxyterracinolides G and B (12 and 13), and terracinolides J and C (14 and 15) from the latex of Euphorbia dendroides. Their 2D structures and relative configurations were established by extensive NMR spectroscopic analysis. The absolute configurations of compounds 1, 11, and 15 were determined by X-ray diffraction analysis. Euphodendroidin F (2) was obtained in 18% yield from the diterpenoid ester-enriched extract after two consecutive flash chromatography steps, making it an interesting starting material for chemical synthesis. Euphodendroidins K and L (5 and 6) showed an unprecedented NMR spectroscopic behavior, which was investigated by variable-temperature NMR experiments and molecular modeling. The structure-conformation relationships study of compounds 1, 5, and 6, using DFT-NMR calculations, indicated the prominent role of the acylation pattern in governing the conformational behavior of these jatrophane esters. The antiviral activity of compounds 1-15 was evaluated against Chikungunya virus (CHIKV) replication.
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Affiliation(s)
- Mélissa Esposito
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250, Corte, France
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Louis-Félix Nothias
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250, Corte, France
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Hirsto Nedev
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Jean-François Gallard
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Pieter Leyssen
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research, KU Leuven , 3000 Leuven, Belgium
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Jean Costa
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250, Corte, France
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Bogdan I Iorga
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
| | - Julien Paolini
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250, Corte, France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS, ICSN UPR 2301, University of Paris-Saclay , 91198, Gif-sur-Yvette, France
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Dal Piaz F, Vera Saltos MB, Franceschelli S, Forte G, Marzocco S, Tuccinardi T, Poli G, Nejad Ebrahimi S, Hamburger M, De Tommasi N, Braca A. Drug Affinity Responsive Target Stability (DARTS) Identifies Laurifolioside as a New Clathrin Heavy Chain Modulator. JOURNAL OF NATURAL PRODUCTS 2016; 79:2681-2692. [PMID: 27704815 DOI: 10.1021/acs.jnatprod.6b00627] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Five new diterpenes (1-5) and a megastigmane derivative (6) were isolated from the aerial parts of Euphorbia laurifolia, along with several known compounds. Their structures were elucidated by NMR, MS, and ECD and by chemical methods. A chemical proteomics drug affinity responsive target stability (DARTS) approach to investigate the lathyrane diterpene 1, laurifolioside, on its putative cellular target(s) was performed. Clathrin heavy chain 1, a protein mainly involved in selective uptake of proteins, viruses, and other macromolecules at the plasma membrane of cells, was identified as the major interaction partner of compound 1. The modulation of clathrin activity by 1 was studied through microscopy, molecular docking, and molecular dynamics studies, suggesting a new activity of lathyrane diterpenes in the modulation of trafficking pathways.
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Affiliation(s)
- Fabrizio Dal Piaz
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Mariela Beatriz Vera Saltos
- Departamento de Ciencias de la Vida, Universidad de las Fuerzas Armadas , ESPE, Avenida General Rumiñahui s/n, Sangolqui, Ecuador
| | - Silvia Franceschelli
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Giovanni Forte
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Stefania Marzocco
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Tiziano Tuccinardi
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
| | - Giulio Poli
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University , G. C., Evin, Tehran, Iran
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, Department of Pharmaceutical Sciences, University of Basel , Basel, Switzerland
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno , Via Giovanni Paolo II 132, 84084 Fisciano (SA), Italy
| | - Alessandra Braca
- Dipartimento di Farmacia, Università di Pisa , Via Bonanno 33, 56126 Pisa, Italy
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King AJ, Brown GD, Gilday AD, Forestier E, Larson TR, Graham IA. A Cytochrome P450-Mediated Intramolecular Carbon-Carbon Ring Closure in the Biosynthesis of Multidrug-Resistance-Reversing Lathyrane Diterpenoids. Chembiochem 2016; 17:1593-7. [PMID: 27272333 PMCID: PMC5095812 DOI: 10.1002/cbic.201600316] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Indexed: 11/24/2022]
Abstract
The Euphorbiaceae produce a wide variety of bioactive diterpenoids. These include the lathyranes, which have received much interest due to their ability to inhibit the ABC transporters responsible for the loss of efficacy of many chemotherapy drugs. The lathyranes are also intermediates in the biosynthesis of range of other bioactive diterpenoids with potential applications in the treatment of pain, HIV and cancer. We report here a gene cluster from Jatropha curcas that contains the genes required to convert geranylgeranyl pyrophosphate into a number of diterpenoids, including the lathyranes jolkinol C and epi-jolkinol C. The conversion of casbene to the lathyranes involves an intramolecular carbon-carbon ring closure. This requires the activity of two cytochrome P450s that we propose form a 6-hydroxy-5,9-diketocasbene intermediate, which then undergoes an aldol reaction. The discovery of the P450 genes required to convert casbene to lathyranes will allow the scalable heterologous production of these potential anticancer drugs, which can often only be sourced in limited quantities from their native plant.
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Affiliation(s)
- Andrew J King
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, YO10 5DD, UK.
| | - Geoffrey D Brown
- Department of Chemistry, University of Reading, Whiteknights, Reading, RG6 6AD, UK
| | - Alison D Gilday
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, YO10 5DD, UK
| | - Edith Forestier
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, YO10 5DD, UK
| | - Tony R Larson
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, YO10 5DD, UK
| | - Ian A Graham
- Centre for Novel Agricultural Products, Department of Biology, University of York, Heslington, York, YO10 5DD, UK.
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Ramalhete C, Mulhovo S, Molnar J, Ferreira MJU. Triterpenoids from Momordica balsamina: Reversal of ABCB1-mediated multidrug resistance. Bioorg Med Chem 2016; 24:5061-5067. [PMID: 27591010 DOI: 10.1016/j.bmc.2016.08.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/26/2016] [Accepted: 08/18/2016] [Indexed: 01/07/2023]
Abstract
The ability as P-glycoprotein (P-gp, ABCB1) modulators of thirty (1-30) triterpenoids of the cucurbitane-type was evaluated on human L5178 mouse T-lymphoma cell line transfected with the human MDR1 gene, through the rhodamine-123 exclusion assay. Compounds (1-26, and 29, 30) were previously obtained from the African medicinal plant Momordica balsamina, through both isolation (1-15) and molecular derivatization (16-26 and 29, 30). Compounds 27-28 are two new karavilagenin C (34) derivatives having succinic acid moieties. Apart from 4, 6, 8, 10 and 11, most of the isolated compounds (1-15) displayed strong MDR reversing activity in a dose-dependent mode, exhibiting a many-fold activity when compared with verapamil, used as positive control. At the lowest concentration tested, compounds 2 and 7 were the most active. However, a decrease of activity was found for the acyl derivatives (16-30). In a chemosensitivity assay, the MDR reversing activity of some of the most active compounds (1-3, 5, 7, 12-15) was further assessed on the same cell model. All the tested compounds, excepting 15, corroborated the results of the transport assay, revealing to synergistically interact with doxorubicin. Structure-activity relationship studies, taking into account previous results, showed that different substitution patterns, at both the tetracyclic nucleus and the side chain, play important role in ABCB1 reversal activity. An optimal lipophilicity was also recognized.
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Affiliation(s)
- Cátia Ramalhete
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Silva Mulhovo
- Centro de Estudos Moçambicanos e de Etnociências, Faculty of Natural Sciences and Mathematics, Pedagogical University, 21402161 Maputo, Mozambique
| | - Joseph Molnar
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
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Reis MA, Ahmed OB, Spengler G, Molnár J, Lage H, Ferreira MJU. Jatrophane diterpenes and cancer multidrug resistance - ABCB1 efflux modulation and selective cell death induction. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:968-978. [PMID: 27387405 DOI: 10.1016/j.phymed.2016.05.007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 05/04/2016] [Accepted: 05/21/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Modulation of P-glycoprotein (ABCB1) and evaluation of the collateral sensitivity effect are among the most promising approaches to overcome multidrug resistance (MDR) in cancer. In a previous study, two rare 12,17-cyclojatrophanes (1-2) and other novel jatrophanes (3-4), isolated from Euphorbia welwitschii, were screened for collateral sensitivity effect. Herein, the isolation of another jatrophane (5) is presented, being the broader goal of this work to investigate the role of euphowelwitschines A (1) and B (2), welwitschene (3), epoxywelwitschene (4) and esulatin M (5) as ABCB1 modulators and/or collateral sensitivity agents. METHODS Compounds 1-5 were evaluated for ABCB1 modulation ability through combination of transport and chemosensitivity assays, using a mouse T-lymphoma MDR1-transfected cell model. Moreover, the nature of interaction of compound 4 with ABCB1 was studied, using an ATPase assay. The MDR-selective antiproliferative activity of compound 5 was evaluated against gastric (EPG85-257) and pancreatic (EPP85-181) human cancer cells and their drug-selected counterparts (EPG85-257RDB, EPG85-257RNOV, EPP85-181RDB, EPP85-181RNOV). The drug induced cell death was investigated for compounds 4 and 5, using the annexin V/PI staining and the active caspase-3 assay. RESULTS The jatrophanes 1-5 were able to modulate the efflux activity of ABCB1, and at 2µM, 3-5 maintained the strong modulator profile. Structure activity results indicated that high conformational flexibility of the twelve-membered ring of compounds 3-5 favored ABCB1 modulation, in contrast to the tetracyclic scaffold of compounds 1 and 2. The effects of epoxywelwitschene (4) on the ATPase activity of ABCB1 showed it to interact with the transporter and to be able to reduce the transport of a second subtrate. Drug combination experiments also corroborated the anti-MDR potential of these diterpenes due to their synergistic interaction with doxorubicin (combination index <0.7). Esulatin M (5) showed a strong MDR-selective antiproliferative activity against EPG85-257RDB and EPP85-181RDB cells, with IC50 of 1.8 and 4.8 µM, respectively. Compounds 4 and 5 induced apoptosis via caspase-3 activation. A significant discrimination was observed between the resistant cell lines and parental cells. CONCLUSIONS This study strengthens the role of jatrophane diterpenes as lead candidates for the development of MDR reversal agents, higlighting the action of compounds 4 and 5.
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Affiliation(s)
- Mariana Alves Reis
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenue Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
| | - Omar Bauomy Ahmed
- Institute of Pathology, University Hospital Charité, 10117 Berlin, Germany.
| | - Gabriella Spengler
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary.
| | - Joseph Molnár
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged, Dóm tér 10, H-6720 Szeged, Hungary.
| | - Hermann Lage
- Institute of Pathology, University Hospital Charité, 10117 Berlin, Germany; Department of Pathology, Vivantes Clinics, Berlin, Germany.
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Avenue Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
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40
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Zhu J, Wang R, Lou L, Li W, Tang G, Bu X, Yin S. Jatrophane Diterpenoids as Modulators of P-Glycoprotein-Dependent Multidrug Resistance (MDR): Advances of Structure–Activity Relationships and Discovery of Promising MDR Reversal Agents. J Med Chem 2016; 59:6353-69. [DOI: 10.1021/acs.jmedchem.6b00605] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jianyong Zhu
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Ruimin Wang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Lanlan Lou
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Wei Li
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Guihua Tang
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Xianzhang Bu
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Sheng Yin
- School of Pharmaceutical
Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
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41
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Gao J, Chen QB, Liu YQ, Xin XL, Yili A, Aisa HA. Diterpenoid constituents of Euphorbia macrorrhiza. PHYTOCHEMISTRY 2016; 122:246-253. [PMID: 26706317 DOI: 10.1016/j.phytochem.2015.12.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Revised: 11/28/2015] [Accepted: 12/07/2015] [Indexed: 06/05/2023]
Abstract
Ten diterpenoids, named macrorilone A-B, macroripremyrsinone A, macrorilathyrone A-B, macrorieuphorone A-B and macroricasbalone A-C, together with ten known diterpenoids, jatrophalone, sikkimenoids A-D, jatrophodione A, latilagascenes F, jolkinol B, 15β-O-benzoyl-5α-hydroxyisolathyrol and jatrophalactone were isolated from the whole plant of Euphorbia macrorrhiza C.A. Mey. These diterpenoids belong to six skeleton-types, including jatropholane, premyrsinane, lathyrane, euphoractin, casbene and rhamnofolane diterpenoids. Their structures were elucidated by extensive analysis of 1D, 2D NMR and HRESIMS spectroscopic data. The absolute configurations of macrorilone B, macroripremyrsinone A and macrorilathyrone A were established by comparing their experimental and calculated electronic circular dichroism (ECD) spectra. Several of the isolated compounds exhibited weak cytotoxicity against the KB and KBv200 cell lines with IC50 values ranging from 21.19 to 47.87μM. Some also showed multidrug resistance (MDR) reversal activity, among which macrorilathyrone B exhibited a remarkable inhibitory effect on P-gp-mediated drug exclusion.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily B, Member 1/drug effects
- Antineoplastic Agents, Phytogenic/chemistry
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Diterpenes/chemistry
- Diterpenes/isolation & purification
- Diterpenes/pharmacology
- Drug Resistance, Multiple/drug effects
- Drugs, Chinese Herbal/chemistry
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Euphorbia/chemistry
- Inhibitory Concentration 50
- Molecular Structure
- Nuclear Magnetic Resonance, Biomolecular
- Plant Roots/chemistry
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Affiliation(s)
- Jie Gao
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Qi-Bin Chen
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; University of Chinese Academy of Sciences, Beijing 100039, PR China
| | - Yong-Qiang Liu
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Xue-Lei Xin
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Ablimiti Yili
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China
| | - Haji Akber Aisa
- The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China; State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, PR China.
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42
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Barnes EC, Kumar R, Davis RA. The use of isolated natural products as scaffolds for the generation of chemically diverse screening libraries for drug discovery. Nat Prod Rep 2016; 33:372-81. [DOI: 10.1039/c5np00121h] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This Highlight examines the use of isolated natural products as scaffolds in the semi-synthesis of drug discovery libraries, and the potential of this rarely used method to contribute to successful natural product library generation strategies.
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Affiliation(s)
- Emma C. Barnes
- Eskitis Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
- Leibniz Institute for Natural Product Research and Infection Biology HKI
| | - Rohitesh Kumar
- Eskitis Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
| | - Rohan A. Davis
- Eskitis Institute for Drug Discovery
- Griffith University
- Brisbane
- Australia
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43
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Reis MA, André V, Duarte MT, Lage H, Ferreira MJU. 12,17-Cyclojatrophane and Jatrophane Constituents of Euphorbia welwitschii. JOURNAL OF NATURAL PRODUCTS 2015; 78:2684-2690. [PMID: 26561962 DOI: 10.1021/acs.jnatprod.5b00631] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Euphowelwitschines A (1) and B (2), isolated from a methanolic extract of Euphorbia welwitschii, exhibit a rare combination of structural features in having a 5/8/8 fused-ring system and a 12,15-ether bridge. Moreover, the isolation of the additional new compounds welwitschene (3) and epoxywelwitschene (4) has provided insights into the biogenetic pathway of 12,17-cyclojatrophanes. The structures of 1-4 were determined by spectroscopic methods inclusive of 1D and 2D NMR experiments and X-ray crystallography for compounds 1 and 2. Preliminary information on the selective antiproliferative activity of compounds 1-4 is also described.
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Affiliation(s)
- Mariana A Reis
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Avenue Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Vânia André
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Avenue Rovisco Pais, 1049-001 Lisbon, Portugal
| | - M Teresa Duarte
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa , Avenue Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Hermann Lage
- Charité Campus Mitte, Institute of Pathology , D-10117 Berlin, Germany
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa , Avenue Prof. Gama Pinto, 1649-003 Lisbon, Portugal
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44
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Matos AM, Reis M, Duarte N, Spengler G, Molnár J, Ferreira MJU. Epoxylathyrol Derivatives: Modulation of ABCB1-Mediated Multidrug Resistance in Human Colon Adenocarcinoma and Mouse T-Lymphoma Cells. JOURNAL OF NATURAL PRODUCTS 2015; 78:2215-2228. [PMID: 26331763 DOI: 10.1021/acs.jnatprod.5b00370] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Epoxyboetirane A (1), a macrocyclic diterpene that was found to be inactive as an ABCB1 modulator, was submitted to several chemical transformations, aimed at generating a series of compounds with improved multidrug resistance (MDR)-modifying activity. Overall, 23 new derivatives were prepared, in addition to the already reported epoxylathyrol (2) and methoxyboetirol (3). Their anti-MDR potential was assessed through both functional and chemosensitivity assays on resistant human colon adenocarcinoma and human ABCB1-gene transfected L5178Y mouse lymphoma cells. Structure-activity relationship analysis showed that different substitution patterns led to distinct ABCB1 inhibitory activities, although intrinsic cellular characteristics seemed to influence the modulatory behavior. A considerable enhancement in MDR-modifying activity was observed for aromatic compounds in both cell lines, particularly in 3,17-disubstituted esters derived from 3, a Payne-rearranged Michael adduct of 2. All compounds tested were revealed to interact synergistically with doxorubicin, and ATPase inhibition by three representative MDR-modifying compounds was also investigated. On account of its outstanding ABCB1 inhibitory activity at 0.2 μM and overall remarkable bioactive profile, methoxyboetirane B (22) was found to be a new promising lead for MDR-reversing anticancer drug development.
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Affiliation(s)
- Ana M Matos
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa , Avenida Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Mariana Reis
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa , Avenida Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Noélia Duarte
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa , Avenida Prof. Gama Pinto, 1649-003 Lisbon, Portugal
| | - Gabriella Spengler
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged , Dóm tér 10, H-6720 Szeged, Hungary
| | - Joseph Molnár
- Department of Medical Microbiology and Immunobiology, Faculty of Medicine, University of Szeged , Dóm tér 10, H-6720 Szeged, Hungary
| | - Maria-José U Ferreira
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade de Lisboa , Avenida Prof. Gama Pinto, 1649-003 Lisbon, Portugal
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45
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Rédei D, Boros K, Forgo P, Molnár J, Kele Z, Pálinkó I, Pinke G, Hohmann J. Diterpene Constituents ofEuphorbia exiguaL. and Multidrug Resistance Reversing Activity of the Isolated Diterpenes. Chem Biodivers 2015; 12:1214-21. [DOI: 10.1002/cbdv.201400260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Indexed: 11/08/2022]
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46
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Knaus T, Mutti FG, Humphreys LD, Turner NJ, Scrutton NS. Systematic methodology for the development of biocatalytic hydrogen-borrowing cascades: application to the synthesis of chiral α-substituted carboxylic acids from α-substituted α,β-unsaturated aldehydes. Org Biomol Chem 2015; 13:223-33. [PMID: 25372591 DOI: 10.1039/c4ob02282c] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ene-reductases (ERs) are flavin dependent enzymes that catalyze the asymmetric reduction of activated carbon-carbon double bonds. In particular, α,β-unsaturated carbonyl compounds (e.g. enals and enones) as well as nitroalkenes are rapidly reduced. Conversely, α,β-unsaturated esters are poorly accepted substrates whereas free carboxylic acids are not converted at all. The only exceptions are α,β-unsaturated diacids, diesters as well as esters bearing an electron-withdrawing group in α- or β-position. Here, we present an alternative approach that has a general applicability for directly obtaining diverse chiral α-substituted carboxylic acids. This approach combines two enzyme classes, namely ERs and aldehyde dehydrogenases (Ald-DHs), in a concurrent reductive-oxidative biocatalytic cascade. This strategy has several advantages as the starting material is an α-substituted α,β-unsaturated aldehyde, a class of compounds extremely reactive for the reduction of the alkene moiety. Furthermore no external hydride source from a sacrificial substrate (e.g. glucose, formate) is required since the hydride for the first reductive step is liberated in the second oxidative step. Such a process is defined as a hydrogen-borrowing cascade. This methodology has wide applicability as it was successfully applied to the synthesis of chiral substituted hydrocinnamic acids, aliphatic acids, heterocycles and even acetylated amino acids with elevated yield, chemo- and stereo-selectivity. A systematic methodology for optimizing the hydrogen-borrowing two-enzyme synthesis of α-chiral substituted carboxylic acids was developed. This systematic methodology has general applicability for the development of diverse hydrogen-borrowing processes that possess the highest atom efficiency and the lowest environmental impact.
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Affiliation(s)
- Tanja Knaus
- Manchester Institute of Biotechnology, Faculty of Life Sciences, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
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47
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Reversal of P-glycoprotein-mediated multidrug resistance in MCF-7/Adr cancer cells by sesquiterpene coumarins. Fitoterapia 2015; 103:149-54. [DOI: 10.1016/j.fitote.2015.03.025] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 03/30/2015] [Accepted: 03/31/2015] [Indexed: 11/19/2022]
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48
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Jiao W, Wan Z, Chen S, Lu R, Chen X, Fang D, Wang J, Pu S, Huang X, Gao H, Shao H. Lathyrol Diterpenes as Modulators of P-Glycoprotein Dependent Multidrug Resistance: Structure–Activity Relationship Studies on Euphorbia Factor L3 Derivatives. J Med Chem 2015; 58:3720-38. [DOI: 10.1021/acs.jmedchem.5b00058] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Wei Jiao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Zhongmin Wan
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Shuang Chen
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Runhua Lu
- Department of Applied Chemistry, China Agricultural University, Beijing 100194, China
| | - Xiaozhen Chen
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Dongmei Fang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jiufeng Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Shengcai Pu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xin Huang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Haixiang Gao
- Department of Applied Chemistry, China Agricultural University, Beijing 100194, China
| | - Huawu Shao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
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49
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Vieira C, Duarte N, Reis MA, Spengler G, Madureira AM, Molnár J, Ferreira MJU. Improving the MDR reversal activity of 6,17-epoxylathyrane diterpenes. Bioorg Med Chem 2014; 22:6392-400. [DOI: 10.1016/j.bmc.2014.09.041] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 09/12/2014] [Accepted: 09/21/2014] [Indexed: 12/01/2022]
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50
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Ferreira RJ, Ferreira MJU, dos Santos DJVA. Reversing cancer multidrug resistance: insights into the efflux by ABC transports fromin silicostudies. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2014. [DOI: 10.1002/wcms.1196] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ricardo J. Ferreira
- Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia; Universidade de Lisboa; Lisboa Portugal
| | - Maria-José U. Ferreira
- Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia; Universidade de Lisboa; Lisboa Portugal
| | - Daniel J. V. A. dos Santos
- Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia; Universidade de Lisboa; Lisboa Portugal
- REQUIMTE, Department of Chemistry & Biochemistry, Faculty of Sciences; University of Porto; Porto Portugal
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