1
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Synthesis and structure-activity relationship study of novel 3-diethoxyphosphorylfuroquinoline-4,9-diones with potent antitumor efficacy. Eur J Med Chem 2021; 219:113429. [PMID: 33852973 DOI: 10.1016/j.ejmech.2021.113429] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/27/2021] [Accepted: 03/27/2021] [Indexed: 11/21/2022]
Abstract
Herein we report an efficient synthesis of a series of regioisomeric N,O-syn and N,O-anti 3-diethoxyphosphorylfuroquinoline-4,9-diones combining furoquinoline-5,8-dione skeleton, present in several highly cytotoxic compounds, with diethoxyphosphoryl moiety. The cytotoxic activity of the obtained analogs was tested against two human cancer cell lines: promyelocytic leukemia HL-60 and breast cancer adenocarcinoma MCF-7 and for comparison on human umbilical vein endothelial cells HUVEC and mammary gland/breast MCF-10 A cells. Several diethoxyphosphorylfuroquinoline-4,9-diones proved to be highly cytotoxic for cancer cells with IC50 values even below 0.1 μM. Interestingly, N,O-syn 3-diethoxyphosphorylfuroquinoline-4,9-diones were 3- to 7-fold more active against HL-60 cells than the respective N,O-anti regioisomers. The most promising analogs 9c and 9i, with the highest cancer/healthy cells cytotoxicity ratio, were further evaluated to establish their mode of action. In HL-60 cells these analogs enhanced intracellular ROS generation and NAD(P)H:quinone oxidoreductase 1 (NQO1) depletion which led to the cell cycle arrest in the S-phase, reduced cell proliferation, DNA damage and apoptosis.
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2
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Patel OPS, Beteck RM, Legoabe LJ. Antimalarial application of quinones: A recent update. Eur J Med Chem 2020; 210:113084. [PMID: 33333397 DOI: 10.1016/j.ejmech.2020.113084] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 12/28/2022]
Abstract
Atovaquone belongs to a naphthoquinone class of drugs and is used in combination with proguanil (Malarone) for the treatment of acute, uncomplicated malaria caused by Plasmodium falciparum (including chloroquine-resistant P. falciparum/P. vivax). Numerous quinone-derived compounds have attracted considerable attention in the last few decades due to their potential in antimalarial drug discovery. Several semi-synthetic derivatives of natural quinones, synthetic quinones (naphtho-/benzo-quinone, anthraquinones, thiazinoquinones), and quinone-based hybrids were explored for their in vitro and in vivo antimalarial activities. A careful literature survey revealed that this topic has not been compiled as a review article so far. Therefore, we herein summarise the recent discovery (the year 2009-2020) of quinone based antimalarial compounds in chronological order. This compilation would be very useful towards the exploration of novel quinone-derived compounds against malarial parasites with promising efficacy and lesser side effects.
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Affiliation(s)
- Om P S Patel
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa.
| | - Richard M Beteck
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa
| | - Lesetja J Legoabe
- Centre of Excellence for Pharmaceutical Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa.
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3
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Di X, Wang S, Oskarsson JT, Rouger C, Tasdemir D, Hardardottir I, Freysdottir J, Wang X, Molinski TF, Omarsdottir S. Bromotryptamine and Imidazole Alkaloids with Anti-inflammatory Activity from the Bryozoan Flustra foliacea. JOURNAL OF NATURAL PRODUCTS 2020; 83:2854-2866. [PMID: 33016699 DOI: 10.1021/acs.jnatprod.0c00126] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chemical investigation of the marine bryozoan Flustra foliacea collected in Iceland resulted in isolation of 13 new bromotryptamine alkaloids, flustramines Q-W (1-7) and flustraminols C-H (8-13), and two new imidazole alkaloids, flustrimidazoles A and B (14 and 15), together with 12 previously described compounds (16-27). Their structures were established by detailed spectroscopic analysis using 1D and 2D NMR and HRESIMS. Structure 2 was verified by calculations of the 13C and 1H NMR chemical shifts using density functional theory. The relative and absolute configurations of the new compounds were elucidated on the basis of coupling constant analysis, NOESY, [α]D, and ECD spectroscopic data, in addition to chemical derivatization. The compounds were tested for in vitro anti-inflammatory activity using a dendritic cell model. Eight compounds (1, 3, 5, 13, 16, 18, 26, and 27) decreased dendritic cell secretion of the pro-inflammatory cytokine IL-12p40, and two compounds (4 and 14) increased secretion of the anti-inflammatory cytokine IL-10. Deformylflustrabromine B (27) showed the most potent anti-inflammatory effect (IC50 2.9 μM). These results demonstrate that F. foliacea from Iceland expresses a broad range of brominated alkaloids, many without structural precedents. The potent anti-inflammatory activity in vitro of metabolite 27 warrants further investigations into its potential as a lead for inflammation-related diseases.
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Affiliation(s)
- Xiaxia Di
- Faculty of Pharmaceutical Sciences, University of Iceland, IS-107 Reykjavik, Iceland
| | - Shuqi Wang
- Faculty of Pharmaceutical Science, Shandong University, 250012 Jinan, China
| | - Jon T Oskarsson
- Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland
| | - Caroline Rouger
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Marine Natural Products Chemistry Research Unit, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106 Kiel, Germany
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology (GEOMAR-Biotech), Marine Natural Products Chemistry Research Unit, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106 Kiel, Germany
- Faculty of Mathematics and Natural Sciences, Kiel University, 24118 Kiel, Germany
| | - Ingibjorg Hardardottir
- Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland
- Faculty of Medicine, Biomedical Center, University of Iceland, IS-101 Reykjavik, Iceland
| | - Jona Freysdottir
- Department of Immunology, Landspitali-The National University Hospital of Iceland, IS-101 Reykjavik, Iceland
- Faculty of Medicine, Biomedical Center, University of Iceland, IS-101 Reykjavik, Iceland
| | - Xiao Wang
- Analytical Research & Development, Merck & Co. Inc, Rahway, New Jersey 07065, United States
| | - Tadeusz F Molinski
- Department of Chemistry and Biochemistry and Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Sesselja Omarsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, IS-107 Reykjavik, Iceland
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4
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Casertano M, Menna M, Fattorusso C, Basilico N, Parapini S, Persico M, Imperatore C. Antiplasmodial Activity of p-Substituted Benzyl Thiazinoquinone Derivatives and Their Potential against Parasitic Infections. Molecules 2020; 25:molecules25071530. [PMID: 32230894 PMCID: PMC7180939 DOI: 10.3390/molecules25071530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 12/15/2022] Open
Abstract
Malaria is a life-threatening disease and, what is more, the resistance to available antimalarial drugs is a recurring problem. The resistance of Plasmodium falciparum malaria parasites to previous generations of medicines has undermined malaria control efforts and reversed gains in child survival. This paper describes a continuation of our ongoing efforts to investigate the effects against Plasmodium falciparum strains and human microvascular endothelial cells (HMEC-1) of a series of methoxy p-benzyl-substituted thiazinoquinones designed starting from a pointed antimalarial lead candidate. The data obtained from the newly tested compounds expanded the structure–activity relationships (SARs) of the thiazinoquinone scaffold, indicating that antiplasmodial activity is not affected by the inductive effect but rather by the resonance effect of the introduced group at the para position of the benzyl substituent. Indeed, the current survey was based on the evaluation of antiparasitic usefulness as well as the selectivity on mammalian cells of the tested p-benzyl-substituted thiazinoquinones, upgrading the knowledge about the active thiazinoquinone scaffold.
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Affiliation(s)
- Marcello Casertano
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy; (M.C.); (M.M.); (C.F.); (M.P.)
- Italian Malaria Network, Centro Interuniversitario di Ricerche Sulla Malaria (CIRM), Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy
| | - Marialuisa Menna
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy; (M.C.); (M.M.); (C.F.); (M.P.)
- Italian Malaria Network, Centro Interuniversitario di Ricerche Sulla Malaria (CIRM), Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy
| | - Caterina Fattorusso
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy; (M.C.); (M.M.); (C.F.); (M.P.)
- Italian Malaria Network, Centro Interuniversitario di Ricerche Sulla Malaria (CIRM), Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy
| | - Nicoletta Basilico
- Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Università di Milano, Via Pascal 36, 20133 Milan, Italy;
| | - Silvia Parapini
- Dipartimento di Scienze Biomediche per la Salute, Università di Milano, Via Pascal 36, 20133 Milan, Italy;
| | - Marco Persico
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy; (M.C.); (M.M.); (C.F.); (M.P.)
- Italian Malaria Network, Centro Interuniversitario di Ricerche Sulla Malaria (CIRM), Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy
| | - Concetta Imperatore
- Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy; (M.C.); (M.M.); (C.F.); (M.P.)
- Italian Malaria Network, Centro Interuniversitario di Ricerche Sulla Malaria (CIRM), Department of Pharmacy, University of Naples “Federico II”, Via D. Montesano 49, 80131 Napoli, Italy
- Correspondence: ; Tel.: +39-081678530
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5
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Yildirim H. Arylthio analogs of 5,8-quinolinedione: Synthesis, characterization, antibacterial, and antifungal evaluations. PHOSPHORUS SULFUR 2020. [DOI: 10.1080/10426507.2020.1723097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Hatice Yildirim
- Chemistry Department, Engineering Faculty, Istanbul University-Cerrahpasa, Avcilar, Istanbul, Turkey
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6
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Kadela-Tomanek M, Bębenek E, Chrobak E, Boryczka S. 5,8-Quinolinedione Scaffold as a Promising Moiety of Bioactive Agents. Molecules 2019; 24:E4115. [PMID: 31739496 PMCID: PMC6891355 DOI: 10.3390/molecules24224115] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/08/2019] [Accepted: 11/12/2019] [Indexed: 12/24/2022] Open
Abstract
Natural 5,8-quinolinedione antibiotics exhibit a broad spectrum of activities including anticancer, antibacterial, antifungal, and antimalarial activities. The structure-activity research showed that the 5,8-quinolinedione scaffold is responsible for its biological effect. The subject of this review report is a presentation of the pharmacological activity of synthetic 5,8-quinolinedione compounds containing different groups at C-6 and/or C-7 positions. The relationship between the activity and the mechanism of action is included if these data have been included in the original literature. The review mostly covers the period between 2000 and 2019. Previously published literature data were used to present historical points.
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Affiliation(s)
- Monika Kadela-Tomanek
- Department of Organic Chemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia, 4 Jagiellońska Str., 41-200 Sosnowiec, Poland; (E.B.); (E.C.); (S.B.)
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7
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Imperatore C, Persico M, Senese M, Aiello A, Casertano M, Luciano P, Basilico N, Parapini S, Paladino A, Fattorusso C, Menna M. Exploring the antimalarial potential of the methoxy-thiazinoquinone scaffold: Identification of a new lead candidate. Bioorg Chem 2019; 85:240-252. [DOI: 10.1016/j.bioorg.2018.12.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 12/19/2018] [Accepted: 12/22/2018] [Indexed: 10/27/2022]
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8
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Cockram PE, Smith TK. Active Natural Product Scaffolds against Trypanosomatid Parasites: A Review. JOURNAL OF NATURAL PRODUCTS 2018; 81:2138-2154. [PMID: 30234295 DOI: 10.1021/acs.jnatprod.8b00159] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Neglected tropical diseases caused by trypanosomatid parasites are a continuing and escalating problem, which devastate the less economically developed cultures in countries in which they are endemic by impairing both human and animal health. Current drugs for these diseases are regarded as out-of-date and expensive, with unacceptable side-effects and mounting parasite resistance, meaning there is an urgent need for new therapeutics. Natural products have long been a source of potent, structurally diverse bioactive molecules. Herein are reviewed natural products with reported trypanocidal activity, which have been clustered based on core structural similarities, to aid the future discovery of new trypanocidal core motifs with potential routes to synthetically accessible natural product cores suggested.
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Affiliation(s)
- Peter E Cockram
- Biomedical Sciences Research Complex , University of St Andrews , North Haugh , St Andrews , Scotland , KY16 9ST
| | - Terry K Smith
- Biomedical Sciences Research Complex , University of St Andrews , North Haugh , St Andrews , Scotland , KY16 9ST
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9
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Shang XF, Morris-Natschke SL, Yang GZ, Liu YQ, Guo X, Xu XS, Goto M, Li JC, Zhang JY, Lee KH. Biologically active quinoline and quinazoline alkaloids part II. Med Res Rev 2018; 38:1614-1660. [PMID: 29485730 DOI: 10.1002/med.21492] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 01/16/2018] [Accepted: 01/31/2018] [Indexed: 02/06/2023]
Abstract
To follow-up on our prior Part I review, this Part II review summarizes and provides updated literature on novel quinoline and quinazoline alkaloids isolated during the period of 2009-2016, together with the biological activity and the mechanisms of action of these classes of natural products. Over 200 molecules with a broad range of biological activities, including antitumor, antiparasitic and insecticidal, antibacterial and antifungal, cardioprotective, antiviral, anti-inflammatory, hepatoprotective, antioxidant, anti-asthma, antitussive, and other activities, are discussed. This survey should provide new clues or possibilities for the discovery of new and better drugs from the original naturally occurring quinoline and quinazoline alkaloids.
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Affiliation(s)
- Xiao-Fei Shang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, P.R. China.,School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Susan L Morris-Natschke
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Guan-Zhou Yang
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Ying-Qian Liu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Xiao Guo
- Tibetan Medicine Research Center of Qinghai University, Qinghai University Tibetan Medical College, Qinghai University, Xining, P.R. China
| | - Xiao-Shan Xu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Masuo Goto
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina
| | - Jun-Cai Li
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Ji-Yu Zhang
- Key Laboratory of Veterinary Pharmaceutical Development of Ministry of Agriculture, Key Laboratory of New Animal Drug Project, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, P.R. China
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, UNC Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina.,Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
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10
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Pearce AN, Kaiser M, Copp BR. Synthesis and antimalarial evaluation of artesunate-polyamine and trioxolane-polyamine conjugates. Eur J Med Chem 2017; 140:595-603. [DOI: 10.1016/j.ejmech.2017.09.040] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 09/18/2017] [Accepted: 09/20/2017] [Indexed: 12/18/2022]
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11
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Mayer AMS, Rodríguez AD, Taglialatela-Scafati O, Fusetani N. Marine Pharmacology in 2012-2013: Marine Compounds with Antibacterial, Antidiabetic, Antifungal, Anti-Inflammatory, Antiprotozoal, Antituberculosis, and Antiviral Activities; Affecting the Immune and Nervous Systems, and Other Miscellaneous Mechanisms of Action. Mar Drugs 2017; 15:md15090273. [PMID: 28850074 PMCID: PMC5618412 DOI: 10.3390/md15090273] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Revised: 08/17/2017] [Accepted: 08/21/2017] [Indexed: 12/23/2022] Open
Abstract
The peer-reviewed marine pharmacology literature from 2012 to 2013 was systematically reviewed, consistent with the 1998–2011 reviews of this series. Marine pharmacology research from 2012 to 2013, conducted by scientists from 42 countries in addition to the United States, reported findings on the preclinical pharmacology of 257 marine compounds. The preclinical pharmacology of compounds isolated from marine organisms revealed antibacterial, antifungal, antiprotozoal, antituberculosis, antiviral and anthelmitic pharmacological activities for 113 marine natural products. In addition, 75 marine compounds were reported to have antidiabetic and anti-inflammatory activities and affect the immune and nervous system. Finally, 69 marine compounds were shown to display miscellaneous mechanisms of action which could contribute to novel pharmacological classes. Thus, in 2012–2013, the preclinical marine natural product pharmacology pipeline provided novel pharmacology and lead compounds to the clinical marine pharmaceutical pipeline, and contributed significantly to potentially novel therapeutic approaches to several global disease categories.
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Affiliation(s)
- Alejandro M S Mayer
- Department of Pharmacology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA.
| | - Abimael D Rodríguez
- Molecular Sciences Research Center, University of Puerto Rico, 1390 Ponce de León Avenue, San Juan, PR 00926, USA.
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12
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Palanisamy SK, Rajendran NM, Marino A. Natural Products Diversity of Marine Ascidians (Tunicates; Ascidiacea) and Successful Drugs in Clinical Development. NATURAL PRODUCTS AND BIOPROSPECTING 2017; 7:1-111. [PMID: 28097641 PMCID: PMC5315671 DOI: 10.1007/s13659-016-0115-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
This present study reviewed the chemical diversity of marine ascidians and their pharmacological applications, challenges and recent developments in marine drug discovery reported during 1994-2014, highlighting the structural activity of compounds produced by these specimens. Till date only 5% of living ascidian species were studied from <3000 species, this study represented from family didemnidae (32%), polyclinidae (22%), styelidae and polycitoridae (11-12%) exhibiting the highest number of promising MNPs. Close to 580 compound structures are here discussed in terms of their occurrence, structural type and reported biological activity. Anti-cancer drugs are the main area of interest in the screening of MNPs from ascidians (64%), followed by anti-malarial (6%) and remaining others. FDA approved ascidian compounds mechanism of action along with other compounds status of clinical trials (phase 1 to phase 3) are discussed here in. This review highlights recent developments in the area of natural products chemistry and biotechnological approaches are emphasized.
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Affiliation(s)
- Satheesh Kumar Palanisamy
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy.
| | - N M Rajendran
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy
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13
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Bhambra AS, Edgar M, Elsegood MR, Li Y, Weaver GW, Arroo RR, Yardley V, Burrell-Saward H, Krystof V. Design, synthesis and antitrypanosomal activities of 2,6-disubstituted-4,5,7-trifluorobenzothiophenes. Eur J Med Chem 2016; 108:347-353. [DOI: 10.1016/j.ejmech.2015.11.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/23/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022]
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14
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Abstract
This review covers the literature published in 2013 for marine natural products (MNPs), with 982 citations (644 for the period January to December 2013) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1163 for 2013), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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15
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Souza MC, Padua TA, Torres ND, Costa MFDS, Facchinetti V, Gomes CRB, Souza MVN, Henriques MDG. Study of the antimalarial properties of hydroxyethylamine derivatives using green fluorescent protein transformed Plasmodium berghei. Mem Inst Oswaldo Cruz 2015; 110:560-5. [PMID: 26018449 PMCID: PMC4501421 DOI: 10.1590/0074-02760140466] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/24/2015] [Indexed: 11/22/2022] Open
Abstract
A rapid decrease in parasitaemia remains the major goal for new antimalarial drugs and thus, in vivo models must provide precise results concerning parasitaemia modulation. Hydroxyethylamine comprise an important group of alkanolamine compounds that exhibit pharmacological properties as proteases inhibitors that has already been proposed as a new class of antimalarial drugs. Herein, it was tested the antimalarial property of new nine different hydroxyethylamine derivatives using the green fluorescent protein (GFP)-expressing Plasmodium berghei strain. By comparing flow cytometry and microscopic analysis to evaluate parasitaemia recrudescence, it was observed that flow cytometry was a more sensitive methodology. The nine hydroxyethylamine derivatives were obtained by inserting one of the following radical in the para position: H, 4Cl, 4-Br, 4-F, 4-CH3, 4-OCH3, 4-NO2, 4-NH2 and 3-Br. The antimalarial test showed that the compound that received the methyl group (4-CH3) inhibited 70% of parasite growth. Our results suggest that GFP-transfected P. berghei is a useful tool to study the recrudescence of novel antimalarial drugs through parasitaemia examination by flow cytometry. Furthermore, it was demonstrated that the insertion of a methyl group at the para position of the sulfonamide ring appears to be critical for the antimalarial activity of this class of compounds.
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Affiliation(s)
- Mariana Conceição Souza
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Tatiana Almeida Padua
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Natalia Domingos Torres
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Maria Fernanda de Souza Costa
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Victor Facchinetti
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Claudia Regina Brandão Gomes
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Marcus Vinícius Nora Souza
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
| | - Maria das Graças Henriques
- Centro de Desenvolvimento Tecnológico em Saúde, Centro de Desenvolvimento Tecnológico em Saúde-Fiocruz, Rio de Janeiro, RJ, Brasil
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16
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Liew LP, Fleming JM, Longeon A, Mouray E, Florent I, Bourguet-Kondracki ML, Copp BR. Synthesis of 1-indolyl substituted β-carboline natural products and discovery of antimalarial and cytotoxic activities. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.068] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Investigation of indolglyoxamide and indolacetamide analogues of polyamines as antimalarial and antitrypanosomal agents. Mar Drugs 2014; 12:3138-60. [PMID: 24879541 PMCID: PMC4071569 DOI: 10.3390/md12063138] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 04/30/2014] [Accepted: 05/04/2014] [Indexed: 01/21/2023] Open
Abstract
Pure compound screening has previously identified the indolglyoxylamidospermidine ascidian metabolites didemnidine A and B (2 and 3) to be weak growth inhibitors of Trypanosoma brucei rhodesiense (IC50 59 and 44 μM, respectively) and Plasmodium falciparum (K1 dual drug resistant strain) (IC50 41 and 15 μM, respectively), but lacking in selectivity (L6 rat myoblast, IC50 24 μM and 25 μM, respectively). To expand the structure–activity relationship of this compound class towards both parasites, we have prepared and biologically tested a library of analogues that includes indoleglyoxyl and indoleacetic “capping acids”, and polyamines including spermine (PA3-4-3) and extended analogues PA3-8-3 and PA3-12-3. 7-Methoxy substituted indoleglyoxylamides were typically found to exhibit the most potent antimalarial activity (IC50 10–92 nM) but with varying degrees of selectivity versus the L6 rat myoblast cell line. A 6-methoxyindolglyoxylamide analogue was the most potent growth inhibitor of T.brucei (IC50 0.18 μM) identified in the study: it, however, also exhibited poor selectivity (L6 IC50 6.0 μM). There was no apparent correlation between antimalarial and anti-T. brucei activity in the series. In vivo evaluation of one analogue against Plasmodium berghei was undertaken, demonstrating a modest 20.9% reduction in parasitaemia.
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