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Darwish AS, Mahmoud SS, Bayaumy FE. Microwave-assisted hydrothermal fabrication of hierarchical-stacked mesoporous decavanadate-intercalated ZnAl nanolayered double hydroxide to exterminate different developmental stages of Trichinella spiralis and Schistosoma mansoniin-vitro. Heliyon 2023; 9:e18110. [PMID: 37483817 PMCID: PMC10362335 DOI: 10.1016/j.heliyon.2023.e18110] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/25/2023] Open
Abstract
Hierarchically stacked mesoporous zinc-aluminium nanolayered-double-hydroxide intercalated with decavanadate (ZnAl-LDH-V10O28) is constructed using anion-exchange process via microwave-hydrothermal treatment. Physicochemical properties of ZnAl-LDH-V10O28 are characterized in detail. Decavanadate anions are intimately interacted with ZnAl-LDH nanosheets, generating highly ordered architecture of well-dimensioned stacking blocks of brucite-like nanolayers (∼8 nm). Such hierarchy improves surface-porosity and electrical-impedivity of ZnAl-LDH-V10O28 with declining its zeta-potential (ζav = 8.8 mV). In-vitro treatment of various developmental-stages of Trichinella spiralis and Schistosoma mansoni by ZnAl-LDH-V10O28 is recognized using parasitological and morphological (SEM/TEM) analyses. ZnAl-LDH-V10O28 exterminates muscle-larvae and adult-worms of Trichinella spiralis, and juvenile and adult Schistosoma mansoni, yielding near 100% mortality with rates achieving 5%/h within about 17 h of incubation. This parasiticidal behavior results from the symphony of biological activity gathering decavanadate and LDH-nanosheets. Indeed, ZnAl-LDH-V10O28 nanohybrid sample, as a promissory biocide for killing food-borne/waterborne parasites, becomes a futuristic research hotspot for studying its in-vivo bioactivity and impact-effectiveness on parasite molecular biology.
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Affiliation(s)
- Atef S. Darwish
- Department of Chemistry, Faculty of Science, Ain Shams University, 11566, Cairo, Egypt
| | - Soheir S. Mahmoud
- Schistosome Biological Materials Supply Program, Theodor Bilharz Research Institute, Giza, Egypt
| | - Fatma E.A. Bayaumy
- Zoology Department, Faculty of Women for Arts, Science and Education, Ain Shams University, Cairo, Egypt
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Amado PSM, Jesus AJL, Paixão JA, Fausto R, Cristiano MLS. Unravelling the structure of peroxides with antiparasitic activity: relative impact of a trioxolane or a tetraoxane pharmacophore on the overall molecular structure. Chempluschem 2022; 87:e202200207. [DOI: 10.1002/cplu.202200207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 08/04/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Patrícia S. M. Amado
- University of Algarve Faculty of Science and Technology: Universidade do Algarve Faculdade de Ciencias e Tecnologia Chemistry and Pharmacy PORTUGAL
| | - A. J. Lopes Jesus
- University of Coimbra Faculty of Pharmacy: Universidade de Coimbra Faculdade de Farmacia Chemistry PORTUGAL
| | - José A. Paixão
- University of Coimbra Faculty of Sciences and Technology: Universidade de Coimbra Faculdade de Ciencias e Tecnologia Department of Physics PORTUGAL
| | - Rui Fausto
- University of Coimbra Faculty of Sciences and Technology: Universidade de Coimbra Faculdade de Ciencias e Tecnologia Department of Chemistry PORTUGAL
| | - M. Lurdes S. Cristiano
- Universidade do Algarve Faculdade de Ciencias e Tecnologia Quimica e Farmácia Campus de Gambelas 8005-139 Faro PORTUGAL
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Faheem, Karan Kumar B, Chandra Sekhar KVG, Chander S, Kunjiappan S, Murugesan S. Medicinal chemistry perspectives of 1,2,3,4-tetrahydroisoquinoline analogs - biological activities and SAR studies. RSC Adv 2021; 11:12254-12287. [PMID: 35423735 PMCID: PMC8696937 DOI: 10.1039/d1ra01480c] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 03/22/2021] [Indexed: 12/16/2022] Open
Abstract
Isoquinoline alkaloids are a large group of natural products in which 1,2,3,4-tetrahydroisoquinolines (THIQ) form an important class. THIQ based natural and synthetic compounds exert diverse biological activities against various infective pathogens and neurodegenerative disorders. Due to these reasons, the THIQ heterocyclic scaffold has garnered a lot of attention in the scientific community which has resulted in the development of novel THIQ analogs with potent biological activity. The present review provides a much-needed update on the biological potential of THIQ analogs, their structural-activity relationship (SAR), and their mechanism of action. In addition, a note on commonly used synthetic strategies for constructing the core scaffold has also been discussed.
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Affiliation(s)
- Faheem
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Pilani Campus Pilani-333031 Rajasthan India
| | - Kondapalli Venkata Gowri Chandra Sekhar
- Department of Chemistry, Birla Institute of Technology and Science-Pilani Hyderabad Campus, Jawahar Nagar, Shameerpet Mandal, Medchal Dist. Hyderabad 500078 Telangana India
| | - Subhash Chander
- Amity Institute of Phytomedicine and Phytochemistry, Amity University Uttar Pradesh Noida-201313 India
| | - Selvaraj Kunjiappan
- Department of Biotechnology, Kalasalingam Academy of Research and Education Krishnankoil-626126 Tamil Nadu India
| | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani Pilani Campus Pilani-333031 Rajasthan India
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4
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Abou-El-Naga IF. Schistosoma mansoni sarco/endoplasmic reticulum Ca2+ ATPases (SERCA): role in reduced sensitivity to praziquantel. J Bioenerg Biomembr 2020; 52:397-408. [DOI: 10.1007/s10863-020-09843-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 06/08/2020] [Indexed: 01/17/2023]
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Dziwornu GA, Attram HD, Gachuhi S, Chibale K. Chemotherapy for human schistosomiasis: how far have we come? What's new? Where do we go from here? RSC Med Chem 2020; 11:455-490. [PMID: 33479649 PMCID: PMC7593896 DOI: 10.1039/d0md00062k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 03/22/2020] [Indexed: 01/11/2023] Open
Abstract
Globally, schistosomiasis threatens more than 700 million lives, mostly children, in poor localities of tropical and sub-tropical areas with morbidity due to acute and chronic pathological manifestations of the disease. After a century since the first antimonial-based drugs were introduced to treat the disease, anti-schistosomiasis drug development is again at a bottleneck with only one drug, praziquantel, available for treatment purposes. This review focuses on promising chemotypes as potential starting points in a drug discovery effort to meet the urgent need for new schistosomicides.
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Affiliation(s)
- Godwin Akpeko Dziwornu
- Department of Chemistry , University of Cape Town , Rondebosch 7701 , South Africa . ; Tel: +27 21 6502553
| | - Henrietta Dede Attram
- Department of Chemistry , University of Cape Town , Rondebosch 7701 , South Africa . ; Tel: +27 21 6502553
| | - Samuel Gachuhi
- Department of Chemistry , University of Cape Town , Rondebosch 7701 , South Africa . ; Tel: +27 21 6502553
| | - Kelly Chibale
- Department of Chemistry , University of Cape Town , Rondebosch 7701 , South Africa . ; Tel: +27 21 6502553
- Drug Discovery and Development Centre (H3D) , University of Cape Town , Rondebosch 7701 , South Africa
- Institute of Infectious Disease and Molecular Medicine , University of Cape Town , Rondebosch 7701 , South Africa
- South African Medical Research Council Drug Discovery and Development Research Unit , University of Cape Town , Rondebosch 7701 , South Africa
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Thomas CM, Timson DJ. The Mechanism of Action of Praziquantel: Can New Drugs Exploit Similar Mechanisms? Curr Med Chem 2020; 27:676-696. [DOI: 10.2174/0929867325666180926145537] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/06/2018] [Accepted: 08/20/2018] [Indexed: 11/22/2022]
Abstract
Praziquantel (PZQ) is the drug of choice for treating infection with worms from the
genus Schistosoma. The drug is effective, cheap and has few side effects. However, despite its
use in millions of patients for over 40 years its molecular mechanism of action remains elusive.
Early studies demonstrated that PZQ disrupts calcium ion homeostasis in the worm and
the current consensus is that it antagonises voltage-gated calcium channels. It is hypothesised
that disruption of these channels results in uncontrolled calcium ion influx leading to uncontrolled
muscle contraction and paralysis. However, other experimental studies have suggested
a role for myosin regulatory light chains and adenosine uptake in the drug’s mechanism of
action. Assuming voltage-gated calcium channels do represent the main molecular target of
PZQ, the precise binding site for the drug remains to be identified. Unlike other commonly
used anti-parasitic drugs, there are few definitive reports of resistance to PZQ in the literature.
The lack of knowledge about PZQ’s molecular mechanism(s) undermines our ability to predict
how resistance might arise and also hinder our attempts to develop alternative antischistosomal
drugs which exploit the same target(s). Some PZQ derivatives have been identified
which also kill or paralyse schistosomes in culture. However, none of these are in widespread
clinical use. There is a pressing need for fundamental research into the molecular mechanism(
s) of action of PZQ. Such research would enable new avenues for antischsistosomal
drug discovery.
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Affiliation(s)
- Charlotte M. Thomas
- School of Biological Sciences, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - David J. Timson
- School of Biological Sciences, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
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Thomas CM, Timson DJ. The Schistosoma mansoni tegumental allergen protein, SmTAL1: Binding to an IQ-motif from a voltage-gated ion channel and effects of praziquantel. Cell Calcium 2020; 86:102161. [PMID: 31981914 DOI: 10.1016/j.ceca.2020.102161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/30/2019] [Accepted: 01/10/2020] [Indexed: 11/28/2022]
Abstract
SmTAL1 is a calcium binding protein from the parasitic worm, Schistosoma mansoni. Structurally it is comprised of two domains - an N-terminal EF-hand domain and a C-terminal dynein light chain (DLC)-like domain. The protein has previously been shown to interact with the anti-schistosomal drug, praziquantel (PZQ). Here, we demonstrated that both EF-hands in the N-terminal domain are functional calcium ion binding sites. The second EF-hand appears to be more important in dictating affinity and mediating the conformational changes which occur on calcium ion binding. There is positive cooperativity between the four calcium ion binding sites in the dimeric form of SmTAL1. Both the EF-hand domain and the DLC-domain dimerise independently suggesting that both play a role in forming the SmTAL1 dimer. SmTAL1 binds non-cooperatively to PZQ and cooperatively to an IQ-motif from SmCav1B, a voltage-gated calcium channel. PZQ tends to strengthen this interaction, although the relationship is complex. These data suggest the hypothesis that SmTAL1 regulates at least one voltage-gated calcium channel and PZQ interferes with this process. This may be important in the molecular mechanism of this drug. It also suggests that compounds which bind SmTAL1, such as six from the Medicines for Malaria Box identified in this work, may represent possible leads for the discovery of novel antagonists.
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Affiliation(s)
- Charlotte M Thomas
- School of Biological Sciences and Institute for Global Food Security, Queen's University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast, BT9 7BL, UK
| | - David J Timson
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton, BN2 4GJ, UK.
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Vil’ VA, Terent’ev AO, Mulina OM. Bioactive Natural and Synthetic Peroxides for the Treatment of Helminth and Protozoan Pathogens: Synthesis and Properties. Curr Top Med Chem 2019; 19:1201-1225. [DOI: 10.2174/1568026619666190620143848] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 12/11/2022]
Abstract
The significant spread of helminth and protozoan infections, the uncontrolled intake of the
known drugs by a large population, the emergence of resistant forms of pathogens have prompted people
to search for alternative drugs. In this review, we have focused attention on structures and synthesis of
peroxides active against parasites causing neglected tropical diseases and toxoplasmosis. To date, promising
active natural, semi-synthetic and synthetic peroxides compounds have been found.
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Affiliation(s)
- Vera A. Vil’
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russian Federation
| | - Alexander O. Terent’ev
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russian Federation
| | - Olga M. Mulina
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospekt 47, Moscow, 119991, Russian Federation
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9
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Cunha FC, Secchi AR, Souza MB, Barreto AG. Separation of praziquantel enantiomers using simulated moving bed chromatographic unit with performance designed for semipreparative applications. Chirality 2019; 31:583-591. [DOI: 10.1002/chir.23084] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/11/2019] [Accepted: 05/13/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Felipe C. Cunha
- Programa de Engenharia Química/COPPEUniversidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - Argimiro R. Secchi
- Programa de Engenharia Química/COPPEUniversidade Federal do Rio de Janeiro Rio de Janeiro Brazil
- EPBQ/EQInstitutionUniversidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - Mauricio B. Souza
- Programa de Engenharia Química/COPPEUniversidade Federal do Rio de Janeiro Rio de Janeiro Brazil
- EPBQ/EQInstitutionUniversidade Federal do Rio de Janeiro Rio de Janeiro Brazil
| | - Amaro G. Barreto
- EPBQ/EQInstitutionUniversidade Federal do Rio de Janeiro Rio de Janeiro Brazil
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da Silva VBR, Boucherle B, El-Methni J, Hoffmann B, da Silva AL, Fortune A, de Lima MDCA, Thomas A. Could we expect new praziquantel derivatives? A meta pharmacometrics/pharmacoinformatics analysis of all antischistosomal praziquantel derivatives found in the literature. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2019; 30:383-401. [PMID: 31144535 DOI: 10.1080/1062936x.2019.1607898] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 04/11/2019] [Indexed: 06/09/2023]
Abstract
Praziquantel (PZQ) is the first line drug for the treatment of human Schistosoma spp. worm infections. However, it suffers from low activity towards immature stages of the worm, and its prolonged use induces resistance/tolerance. During the last 40 years, 263 PZQ analogues have been synthesized and tested against Schistosoma spp. worms, but less than 10% of them showed significant activity. Here, we propose a rationalization of the chemical space of the PZQ derivatives by a ligand-based approach. First, we constructed an in-house database with all PZQ derivatives available in the literature. This analysis shows a high heterogeneity in the data. Fortunately, all studies include PZQ as a reference, permitting the classification of compounds into three classes according to their activities. Models involving ligand-based pharmacophore and logistic regression were performed. Five physicochemical parameters were identified as the best to explain the biological activity. In the end, we proposed new PZQ derivatives with modifications at positions 1 and 7, we analysed them with our models, and we observed that they can be more active than the previously synthesized derivatives. The main goal of this work was to conduct the most valuable meta-pharmacometrics/pharmacoinformatics analysis with all Praziquantel medicinal chemistry data available in the literature.
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Affiliation(s)
- V B Ribeiro da Silva
- a CNRS, DPM , Université Grenoble Alpes , Grenoble , France
- b Departamento de Antibióticos (DANTI) , Universidade Federal de Pernambuco (UFPE) , Recife , Brazil
| | - B Boucherle
- a CNRS, DPM , Université Grenoble Alpes , Grenoble , France
| | - J El-Methni
- c MAP5, UMR CNRS , Université Paris Descartes, Sorbonne Paris Cité , Paris , France
| | - B Hoffmann
- d UMR CNRS 7590, Museum National d'Histoire Naturelle, IRD UMR 206, IUC, IMPMC , Sorbonne Universités, UPMC Univ Paris , Paris , France
| | - A L da Silva
- e Universidade Federal do Vale do São Francisco, Univasf, Campus Paulo Afonso , Paulo Afonso , Brazil
| | - A Fortune
- a CNRS, DPM , Université Grenoble Alpes , Grenoble , France
| | - M do Carmo Alves de Lima
- b Departamento de Antibióticos (DANTI) , Universidade Federal de Pernambuco (UFPE) , Recife , Brazil
| | - A Thomas
- a CNRS, DPM , Université Grenoble Alpes , Grenoble , France
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Vil' VA, Yaremenko IA, Ilovaisky AI, Terent'ev AO. Peroxides with Anthelmintic, Antiprotozoal, Fungicidal and Antiviral Bioactivity: Properties, Synthesis and Reactions. Molecules 2017; 22:E1881. [PMID: 29099089 PMCID: PMC6150334 DOI: 10.3390/molecules22111881] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 10/30/2017] [Indexed: 11/23/2022] Open
Abstract
The biological activity of organic peroxides is usually associated with the antimalarial properties of artemisinin and its derivatives. However, the analysis of published data indicates that organic peroxides exhibit a variety of biological activity, which is still being given insufficient attention. In the present review, we deal with natural, semi-synthetic and synthetic peroxides exhibiting anthelmintic, antiprotozoal, fungicidal, antiviral and other activities that have not been described in detail earlier. The review is mainly concerned with the development of methods for the synthesis of biologically active natural peroxides, as well as its isolation from natural sources and the modification of natural peroxides. In addition, much attention is paid to the substantially cheaper biologically active synthetic peroxides. The present review summarizes 217 publications mainly from 2000 onwards.
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Affiliation(s)
- Vera A Vil'
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospekt, 119991 Moscow, Russia.
- Faculty of Chemical and Pharmaceutical Technology and Biomedical Products, D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, 125047 Moscow, Russia.
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, 143050 Moscow, Russia.
| | - Ivan A Yaremenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospekt, 119991 Moscow, Russia.
- Faculty of Chemical and Pharmaceutical Technology and Biomedical Products, D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, 125047 Moscow, Russia.
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, 143050 Moscow, Russia.
| | - Alexey I Ilovaisky
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospekt, 119991 Moscow, Russia.
| | - Alexander O Terent'ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prospekt, 119991 Moscow, Russia.
- Faculty of Chemical and Pharmaceutical Technology and Biomedical Products, D. I. Mendeleev University of Chemical Technology of Russia, 9 Miusskaya Square, 125047 Moscow, Russia.
- All-Russian Research Institute for Phytopathology, B. Vyazyomy, 143050 Moscow, Russia.
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da Silva VBR, Campos BRKL, de Oliveira JF, Decout JL, do Carmo Alves de Lima M. Medicinal chemistry of antischistosomal drugs: Praziquantel and oxamniquine. Bioorg Med Chem 2017; 25:3259-3277. [DOI: 10.1016/j.bmc.2017.04.031] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/21/2017] [Accepted: 04/26/2017] [Indexed: 12/20/2022]
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Praziquantel for Schistosomiasis: Single-Drug Metabolism Revisited, Mode of Action, and Resistance. Antimicrob Agents Chemother 2017; 61:AAC.02582-16. [PMID: 28264841 DOI: 10.1128/aac.02582-16] [Citation(s) in RCA: 217] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Schistosomiasis, a major neglected tropical disease, affects more than 250 million people worldwide. Treatment of schistosomiasis has relied on the anthelmintic drug praziquantel (PZQ) for more than a generation. PZQ is the drug of choice for the treatment of schistosomiasis; it is effective against all major forms of schistosomiasis, although it is less active against juvenile than mature parasites. A pyrazino-isoquinoline derivative, PZQ is not considered to be toxic and generally causes few or transient, mild side effects. Increasingly, mass drug administration targeting populations in sub-Saharan Africa where schistosomiasis is endemic has led to the appearance of reduced efficacy of PZQ, which portends the selection of drug-resistant forms of these pathogens. The synthesis of improved derivatives of PZQ is attracting attention, e.g., in the (i) synthesis of drug analogues, (ii) rational design of pharmacophores, and (iii) discovery of new compounds from large-scale screening programs. This article reviews reports from the 1970s to the present on the metabolism and mechanism of action of PZQ and its derivatives against schistosomes.
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Exfoliated Egyptian kaolin immobilized heteropolyoxotungstate nanocomposite as an innovative antischistosomal agent: In vivo and in vitro bioactive studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:717-730. [DOI: 10.1016/j.msec.2015.10.074] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 09/23/2015] [Accepted: 10/23/2015] [Indexed: 12/26/2022]
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15
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Yao H, Liu F, Chen J, Li Y, Cui J, Qiao C. Antischistosomal activity of N,N'-arylurea analogs against Schistosoma japonicum. Bioorg Med Chem Lett 2016; 26:1386-90. [PMID: 26856921 DOI: 10.1016/j.bmcl.2016.01.075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 01/23/2016] [Accepted: 01/27/2016] [Indexed: 10/22/2022]
Abstract
Although the antischistosomal activities of N,N'-arylurea analogs were reported, systematic structure-activity relationships have not been conducted. In this Letter, we reported the design, synthesis and evaluation of 45 N,N'-arylurea analogs. Among these prepared compounds, 13 compounds were urea linker modified and 32 were N,N'-arylurea derivatives. The activity evaluation revealed 12 analogs exhibited IC50 values lower than 22.6μM, and 7 of them had IC50 less than 10μM against the juvenile Schistosoma japonicum in vitro. Their worm killing potency was even higher against adult worm. Unfortunately, low to moderate worm burden reduction of 0-33.4% was recorded after administration of a single oral dose of 200mg/kg or 400mg/kg to mice harboring S. japonicum.
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Affiliation(s)
- Houzong Yao
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, College of Pharmaceutical Science, Soochow University, 199 Ren Ai Road, Suzhou 215123, PR China
| | - Fengyou Liu
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, College of Pharmaceutical Science, Soochow University, 199 Ren Ai Road, Suzhou 215123, PR China
| | - Jinglei Chen
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, College of Pharmaceutical Science, Soochow University, 199 Ren Ai Road, Suzhou 215123, PR China
| | - Yan Li
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, College of Pharmaceutical Science, Soochow University, 199 Ren Ai Road, Suzhou 215123, PR China
| | - Jinhao Cui
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, College of Pharmaceutical Science, Soochow University, 199 Ren Ai Road, Suzhou 215123, PR China
| | - Chunhua Qiao
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, College of Pharmaceutical Science, Soochow University, 199 Ren Ai Road, Suzhou 215123, PR China.
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Song LJ, Luo H, Fan WH, Wang GP, Yin XR, Shen S, Wang J, Jin Y, Zhang W, Gao H, Liu Q, Wang WL, Feng B, Yu CX. Oxadiazole-2-oxides may have other functional targets, in addition to SjTGR, through which they cause mortality in Schistosoma japonicum. Parasit Vectors 2016; 9:26. [PMID: 26791563 PMCID: PMC4721062 DOI: 10.1186/s13071-016-1301-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 01/08/2016] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Schistosomiasis is one of the world's major public health problems. Besides praziquantel (PZQ), there is currently no other effective treatment against schistosomiasis. The development of new antischistosomal agents to curb the emergence of PZQ resistance should be a high priority. Oxadiazole-2-oxides have been identified as potential antischistosomal reagents, with thioredoxin glutathione reductase (TGR) being one of their molecular targets. METHODS To develop novel treatment reagents against Schistosoma japonicum, 30 novel oxadiazole-2-oxides were synthesised and their antischistosomal activities on juvenile and adult S. japonicum were evaluated in vitro and in vivo. Their inhibitory activities against S. japonicum thioredoxin glutathione reductase (SjTGR) were also analysed. RESULTS Most of the oxadiazole-2-oxides showed good juvenile and adult S. japonica killing activities in vitro. However, the antischistosomal effects of these compounds were not positively correlated with either their inhibition of SjTGR, or with nitric oxide (NO) release. Compounds 4a, 4b, 7c, 13, 16 and 20 resulted in 87.7%, 83.1%, 87.1%, 84.6%, 90.8% and 69.5%, respectively, mortality in the adult worms, when used to treat infected mice at schistosomula stage. These mortality rates were similar to or higher than that of artemisinin. Furthermore, compounds 4a and 16 resulted in 66.7% and 69.4% reductions in the worm burdens, respectively, when infected mice were treated at the adult worm stage. These treatment effects were similar to PZQ. No differences in activity of the oxadiazole-2-oxides against female and male adult worms were observed. The toxicity of the oxadiazole-2-oxides on mammalian cells appeared to be similar to, or less than, that of PZQ. CONCLUSIONS The antischistosomal activity of the oxadiazole-2-oxides does not depend on NO production or the inhibition of SjTGR activity. There may be other functional targets of the oxadiazole-2-oxides in S. japonicum. Several of the novel oxadiazole-2-oxides synthesised in this study could be used to develop novel antischistosomal drugs and explore potential molecular targets.
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Affiliation(s)
- Li-Jun Song
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Huan Luo
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, China.
| | - Wen-Hua Fan
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, China.
| | - Gu-Ping Wang
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, China.
| | - Xu-Ren Yin
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Shuang Shen
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Jie Wang
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Yi Jin
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Wei Zhang
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Hong Gao
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Qian Liu
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
| | - Wen-Long Wang
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, China.
| | - Bainian Feng
- School of Pharmaceutical Science, Jiangnan University, Wuxi, 214122, China.
| | - Chuan-Xin Yu
- Key Laboratory on Technology for Disease Prevention and Control, Ministry of Health, Jiangsu Provincial Key laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, 214064, China.
- Public Health Research Center, Jiangnan University, Wuxi, 214122, China.
- Medical College, Jiangnan University, Wuxi, 214122, China.
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Design, synthesis and biological evaluation of praziquantel and endoperoxide conjugates as antischistosomal agents. Future Med Chem 2015; 7:713-25. [DOI: 10.4155/fmc.15.20] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Background: The widespread use of praziquantel for the treatment of schistosomiasis has led to concerns over the potential development of drug resistance. Therefore, the discovery of novel antischistosomal agents is imperative. In this study, a series of praziquantel and endoperoxide conjugates were synthesized and evaluated as potential antischistosomal agents. Results: Some compounds exhibited high efficacy against both adult and juvenile Schistosoma, in in vitro studies. Structure-activity relationship (SAR) analysis revealed that compounds with amide bond linker and cyclopentyl adjacent to the 1,2,4,5-tetraxane pharmacophore displayed the highest efficacy. Overall, compounds showed consistent activity against Schistosoma japonicum and Schistosoma mansoni. In vivo study resulted in moderate but statistically significant activity. Conclusion: Important preliminary results were obtained from thorough activity evaluation of praziquantel-endoperoxide conjugates. Further pharmacokinetic property investigation is necessary to improve in vivo efficacy.
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Dong L, Duan W, Chen J, Sun H, Qiao C, Xia CM. An artemisinin derivative of praziquantel as an orally active antischistosomal agent. PLoS One 2014; 9:e112163. [PMID: 25386745 PMCID: PMC4227710 DOI: 10.1371/journal.pone.0112163] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Accepted: 10/13/2014] [Indexed: 12/21/2022] Open
Abstract
Background Schistosomiasis is a major health problem in tropical and sub-tropical areas caused by species of trematode belonging to the genus Schistosoma. The treatment and control of this disease has been relying on the use of a single drug praziquantel. However, the drug resistance concern urged the development of new drugs against schistosoma. Here, we report our systematic biological evaluation of DW-3-15, a new lead compound developed based on our conjugation design rationale as an effective anti-schistosomal agent. Methodology/Principal Findings The antischistosomal activity of DW-3-15 was systematically evaluated in S. japonicum infected mouse model for its stage-sensitivity and dose response. The results revealed that DW-3-15 exhibited 60–85% worm reduction rate against different development stage of worm. Scanning electron microscopy (SEM) observation indicated that DW-3-15 may damage to the tegument of male schistosomes. Conclusions/Significance Our results demonstrated that DW-3-15 showed potent anti-schistosomal activities in vivo. The results strongly support our conjugation design strategy of artemisinin analogs and further development of DW-3-15 as a new lead compound as anti-schistosomal agent.
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Affiliation(s)
- Lanlan Dong
- College of Medical Science, Soochow University, Suzhou, China
| | - Wenwen Duan
- College of Medical Science, Soochow University, Suzhou, China
| | - Jinglei Chen
- College of Medical Science, Soochow University, Suzhou, China
| | - Huan Sun
- College of Medical Science, Soochow University, Suzhou, China
| | - Chunhua Qiao
- College of Medical Science, Soochow University, Suzhou, China
- * E-mail: (CQ); (CX)
| | - Chao-ming Xia
- College of Medical Science, Soochow University, Suzhou, China
- * E-mail: (CQ); (CX)
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Seki M, Ogiku T. A diastereoselective construction of pyrazinoisoquinoline skeletons via tandem cyclization of phenylalanine derivatives: a facile synthesis of optically active pyrazinoisoquinolines. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Cedillo-Cruz A, Aguilar MI, Jung-Cook H. (S)-(+)-cis-4'-Benzyl-oxypraziquantel. Acta Crystallogr Sect E Struct Rep Online 2013; 69:o1835-6. [PMID: 24454256 PMCID: PMC3885080 DOI: 10.1107/s1600536813031735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 11/20/2013] [Indexed: 05/28/2023]
Abstract
The asymmetric unit of the title compound, C26H30N2O3 {systematic name (S)-(+)-2-[cis-4-(benzyloxy)cyclohexanecarbonyl]-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinolin-4-one}, consists of two independent molecules in which the O= Camide group is syn to the N—C(C=Olactam) moiety, making dihedral angles of 2.0 (8) and 3.7 (8)°. The conformation of the 1,4-disubstituted cyclohexane ring is cis in each independent molecule, with the carbonyl group occupying an equatorial position and the benzyloxy group an axial position. In one molecule, two C and one O atom of the benzyloxy group are disordered over two sets of sites, with a refined occupancy ratio of 0.772 (8):0.228 (8). In the crystal, molecules are linked by C—H⋯O interactions, forming ribbons parallel to the b-axis direction.
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Affiliation(s)
- Alberto Cedillo-Cruz
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, DF, Mexico
| | - María Isabel Aguilar
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, DF, Mexico
| | - Helgi Jung-Cook
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, DF, Mexico
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21
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Synthesis and SAR studies of praziquantel derivatives with activity against Schistosoma japonicum. Molecules 2013; 18:9163-78. [PMID: 23912271 PMCID: PMC6269691 DOI: 10.3390/molecules18089163] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 07/24/2013] [Accepted: 07/25/2013] [Indexed: 11/17/2022] Open
Abstract
The synthesis and structure-activity relationship (SAR) studies of praziquantel derivatives with activity against adult Schistosoma japonicum are described. Several of them showed better worm killing activity than praziquantel and could serve as leads for further optimization.
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22
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Chen J, Sun W, Yang J, Sun H, Wang Z, Dong L, Qiao C, Xia CM. Development of a novel class of pyrrolo-[1,2,5]benzothiadiazepine derivatives as potential anti-schistosomal agents. Bioorg Med Chem Lett 2013; 23:3785-7. [DOI: 10.1016/j.bmcl.2013.04.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 04/24/2013] [Accepted: 04/30/2013] [Indexed: 10/26/2022]
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23
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Wang ZX, Chen JL, Qiao C. Praziquantel Derivatives with Antischistosomal Activity: Aromatic Ring Modification. Chem Biol Drug Des 2013; 82:216-25. [DOI: 10.1111/cbdd.12153] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Revised: 02/19/2013] [Accepted: 04/15/2013] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi-xia Wang
- College of Pharmaceutical Science; Soochow University; 199 RenAi Road; Suzhou; 215123; Jiangsu; China
| | - Jing-lei Chen
- College of Pharmaceutical Science; Soochow University; 199 RenAi Road; Suzhou; 215123; Jiangsu; China
| | - Chunhua Qiao
- College of Pharmaceutical Science; Soochow University; 199 RenAi Road; Suzhou; 215123; Jiangsu; China
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LC-MS/MS method for the simultaneous quantitation of three active components derived from a novel prodrug against schistosome infection. J Pharm Biomed Anal 2013; 83:186-93. [PMID: 23747748 DOI: 10.1016/j.jpba.2013.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 05/05/2013] [Accepted: 05/07/2013] [Indexed: 11/23/2022]
Abstract
Schistosomiasis is an infectious disease that has been recognized as a severe health burden for some regions of the world. While praziquantel is the drug of choice, there is an unmet medical need for novel therapies with greater efficacy and resistant profile. DW-3-15 is a novel and promising prodrug possessing both adult and juvenile schistosomes killing capability. Its proposed hydrolytic products, artesunate (ARS), dihydroartemisinin (DHA) and 10-hydroxypraziquantel (10-OHPZQ), are all active in preventing schistosomal infection in relevant disease models. To support pharmacokinetic and PK-PD studies of DW-3-15, a simple, specific and rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the simultaneous determination of the three active components in rat plasma. Using a short C18 column (2.1 mm × 50 mm, 5 μm) with linear gradient, a baseline resolution of the three analytes and corresponding internal standards was achieved with a total run time of 6 min. Mass detection was carried out by electrospray ionization in positive MRM mode with ion transitions of m/z 402.2→m/z 267.3 for ARS, m/z 302.2→m/z 163.1 for DHA, and m/z 329.2→m/z 219.4 for 10-OHPZQ. The method was linear over concentration ranges of 1.0-500 ng/mL for ARS, 5.0-2500 ng/mL for DHA, and 1.0-500 ng/mL for 10-OHPZQ. The accuracy was within ±10.0% for ARS, ±6.4% for DHA, and ±13.0% for 10-OHPZQ. The within-run and between-run precision of all three analytes at four concentrations tested were less than 15%, except at the LLOQ for DHA which was between 15 and 20%. The method was successfully applied to pharmacokinetic evaluation of DW-3-15 in rats following intravenous administration.
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Ingram K, Yaremenko IA, Krylov IB, Hofer L, Terent'ev AO, Keiser J. Identification of antischistosomal leads by evaluating bridged 1,2,4,5-tetraoxanes, alphaperoxides, and tricyclic monoperoxides. J Med Chem 2012; 55:8700-11. [PMID: 23013253 DOI: 10.1021/jm3009184] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Although antischistosomal properties of peroxides were studied in recent years, systematic structure-activity relationships have not been conducted. We evaluated the antischistosomal potential of 64 peroxides belonging to bridged 1,2,4,5-tetraoxanes, alphaperoxides, and tricyclic monoperoxides. Thirty-nine compounds presented IC₅₀ values <15 μM on newly transformed schistosomula. Active drugs featured phenyl-, adamantane-, or alkyl residues at the methylene bridge. Lower susceptibility was documented on adult schistosomes, with most hit compounds being tricyclic monoperoxides (IC₅₀: 7.7-13.4 μM). A bridged 1,2,4,5-tetraoxane characterized by an adamantane residue showed the highest activity (IC₅₀: 0.3 μM) on adult Schistosoma mansoni . Studies with hemin and heme supplemented medium indicated that antischistosomal activation of peroxides is not necessarily triggered by iron porphyrins. Two compounds (tricyclic monoperoxide; bridged 1,2,4,5-tetraoxane) revealed high worm burden reductions in the chronic (WBR: 75.4-82.8%) but only moderate activity in the juvenile (WBR: 18.9-43.1%) S. mansoni mouse model. Our results might serve as starting point for the preparation and evaluation of related derivatives.
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Affiliation(s)
- Katrin Ingram
- Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, CH-4002 Basel, Switzerland
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