1
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Fischle A, Lutsch M, Hübner F, Schäker-Hübner L, Schürmann L, Hansen FK, Kalinina SA. Micro-scale screening of genetically modified Fusarium fujikuroi strain extends the apicidin family. NATURAL PRODUCTS AND BIOPROSPECTING 2024; 14:51. [PMID: 39177677 PMCID: PMC11343938 DOI: 10.1007/s13659-024-00473-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2024] [Accepted: 08/13/2024] [Indexed: 08/24/2024]
Abstract
Apicidins are a class of naturally occurring cyclic tetrapeptides produced by few strains within the Fusarium genus. These secondary metabolites have gained significant attention due to their antiprotozoal activity through HDAC inhibition, thereby highlighting their potential for the treatment of malaria. Predominantly, apicidins have been isolated from Fusarium semitectum, offering a deep insight into the biosynthetic pathway responsible for their formation. A similar biosynthetic gene cluster has also been identified in the rice pathogenic fungus F. fujikuroi, leading the discovery of three additional apicidins through genetic manipulation. Routine mass spectrometric screening of these compound-producing strains revealed another metabolite structurally related to previously studied apicidins. By optimizing culture conditions and developing an effective isolation method, we obtained a highly pure substance, whose chemical structure was fully elucidated using NMR and HRMS fragmentation. Further studies were conducted to determine cytotoxicity, antimalarial activity, and HDAC inhibitory activity of this new secondary metabolite alongside the previously known apicidins. This work not only expands the apicidin class with a new member but also provides extensive insights and comparative analysis of apicidin-like substances produced by F. fujikuroi.
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Affiliation(s)
- Alica Fischle
- Institute of Food Chemistry, University of Münster, Corrensstraße 45, 48149, Münster, Germany
- Graduate School of Natural Products, Corrensstraße 43, 48149, Münster, Germany
| | - Mika Lutsch
- Institute of Food Chemistry, University of Münster, Corrensstraße 45, 48149, Münster, Germany
| | - Florian Hübner
- Institute of Food Chemistry, University of Münster, Corrensstraße 45, 48149, Münster, Germany
| | - Linda Schäker-Hübner
- Pharmaceutical Institute, Pharmaceutical and Cell Biological Chemistry, University of Bonn, An Der Immenburg 4, 53121, Bonn, Germany
| | - Lina Schürmann
- Institute of Food Chemistry, University of Münster, Corrensstraße 45, 48149, Münster, Germany
| | - Finn K Hansen
- Pharmaceutical Institute, Pharmaceutical and Cell Biological Chemistry, University of Bonn, An Der Immenburg 4, 53121, Bonn, Germany
| | - Svetlana A Kalinina
- Institute of Food Chemistry, University of Münster, Corrensstraße 45, 48149, Münster, Germany.
- Graduate School of Natural Products, Corrensstraße 43, 48149, Münster, Germany.
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2
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Cheng W, Huang Y, Gao H, Bold B, Zhang T, Yang D. Marine Natural Products as Novel Treatments for Parasitic Diseases. Handb Exp Pharmacol 2024. [PMID: 38554166 DOI: 10.1007/164_2024_712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2024]
Abstract
Parasitic diseases including malaria, leishmaniasis, and trypanosomiasis have received significant attention due to their severe health implications, especially in developing countries. Marine natural products from a vast and diverse range of marine organisms such as sponges, corals, molluscs, and algae have been found to produce unique bioactive compounds that exhibit promising potent properties, including antiparasitic, anti-Plasmodial, anti-Leishmanial, and anti-Trypanosomal activities, providing hope for the development of effective treatments. Furthermore, various techniques and methodologies have been used to investigate the mechanisms of these antiparasitic compounds. Continued efforts in the discovery and development of marine natural products hold significant promise for the future of novel treatments against parasitic diseases.
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Affiliation(s)
- Wenbing Cheng
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai, China
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, Guangxi, China
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia Engineering Technology Research Center of Germplasm Resources Conservation and Utilization, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia Autonomous Region, China
| | - Yanbing Huang
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Haijun Gao
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai, China
- Chengdu Fifth People's Hospital (Affiliated Fifth People's Hospital of Chengdu University of Traditional Chinese Medicine/The Second Clinical Medical College), Chengdu, Sichuan, China
| | - Bolor Bold
- National Center for Zoonotic Disease, Ulaanbaatar, Mongolia
| | - Ting Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention (Chinese Center for Tropical Diseases Research), NHC Key Laboratory of Parasite and Vector Biology, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, Shanghai, China.
- State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, Inner Mongolia Engineering Technology Research Center of Germplasm Resources Conservation and Utilization, School of Life Sciences, Inner Mongolia University, Hohhot, Inner Mongolia Autonomous Region, China.
| | - Dengfeng Yang
- Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynthesis Chemistry, Guangxi Academy of Marine Sciences, Guangxi Academy of Sciences, Nanning, Guangxi, China
- College of Food and Quality Engineering, Nanning University, Nanning, China
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3
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Ren R, Wang X, Leas DA, Scheurer C, Hoevel S, Cal M, Chen G, Zhong L, Katneni K, Pham T, Patil R, Sil D, Walters MJ, Schulze TT, Neville AJ, Dong Y, Wittlin S, Kaiser M, Davis PH, Charman SA, Vennerstrom JL. Antimalarial Dibenzannulated Medium-Ring Keto Lactams. ACS Infect Dis 2023; 9:1964-1980. [PMID: 37695781 PMCID: PMC10860121 DOI: 10.1021/acsinfecdis.3c00245] [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] [Indexed: 09/13/2023]
Abstract
We discovered dibenzannulated medium-ring keto lactams (11,12-dihydro-5H-dibenzo[b,g]azonine-6,13-diones) as a new antimalarial chemotype. Most of these had chromatographic LogD7.4 values ranging from <0 to 3 and good kinetic solubilities (12.5 to >100 μg/mL at pH 6.5). The more polar compounds in the series (LogD7.4 values of <2) had the best metabolic stability (CLint values of <50 μL/min/mg protein in human liver microsomes). Most of the compounds had relatively low cytotoxicity, with IC50 values >30 μM, and there was no correlation between antiplasmodial activity and cytotoxicity. The four most potent compounds had Plasmodium falciparum IC50 values of 4.2 to 9.4 nM and in vitro selectivity indices of 670 to >12,000. They were more than 4 orders-of-magnitude less potent against three other protozoal pathogens (Trypanosoma brucei rhodesiense, Trypanosoma cruzi, and Leishmania donovani) but did have relatively high potency against Toxoplasma gondii, with IC50 values ranging from 80 to 200 nM. These keto lactams are converted into their poorly soluble 4(1H)-quinolone transannular condensation products in vitro in culture medium and in vivo in mouse blood. The similar antiplasmodial potencies of three keto lactam-quinolone pairs suggest that the quinolones likely contribute to the antimalarial activity of the lactams.
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Affiliation(s)
- Rongguo Ren
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Xiaofang Wang
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Derek A Leas
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Christian Scheurer
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Kreuzstrasse 2, CH-4123 Allschwil, Switzerland
- University of Basel, CH-4003 Basel, Switzerland
| | - Sarah Hoevel
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Kreuzstrasse 2, CH-4123 Allschwil, Switzerland
- University of Basel, CH-4003 Basel, Switzerland
| | - Monica Cal
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Kreuzstrasse 2, CH-4123 Allschwil, Switzerland
- University of Basel, CH-4003 Basel, Switzerland
| | - Gong Chen
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Longjin Zhong
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Kasiram Katneni
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Thao Pham
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Rahul Patil
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Diptesh Sil
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Matthias J Walters
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge St., Omaha, Nebraska 68182, United States
| | - Thomas T Schulze
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge St., Omaha, Nebraska 68182, United States
- Department of Pathology and Microbiology, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, Nebraska 68198-5900, United States
| | - Andrew J Neville
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge St., Omaha, Nebraska 68182, United States
| | - Yuxiang Dong
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Sergio Wittlin
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Kreuzstrasse 2, CH-4123 Allschwil, Switzerland
- University of Basel, CH-4003 Basel, Switzerland
| | - Marcel Kaiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Kreuzstrasse 2, CH-4123 Allschwil, Switzerland
- University of Basel, CH-4003 Basel, Switzerland
| | - Paul H Davis
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge St., Omaha, Nebraska 68182, United States
| | - Susan A Charman
- Centre for Drug Candidate Optimisation, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Jonathan L Vennerstrom
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
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4
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Tawaraishi T, Ochida A, Akao Y, Itono S, Kamaura M, Akther T, Shimada M, Canan S, Chowdhury S, Cao Y, Condroski K, Engkvist O, Francisco A, Ghosh S, Kaki R, Kelly JM, Kimura C, Kogej T, Nagaoka K, Naito A, Pairaudeau G, Radu C, Roberts I, Shum D, Watanabe NA, Xie H, Yonezawa S, Yoshida O, Yoshida R, Mowbray C, Perry B. Collaborative Virtual Screening Identifies a 2-Aryl-4-aminoquinazoline Series with Efficacy in an In Vivo Model of Trypanosoma cruzi Infection. J Med Chem 2023; 66:1221-1238. [PMID: 36607408 PMCID: PMC9884087 DOI: 10.1021/acs.jmedchem.2c00775] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Probing multiple proprietary pharmaceutical libraries in parallel via virtual screening allowed rapid expansion of the structure-activity relationship (SAR) around hit compounds with moderate efficacy against Trypanosoma cruzi, the causative agent of Chagas Disease. A potency-improving scaffold hop, followed by elaboration of the SAR via design guided by the output of the phenotypic virtual screening efforts, identified two promising hit compounds 54 and 85, which were profiled further in pharmacokinetic studies and in an in vivo model of T. cruzi infection. Compound 85 demonstrated clear reduction of parasitemia in the in vivo setting, confirming the interest in this series of 2-(pyridin-2-yl)quinazolines as potential anti-trypanosome treatments.
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Affiliation(s)
- Taisuke Tawaraishi
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Atsuko Ochida
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Yuichiro Akao
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Sachiko Itono
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Masahiro Kamaura
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Thamina Akther
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Mitsuyuki Shimada
- Takeda
Pharmaceutical Company Limited, 26-1 Muraoka-Higashi 2-chrome, Fujisawa, Kanagawa 251-8555, Japan
| | - Stacie Canan
- Celgene
Corporation, Celgene Global Health, 10300 Campus Point Drive, San Diego, California 92121, United States
| | - Sanjoy Chowdhury
- TCG
Lifesciences, Plot No-7,
Salt Lake Electronics Complex, BN Block, Sector V, Kolkata 700091, India
| | - Yafeng Cao
- WuXi
AppTec Company Ltd., 666 Gaoxin Road, East Lake High-Tech Development Zone, Wuhan 430075, People’s Republic of China
| | - Kevin Condroski
- Celgene
Corporation, Celgene Global Health, 10300 Campus Point Drive, San Diego, California 92121, United States
| | - Ola Engkvist
- AstraZeneca
Discovery Sciences, R&D, Pepparedsleden 1, 431 50 Mölndal, Sweden
| | - Amanda Francisco
- London School
of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, U.K.
| | - Sunil Ghosh
- TCG
Lifesciences, Plot No-7,
Salt Lake Electronics Complex, BN Block, Sector V, Kolkata 700091, India
| | - Rina Kaki
- Shionogi
& Co., Ltd, 3-1-1,
Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
| | - John M. Kelly
- London School
of Hygiene and Tropical Medicine, Keppel Street, London WC1E 7HT, U.K.
| | - Chiaki Kimura
- Shionogi
& Co., Ltd, 3-1-1,
Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
| | - Thierry Kogej
- AstraZeneca
Discovery Sciences, R&D, Pepparedsleden 1, 431 50 Mölndal, Sweden
| | - Kazuya Nagaoka
- Eisai
Co., Ltd, 1-3, Tokodai
5-chome, Tsukuba, Ibaraki 300-2635, Japan
| | - Akira Naito
- Shionogi
& Co., Ltd, 3-1-1,
Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
| | - Garry Pairaudeau
- AstraZeneca,
Discovery Sciences, R&D, The Darwin Building, 310 Milton Road, Milton, Cambridge CB4 0WG, U.K.
| | - Constantin Radu
- Institut
Pasteur Korea, 16, Daewangpangyo-ro
712 beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Ieuan Roberts
- AstraZeneca,
Discovery Sciences, R&D, The Darwin Building, 310 Milton Road, Milton, Cambridge CB4 0WG, U.K.
| | - David Shum
- Institut
Pasteur Korea, 16, Daewangpangyo-ro
712 beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do 13488, Republic of Korea
| | - Nao-aki Watanabe
- Eisai
Co., Ltd, 1-3, Tokodai
5-chome, Tsukuba, Ibaraki 300-2635, Japan
| | - Huanxu Xie
- WuXi
AppTec Company Ltd., 666 Gaoxin Road, East Lake High-Tech Development Zone, Wuhan 430075, People’s Republic of China
| | - Shuji Yonezawa
- Shionogi
& Co., Ltd, 3-1-1,
Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
| | - Osamu Yoshida
- Shionogi
& Co., Ltd, 3-1-1,
Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
| | - Ryu Yoshida
- Shionogi
& Co., Ltd, 3-1-1,
Futaba-cho, Toyonaka-shi, Osaka 561-0825, Japan
| | - Charles Mowbray
- Drugs for Neglected
Diseases Initiative, 15 Chemin Camille Vidart, Geneva 1202, Switzerland
| | - Benjamin Perry
- Drugs for Neglected
Diseases Initiative, 15 Chemin Camille Vidart, Geneva 1202, Switzerland,
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5
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Dyshlovoy SA, Shubina LK, Makarieva TN, Hauschild J, Strewinsky N, Guzii AG, Menshov AS, Popov RS, Grebnev BB, Busenbender T, Oh-Hohenhorst SJ, Maurer T, Tilki D, Graefen M, Bokemeyer C, Stonik VA, von Amsberg G. New diterpenes from the marine sponge Spongionella sp. overcome drug resistance in prostate cancer by inhibition of P-glycoprotein. Sci Rep 2022; 12:13570. [PMID: 35945234 PMCID: PMC9363487 DOI: 10.1038/s41598-022-17447-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/26/2022] [Indexed: 01/18/2023] Open
Abstract
Spongian diterpenes are a group of marine natural compounds possessing various biological activities. However, their anticancer activity is still poorly studied and understood. We isolated six spongian diterpenes from the marine sponge Spongionella sp., including one new spongionellol A and five previously known molecules. The structures were elucidated using a detailed analysis MS and NMR spectra as well as by comparison with previously reported data. Two of them, namely, spongionellol A and 15,16-dideoxy-15α,17β-dihydroxy-15,17-oxidospongian-16-carboxylate-15,17-diacetate exhibited high activity and selectivity in human prostate cancer cells, including cells resistant to hormonal therapy and docetaxel. The mechanism of action has been identified as caspase-dependent apoptosis. Remarkably, both compounds were able to suppress expression of androgen receptor (AR) and AR-splice variant 7, as well as AR-dependent signaling. The isolated diterpenes effectively inhibited drug efflux mediated by multidrug-resistance protein 1 (MDR1; p-glycoprotein). Of note, a synergistic effect of the compounds with docetaxel, a substrate of p-glycoprotein, suggests resensitization of p-glycoprotein overexpressing cells to standard chemotherapy. In conclusion, the isolated spongian diterpenes possess high activity and selectivity towards prostate cancer cells combined with the ability to inhibit one of the main drug-resistance mechanism. This makes them promising candidates for combinational anticancer therapy.
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Affiliation(s)
- Sergey A Dyshlovoy
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany. .,Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany. .,Institute of Science-Intensive Technologies and Advanced Materials, Far Eastern Federal University, Vladivostok, Russian Federation.
| | - Larisa K Shubina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Tatyana N Makarieva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Jessica Hauschild
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Nadja Strewinsky
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Alla G Guzii
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Alexander S Menshov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Roman S Popov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Boris B Grebnev
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Tobias Busenbender
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Su Jung Oh-Hohenhorst
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Centre de Recherche du Centre hospitalier de l'Université de Montréal (CRCHUM) Et Institut du Cancer de Montréal, Montreal, QC, Canada
| | - Tobias Maurer
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Derya Tilki
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany.,Department of Urology, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Markus Graefen
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
| | - Carsten Bokemeyer
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-East Branch, Russian Academy of Sciences, Vladivostok, Russian Federation
| | - Gunhild von Amsberg
- Department of Oncology, Hematology and Bone Marrow Transplantation With Section Pneumology, Hubertus Wald Tumorzentrum-University Cancer Center Hamburg (UCCH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, Hamburg, Germany
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6
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Yu HB, Chen HY, Duan S, Zhu YP, Hu B, He Y, Cheng ST, Jiao BH, Liu XY. Bioactive Scalarane-Type Sesterterpenoids from Marine Sources. Chem Biodivers 2022; 19:e202200049. [PMID: 35393745 DOI: 10.1002/cbdv.202200049] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 04/07/2022] [Indexed: 11/11/2022]
Abstract
Scalarane-type sesterterpenoids have received considerable attention in the scientific literature due to their diverse carbon skeletons and various biological activities and pharmacological properties. Among all these derivatives are commonly isolated from marine sponges and are occasionally derived from shell-less mollusks, such as nudibranchs. This review comprehensively discusses the marine-derived natural sources that give rise to these scalarane-type sesterterpenoids, providing the names, their chemical structures, biological properties, with emphasis on anticancer activity and literature references related to these metabolites. A critical summary of the 221 compounds generated from January 2010 up to December 2021 for their potential as anticancer agents is presented.
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Affiliation(s)
- Hao-Bing Yu
- Department of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Hai-Yan Chen
- Department of Endocrinology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, P. R. China
| | - Song Duan
- Department of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Yu-Ping Zhu
- College of Basic Medical Sciences, Experimental Teaching Center, Naval Medical University, Shanghai, 200433, China
| | - Bo Hu
- Department of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Ying He
- Department of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Si-Tong Cheng
- WLSA Shanghai Academy, Shanghai, 2004333, P. R. China
| | - Bing-Hua Jiao
- Department of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
| | - Xiao-Yu Liu
- Department of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University, Xiangyin Road 800, Shanghai, 200433, P. R. China
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7
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Chaniad P, Phuwajaroanpong A, Techarang T, Viriyavejakul P, Chukaew A, Punsawad C. Antiplasmodial activity and cytotoxicity of plant extracts from the Asteraceae and Rubiaceae families. Heliyon 2022; 8:e08848. [PMID: 35141436 PMCID: PMC8814390 DOI: 10.1016/j.heliyon.2022.e08848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/01/2021] [Accepted: 01/24/2022] [Indexed: 12/02/2022] Open
Abstract
The increasing resistance of parasites to antimalarial drugs and the limited number of effective drugs are the greatest challenges in the treatment of malaria. It is necessary to search for an alternative medicine for use as a new, more effective antimalarial drug. Therefore, this study aimed to evaluate the in vitro antimalarial activity and cytotoxicity of extracts from plants belonging to the Asteraceae and Rubiaceae families. The phytoconstituents of one hundred ten ethanolic and aqueous extracts from different parts of twenty-three plant species were analyzed. Evaluation of their antimalarial activities against the chloroquine (CQ)-resistant Plasmodium falciparum (K1) strain was carried out using the lactate dehydrogenase (pLDH) assay, and their cytotoxicity in Vero cells was assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) colorimetric method. A total of 40.91% of the extracts were active antimalarial agents. Three extracts (2.73%) exhibited high antiplasmodial activity (IC50 < 10 μg/ml), twenty-four extracts (21.82%) were moderately active with IC50 values ranging from 10-50 μg/ml, and eighteen extracts (16.36%) were mildly active with IC50 values ranging from 50-100 μg/ml. The ethanolic leaf extract of Mussaenda erythrophylla (Dona Trining; Rubiaceae) exhibited the highest activity against P. falciparum, with an IC50 value of 3.73 μg/ml and a selectivity index (SI) of 30.74, followed by the ethanolic leaf extract of Mussaenda philippica Dona Luz x M. flava (Dona Marmalade; Rubiaceae) and the ethanolic leaf extract of Blumea balsamifera (Camphor Tree; Asteraceae), with IC50 values of 5.94 and 9.66 μg/ml and SI values of 25.36 and >20.70, respectively. GC-MS analysis of these three plant species revealed the presence of various compounds, such as squalene, oleic acid amide, β-sitosterol, quinic acid, phytol, oleamide, α-amyrin, sakuranin, quercetin and pillion. In conclusion, the ethanolic leaf extract of M. erythrophylla, the leaf extract of M. philippica Dona Luz x M. flava and the leaf extract of B. balsamifera had strong antimalarial properties with minimal toxicity, indicating that compounds from these plant species have the potential to be developed into new antiplasmodial agents.
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Affiliation(s)
- Prapaporn Chaniad
- Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Arisara Phuwajaroanpong
- Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Tachpon Techarang
- Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Parnpen Viriyavejakul
- Department of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Arnon Chukaew
- Chemistry Department, Faculty of Science and Technology, Suratthani Rajabhat University, Surat Tani 84100, Thailand
| | - Chuchard Punsawad
- Department of Medical Science, School of Medicine, Walailak University, Nakhon Si Thammarat 80160, Thailand
- Research Center in Tropical Pathobiology, Walailak University, Nakhon Si Thammarat 80160, Thailand
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8
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Mostafa O, Al-Shehri M, Moustafa M. Promising antiparasitic agents from marine sponges. Saudi J Biol Sci 2022; 29:217-227. [PMID: 35002412 PMCID: PMC8716901 DOI: 10.1016/j.sjbs.2021.08.068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/17/2021] [Accepted: 08/22/2021] [Indexed: 11/30/2022] Open
Abstract
Parasitic diseases especially those prevail in tropical and subtropical regions severely threaten the lives of people due to available drugs found to be ineffective as several resistant strains have been emerged. Due to the complexity of the marine environment, researchers considered it as a new field to search for compounds with therapeutic efficacy, marine sponges represents the milestone in the discovery of unique compounds of potent activities against parasitic infections. In the present article, literatures published from 2010 until March 2021 were screened to review antiparasitic potency of bioactive compounds extracted from marine sponges. 45 different genera of sponges have been studied for their antiparasitic activities. The antiparasitic activity of the crude extract or the compounds that have been isolated from marine sponges were assayed in vitro against Plasmodium falciparum, P. berghei, Trypanosoma brucei rhodesiense, T. b. brucei, T. cruzi, Leishmania donovani, L. tropica, L. infantum, L. amazonesis, L. major, L. panamesis, Haemonchus contortus and Schistosoma mansoni. The majority of antiparastic compounds extracted from marine sponges were related to alkaloids and peroxides represent the second important group of antiparasitic compounds extracted from sponges followed by terpenoids. Some substances have been extracted and used as antiparasitic agents to a lesser extent like steroids, amino acids, lipids, polysaccharides and isonitriles. The activities of these isolated compounds against parasites were screened using in vitro techniques. Compounds' potent activity in screened papers was classified in three categories according to IC50: low active or inactive, moderately active and good potent active.
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Affiliation(s)
- Osama Mostafa
- Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Mohammed Al-Shehri
- Department of Biology, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Mahmoud Moustafa
- Department of Biology, Faculty of Science, King Khalid University, Abha, Saudi Arabia.,Department of Botany and Microbiology, Faculty of Science, South Valley University, Qena, Egypt
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Tempone AG, Pieper P, Borborema SET, Thevenard F, Lago JHG, Croft SL, Anderson EA. Marine alkaloids as bioactive agents against protozoal neglected tropical diseases and malaria. Nat Prod Rep 2021; 38:2214-2235. [PMID: 34913053 PMCID: PMC8672869 DOI: 10.1039/d0np00078g] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Indexed: 01/09/2023]
Abstract
Covering: 2000 up to 2021Natural products are an important resource in drug discovery, directly or indirectly delivering numerous small molecules for potential development as human medicines. Among the many classes of natural products, alkaloids have a rich history of therapeutic applications. The extensive chemodiversity of alkaloids found in the marine environment has attracted considerable attention for such uses, while the scarcity of these natural materials has stimulated efforts towards their total synthesis. This review focuses on the biological activity of marine alkaloids (covering 2000 to up to 2021) towards Neglected Tropical Diseases (NTDs) caused by protozoan parasites, and malaria. Chemotherapy represents the only form of treatment for Chagas disease, human African trypanosomiasis, leishmaniasis and malaria, but there is currently a restricted arsenal of drugs, which often elicit severe adverse effects, show variable efficacy or resistance, or are costly. Natural product scaffolds have re-emerged as a focus of academic drug discovery programmes, offering a different resource to discover new chemical entities with new modes of action. In this review, the potential of a range of marine alkaloids is analyzed, accompanied by coverage of synthetic efforts that enable further studies of key antiprotozoal natural product scaffolds.
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Affiliation(s)
- Andre G Tempone
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil.
| | - Pauline Pieper
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK.
| | - Samanta E T Borborema
- Centre for Parasitology and Mycology, Instituto Adolfo Lutz, São Paulo, 01246-000, Brazil.
| | - Fernanda Thevenard
- Centre of Natural Sciences and Humanities, Federal University of ABC, Sao Paulo, 09210-580, Brazil
| | - Joao Henrique G Lago
- Centre of Natural Sciences and Humanities, Federal University of ABC, Sao Paulo, 09210-580, Brazil
| | - Simon L Croft
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London WC1E 7HT, UK.
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK.
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Sakyi PO, Amewu RK, Devine RNOA, Ismaila E, Miller WA, Kwofie SK. The Search for Putative Hits in Combating Leishmaniasis: The Contributions of Natural Products Over the Last Decade. NATURAL PRODUCTS AND BIOPROSPECTING 2021; 11:489-544. [PMID: 34260050 PMCID: PMC8279035 DOI: 10.1007/s13659-021-00311-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/07/2021] [Indexed: 05/12/2023]
Abstract
Despite advancements in the areas of omics and chemoinformatics, potent novel biotherapeutic molecules with new modes of actions are needed for leishmaniasis. The socioeconomic burden of leishmaniasis remains alarming in endemic regions. Currently, reports from existing endemic areas such as Nepal, Iran, Brazil, India, Sudan and Afghanistan, as well as newly affected countries such as Peru, Bolivia and Somalia indicate concerns of chemoresistance to the classical antimonial treatment. As a result, effective antileishmanial agents which are safe and affordable are urgently needed. Natural products from both flora and fauna have contributed immensely to chemotherapeutics and serve as vital sources of new chemical agents. This review focuses on a systematic cross-sectional view of all characterized anti-leishmanial compounds from natural sources over the last decade. Furthermore, IC50/EC50, cytotoxicity and suggested mechanisms of action of some of these natural products are provided. The natural product classification includes alkaloids, terpenes, terpenoids, and phenolics. The plethora of reported mechanisms involve calcium channel inhibition, immunomodulation and apoptosis. Making available enriched data pertaining to bioactivity and mechanisms of natural products complement current efforts geared towards unraveling potent leishmanicides of therapeutic relevance.
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Affiliation(s)
- Patrick O. Sakyi
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. BOX LG 56, Legon, Accra, Ghana
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Box 214, Sunyani, Ghana
| | - Richard K. Amewu
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, P. O. BOX LG 56, Legon, Accra, Ghana
| | - Robert N. O. A. Devine
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Box 214, Sunyani, Ghana
| | - Emahi Ismaila
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Box 214, Sunyani, Ghana
| | - Whelton A. Miller
- Department of Medicine, Loyola University Medical Center, Maywood, IL 60153 USA
- Department of Molecular Pharmacology and Neuroscience, Loyola University Medical Center, Maywood, IL 60153 USA
- Department of Chemical and Biomolecular Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Samuel K. Kwofie
- Department of Biomedical Engineering, School of Engineering Sciences, College of Basic & Applied Sciences, University of Ghana, PMB LG 77, Legon, Accra, Ghana
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens, College of Basic and Applied Sciences, University of Ghana, P.O. Box LG 54, Accra, Ghana
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11
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Davies-Bolorunduro O, Osuolale O, Saibu S, Adeleye I, Aminah N. Bioprospecting marine actinomycetes for antileishmanial drugs: current perspectives and future prospects. Heliyon 2021; 7:e07710. [PMID: 34409179 PMCID: PMC8361068 DOI: 10.1016/j.heliyon.2021.e07710] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 07/25/2021] [Accepted: 07/30/2021] [Indexed: 01/01/2023] Open
Abstract
Revived analysis interests in natural products in the hope of discovering new and novel antileishmanial drug leads have been driven partially by the increasing incidence of drug resistance. However, the search for novel chemotherapeutics to combat drug resistance had previously concentrated on the terrestrial environment. As a result, the marine environment was often overlooked. For example, actinomycetes are an immensely important group of bacteria for antibiotic production, producing two-thirds of the known antibiotics. However, these bacteria have been isolated primarily from terrestrial sources. Consequently, there have been revived efforts to discover new compounds from uncharted or uncommon environments like the marine ecosystem. Isolation, purification and structure elucidation of target compounds from complex metabolic extract are major challenges in natural products chemistry. As a result, marine-derived natural products from actinomycetes that have antileishmanial bioactivity potentials have been understudied. This review highlights metagenomic and bioassay approaches which could help streamline the drug discovery process thereby greatly reducing time and cost of dereplication to identify suitable antileishmanial drug candidates.
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Affiliation(s)
- O.F. Davies-Bolorunduro
- Microbiology Department, Nigerian Institute of Medical Research, Lagos, Nigeria
- Postdoc Fellow Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C, Jl. Mulyorejo, Surabaya, 60115, Indonesia
| | - O. Osuolale
- Applied Environmental Metagenomics and Infectious Diseases Research Group (AEMIDR), Department of Biological Sciences, Elizade University, Ilara Mokin, Nigeria
| | - S. Saibu
- Department of Microbiology, University of Lagos, Akoka, Lagos, Nigeria
| | - I.A. Adeleye
- Department of Microbiology, University of Lagos, Akoka, Lagos, Nigeria
| | - N.S. Aminah
- Department of Chemistry, Faculty of Science and Technology, Universitas Airlangga, Komplek Kampus C UNAIR, Jl. Mulyorejo, Surabaya, 60115, Indonesia
- Biotechnology of Tropical Medicinal Plants Research Group, Universitas Airlangga, Indonesia
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Boberg M, Cal M, Kaiser M, Jansson-Löfmark R, Mäser P, Ashton M. Enantiospecific antitrypanosomal in vitro activity of eflornithine. PLoS Negl Trop Dis 2021; 15:e0009583. [PMID: 34252098 PMCID: PMC8297939 DOI: 10.1371/journal.pntd.0009583] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 07/22/2021] [Accepted: 06/21/2021] [Indexed: 11/19/2022] Open
Abstract
The polyamine synthesis inhibitor eflornithine is a recommended treatment for the neglected tropical disease Gambian human African trypanosomiasis in late stage. This parasitic disease, transmitted by the tsetse fly, is lethal unless treated. Eflornithine is administered by repeated intravenous infusions as a racemic mixture of L-eflornithine and D-eflornithine. The study compared the in vitro antitrypanosomal activity of the two enantiomers with the racemic mixture against three Trypanosoma brucei gambiense strains. Antitrypanosomal in vitro activity at varying drug concentrations was analysed by non-linear mixed effects modelling. For all three strains, L-eflornithine was more potent than D-eflornithine. Estimated 50% inhibitory concentrations of the three strains combined were 9.1 μM (95% confidence interval [8.1; 10]), 5.5 μM [4.5; 6.6], and 50 μM [42; 57] for racemic eflornithine, L-eflornithine and D-eflornithine, respectively. The higher in vitro potency of L-eflornithine warrants further studies to assess its potential for improving the treatment of late-stage Gambian human African trypanosomiasis.
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Affiliation(s)
- Mikael Boberg
- Unit for Pharmacokinetics and Drug Metabolism, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Monica Cal
- Parasite Chemotherapy Unit, Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Marcel Kaiser
- Parasite Chemotherapy Unit, Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Rasmus Jansson-Löfmark
- Unit for Pharmacokinetics and Drug Metabolism, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- DMPK, Research and Early Development Cardiovascular, Renal and Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Pascal Mäser
- Parasite Chemotherapy Unit, Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Michael Ashton
- Unit for Pharmacokinetics and Drug Metabolism, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- * E-mail:
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Leas DA, Sanford AG, Wu J, Cal M, Kaiser M, Wittlin S, Hemsley RM, Darner EB, Lui LM, Davis PH, Vennerstrom JL. Diaryl Ureas as an Antiprotozoal Chemotype. ACS Infect Dis 2021; 7:1578-1583. [PMID: 33971090 DOI: 10.1021/acsinfecdis.1c00135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We now describe the physicochemical profiling, in vitro ADME, and antiparasitic activity of eight N,N'-diarylureas to assess their potential as a broad-spectrum antiprotozoal chemotype. Chromatographic LogD7.4 values ranged from 2.5 to 4.5; kinetic aq. solubilities were ≤6.3 μg/mL, and plasma protein binding ranged from 95 to 99%. All of the compounds had low intrinsic clearance values in human, but not mouse, liver microsomes. Although no N,N'-diarylurea had submicromolar potency against Trypanosoma cruzi, two had submicromolar potencies against Toxoplasma gondii and Trypanosoma brucei rhodesiense, and five had submicromolar potencies against Leishmania donovani. Plasmodium falciparum appeared to be the most susceptible to growth inhibition by this compound series. Most of the N,N'-diarylureas had antiprotozoal selectivities ≥10. One N,N'-diarylurea had demonstrable activity in mouse models of malaria and toxoplasmosis.
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Affiliation(s)
- Derek A. Leas
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Austin G. Sanford
- Department of Pathology & Microbiology, College of Medicine, University of Nebraska Medical Center, 985900 Nebraska Medical Center, Omaha, Nebraska 68198-5900, United States
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge Street, Omaha, Nebraska 68182, United States
| | - Jianbo Wu
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
| | - Monica Cal
- University of Basel, CH-4003 Basel, Switzerland
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, CH-4002 Basel, Switzerland
| | - Marcel Kaiser
- University of Basel, CH-4003 Basel, Switzerland
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, CH-4002 Basel, Switzerland
| | - Sergio Wittlin
- University of Basel, CH-4003 Basel, Switzerland
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, CH-4002 Basel, Switzerland
| | - Ryan M. Hemsley
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge Street, Omaha, Nebraska 68182, United States
| | - Elyssa B. Darner
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge Street, Omaha, Nebraska 68182, United States
| | - LeeAnna M. Lui
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge Street, Omaha, Nebraska 68182, United States
| | - Paul H. Davis
- Department of Biology, University of Nebraska at Omaha, 6001 Dodge Street, Omaha, Nebraska 68182, United States
| | - Jonathan L. Vennerstrom
- College of Pharmacy, University of Nebraska Medical Center, 986125 Nebraska Medical Center, Omaha, Nebraska 68198-6125, United States
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Pearce AN, Chen D, Edmeades LR, Cadelis MM, Troudi A, Brunel JM, Bourguet-Kondracki ML, Copp BR. Repurposing primaquine as a polyamine conjugate to become an antibiotic adjuvant. Bioorg Med Chem 2021; 38:116110. [PMID: 33831695 DOI: 10.1016/j.bmc.2021.116110] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 11/17/2022]
Abstract
In our search for new antibiotic adjuvants as a novel strategy to deal with the emergence of multi-drug resistant (MDR) bacteria, a series of succinylprimaquine-polyamine (SPQ-PA) conjugates and derivatives of a cationic amphiphilic nature have been prepared. Evaluation of these primaquine conjugates for intrinsic antimicrobial properties and the ability to restore the antibiotic activity of doxycycline identified two derivatives, SPQ-PA3-8-3 and SPQ-PA3-10-3 that exhibited intrinsic activity against the Gram-positive bacteria Staphylococcus aureus and the yeast Cryptococcus neoformans. None of the analogues were active against the Gram-negative bacterium Pseudomonas aeruginosa. However, in the presence of a sub-therapeutic amount of doxycycline (4.5 µM), both SPQ-PA3-4-3 and SPQ-PA3-10-3 compounds displayed potent antibiotic adjuvant properties against P. aeruginosa, with MIC's of 6.25 µM. A series of derivatives were prepared to investigate the structure-activity relationship that explored the influence of both a simplified aryl lipophilic substituent and variation of the length of the polyamine scaffold on observed intrinsic antimicrobial properties and the ability to potentiate the action of doxycycline against P. aeruginosa.
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Affiliation(s)
- A Norrie Pearce
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Dan Chen
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Liam R Edmeades
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Melissa M Cadelis
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Azza Troudi
- UMR_MD1, U-1261, Aix Marseille Universite, INSERM, SSA, MCT, 13385 Marseille, France
| | - Jean Michel Brunel
- UMR_MD1, U-1261, Aix Marseille Universite, INSERM, SSA, MCT, 13385 Marseille, France
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle, 57 rue Cuvier (C.P. 54), 75005 Paris, France
| | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
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The Marine Natural Product Furospinulosin 1 Induces Apoptosis in MDA-MB-231 Triple Negative Breast Cancer Cell Spheroids, But Not in Cells Grown Traditionally with Longer Treatment. Mar Drugs 2021; 19:md19050249. [PMID: 33924764 PMCID: PMC8145321 DOI: 10.3390/md19050249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022] Open
Abstract
Cancer cells grown in spheroid conditions interact with each other and the extracellular matrix, providing a better representation of the in vivo environment than two-dimensional cultures and are a more clinically relevant model. A discrete screening of genetically diverse marine samples in the spheroid assay led to the identification of a novel activity for the known compound furospinulosin 1. This compound shows activity against MDA-MB-231 triple negative breast cancer cells grown as spheroids and treated for 24 or 48 h. No cytotoxicity was seen in traditional two-dimensional adherent cultures treated for a longer time (72 h). A reverse phase protein array (RPPA) confirmed the limited activity of the compound in cells grown traditionally and revealed changes in protein expression when cells are grown as spheroids that are associated with better clinical prognosis. Analysis of the RPPA data through the Broad institute’s connectivity map suggested the hypothesis that furospinulosin 1 functions as an MEK inhibitor. Analysis of the RPPA data through STRING supports the apoptosis observed. The selectivity exhibited by furospinulosin 1 for triple negative breast cancer cells only when grown as spheroids makes it an interesting compound with strong therapeutic potential that merits further study.
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Lombe BK, Feineis D, Mudogo V, Kaiser M, Bringmann G. Spirombandakamine A 3 and Cyclombandakamines A 8 and A 9, Polycyclic Naphthylisoquinoline Dimers, with Antiprotozoal Activity, from a Congolese Ancistrocladus Plant. JOURNAL OF NATURAL PRODUCTS 2021; 84:1335-1344. [PMID: 33843232 DOI: 10.1021/acs.jnatprod.1c00063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Spirombandakamine A3 (7) is only the third known naphthylisoquinoline dimer with a spiro-fused novel molecular framework and the first such representative to possess a relative trans-configuration at the two chiral centers in both tetrahydroisoquinoline subunits. It was found in the leaves of a botanically as yet unidentified Congolese Ancistrocladus plant, which is morphologically closely related to the Central African taxon Ancistrocladus ealaensis. Likewise isolated were the new cyclombandakamines A8 (8) and A9 (9), which belong to another most recently discovered type of unusual oxygen-bridged naphthylisoquinoline dimers and two previously described "open-chain" analogues, mbandakamines C (10) and D (11). The full absolute stereostructures of these compounds were assigned by combining spectroscopic, chemical, and chiroptical methods. Preliminary biomimetic investigations indicated that both spirombandakamine- and cyclombandakamine-type dimers result from the oxidation of their open-chain mbandakamine-type congeners. The new dimeric alkaloids 7-9 displayed potent growth-inhibitory activity against Plasmodium falciparum, the protozoal pathogen causing malaria, and moderate effects on Trypanosoma brucei rhodesiense, the parasite responsible for African sleeping sickness.
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Affiliation(s)
- Blaise Kimbadi Lombe
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
- Faculté des Sciences, Université de Kinshasa, B.P. 202, Kinshasa XI, Democratic Republic of the Congo
- Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Straße 50, D-44227 Dortmund, Germany
| | - Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Virima Mudogo
- Faculté des Sciences, Université de Kinshasa, B.P. 202, Kinshasa XI, Democratic Republic of the Congo
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074 Würzburg, Germany
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17
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Soroury S, Alilou M, Gelbrich T, Tabefam M, Danton O, Ebrahimi SN, Kaiser M, Hamburger M, Stuppner H, Moridi Farimani M. Unusual derivatives from Hypericum scabrum. Sci Rep 2021; 10:22181. [PMID: 33446755 PMCID: PMC7809121 DOI: 10.1038/s41598-020-79305-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 12/07/2020] [Indexed: 11/09/2022] Open
Abstract
Three new compounds (1-3) with unusual skeletons were isolated from the n-hexane extract of the air-dried aerial parts of Hypericum scabrum. Compound 1 represents the first example of an esterified polycyclic polyprenylated acylphloroglucinol that features a unique tricyclo-[4.3.1.11,4]-undecane skeleton. Compound 2 is a fairly simple MPAP, but with an unexpected cycloheptane ring decorated with prenyl substituents, and compound 3 has an unusual 5,5-spiroketal lactone core. Their structures were determined by extensive spectroscopic and spectrometric techniques (1D and 2D NMR, HRESI-TOFMS). Absolute configurations were established by ECD calculations, and the absolute structure of 2 was confirmed by a single crystal determination. Plausible biogenetic pathways of compounds 1-3 were also proposed. The in vitro antiprotozoal activity of the compounds against Trypanosoma brucei rhodesiense and Plasmodium falciparum and cytotoxicity against rat myoblast (L6) cells were determined. Compound 1 showed a moderate activity against T. brucei and P. falciparum, with IC50 values of 3.07 and 2.25 μM, respectively.
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Affiliation(s)
- Sara Soroury
- Department of Phytochemistry, Faculty of Science, Golestan University, 15759-49138, Gorgan, Iran
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, Tehran, Iran
| | - Mostafa Alilou
- Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Thomas Gelbrich
- Institute of Pharmacy, Pharmaceutical Technology, University of Innsbruck, Innrain 52c, 6020, Innsbruck, Austria
| | - Marzieh Tabefam
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, Tehran, Iran
| | - Ombeline Danton
- Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Samad N Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, Tehran, Iran
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4002, Basel, Switzerland
| | - Matthias Hamburger
- Division of Pharmaceutical Biology, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Hermann Stuppner
- Institute of Pharmacy/Pharmacognosy, Center for Molecular Biosciences Innsbruck, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Mahdi Moridi Farimani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, Evin, Tehran, Iran.
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18
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Brown RW, Abdel-Megeed AM, Keller PA, Jones AJ, Sykes ML, Kaiser M, Baell JB, Avery VM, Hyland CJT. Investigation of thiazolyl-benzothiophenamides as potential agents for African sleeping sickness. RSC Med Chem 2020; 11:1413-1422. [PMID: 34095848 PMCID: PMC8126881 DOI: 10.1039/d0md00277a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/10/2020] [Indexed: 11/21/2022] Open
Abstract
African sleeping sickness is a potentially fatal neglected disease affecting sub-Saharan Africa. High-throughput screening identified the thiazolyl-benzothiophenamide 1 to be active against the causative parasite, Trypanosoma brucei. This work establishes structure-activity relationships of 1, guiding the design of second generation derivatives. After screening against the clinically relevant species T. b. rhodesiense, the derivative 16 was identified as a suitable candidate for further investigation.
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Affiliation(s)
- Ronald W Brown
- School of Chemistry and Molecular Bioscience, and Molecular Horizons Research Institute, University of Wollongong Wollongong 2522 NSW Australia
| | - Ashraf M Abdel-Megeed
- School of Chemistry and Molecular Bioscience, and Molecular Horizons Research Institute, University of Wollongong Wollongong 2522 NSW Australia
| | - Paul A Keller
- School of Chemistry and Molecular Bioscience, and Molecular Horizons Research Institute, University of Wollongong Wollongong 2522 NSW Australia
| | - Amy J Jones
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University Brisbane Innovation Park Nathan 4111 Australia
| | - Melissa L Sykes
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University Brisbane Innovation Park Nathan 4111 Australia
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute Basel 4051 Switzerland
- University of Basel 4003 Basel Switzerland
| | - Jonathan B Baell
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University Parkville 3052 Australia
| | - Vicky M Avery
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University Brisbane Innovation Park Nathan 4111 Australia
| | - Christopher J T Hyland
- School of Chemistry and Molecular Bioscience, and Molecular Horizons Research Institute, University of Wollongong Wollongong 2522 NSW Australia
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19
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Ahamefule CS, Ezeuduji BC, Ogbonna JC, Moneke AN, Ike AC, Wang B, Jin C, Fang W. Marine Bioactive Compounds against Aspergillus fumigatus: Challenges and Future Prospects. Antibiotics (Basel) 2020; 9:E813. [PMID: 33207554 PMCID: PMC7698247 DOI: 10.3390/antibiotics9110813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 12/11/2022] Open
Abstract
With the mortality rate of invasive aspergillosis caused by Aspergillus fumigatus reaching almost 100% among some groups of patients, and with the rapidly increasing resistance of A. fumigatus to available antifungal drugs, new antifungal agents have never been more desirable than now. Numerous bioactive compounds were isolated and characterized from marine resources. However, only a few exhibited a potent activity against A. fumigatus when compared to the multitude that did against some other pathogens. Here, we review the marine bioactive compounds that display a bioactivity against A. fumigatus. The challenges hampering the discovery of antifungal agents from this rich habitat are also critically analyzed. Further, we propose strategies that could speed up an efficient discovery and broaden the dimensions of screening in order to obtain promising in vivo antifungal agents with new modes of action.
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Affiliation(s)
- Chukwuemeka Samson Ahamefule
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning 530007, Guangxi, China; (C.S.A.); (B.W.)
- College of Life Science and Technology, Guangxi University, Nanning 530005, Guangxi, China
- Department of Microbiology, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (J.C.O.); (A.N.M.); (A.C.I.)
| | | | - James C. Ogbonna
- Department of Microbiology, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (J.C.O.); (A.N.M.); (A.C.I.)
| | - Anene N. Moneke
- Department of Microbiology, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (J.C.O.); (A.N.M.); (A.C.I.)
| | - Anthony C. Ike
- Department of Microbiology, University of Nigeria, Nsukka 410001, Enugu State, Nigeria; (J.C.O.); (A.N.M.); (A.C.I.)
| | - Bin Wang
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning 530007, Guangxi, China; (C.S.A.); (B.W.)
- State Key Laboratory of Non-food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, Guangxi, China
| | - Cheng Jin
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning 530007, Guangxi, China; (C.S.A.); (B.W.)
- College of Life Science and Technology, Guangxi University, Nanning 530005, Guangxi, China
| | - Wenxia Fang
- National Engineering Research Center for Non-Food Biorefinery, Guangxi Academy of Sciences, Nanning 530007, Guangxi, China; (C.S.A.); (B.W.)
- State Key Laboratory of Non-food Biomass and Enzyme Technology, Guangxi Academy of Sciences, Nanning 530007, Guangxi, China
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20
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Cadelis MM, Li SA, Bourguet-Kondracki ML, Blanchet M, Douafer H, Brunel JM, Copp BR. Spermine Derivatives of Indole-3-carboxylic Acid, Indole-3-acetic Acid and Indole-3-acrylic Acid as Gram-Negative Antibiotic Adjuvants. ChemMedChem 2020; 16:513-523. [PMID: 33090655 DOI: 10.1002/cmdc.202000359] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/28/2020] [Indexed: 01/08/2023]
Abstract
The discovery of new antibiotic adjuvants is an attractive option for overcoming antimicrobial resistance. We have previously reported the discovery of a bis-6-bromoindolglyoxylamide derivative of spermine as being able to enhance the action of antibiotics against Gram-negative bacteria but suffers from being cytotoxic and red-blood cell haemolytic. A series of analogues was prepared exploring variation of the indolglyoxylamide unit, to include indole-3-acrylic, indole-3-acetic and indole-3-carboxylate units, and evaluated for antibiotic enhancing properties against a range of Gram-negative bacteria, and for intrinsic antimicrobial, cytotoxic and haemolytic properties. Two spermine derivatives, bearing 5-bromo-indole-3-acetic acid (17) and 5-methoxy-indole-3-acrylic acid (14) end groups were found to exhibit good to moderate antibiotic adjuvant activities for doxycycline towards the Gram-negative bacteria Pseudomonas aeruginosa, Escherichia coli and Klebsiella pneumoniae, but with more modest intrinsic antimicrobial activity and greatly reduced cytotoxic and haemolytic properties. The mechanism of action of the latter derivative identified its ability to disrupt the outer membranes of bacteria and to inhibit the AcrAB-TolC efflux pump directly or by inhibiting the proton gradient.
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Affiliation(s)
- Melissa M Cadelis
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland 1142, New Zealand
| | - Steven A Li
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland 1142, New Zealand
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes UMR 7245 CNRS Muséum National d'Histoire Naturelle, 57 rue Cuvier (C.P. 54), 75005, Paris, France
| | - Marine Blanchet
- Aix-Marseille Université, INSERM, SSA, MCT, 13385, Marseille, France
| | - Hana Douafer
- Aix-Marseille Université, INSERM, SSA, MCT, 13385, Marseille, France
| | | | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag, 92019, Auckland 1142, New Zealand
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21
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Mofidi Tabatabaei S, Moridi Farimani M, Nejad-Ebrahimi S, Salehi P. Phytochemical Study of Tanacetum Sonbolii Aerial Parts and the Antiprotozoal Activity of its Components. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2020; 19:77-83. [PMID: 32922471 PMCID: PMC7462493 DOI: 10.22037/ijpr.2020.1100951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The genus Tanacetum includes some popular endemic species of the flora of Iran, with important medicinal properties. In a project, directed at structurally interesting bioactive metabolites from Iranian endemic species, we studied Tanacetum sonbolii Mozaff. Eight compounds comprising six phenolic and two terpenoidal compounds were isolated from the ethyl acetate extract of the aerial parts of the plant by normal and reverse phase chromatography. Their structures were established mainly by 1D and 2D NMR spectroscopic techniques, including 1H-1H COSY, HSQC and HMBC methods and confirmed by comparing their NMR data with those reported in the literature. The compounds namely: 2,4-dihydroxy-6-methoxyacetophenone (1), apigenin (2), 5-desmethylsinensetin (3), 5-desmethylnobiletin (4), 8-methoxycirsilineol (5), scopoletin (6), ursolic acid (7), and β-sitosterol (8). In-vitro antiprotozoal activity of compounds 1, 3, and 5 were evaluated against Trypanosoma brucei rhodesiense, Trypanosoma cruzi, Leishmania donovani and Plasmodium falciparum parasites and also toxicity against rat myoblast (L6) cells. Compound 5 showed promising activity against T. b. rhodesiense.
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Affiliation(s)
- Sahar Mofidi Tabatabaei
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
| | - Mahdi Moridi Farimani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
| | - Samad Nejad-Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
| | - Peyman Salehi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute, Shahid Beheshti University, G. C., Evin, Tehran, Iran
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22
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Li J, Sun X, Li J, Yu F, Zhang Y, Huang X, Jiang F. The antimalarial activity of indole alkaloids and hybrids. Arch Pharm (Weinheim) 2020; 353:e2000131. [PMID: 32785974 DOI: 10.1002/ardp.202000131] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/03/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Jue‐Ying Li
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiao‐Feng Sun
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Jing‐Jing Li
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Fen Yu
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Yi Zhang
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Xiu‐Juan Huang
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Feng‐Xia Jiang
- Ultrasonography Department, The Central Hospital of Wuhan, Tongji Medical College Huazhong University of Science and Technology Wuhan China
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23
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Exploration of the Electrophilic Reactivity of the Cytotoxic Marine Alkaloid Discorhabdin C and Subsequent Discovery of a New Dimeric C-1/N-13-Linked Discorhabdin Natural Product. Mar Drugs 2020; 18:md18080404. [PMID: 32752009 PMCID: PMC7460216 DOI: 10.3390/md18080404] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 07/24/2020] [Accepted: 07/28/2020] [Indexed: 12/20/2022] Open
Abstract
The cytotoxic marine natural product discorhabdin C contains a 2,6-dibromo-cyclohexa-2,5-diene moiety, previously proposed to be a critical feature required for biological activity. We have determined that the dienone-ring of discorhabdin C is indeed electrophilic, reacting with thiol and amine nucleophiles, affording debrominated adducts. In the case of reaction with 1-aminopentane the product contains an unusual C-2/N-18 ring closed, double-hydrate moiety. This electrophilic reactivity also extends to proteins, with lysozyme-discorhabdin C adducts being detected by ESI mass spectrometry. These results prompted further examination of an extract of discorhabdin C-producing sponge, Latrunculia (Latrunculia) trivetricillata, leading to the isolation and characterisation of a new example of a C-1/N-13 linked discorhabdin dimer that shared structural similarities with the 1-aminopentane-discorhabdin C adduct. To definitively assess the influence of the dienone moiety of discorhabdin C on cytotoxicity, a semi-synthetic hydrogenation derivative was prepared, affording a didebrominated ring-closed carbinolamine that was essentially devoid of tumour cell line cytotoxicity. Antiparasitic activity was assessed for a set of 14 discorhabdin alkaloids composed of natural products and semi-synthetic derivatives. Three compounds, (-)-discorhabdin L, a dimer of discorhabdin B and the discorhabdin C hydrogenation carbinolamine, exhibited pronounced activity towards Plasmodium falciparum K1 (IC50 30–90 nM) with acceptable to excellent selectivity (selectivity index 19–510) versus a non-malignant cell line.
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24
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Ponzi S, Bresciani A, Kaiser M, Nardi V, Nizi E, Ontoria JM, Pace P, Paonessa G, Summa V, Harper S. Discovery of 4-((1-(1H-imidazol-2-yl)alkoxy)methyl)pyridines as a new class of Trypanosoma cruzi growth inhibitors. Bioorg Med Chem Lett 2020; 30:127052. [PMID: 32113841 DOI: 10.1016/j.bmcl.2020.127052] [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: 01/13/2020] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 11/24/2022]
Abstract
The identification of a new series of growth inhibitors of Trypanosoma cruzi, the causative agent of Chagas' disease, is described. In vitro screening of a subset of compounds from our in-house compound collection against the parasite led to the identification of hit compound 1 with low micromolar inhibition of T. cruzi growth. SAR exploration on the hit compound led to the identification of compounds that show nanomolar parasite growth inhibition (T. cruzi EC50 ≤ 100 nM) and no cytotoxicity in human cells (HeLa CC50 > 50 μM). Further investigation identified CYP51 inhibition (compound 11 CYP51 IC50 52 nM) as a possible mechanism of action of this new class of anti-parasitic agents.
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Affiliation(s)
- Simona Ponzi
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy.
| | - Alberto Bresciani
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland; University of Basel, Petersplatz 1, 4003 Basel, Switzerland
| | - Valentina Nardi
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Emanuela Nizi
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Jesus M Ontoria
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Paola Pace
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Giacomo Paonessa
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Vincenzo Summa
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
| | - Steven Harper
- Departments of Chemistry and Biology, IRBM Spa, Via Pontina km 30, 600, 00071 Pomezia, Rome, Italy
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25
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Álvarez-Bardón M, Pérez-Pertejo Y, Ordóñez C, Sepúlveda-Crespo D, Carballeira NM, Tekwani BL, Murugesan S, Martinez-Valladares M, García-Estrada C, Reguera RM, Balaña-Fouce R. Screening Marine Natural Products for New Drug Leads against Trypanosomatids and Malaria. Mar Drugs 2020; 18:E187. [PMID: 32244488 PMCID: PMC7230869 DOI: 10.3390/md18040187] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 02/06/2023] Open
Abstract
Neglected Tropical Diseases (NTD) represent a serious threat to humans, especially for those living in poor or developing countries. Almost one-sixth of the world population is at risk of suffering from these diseases and many thousands die because of NTDs, to which we should add the sanitary, labor and social issues that hinder the economic development of these countries. Protozoan-borne diseases are responsible for more than one million deaths every year. Visceral leishmaniasis, Chagas disease or sleeping sickness are among the most lethal NTDs. Despite not being considered an NTD by the World Health Organization (WHO), malaria must be added to this sinister group. Malaria, caused by the apicomplexan parasite Plasmodium falciparum, is responsible for thousands of deaths each year. The treatment of this disease has been losing effectiveness year after year. Many of the medicines currently in use are obsolete due to their gradual loss of efficacy, their intrinsic toxicity and the emergence of drug resistance or a lack of adherence to treatment. Therefore, there is an urgent and global need for new drugs. Despite this, the scant interest shown by most of the stakeholders involved in the pharmaceutical industry makes our present therapeutic arsenal scarce, and until recently, the search for new drugs has not been seriously addressed. The sources of new drugs for these and other pathologies include natural products, synthetic molecules or repurposing drugs. The most frequent sources of natural products are microorganisms, e.g., bacteria, fungi, yeasts, algae and plants, which are able to synthesize many drugs that are currently in use (e.g. antimicrobials, antitumor, immunosuppressants, etc.). The marine environment is another well-established source of bioactive natural products, with recent applications against parasites, bacteria and other pathogens which affect humans and animals. Drug discovery techniques have rapidly advanced since the beginning of the millennium. The combination of novel techniques that include the genetic modification of pathogens, bioimaging and robotics has given rise to the standardization of High-Performance Screening platforms in the discovery of drugs. These advancements have accelerated the discovery of new chemical entities with antiparasitic effects. This review presents critical updates regarding the use of High-Throughput Screening (HTS) in the discovery of drugs for NTDs transmitted by protozoa, including malaria, and its application in the discovery of new drugs of marine origin.
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Affiliation(s)
- María Álvarez-Bardón
- Department of Biomedical Sciences; University of León, 24071 León, Spain; (M.Á.-B.); (Y.P.-P.); (C.O.); (D.S.-C.); (R.M.R.)
| | - Yolanda Pérez-Pertejo
- Department of Biomedical Sciences; University of León, 24071 León, Spain; (M.Á.-B.); (Y.P.-P.); (C.O.); (D.S.-C.); (R.M.R.)
| | - César Ordóñez
- Department of Biomedical Sciences; University of León, 24071 León, Spain; (M.Á.-B.); (Y.P.-P.); (C.O.); (D.S.-C.); (R.M.R.)
| | - Daniel Sepúlveda-Crespo
- Department of Biomedical Sciences; University of León, 24071 León, Spain; (M.Á.-B.); (Y.P.-P.); (C.O.); (D.S.-C.); (R.M.R.)
| | - Nestor M. Carballeira
- Department of Chemistry, University of Puerto Rico, Río Piedras 00925-2537, San Juan, Puerto Rico;
| | - Babu L. Tekwani
- Department of Infectious Diseases, Division of Drug Discovery, Southern Research, Birmingham, AL 35205, USA;
| | - Sankaranarayanan Murugesan
- Department of Pharmacy, Birla Institute of Technology and Science, Pilani Campus, Vidya Vihar, Pilani 333031, India;
| | - Maria Martinez-Valladares
- Department of Animal Health, Instituto de Ganadería de Montaña (CSIC-Universidad de León), Grulleros, 24346 León, Spain;
| | - Carlos García-Estrada
- INBIOTEC (Instituto de Biotecnología de León), Avda. Real 1-Parque Científico de León, 24006 León, Spain;
| | - Rosa M. Reguera
- Department of Biomedical Sciences; University of León, 24071 León, Spain; (M.Á.-B.); (Y.P.-P.); (C.O.); (D.S.-C.); (R.M.R.)
| | - Rafael Balaña-Fouce
- Department of Biomedical Sciences; University of León, 24071 León, Spain; (M.Á.-B.); (Y.P.-P.); (C.O.); (D.S.-C.); (R.M.R.)
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26
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Hagen JP, Darner G, Anderson S, Higgins K, Leas DA, Mitra A, Mashinson V, Wol T, Vera-Esquivel C, Belter B, Cal M, Kaiser M, Wallick A, Warner RC, Davis PH. Activity of diphenyl ether benzyl amines against Human African Trypanosomiasis. Bioorg Chem 2020; 97:103590. [PMID: 32179269 DOI: 10.1016/j.bioorg.2020.103590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/29/2019] [Accepted: 01/15/2020] [Indexed: 01/08/2023]
Abstract
Insect-borne parasite Trypanosoma brucei plagues humans and other animals, eliciting the disease Human African trypanosomiasis, also known as African sleeping sickness. This disease poses the biggest threat to the people in Sub-Saharan Africa. Given the high toxicity and difficulties with administration of currently available drugs, a novel treatment is needed. Building on known Human African trypanosomiasis structure-activity relationship (SAR), we now describe a number of functionally simple diphenyl ether analogs which give low micromolar activity (IC50 = 0.16-0.96 μM) against T. b. rhodesiense. The best compound shows favorable selectivity against the L6 cell line (SI = 750) and even greater selectivity (SI = 1200) against four human cell lines. The data herein provides direction for the ongoing optimization of antitrypanosomal diphenyl ethers.
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Affiliation(s)
- James P Hagen
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States.
| | - Grant Darner
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Samuel Anderson
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Katie Higgins
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Derek A Leas
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Ananya Mitra
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Victoria Mashinson
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Tasloach Wol
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Carlos Vera-Esquivel
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Bret Belter
- Department of Chemistry, University of Nebraska at Omaha, Omaha, NE 68182-0109, United States
| | - Monica Cal
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Alexander Wallick
- Department of Biology, University of Nebraska at Omaha, Omaha, NE 68182, United States
| | - Rosalie C Warner
- Department of Biology, University of Nebraska at Omaha, Omaha, NE 68182, United States
| | - Paul H Davis
- Department of Biology, University of Nebraska at Omaha, Omaha, NE 68182, United States
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Masangkay FR, Milanez GD, Tsiami A, Somsak V, Kotepui M, Tangpong J, Karanis P. First report of Cryptosporidium hominis in a freshwater sponge. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 700:134447. [PMID: 31677419 DOI: 10.1016/j.scitotenv.2019.134447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 09/12/2019] [Indexed: 06/10/2023]
Abstract
Identification of Cryptosporidium oocyst is essential in ensuring water quality fit for human use, consumption, and recreation. This communication proposes the supplemental analysis of substrate-associated biofilms, in particular, freshwater sponges in improving case finding of waterborne-protozoan pathogens (WBPP) in environmental aquatic samples. In this study, a small portion of a mature freshwater sponge under the Genus Spongilla was subjected to microscopic and molecular analysis to identify the presence of Cryptosporidium. Microscopic screening with modified Kinyoun's staining (MK) and microscopic confirmation using direct antibody fluorescent testing (IFT) returned with Cryptosporidium spp. positive findings. Molecular investigation resulted in the confirmation of Cryptosporidium hominis upon sequencing of PCR products and phylogenetic analysis. This is the first report of a pathogenic protozoan, C. hominis isolated from a freshwater sponge. The results of this study provide evidence of the value of expanding water quality assessment strategies to the analysis of substrate-associated biofilms and sponges in improving case finding of WBPP in natural aquatic environments.
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Affiliation(s)
- Frederick R Masangkay
- Biomedical Sciences Program, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand; Department of Medical Technology, Institute of Arts and Sciences, Far Eastern University-Manila, Manila 1015, Philippines.
| | - Giovanni D Milanez
- Biomedical Sciences Program, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand; Department of Medical Technology, Institute of Arts and Sciences, Far Eastern University-Manila, Manila 1015, Philippines
| | - Amalia Tsiami
- London Geller College of Hospitality and Tourism, University of West London, St Mary's Road, Ealing, London W5 5RF, United Kingdom
| | - Voravuth Somsak
- Biomedical Sciences Program, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Manas Kotepui
- Biomedical Sciences Program, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand
| | - Jitbanjong Tangpong
- Biomedical Sciences Program, School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat 80160, Thailand.
| | - Panagiotis Karanis
- University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; University of Nicosia Medical School, Anatomy Centre, P.O. Box 24005, CY-1700, Nicosia, 2408, Cyprus
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Wang X, Cal M, Kaiser M, Buckner FS, Lepesheva GI, Sanford AG, Wallick AI, Davis PH, Vennerstrom JL. A new chemotype with promise against Trypanosoma cruzi. Bioorg Med Chem Lett 2020; 30:126778. [PMID: 31706668 DOI: 10.1016/j.bmcl.2019.126778] [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: 09/23/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 10/25/2022]
Abstract
Pyridyl benzamide 2 is a potent inhibitor of Trypanosoma cruzi, but not other protozoan parasites, and had a selectivity-index of ≥10. The initial structure-activity relationship (SAR) indicates that benzamide and sulfonamide functional groups, and N-methylpiperazine and sterically unhindered 3-pyridyl substructures are required for high activity against T. cruzi. Compound 2 and its active analogs had low to moderate metabolic stabilities in human and mouse liver microsomes.
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Affiliation(s)
- Xiaofang Wang
- College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, Omaha, NE, United States
| | - Monica Cal
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Socinstrasse 57, CH-4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Marcel Kaiser
- Department of Medical Parasitology and Infection Biology, Swiss Tropical Institute, Socinstrasse 57, CH-4002 Basel, Switzerland; University of Basel, CH-4003 Basel, Switzerland
| | - Frederick S Buckner
- Department of Medicine, University of Washington, 750 Republican Street, Seattle, WA, United States
| | - Galina I Lepesheva
- Department of Biochemistry, Vanderbilt University, 2200 Pierce Ave., Nashville, TN, United States
| | - Austin G Sanford
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
| | - Alexander I Wallick
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
| | - Paul H Davis
- Department of Biology, University of Nebraska at Omaha, Omaha, NE, United States
| | - Jonathan L Vennerstrom
- College of Pharmacy, University of Nebraska Medical Center, 986025 Nebraska Medical Center, Omaha, NE, United States.
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Synthesis, in-vitro antiprotozoal activity and molecular docking study of isothiocyanate derivatives. Bioorg Med Chem 2020; 28:115185. [DOI: 10.1016/j.bmc.2019.115185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 10/12/2019] [Accepted: 10/25/2019] [Indexed: 11/22/2022]
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Zhao L, Awori RM, Kaiser M, Groß J, Opatz T, Bode HB. Structure, Biosynthesis, and Bioactivity of Photoditritide from Photorhabdus temperata Meg1. JOURNAL OF NATURAL PRODUCTS 2019; 82:3499-3503. [PMID: 31799840 DOI: 10.1021/acs.jnatprod.9b00932] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A new cyclic peptide photoditritide (1), containing two rare amino acid d-homoarginine residues, was isolated from Photorhabdus temperata Meg1 after the nonribosomal peptide synthetase encoding gene pdtS was activated via promoter exchange. The structure of 1 was elucidated by HR-MS and NMR experiments. The absolute configurations of amino acids were determined according to the advanced Marfey's method after hydrolysis of 1. Bioactivity testing of 1 revealed potent antimicrobial activity against Micrococcus luteus with an MIC value of 3.0 μM and weak antiprotozoal activity against Trypanosoma brucei rhodesiense with an IC50 value of 13 μM. Additionally, the biosynthetic pathway of 1 was also proposed.
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Affiliation(s)
- Lei Zhao
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences , 210014 Nanjing , China
| | | | - Marcel Kaiser
- Swiss Tropical and Public Health Institute , 4051 Basel , Switzerland
| | - Jonathan Groß
- Institute of Organic Chemistry , Johannes Gutenberg University Mainz , 55128 Mainz , Germany
| | - Till Opatz
- Institute of Organic Chemistry , Johannes Gutenberg University Mainz , 55128 Mainz , Germany
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Fayez S, Li J, Feineis D, Aké Assi L, Kaiser M, Brun R, Anany MA, Wajant H, Bringmann G. A Near-Complete Series of Four Atropisomeric Jozimine A 2-Type Naphthylisoquinoline Dimers with Antiplasmodial and Cytotoxic Activities and Related Alkaloids from Ancistrocladus abbreviatus. JOURNAL OF NATURAL PRODUCTS 2019; 82:3033-3046. [PMID: 31642313 DOI: 10.1021/acs.jnatprod.9b00589] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Three new naphthylisoquinoline dimers, jozibrevines A-C (1a-c), were isolated from the West African shrub Ancistrocladus abbreviatus, along with the known dimer jozimine A2 (1d). The two molecular moieties of 1a-d are coupled via the sterically constrained 3',3″-positions of their two naphthalene units, so that the central biaryl linkage is rotationally hindered. With the two outer axes also being chiral, 1a-d possess three consecutive stereogenic axes. The four isolated dimers all have the same constitutions and identical absolute configurations at the four stereogenic centers, but differ by their axial chirality. They belong to the extremely small class of Dioncophyllaceae-type naphthylisoquinoline dimers, i.e., being devoid of oxygen functions at C-6 and bearing the R-configuration at C-3 in their isoquinoline portions. Besides these dimers, the plant produces predominantly typical Ancistrocladaceae-type monomeric compounds, i.e., with the S-configuration at C-3 and an oxygen function at C-6, such as the new ancistrobrevines K (5) and L (6). Furthermore, a new hybrid-type (i.e., mixed Ancistrocladaceae/Dioncophyllaceae-type) alkaloid was identified, named ancistrobrevine M (7), which is 3R-configured and 6-oxygenated. Remarkable was the discovery of its "inverse hybrid-type" counterpart, dioncoline A (8). It is the as yet only known 3S-configured naphthylisoquinoline lacking an O-functionality at C-6. The new jozibrevines A-C (1a-c) exhibited pronounced antiplasmodial activities in the submicromolar range, with 1a being the most potent compound (IC50, 0.012 μM). Furthermore, jozimine A2 (1d) showed cytotoxicity against human colon carcinoma (HT-29), fibrosarcoma (HT1080), and multiple myeloma (MM.1S) cancer cells, displaying IC50 values of 12.0, 9.0, and 5.0 μM, respectively, whereas jozibrevines A (1a) and B (1b) were nontoxic in this concentration range.
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Affiliation(s)
- Shaimaa Fayez
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
- Department of Pharmacognosy, Faculty of Pharmacy , Ain-Shams University , Organization of African Unity Street 1 , 11566 Cairo , Egypt
| | - Jun Li
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
- State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization and Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry , Chinese Academy of Sciences , Urumqi , 830011 , People's Republic of China
| | - Doris Feineis
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - Laurent Aké Assi
- Centre National de Floristique, Conservatoire et Jardin Botaniques , Université d' Abidjan , Abidjan 08, Ivory Coast
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
- University of Basel , Petersplatz 1 , CH-4003 Basel , Switzerland
| | - Reto Brun
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
- University of Basel , Petersplatz 1 , CH-4003 Basel , Switzerland
| | - Mohamed A Anany
- Division of Molecular Internal Medicine, Department of Internal Medicine II , University Hospital Würzburg , Grombühlstraße 12 , D-97080 Würzburg , Germany
- Division of Genetic Engineering and Biotechnology, Department of Microbial Biotechnology , National Research Centre , El Buhouth Street, Dokki , 12622 Giza , Egypt
| | - Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II , University Hospital Würzburg , Grombühlstraße 12 , D-97080 Würzburg , Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
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Tshitenge DT, Bruhn T, Feineis D, Schmidt D, Mudogo V, Kaiser M, Brun R, Würthner F, Awale S, Bringmann G. Ealamines A-H, a Series of Naphthylisoquinolines with the Rare 7,8'-Coupling Site, from the Congolese Liana Ancistrocladus ealaensis, Targeting Pancreatic Cancer Cells. JOURNAL OF NATURAL PRODUCTS 2019; 82:3150-3164. [PMID: 31630523 DOI: 10.1021/acs.jnatprod.9b00755] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
From the twigs and leaves of the Central African liana Ancistrocladus ealaensis (Ancistrocladaceae), a series of ten 7,8'-coupled naphthylisoquinoline alkaloids were isolated, comprising eight new compounds, named ealamines A-H (4a, 4b, 5-10), and two known ones, 6-O-demethylancistrobrevine A (11) and yaoundamine A (12), which had previously been found in related African Ancistrocladus species. Only one of the new compounds within this series, ealamine H (10), is a typical Ancistrocladaceae-type alkaloid, with 3S-configuration at C-3 and an oxygen function at C-6, whereas seven of the new alkaloids are the first 7,8'-linked "hybrid-type" naphthylisoquinoline alkaloids, i.e., 3R-configured and 6-oxygenated in the tetrahydroisoquinoline part. The discovery of such a broad series of 7,8'-coupled naphthyltetrahydroisoquinolines is unprecedented, because representatives of this subclass of alkaloids are normally found in Nature quite rarely. The stereostructures of the new ealamines were assigned by HRESIMS, 1D and 2D NMR, oxidative degradation, and experimental and quantum-chemical ECD investigations, and-in the case of ealamine A (4a)-also confirmed by X-ray diffraction analysis. Ealamines A-D exhibited distinct-and specific-antiplasmodial activities, and they displayed pronounced preferential cytotoxic effects toward PANC-1 human pancreatic cancer cells in nutrient-deprived medium, without causing toxicity under normal, nutrient-rich conditions, with ealamine C (5) as the most potent agent.
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Affiliation(s)
- Dieudonné Tshitenge Tshitenge
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
- Faculty of Pharmaceutical Sciences , University of Kinshasa , B.P. 212 Kinshasa XI, Democratic Republic of the Congo
- Medicinal Chemistry , Bayer AG, Pharmaceuticals , Aprather Weg 18a , D-42096 Wuppertal , Germany
| | - Torsten Bruhn
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
- Federal Institute for Risk Assessment , Max-Dohrn-Straße 8-10 , D-10589 Berlin , Germany
| | - Doris Feineis
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - David Schmidt
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - Virima Mudogo
- Faculté des Sciences , Université de Kinshasa , B.P. 202 , Kinshasa XI, Democratic Republic of the Congo
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
- University of Basel , Petersplatz 1 , CH-4003 Basel , Switzerland
| | - Reto Brun
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
- University of Basel , Petersplatz 1 , CH-4003 Basel , Switzerland
| | - Frank Würthner
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - Suresh Awale
- Division of Natural Drug Discovery, Institute of Natural Medicine , University of Toyama , 2630 Sugitani , Toyama 930-0194 , Japan
| | - Gerhard Bringmann
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
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Cadelis MM, Pike EIW, Kang W, Wu Z, Bourguet-Kondracki ML, Blanchet M, Vidal N, Brunel JM, Copp BR. Exploration of the antibiotic potentiating activity of indolglyoxylpolyamines. Eur J Med Chem 2019; 183:111708. [PMID: 31550659 DOI: 10.1016/j.ejmech.2019.111708] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/29/2019] [Accepted: 09/15/2019] [Indexed: 11/29/2022]
Abstract
A series of substituted di-indolglyoxylamido-spermine analogues were prepared and evaluated for intrinsic antimicrobial properties and the ability to enhance antibiotic action. As a compound class, intrinsic activity was typically observed towards Gram-positive bacteria and the fungus Cryptococcus neoformans, with notable exceptions being the 5-bromo- and 6-chloro-indole analogues which also exhibited modest activity (MIC 34-50 μM) towards the Gram-negative bacteria Escherichia coli and Klebsiella pneumoniae. Several analogues enhanced the activity of doxycycline towards the Gram-negative bacteria Pseudomonas aeruginosa, E. coli, K. pneumoniae and Acinetobacter baumannii. Of particular note was the identification of five antibiotic enhancing analogues (5-Br, 7-F, 5-Me, 7-Me, 7-OMe) which also exhibited low to no cytotoxicity and red blood cell haemolytic properties. The mechanisms of action of the 5-Br and 7-F analogues were attributed to the ability to disrupt the integrity of, and depolarize, bacterial membranes.
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Affiliation(s)
- Melissa M Cadelis
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Elliot I W Pike
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Weirong Kang
- School of Pharmacy, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Zimei Wu
- School of Pharmacy, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Marie-Lise Bourguet-Kondracki
- Laboratoire Molécules de Communication et Adaptation des Micro-organismes, UMR 7245 CNRS, Muséum National d'Histoire Naturelle, 57 Rue Cuvier (C.P. 54), 75005, Paris, France
| | - Marine Blanchet
- Aix Marseille Univ, INSERM, SSA, MCT, Faculté de Pharmacie, 27 bd Jean Moulin, 13385, Marseille, France
| | - Nicolas Vidal
- YELEN, 10 bd Tempête, 13820, Ensues la Redonne, France
| | - Jean Michel Brunel
- Aix Marseille Univ, INSERM, SSA, MCT, Faculté de Pharmacie, 27 bd Jean Moulin, 13385, Marseille, France
| | - Brent R Copp
- School of Chemical Sciences, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand.
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Shi YN, Pusch S, Shi YM, Richter C, Maciá-Vicente JG, Schwalbe H, Kaiser M, Opatz T, Bode HB. (±)-Alternarlactones A and B, Two Antiparasitic Alternariol-like Dimers from the Fungus Alternaria alternata P1210 Isolated from the Halophyte Salicornia sp. J Org Chem 2019; 84:11203-11209. [DOI: 10.1021/acs.joc.9b01229] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
| | - Stefan Pusch
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | | | | | | | | | - Marcel Kaiser
- Parasite Chemotherapy, Swiss Tropical and Public Health Institute and University of Basel, 4003 Basel, Switzerland
| | - Till Opatz
- Institute of Organic Chemistry, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
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N-substituted noscapine derivatives as new antiprotozoal agents: Synthesis, antiparasitic activity and molecular docking study. Bioorg Chem 2019; 91:103116. [PMID: 31377384 DOI: 10.1016/j.bioorg.2019.103116] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 07/03/2019] [Accepted: 07/10/2019] [Indexed: 11/21/2022]
Abstract
Novel N-substituted noscapine derivatives were synthesized by a three-component Strecker reaction of cyclic ether of N-nornoscapine with varied aldehydes, in the presence of cyanide ion. Moreover, the corresponding amides were synthesized by the oxidation of cyanide moieties in good yields. The in vitro antiprotozoal activity of the products was also investigated. Interestingly, some analogues did put on display promising antiparasitic activity against Trypanosoma brucei rhodesiense with IC50 values between 2.5 and 10.0 µM and selectivity index (SI) ranged from 0.8 to 13.2. Eight compounds exhibited activity against Plasmodium falciparum K1 strain with IC50 ranging 1.7-6.4 µM, and SI values between 2.8 and 10.5 against L6 rat myoblast cell lines. Molecular docking was carried out on trypanothione reductase (TbTR, PDB ID: 2WOW) and UDP-galactose 4' epimerase (TbUDPGE PDB: 1GY8) as targets for studying the envisaged mechanism of action. Compounds 6j2 and 6b2 displayed excellent docking scores with -8.59 and -8.86 kcal/mol for TbTR and TbUDPGE, respectively.
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Tshitenge DT, Bruhn T, Feineis D, Mudogo V, Kaiser M, Brun R, Bringmann G. An Unusually Broad Series of Seven Cyclombandakamines, Bridged Dimeric Naphthylisoquinoline Alkaloids from the Congolese Liana Ancistrocladus ealaensis. Sci Rep 2019; 9:9812. [PMID: 31285489 PMCID: PMC6614417 DOI: 10.1038/s41598-019-46336-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 06/26/2019] [Indexed: 11/17/2022] Open
Abstract
A series of seven unusual dimeric naphthylisoquinoline alkaloids was isolated from the leaves of the tropical liana Ancistrocladus ealaensis J. Léonard, named cyclombandakamine A (1), 1-epi-cyclombandakamine A (2), and cyclombandakamines A3–7 (3–7). These alkaloids have a chemically thrilling structural array consisting of a twisted dihydrofuran-cyclohexenone-isochromene system. The 1′″-epimer of 4, cyclombandakamine A1 (8), had previously been discovered in an unidentified Ancistrocladus species related to A. ealaensis. Both lianas produce the potential parent precursor, mbandakamine A (9), but only A. ealaensis synthesizes the corresponding cyclized form, along with a broad series of slightly modified analogs. The challenging isolation required, besides multi-dimensional chromatography, the use of a pentafluorophenyl stationary phase. Featuring up to six stereocenters and two types of chiral axes, their structures were elucidated by means of 1D and 2D NMR, HRESIMS, in combination with oxidative chemical degradation experiments as well as chiroptical (electronic circular dichroism spectroscopy) and quantum chemical calculations. Compared to the ‘open-chain’ parent compound 9, these dimers displayed rather moderate antiplasmodial activities.
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Affiliation(s)
- Dieudonné Tshitenge Tshitenge
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany.,Faculty of Pharmaceutical Sciences, University of Kinshasa, B.P. 212, Kinshasa XI, Democratic Republic of the Congo
| | - Torsten Bruhn
- Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, D-10589, Berlin, Germany
| | - Doris Feineis
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany
| | - Virima Mudogo
- Faculty of Sciences, University of Kinshasa, B.P. 202, Kinshasa XI, Democratic Republic of the Congo
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002, Basel, Switzerland.,University of Basel, Petersplatz 1, CH-4003, Basel, Switzerland
| | - Reto Brun
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002, Basel, Switzerland.,University of Basel, Petersplatz 1, CH-4003, Basel, Switzerland
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, D-97074, Würzburg, Germany.
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Li SA, Cadelis MM, Sue K, Blanchet M, Vidal N, Brunel JM, Bourguet-Kondracki ML, Copp BR. 6-Bromoindolglyoxylamido derivatives as antimicrobial agents and antibiotic enhancers. Bioorg Med Chem 2019; 27:2090-2099. [DOI: 10.1016/j.bmc.2019.04.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/03/2019] [Indexed: 01/28/2023]
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Mufusama JP, Feineis D, Mudogo V, Kaiser M, Brun R, Bringmann G. Antiprotozoal dimeric naphthylisoquinolines, mbandakamines B 3 and B 4, and related 5,8'-coupled monomeric alkaloids, ikelacongolines A-D, from a Congolese Ancistrocladus liana. RSC Adv 2019; 9:12034-12046. [PMID: 35517005 PMCID: PMC9063559 DOI: 10.1039/c9ra01784d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 04/10/2019] [Indexed: 12/01/2022] Open
Abstract
From the leaves of a botanically and phytochemically as yet unexplored Ancistrocladus liana discovered in the rainforests of the Central region of the Democratic Republic of the Congo in the vicinity of the town of Ikela, six new naphthylisoquinoline alkaloids were isolated, viz., two constitutionally unsymmetric dimers, the mbandakamines B3 (3) and B4 (4), and four related 5,8'-linked monomeric alkaloids, named ikelacongolines A-D (5a, 5b, 6, and 7). The dimers 3 and 4 are structurally unusual quateraryls comprising two 5,8'-coupled monomers linked via a sterically strongly constrained 6',1''-connection between their naphthalene units. These compounds contain seven elements of chirality, four stereogenic centers and three consecutive chiral axes. They were identified along with two known related compounds, the mbandakamines A (1) and B2 (2), which had so far only been detected in two Ancistrocladus species indigenous to the Northwestern Congo Basin. In addition, five known monomeric alkaloids, previously found in related Central African Ancistrocladus species, were isolated from the here investigated Congolese liana, three of them belonging to the subclass of 5,8'-coupled naphthylisoquinoline alkaloids, whereas two compounds exhibited a less frequently occurring 7,8'-biaryl linkage. The stereostructures of the new alkaloids were established by spectroscopic (in particular HRESIMS, 1D and 2D NMR), chemical (oxidative degradation), and chiroptical (electronic circular dichroism) methods. The mbandakamines B3 (3) and B4 (4) displayed pronounced activities in vitro against the malaria parasite Plasmodium falciparum and the pathogen of African sleeping sickness, Trypanosoma brucei rhodesiense.
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Affiliation(s)
- Jean-Pierre Mufusama
- Institute of Organic Chemistry, University of Würzburg Am Hubland D-97074 Würzburg Germany
- Faculté des Sciences Pharmaceutiques, Université de Kinshasa B.P. 212, Kinshasa XI Democratic Republic of the Congo
| | - Doris Feineis
- Institute of Organic Chemistry, University of Würzburg Am Hubland D-97074 Würzburg Germany
| | - Virima Mudogo
- Faculté des Sciences, Université de Kinshasa B.P. 202, Kinshasa XI Democratic Republic of the Congo
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute Socinstrasse 57 CH-4002 Basel Switzerland
- University of Basel Petersplatz 1 CH-4003 Basel Switzerland
| | - Reto Brun
- Swiss Tropical and Public Health Institute Socinstrasse 57 CH-4002 Basel Switzerland
- University of Basel Petersplatz 1 CH-4003 Basel Switzerland
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg Am Hubland D-97074 Würzburg Germany
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Saccoliti F, Madia VN, Tudino V, De Leo A, Pescatori L, Messore A, De Vita D, Scipione L, Brun R, Kaiser M, Mäser P, Calvet CM, Jennings GK, Podust LM, Pepe G, Cirilli R, Faggi C, Di Marco A, Battista MR, Summa V, Costi R, Di Santo R. Design, Synthesis, and Biological Evaluation of New 1-(Aryl-1 H-pyrrolyl)(phenyl)methyl-1 H-imidazole Derivatives as Antiprotozoal Agents. J Med Chem 2019; 62:1330-1347. [PMID: 30615444 DOI: 10.1021/acs.jmedchem.8b01464] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We have designed and synthesized a series of new imidazole-based compounds structurally related to an antiprotozoal agent with nanomolar activity which we identified recently. The new analogues possess micromolar activities against Trypanosoma brucei rhodesiense and Leishmania donovani and nanomolar potency against Plasmodium falciparum. Most of the analogues displayed IC50 within the low nanomolar range against Trypanosoma cruzi, with very high selectivity toward the parasite. Discussion of structure-activity relationships and in vitro biological data for the new compounds are provided against a number of different protozoa. The mechanism of action for the most potent derivatives (5i, 6a-c, and 8b) was assessed by a target-based assay using recombinant T. cruzi CYP51. Bioavailability and efficacy of selected hits were assessed in a T. cruzi mouse model, where 6a and 6b reduced parasitemia in animals >99% following intraperitoneal administration of 25 mg/kg/day dose for 4 consecutive days.
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Affiliation(s)
- Francesco Saccoliti
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Valentina Noemi Madia
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Valeria Tudino
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Alessandro De Leo
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Luca Pescatori
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Antonella Messore
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Daniela De Vita
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Luigi Scipione
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Reto Brun
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
| | - Claudia M Calvet
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California San Diego , La Jolla , California 92093 , United States.,Laboratório de Ultraestrutura Celular , Instituto Oswaldo Cruz (IOC), FIOCRUZ, Rio de Janeiro , Rio de Janeiro 21040-360 , Brazil
| | - Gareth K Jennings
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California San Diego , La Jolla , California 92093 , United States
| | - Larissa M Podust
- Skaggs School of Pharmacy and Pharmaceutical Sciences , University of California San Diego , La Jolla , California 92093 , United States
| | - Giacomo Pepe
- Dipartimento di Farmacia , Università di Salerno , Via Giovanni Paolo II 132 , I-84084 Fisciano , Salerno , Italy
| | - Roberto Cirilli
- Centro Nazionale per il Controllo e la Valutazione dei Farmaci , Istituto Superiore di Sanita , Viale Regina Elena 299 , I-00161 Rome , Italy
| | - Cristina Faggi
- Dipartimento di Chimica , Università degli studi di Firenze , Via della Lastruccia 13 , I-50019 , Sesto Fiorentino , Florence , Italy
| | - Annalise Di Marco
- Drug Discovery , IRBM Science Park , Via Pontina km 30,600 , Pomezia, Rome 00071 , Italy
| | - Maria Rosaria Battista
- Drug Discovery , IRBM Science Park , Via Pontina km 30,600 , Pomezia, Rome 00071 , Italy
| | - Vincenzo Summa
- Drug Discovery , IRBM Science Park , Via Pontina km 30,600 , Pomezia, Rome 00071 , Italy
| | - Roberta Costi
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
| | - Roberto Di Santo
- Istituto Pasteur-Fondazione Cenci Bolognetti , Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma , p. le Aldo Moro 5 , I-00185 Rome , Italy
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Palmieri A, Petrini M. Tryptophol and derivatives: natural occurrence and applications to the synthesis of bioactive compounds. Nat Prod Rep 2019; 36:490-530. [DOI: 10.1039/c8np00032h] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This report presents some fundamental aspects related to the natural occurrence and bioactivity of tryptophol as well as the synthesis of tryptophols and their utilization for the preparation of naturally occurring alkaloid metabolites embedding the indole system.
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Affiliation(s)
- Alessandro Palmieri
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
| | - Marino Petrini
- School of Science and Technology
- Chemistry Division
- University of Camerino
- Italy
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41
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Tabefam M, Moridi Farimani M, Danton O, Ramseyer J, Nejad Ebrahimi S, Neuburger M, Kaiser M, Salehi P, Potterat O, Hamburger M. Antiprotozoal Isoprenoids from Salvia hydrangea. JOURNAL OF NATURAL PRODUCTS 2018; 81:2682-2691. [PMID: 30565934 DOI: 10.1021/acs.jnatprod.8b00498] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Fractionation of the n-hexane extract of Salvia hydrangea afforded seven isoprenoids including six new compounds (1-6) and salvadione A (7). Their structures were established by comprehensive spectroscopic and spectrometric data analysis (1D and 2D NMR, HRMS). The absolute configuration of salvadione A (7) was established by single-crystal X-ray diffraction analysis with Cu/Kα radiation. In addition, the absolute configuration of all compounds was determined by electronic circular dichroism spectroscopy. A biosynthetic pathway for the formation of the scaffold of 1 is proposed. The antiprotozoal activity of the compounds against Trypanosoma brucei rhodesiense, Trypanosoma cruzi, Leishmania donovani, and Plasmodium falciparum was determined, and cytotoxicity was assessed in rat myoblast L6 cells. Perovskone C (2) exhibited good activity against P. falciparum (IC50 0.6 μM) and a selectivity index of 62.2.
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Affiliation(s)
- Marzieh Tabefam
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute , Shahid Beheshti University , G. C., Evin , Tehran , Iran
- Department of Pharmaceutical Biology , University of Basel , Klingelbergstrasse 50 , 4056 Basel , Switzerland
| | - Mahdi Moridi Farimani
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute , Shahid Beheshti University , G. C., Evin , Tehran , Iran
| | - Ombeline Danton
- Department of Pharmaceutical Biology , University of Basel , Klingelbergstrasse 50 , 4056 Basel , Switzerland
| | - Justine Ramseyer
- Department of Pharmaceutical Biology , University of Basel , Klingelbergstrasse 50 , 4056 Basel , Switzerland
| | - Samad Nejad Ebrahimi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute , Shahid Beheshti University , G. C., Evin , Tehran , Iran
| | - Markus Neuburger
- Inorganic Chemistry, Department of Chemistry , University of Basel , Mattenstrasse 24a , 4058 Basel , Switzerland
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , 4002 Basel , Switzerland
- University of Basel , 4001 Basel , Switzerland
| | - Peyman Salehi
- Department of Phytochemistry, Medicinal Plants and Drugs Research Institute , Shahid Beheshti University , G. C., Evin , Tehran , Iran
| | - Olivier Potterat
- Department of Pharmaceutical Biology , University of Basel , Klingelbergstrasse 50 , 4056 Basel , Switzerland
| | - Matthias Hamburger
- Department of Pharmaceutical Biology , University of Basel , Klingelbergstrasse 50 , 4056 Basel , Switzerland
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42
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Fong HK, Cadelis MM, Brunel JM, Bourguet-Kondracki ML, Barker D, Copp BR. Alaninyl variants of the marine natural product halocyamine A and their antibacterial properties. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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Ancistrobrevines E-J and related naphthylisoquinoline alkaloids from the West African liana Ancistrocladus abbreviatus with inhibitory activities against Plasmodium falciparum and PANC-1 human pancreatic cancer cells. Fitoterapia 2018; 131:245-259. [DOI: 10.1016/j.fitote.2018.11.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 11/07/2018] [Indexed: 01/28/2023]
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44
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Zhao L, Cai X, Kaiser M, Bode HB. Methionine-Containing Rhabdopeptide/Xenortide-like Peptides from Heterologous Expression of the Biosynthetic Gene Cluster kj12ABC in Escherichia coli. JOURNAL OF NATURAL PRODUCTS 2018; 81:2292-2295. [PMID: 30302998 DOI: 10.1021/acs.jnatprod.8b00425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Seven new methionine-containing rhabdopeptide/xenortide-like peptides (1-7) were identified from Escherichia coli expressing the rhabdopeptide/xenortide-like peptide biosynthetic gene cluster kj12ABC from Xenorhabdus KJ12.1. Their structures were elucidated by detailed HPLC-HR-MS/MS analysis and confirmed by chemical synthesis. Bioactivity tests of these first rhabdopeptide/xenortide-like peptide derivatives (2-7) showing methionine building blocks compared to the usually found derivatives containing exclusively hydrophobic amino acids such as valine, leucine, or phenylalanine revealed good activities of 2-7 against protozoan parasites and no cytotoxicity against mammalian L6 cells.
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Affiliation(s)
- Lei Zhao
- Molekulare Biotechnologie, Fachbereich Biowissenschaften , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany
- Institute of Botany , Jiangsu Province and Chinese Academy of Sciences , 210014 Nanjing , China
| | - Xiaofeng Cai
- Molekulare Biotechnologie, Fachbereich Biowissenschaften , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany
| | - Marcel Kaiser
- Parasite Chemotherapy , Swiss Tropical and Public Health Institute , 4051 Basel , Switzerland
- University of Basel , 4003 Basel , Switzerland
| | - Helge B Bode
- Molekulare Biotechnologie, Fachbereich Biowissenschaften , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany
- Buchmann Institute for Molecular Life Sciences (BMLS) , Goethe Universität Frankfurt , 60438 Frankfurt am Main , Germany
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45
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Roager HM, Licht TR. Microbial tryptophan catabolites in health and disease. Nat Commun 2018; 9:3294. [PMID: 30120222 PMCID: PMC6098093 DOI: 10.1038/s41467-018-05470-4] [Citation(s) in RCA: 1036] [Impact Index Per Article: 172.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 07/03/2018] [Indexed: 12/15/2022] Open
Abstract
Accumulating evidence implicates metabolites produced by gut microbes as crucial mediators of diet-induced host-microbial cross-talk. Here, we review emerging data suggesting that microbial tryptophan catabolites resulting from proteolysis are influencing host health. These metabolites are suggested to activate the immune system through binding to the aryl hydrocarbon receptor (AHR), enhance the intestinal epithelial barrier, stimulate gastrointestinal motility, as well as secretion of gut hormones, exert anti-inflammatory, anti-oxidative or toxic effects in systemic circulation, and putatively modulate gut microbial composition. Tryptophan catabolites thus affect various physiological processes and may contribute to intestinal and systemic homeostasis in health and disease.
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Affiliation(s)
- Henrik M Roager
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, DK-1958, Frederiksberg, Denmark.
- National Food Institute, Technical University of Denmark, DK-2800 Kgs, Lyngby, Denmark.
| | - Tine R Licht
- National Food Institute, Technical University of Denmark, DK-2800 Kgs, Lyngby, Denmark.
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46
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Saccoliti F, Madia VN, Tudino V, De Leo A, Pescatori L, Messore A, De Vita D, Scipione L, Brun R, Kaiser M, Mäser P, Calvet CM, Jennings GK, Podust LM, Costi R, Di Santo R. Biological evaluation and structure-activity relationships of imidazole-based compounds as antiprotozoal agents. Eur J Med Chem 2018; 156:53-60. [PMID: 30006174 DOI: 10.1016/j.ejmech.2018.06.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 06/25/2018] [Accepted: 06/27/2018] [Indexed: 11/19/2022]
Abstract
We discovered a series of azole antifungal compounds as effective antiprotozoal agents. They displayed promising inhibitory activities within the micromolar-submicromolar range against P. falciparum, L. donovani, and T. b. rhodesiense. Moreover, most of such compounds showed excellent nanomolar IC50 against T. cruzi, showing also very low cytotoxicity. Discussion of structure-activity relationships and biological data for these compounds are provided against the different parasites. To assess the mechanism of action against T. cruzi we proved that the most potent compounds (3b, 3j-l) inhibited the T. cruzi CYP51. Moreover, the most active derivative 3j dramatically reduced parasitemia in T. cruzi mouse model without acute toxicity.
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Affiliation(s)
- Francesco Saccoliti
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Valentina Noemi Madia
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Valeria Tudino
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Alessandro De Leo
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Luca Pescatori
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Antonella Messore
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Daniela De Vita
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Luigi Scipione
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Reto Brun
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002, Basel, Switzerland.
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002, Basel, Switzerland.
| | - Pascal Mäser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4002, Basel, Switzerland.
| | - Claudia Magalhaes Calvet
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, 92093, USA; Laboratório de Ultraestrutura Celular, Instituto Oswaldo Cruz, FIOCRUZ, Rio de Janeiro, RJ, 21040-360, Brazil.
| | - Gareth K Jennings
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, 92093, USA.
| | - Larissa M Podust
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, 92093, USA.
| | - Roberta Costi
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
| | - Roberto Di Santo
- Istituto Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie del Farmaco, "Sapienza" Università di Roma, p.le Aldo Moro 5, I-00185, Rome, Italy.
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47
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Ma X, Cao N, Zhang C, Guo X, Zhao M, Tu P, Jiang Y. Cytotoxic carbazole alkaloid derivatives from the leaves and stems of Murraya microphylla. Fitoterapia 2018; 127:334-340. [DOI: 10.1016/j.fitote.2018.03.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 03/22/2018] [Accepted: 03/31/2018] [Indexed: 02/07/2023]
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48
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Annang F, Pérez-Victoria I, Appiah T, Pérez-Moreno G, Domingo E, Martín J, Mackenzie T, Ruiz-Pérez L, González-Pacanowska D, Genilloud O, Vicente F, Agyare C, Reyes F. Antiprotozoan sesterterpenes and triterpenes isolated from two Ghanaian mushrooms. Fitoterapia 2018; 127:341-348. [DOI: 10.1016/j.fitote.2018.03.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 03/20/2018] [Accepted: 03/31/2018] [Indexed: 11/28/2022]
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49
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N-oxide alkaloids from Crinum amabile (Amaryllidaceae). Molecules 2018; 23:molecules23061277. [PMID: 29861456 PMCID: PMC6099558 DOI: 10.3390/molecules23061277] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 11/17/2022] Open
Abstract
Natural products play an important role in the development of new drugs. In this context, the Amaryllidaceae alkaloids have attracted considerable attention in view of their unique structural features and various biological activities. In this study, twenty-three alkaloids were identified from Crinum amabile by GC-MS and two new structures (augustine N-oxide and buphanisine N-oxide) were structurally elucidated by NMR. Anti-parasitic and cholinesterase (AChE and BuChE) inhibitory activities of six alkaloids isolated from this species, including the two new compounds, are described herein. None of the alkaloids isolated from C. amabile gave better results than the reference drugs, so it was possible to conclude that the N-oxide group does not increase their therapeutic potential.
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50
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Tshitenge DT, Feineis D, Mudogo V, Kaiser M, Brun R, Seo EJ, Efferth T, Bringmann G. Mbandakamine-Type Naphthylisoquinoline Dimers and Related Alkaloids from the Central African Liana Ancistrocladus ealaensis with Antiparasitic and Antileukemic Activities. JOURNAL OF NATURAL PRODUCTS 2018; 81:918-933. [PMID: 29560715 DOI: 10.1021/acs.jnatprod.7b01041] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Four new dimeric naphthylisoquinoline alkaloids, michellamine A5 (2) and mbandakamines C-E (4-6), were isolated from the Congolese plant Ancistrocladus ealaensis, along with the known dimer mbandakamine A (3). They represent constitutionally unsymmetric dimers, each consisting of two 5,8'-coupled naphthylisoquinoline monomers. While the molecular halves of michellamine A5 (2) are linked via C-6' of both of the naphthalene moieties, i.e., via the least-hindered positions, so that the central biaryl axis is configurationally unstable and not an additional element of chirality, the mbandakamines 3-6 possess three consecutive stereogenic axes. Their monomeric units are linked through an unprecedented 6',1″-coupling in the binaphthalene core, leading to a high steric load, since the central axis is located in one of the peri-positions, neighboring one of the outer axes. In addition, four new 5,8'-coupled monomeric naphthylisoquinolines, viz., ancistroealaines C-F (7-10), were identified, along with four "naphthalene-devoid" tetra- and dihydroisoquinolines, named ealaines A-D (11-14). The new mbandakamines C (4) and D (5) showed pronounced activities against the malaria parasite Plasmodium falciparum, and they were likewise found to display strong cytotoxic activities against human leukemia (CCRF-CEM) and multi-drug-resistant tumor cells (CEM/ADR5000).
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Affiliation(s)
- Dieudonné Tshitenge Tshitenge
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
- Faculty of Pharmaceutical Sciences , University of Kinshasa , B.P. 212 Kinshasa XI, Democratic Republic of the Congo
| | - Doris Feineis
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
| | - Virima Mudogo
- Faculté des Sciences , Université de Kinshasa , B.P. 202, Kinshasa XI, Democratic Republic of the Congo
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
- University of Basel , Petersplatz 1 , CH-4003 Basel , Switzerland
| | - Reto Brun
- Swiss Tropical and Public Health Institute , Socinstrasse 57 , CH-4002 Basel , Switzerland
- University of Basel , Petersplatz 1 , CH-4003 Basel , Switzerland
| | - Ean-Jeong Seo
- Institute of Pharmacy and Biochemistry, Department of Pharmaceutical Biology , University of Mainz , Staudinger Weg 5 , D-55128 Mainz , Germany
| | - Thomas Efferth
- Institute of Pharmacy and Biochemistry, Department of Pharmaceutical Biology , University of Mainz , Staudinger Weg 5 , D-55128 Mainz , Germany
| | - Gerhard Bringmann
- Institute of Organic Chemistry , University of Würzburg , Am Hubland , D-97074 Würzburg , Germany
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