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Xu J, Wang JY, Huang P, Liu ZH, Wang YX, Zhang RZ, Ma HM, Zhou BY, Ni XY, Xiong CR, Xia CM. Schistosomicidal effects of histone acetyltransferase inhibitors against Schistosoma japonicum juveniles and adult worms in vitro. PLoS Negl Trop Dis 2024; 18:e0012428. [PMID: 39159234 PMCID: PMC11361729 DOI: 10.1371/journal.pntd.0012428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 08/29/2024] [Accepted: 08/02/2024] [Indexed: 08/21/2024] Open
Abstract
BACKGROUND Schistosomiasis is a relatively neglected parasitic disease that afflicts more than 250 million people worldwide, for which the control strategy relies mainly on mass treatment with the only available drug, praziquantel (PZQ). This approach is not sustainable and is a priority for developing novel drug candidates for the treatment and control of schistosomiasis. METHODOLOGYS/PRINCIPAL FINDINGS In our previous study, we found that DW-3-15, a kind of PZQ derivative, could significantly downregulate the expression of the histone acetyltransferase of Schistosoma japonicum (SjHAT). In this study, several commercially available HAT inhibitors, A485, C646 and curcumin were screened in vitro to verify their antischistosomal activities against S. japonicum juveniles and adults. Parasitological studies and scanning electron microscopy were used to study the primary action characteristics of HAT inhibitors in vitro. Quantitative real-time PCR was employed to detect the mRNA level of SjHAT after treatment with different HAT inhibitors. Our results demonstrated that curcumin was the most effective inhibitor against both juveniles and adults of S. japonicum, and its schistosomicidal effects were time- and dose dependent. However, A485 and C646 had limited antischistosomal activity. Scanning electron microscopy demonstrated that in comparison with DW-3-15, curcumin caused similar tegumental changes in male adult worms. Furthermore, both curcumin and DW-3-15 significantly decreased the SjHAT mRNA level, and curcumin dose-dependently reduced the SjHAT expression level in female, male and juvenile worms. CONCLUSIONS Among the three commercially available HATs, curcumin was the most potent against schistosomes. Both curcumin and our patent compound DW-3-15 markedly downregulated the expression of SjHAT, indicating that SjHAT may be a potential therapeutic target for developing novel antischistosomal drug candidates.
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Affiliation(s)
- Jing Xu
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou Medical College, Soochow University, Suzhou City, P. R. China
| | - Jing-Yi Wang
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Ping Huang
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Zi-Hao Liu
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Yu-Xin Wang
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Run-Ze Zhang
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Hui-Min Ma
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Bi-Yue Zhou
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Xiao-Yan Ni
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
| | - Chun-Rong Xiong
- Jiangsu Institute of Parasitic Diseases, Wuxi City, P. R. China
| | - Chao-Ming Xia
- Department of Parasitology, School of Basic Medical Sciences, Suzhou Medical College of Soochow University, Suzhou City, P. R. China
- MOE Key Laboratory of Geriatric Diseases and Immunology, Suzhou Key Laboratory of Pathogen Bioscience and Anti-infective Medicine, Suzhou Medical College, Soochow University, Suzhou City, P. R. China
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Jain S, Rana M, Choubey P, Kumar S. Schistosoma japonicum Associated Colorectal Cancer and Its Management. Acta Parasitol 2023; 68:723-734. [PMID: 37594685 DOI: 10.1007/s11686-023-00707-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 07/31/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND An association between Schistosoma japonicum and colorectal cancer in humans has been known since a long time; however, this association remains understudied and lacks comprehensive experimentation support. OBJECTIVE Various epidemiological and pathological studies have established the role of chronic inflammation as a major factor behind the induction of colorectal cancer. The aim of this review is to present the current knowledge on the association of Schistosoma japonicum with colorectal cancer. RESULT Mechanisms which lead to induction and progression of colorectal cancer are highlighted along with diagnosis and treatment for the same. Further, various methodologies, including mass drug administration, use of new drugs and vaccines, role of apoptosis, and histone-modifying enzymes, have been described which can either prevent the schistosomal infection itself or can check it from reaching an advanced stage. CONCLUSIONS Epidemiological, clinical, pathological and surgical studies suggest that Schistosoma japonicum is responsible for induction of colorectal cancer. However, thorough clinical studies are required to support and globally accept this notion. Further, methodologies highlighted in this work can be employed in order to take care of schistosomal infection or address the cancer induction and progression.
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Affiliation(s)
- Sidhant Jain
- Institute for Globally Distributed Open Research and Education (IGDORE), Rewari, Haryana, India.
| | - Meenakshi Rana
- Dyal Singh College, University of Delhi, Lodhi Road, Pragati Vihaar, New Delhi, 110003, India
| | - Pooja Choubey
- Department of Zoology, Gate No. 3, Chaatra Marg, University of Delhi, North Campus, Delhi, 110007, India
| | - Sahil Kumar
- Department of Pharmacology, ESIC Dental College and Hospital, Rohini, Sector-15, Delhi, 110089, India
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Padalino G, Celatka CA, Rienhoff Jr. HY, Kalin JH, Cole PA, Lassalle D, Forde-Thomas J, Chalmers IW, Brancale A, Grunau C, Hoffmann KF. Chemical modulation of Schistosoma mansoni lysine specific demethylase 1 (SmLSD1) induces wide-scale biological and epigenomic changes. Wellcome Open Res 2023; 8:146. [PMID: 37520936 PMCID: PMC10375057 DOI: 10.12688/wellcomeopenres.18826.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2023] [Indexed: 08/01/2023] Open
Abstract
Background: Schistosoma mansoni, a parasitic worm species responsible for the neglected tropical disease schistosomiasis, undergoes strict developmental regulation of gene expression that is carefully controlled by both genetic and epigenetic processes. As inhibition of S. mansoni epigenetic machinery components impairs key transitions throughout the parasite's digenetic lifecycle, a greater understanding of how epi-drugs affect molecular processes in schistosomes could lead to the development of new anthelmintics. Methods: In vitro whole organism assays were used to assess the anti-schistosomal activity of 39 Homo sapiens Lysine Specific Demethylase 1 (HsLSD1) inhibitors on different parasite life cycle stages. Moreover, tissue-specific stains and genomic analysis shed light on the effect of these small molecules on the parasite biology. Results: Amongst this collection of small molecules, compound 33 was the most potent in reducing ex vivo viabilities of schistosomula, juveniles, miracidia and adults. At its sub-lethal concentration to adults (3.13 µM), compound 33 also significantly impacted oviposition, ovarian as well as vitellarian architecture and gonadal/neoblast stem cell proliferation. ATAC-seq analysis of adults demonstrated that compound 33 significantly affected chromatin structure (intragenic regions > intergenic regions), especially in genes differentially expressed in cell populations (e.g., germinal stem cells, hes2 + stem cell progeny, S1 cells and late female germinal cells) associated with these ex vivo phenotypes. KEGG analyses further highlighted that chromatin structure of genes associated with sugar metabolism as well as TGF-beta and Wnt signalling were also significantly perturbed by compound 33 treatment. Conclusions: This work confirms the importance of histone methylation in S. mansoni lifecycle transitions, suggesting that evaluation of LSD1 - targeting epi-drugs may facilitate the search for next-generation anti-schistosomal drugs. The ability of compound 33 to modulate chromatin structure as well as inhibit parasite survival, oviposition and stem cell proliferation warrants further investigations of this compound and its epigenetic target SmLSD1.
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Affiliation(s)
- Gilda Padalino
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, CF10 3NB, UK
| | | | | | - Jay H. Kalin
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | - Philip A. Cole
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA
| | | | - Josephine Forde-Thomas
- Department of Life Sciences (DLS), Aberystwyth University, Aberystwyth, Wales, SY23 3DA, UK
| | - Iain W. Chalmers
- Department of Life Sciences (DLS), Aberystwyth University, Aberystwyth, Wales, SY23 3DA, UK
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, Wales, CF10 3NB, UK
| | | | - Karl F. Hoffmann
- Department of Life Sciences (DLS), Aberystwyth University, Aberystwyth, Wales, SY23 3DA, UK
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Saccoccia F, Pozzetti L, Gimmelli R, Butini S, Guidi A, Papoff G, Giannaccari M, Brogi S, Scognamiglio V, Gemma S, Ruberti G, Campiani G. Crystal structures of Schistosoma mansoni histone deacetylase 8 reveal a novel binding site for allosteric inhibitors. J Biol Chem 2022; 298:102375. [PMID: 35970392 PMCID: PMC9486128 DOI: 10.1016/j.jbc.2022.102375] [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: 06/09/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/30/2022] Open
Abstract
Parasitic diseases cause significant global morbidity and mortality particularly in the poorest regions of the world. Schistosomiasis, one of the most widespread neglected tropical diseases, affects more than 200 million people worldwide. Histone deacetylase (HDAC) inhibitors are prominent epigenetic drugs that are being investigated in the treatment of several diseases, including cancers and parasitic diseases. Schistosoma mansoni HDAC8 (SmHDAC8) is highly expressed in all life cycle stages of the parasite and selective inhibition is required in order to avoid undesirable off-target effects in the host. Herein, by X-ray crystal structures of SmHDAC8-inhibitor complexes, biochemical and phenotypic studies, we found two schistosomicidal spiroindoline-derivatives binding a novel site, next to Trp198, on the enzyme surface. We determined that by acting on this site, either by mutation of the Trp198 or by compound binding, a decrease in the activity of the enzyme is achieved. Remarkably, this allosteric site differs from the human counterpart; rather, it is conserved in all Schistosoma spp., as well as Rhabidoptera and Trematoda classes, thus paving the way for the design of HDAC8-selective allosteric inhibitors with improved properties.
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Affiliation(s)
- Fulvio Saccoccia
- Institute of Biochemistry and Cell Biology, Italian National Research Council (IBBC-CNR), Adriano Buzzati-Traverso Campus, Via Ercole Ramarini 32, 00015 Monterotondo Scalo, Rome, Italy.
| | - Luca Pozzetti
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, I-53100 Siena, Italy
| | - Roberto Gimmelli
- Institute of Biochemistry and Cell Biology, Italian National Research Council (IBBC-CNR), Adriano Buzzati-Traverso Campus, Via Ercole Ramarini 32, 00015 Monterotondo Scalo, Rome, Italy
| | - Stefania Butini
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, I-53100 Siena, Italy
| | - Alessandra Guidi
- Institute of Biochemistry and Cell Biology, Italian National Research Council (IBBC-CNR), Adriano Buzzati-Traverso Campus, Via Ercole Ramarini 32, 00015 Monterotondo Scalo, Rome, Italy
| | - Giuliana Papoff
- Institute of Biochemistry and Cell Biology, Italian National Research Council (IBBC-CNR), Adriano Buzzati-Traverso Campus, Via Ercole Ramarini 32, 00015 Monterotondo Scalo, Rome, Italy
| | - Marialaura Giannaccari
- Institute of Biochemistry and Cell Biology, Italian National Research Council (IBBC-CNR), Adriano Buzzati-Traverso Campus, Via Ercole Ramarini 32, 00015 Monterotondo Scalo, Rome, Italy
| | - Simone Brogi
- Department of Pharmacy, University of Pisa, Via Bonanno 6, I-56126 Pisa, Italy
| | - Viviana Scognamiglio
- Institute of Crystallography, Italian National Research Council, Department of Chemical Sciences and Materials Technologies, Via Salaria km 29.300, 00015 Monterotondo, Italy
| | - Sandra Gemma
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, I-53100 Siena, Italy
| | - Giovina Ruberti
- Institute of Biochemistry and Cell Biology, Italian National Research Council (IBBC-CNR), Adriano Buzzati-Traverso Campus, Via Ercole Ramarini 32, 00015 Monterotondo Scalo, Rome, Italy.
| | - Giuseppe Campiani
- Department of Biotechnology, Chemistry and Pharmacy, DoE Department of Excellence 2018-2022, University of Siena, via Aldo Moro 2, I-53100 Siena, Italy.
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5
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Ghazy E, Heimburg T, Lancelot J, Zeyen P, Schmidtkunz K, Truhn A, Darwish S, Simoben CV, Shaik TB, Erdmann F, Schmidt M, Robaa D, Romier C, Jung M, Pierce R, Sippl W. Synthesis, structure-activity relationships, cocrystallization and cellular characterization of novel smHDAC8 inhibitors for the treatment of schistosomiasis. Eur J Med Chem 2021; 225:113745. [PMID: 34392190 DOI: 10.1016/j.ejmech.2021.113745] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 01/22/2023]
Abstract
Schistosomiasis is a major neglected parasitic disease that affects more than 265 million people worldwide and for which the control strategy consists of mass treatment with the only available drug, praziquantel. In this study, we chemically optimized our previously reported benzhydroxamate-based inhibitors of Schistosoma mansoni histone deacetylase 8 (smHDAC8). Crystallographic analysis provided insights into the inhibition mode of smHDAC8 activity by the highly potent inhibitor 5o. Structure-based optimization of the novel inhibitors was carried out using the available crystal structures as well as docking studies on smHDAC8. The compounds were evaluated in screens for inhibitory activity against schistosome and human HDACs (hHDAC). The in vitro and docking results were used for detailed structure activity relationships. The synthesized compounds were further investigated for their lethality against the schistosome larval stage using a fluorescence-based assay. The most promising inhibitor 5o showed significant dose-dependent killing of the schistosome larvae and markedly impaired egg laying of adult worm pairs maintained in culture.
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Affiliation(s)
- Ehab Ghazy
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Tino Heimburg
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Julien Lancelot
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017- CIIL - Centre d'Infection et d'Immunité de Lille, F-59000, Lille, France
| | - Patrik Zeyen
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Karin Schmidtkunz
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Anne Truhn
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Salma Darwish
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Conrad V Simoben
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Tajith B Shaik
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Département de Biologie Structurale Intégrative, 67404, Illkirch Cedex, France
| | - Frank Erdmann
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Matthias Schmidt
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Dina Robaa
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany
| | - Christophe Romier
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), Département de Biologie Structurale Intégrative, 67404, Illkirch Cedex, France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Raymond Pierce
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017- CIIL - Centre d'Infection et d'Immunité de Lille, F-59000, Lille, France
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120, Halle/Saale, Germany.
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6
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Kalinin DV, Jana SK, Pfafenrot M, Chakrabarti A, Melesina J, Shaik TB, Lancelot J, Pierce RJ, Sippl W, Romier C, Jung M, Holl R. Structure-Based Design, Synthesis, and Biological Evaluation of Triazole-Based smHDAC8 Inhibitors. ChemMedChem 2020; 15:571-584. [PMID: 31816172 PMCID: PMC7187165 DOI: 10.1002/cmdc.201900583] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Indexed: 12/15/2022]
Abstract
Schistosomiasis is a neglected tropical disease caused by parasitic flatworms of the genus Schistosoma, which affects over 200 million people worldwide and leads to at least 300,000 deaths every year. In this study, initial screening revealed the triazole‐based hydroxamate 2 b (N‐hydroxy‐1‐phenyl‐1H‐1,2,3‐triazole‐4‐carboxamide) exhibiting potent inhibitory activity toward the novel antiparasitic target Schistosoma mansoni histone deacetylase 8 (smHDAC8) and promising selectivity over the major human HDACs. Subsequent crystallographic studies of the 2 b/smHDAC8 complex revealed key interactions between the inhibitor and the enzyme's active site, thus explaining the unique selectivity profile of the inhibitor. Further chemical modifications of 2 b led to the discovery of 4‐fluorophenoxy derivative 21 (1‐[5‐chloro‐2‐(4‐fluorophenoxy)phenyl]‐N‐hydroxy‐1H‐1,2,3‐triazole‐4‐carboxamide), a nanomolar smHDAC8 inhibitor (IC50=0.5 μM), exceeding the smHDAC8 inhibitory activity of 2 b and SAHA (vorinostat), while exhibiting an improved selectivity profile over the investigated human HDACs. Collectively, this study reveals specific interactions between smHDAC8 and the synthesized triazole‐based inhibitors and demonstrates that these small molecules represent promising lead structures, which could be further developed in the search for novel drugs for the treatment of schistosomiasis.
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Affiliation(s)
- Dmitrii V Kalinin
- Department of Chemistry Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany.,German Center for Infection Research (DZIF) partner site Hamburg-Lübeck-Borstel-Riems.,Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstr. 48, 48149, Münster, Germany.,Cells-in-Motion Cluster of Excellence (EXC 1003 - CiM), University of Münster, Schlossplatz 4, 48149, Münster, Germany
| | - Sunit K Jana
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstr. 48, 48149, Münster, Germany.,NRW Graduate School of Chemistry, University of Münster, Wilhelm-Klemm-Str. 10, 48149, Münster, Germany
| | - Maxim Pfafenrot
- Institute of Pharmaceutical and Medicinal Chemistry, University of Münster, Corrensstr. 48, 48149, Münster, Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstr. 25, 79104, Freiburg, Germany
| | - Jelena Melesina
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck Str. 4, 06120, Halle/Saale, Germany
| | - Tajith B Shaik
- Département de Biologie Structurale Intégrative Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, 67404, Illkirch Cedex, France
| | - Julien Lancelot
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, 59000, Lille, France
| | - Raymond J Pierce
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, 59000, Lille, France
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck Str. 4, 06120, Halle/Saale, Germany
| | - Christophe Romier
- Département de Biologie Structurale Intégrative Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, 67404, Illkirch Cedex, France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstr. 25, 79104, Freiburg, Germany
| | - Ralph Holl
- Department of Chemistry Institute of Organic Chemistry, University of Hamburg, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany.,German Center for Infection Research (DZIF) partner site Hamburg-Lübeck-Borstel-Riems
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7
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Monaldi D, Rotili D, Lancelot J, Marek M, Wössner N, Lucidi A, Tomaselli D, Ramos-Morales E, Romier C, Pierce RJ, Mai A, Jung M. Structure–Reactivity Relationships on Substrates and Inhibitors of the Lysine Deacylase Sirtuin 2 from Schistosoma mansoni (SmSirt2). J Med Chem 2019; 62:8733-8759. [DOI: 10.1021/acs.jmedchem.9b00638] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Daria Monaldi
- Institute of Pharmaceutical Sciences, University of Freiburg, Albertstr. 25, 79104 Freiburg, Germany
| | - Dante Rotili
- Dipartimento di Chimica e Tecnologie del Farmaco, “Sapienza” Università di Roma, 00185 Rome, Italy
| | - Julien Lancelot
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 8204—CIIL—Centre d’Infection et d’Immunité de Lille, 59000 Lille, France
| | - Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 67404 Illkirch Cedex, France
| | - Nathalie Wössner
- Institute of Pharmaceutical Sciences, University of Freiburg, Albertstr. 25, 79104 Freiburg, Germany
| | - Alessia Lucidi
- Dipartimento di Chimica e Tecnologie del Farmaco, “Sapienza” Università di Roma, 00185 Rome, Italy
| | - Daniela Tomaselli
- Dipartimento di Chimica e Tecnologie del Farmaco, “Sapienza” Università di Roma, 00185 Rome, Italy
| | - Elizabeth Ramos-Morales
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 67404 Illkirch Cedex, France
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 67404 Illkirch Cedex, France
| | - Raymond J. Pierce
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 8204—CIIL—Centre d’Infection et d’Immunité de Lille, 59000 Lille, France
| | - Antonello Mai
- Dipartimento di Chimica e Tecnologie del Farmaco, “Sapienza” Università di Roma, 00185 Rome, Italy
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, Albertstr. 25, 79104 Freiburg, Germany
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8
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Augusto RDC, Duval D, Grunau C. Effects of the Environment on Developmental Plasticity and Infection Success of Schistosoma Parasites - An Epigenetic Perspective. Front Microbiol 2019; 10:1475. [PMID: 31354641 PMCID: PMC6632547 DOI: 10.3389/fmicb.2019.01475] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 06/13/2019] [Indexed: 12/20/2022] Open
Abstract
Evidence of how environmental cues affect the phenotypes of, and compatibility between Schistosoma mansoni and their hosts come from studies in environmental parasitology and research on host diet and chemotherapeutic treatment. Schistosomes deal with a multitude of signals from the water environment as well as cues that come from their hosts, particularly in response to molecules that serve to recognize and destroy them, i.e., those molecules that arise from their hosts' immune systems. These interactions shape, not only the parasite's morphology, metabolism and behavior in the short-term, but also their infection success and development into different stage-specific phenotypes later in their life cycle, through the modification of the parasite's inheritance system. Developmental phenotypic plasticity of S. mansoni is based on epigenetic mechanisms which are also sensitive to environmental cues, but are poorly understood. Here, we argue that specific cues from the environment could lead to changes in parasite development and infectivity, and consequently, environmental signals that come from environmental control measures could be used to influence S. mansoni dynamics and transmission. This approach poses a challenge since epigenetic modification can lead to unexpected and undesired outcomes. However, we suggest that a better understanding of how environmental cues are interpreted by epigenome during schistosome development and host interactions could potentially be applied to control parasite's virulence. We review evidence about the role of environmental cues on the phenotype of S. mansoni and the compatibility between this parasite and its intermediate and definitive hosts.
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Padalino G, Ferla S, Brancale A, Chalmers IW, Hoffmann KF. Combining bioinformatics, cheminformatics, functional genomics and whole organism approaches for identifying epigenetic drug targets in Schistosoma mansoni. INTERNATIONAL JOURNAL FOR PARASITOLOGY-DRUGS AND DRUG RESISTANCE 2018; 8:559-570. [PMID: 30455056 PMCID: PMC6288008 DOI: 10.1016/j.ijpddr.2018.10.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023]
Abstract
Schistosomiasis endangers the lives of greater than 200 million people every year and is predominantly controlled by a single class chemotherapy, praziquantel (PZQ). Development of PZQ replacement (to combat the threat of PZQ insensitivity/resistance arising) or combinatorial (to facilitate the killing of PZQ-insensitive juvenile schistosomes) chemotherapies would help sustain this control strategy into the future. Here, we re-categorise two families of druggable epigenetic targets in Schistosoma mansoni, the histone methyltransferases (HMTs) and the histone demethylases (HDMs). Amongst these, a S. mansoni Lysine Specific Demethylase 1 (SmLSD1, Smp_150560) homolog was selected for further analyses. Homology modelling of SmLSD1 and in silico docking of greater than four thousand putative inhibitors identified seven (L1 – L7) showing more favourable binding to the target pocket of SmLSD1 vs Homo sapiens HsLSD1; six of these seven (L1 – L6) plus three structural analogues of L7 (L8 – L10) were subsequently screened against schistosomula using the Roboworm anthelmintic discovery platform. The most active compounds (L10 - pirarubicin > L8 – danunorubicin hydrochloride) were subsequently tested against juvenile (3 wk old) and mature (7 wk old) schistosome stages and found to impede motility, suppress egg production and affect tegumental surfaces. When compared to a surrogate human cell line (HepG2), a moderate window of selectivity was observed for the most active compound L10 (selectivity indices - 11 for schistosomula, 9 for juveniles, 1.5 for adults). Finally, RNA interference of SmLSD1 recapitulated the egg-laying defect of schistosomes co-cultivated in the presence of L10 and L8. These preliminary results suggest that SmLSD1 represents an attractive new target for schistosomiasis; identification of more potent and selective SmLSD1 compounds, however, is essential. Nevertheless, the approaches described herein highlight an interdisciplinary strategy for selecting and screening novel/repositioned anti-schistosomals, which can be applied to any druggable (epigenetic) target encoded by the parasite's genome. Schistosoma mansoni contains 27 histone methyltransferases (HMTs) and 14 histone demethylases (HDMs). S. mansoni lysine specific demethylase 1 (SmLSD1) is a druggable target. Schistosomes treated with the putative SmLSD1 inhibitor pirarubicin or siRNAs targeting SmLSD1 are less fecund.
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Affiliation(s)
- Gilda Padalino
- The Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, SY23 3DA, Wales, UK.
| | - Salvatore Ferla
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, CF10 3NB, United Kingdom.
| | - Andrea Brancale
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, CF10 3NB, United Kingdom.
| | - Iain W Chalmers
- The Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, SY23 3DA, Wales, UK.
| | - Karl F Hoffmann
- The Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, SY23 3DA, Wales, UK.
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10
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Caby S, Pagliazzo L, Lancelot J, Saliou JM, Bertheaume N, Pierce RJ, Roger E. Analysis of the interactome of Schistosoma mansoni histone deacetylase 8. PLoS Negl Trop Dis 2017; 11:e0006089. [PMID: 29155817 PMCID: PMC5722368 DOI: 10.1371/journal.pntd.0006089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 12/08/2017] [Accepted: 10/31/2017] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Histone deacetylase 8 from Schistosoma mansoni (SmHDAC8) is essential to parasite growth and development within the mammalian host and is under investigation as a target for the development of selective inhibitors as novel schistosomicidal drugs. Although some protein substrates and protein partners of human HDAC8 have been characterized, notably indicating a role in the function of the cohesin complex, nothing is known of the partners and biological function of SmHDAC8. METHODOLOGY/PRINCIPAL FINDINGS We therefore employed two strategies to characterize the SmHDAC8 interactome. We first used SmHDAC8 as a bait protein in yeast two-hybrid (Y2H) screening of an S. mansoni cDNA library. This allowed the identification of 49 different sequences encoding proteins. We next performed co-immunoprecipitation (Co-IP) experiments on parasite extracts with an anti-SmHDAC8 antibody. Mass spectrometry (MS) analysis allowed the identification of 160 different proteins. CONCLUSIONS/SIGNIFICANCE SmHDAC8 partners are involved in about 40 different processes, included expected functions such as the cohesin complex, cytoskeleton organization, transcriptional and translational regulation, metabolism, DNA repair, the cell cycle, protein dephosphorylation, proteolysis, protein transport, but also some proteasome and ribosome components were detected. Our results show that SmHDAC8 is a versatile deacetylase, potentially involved in both cytosolic and nuclear processes.
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Affiliation(s)
- Stéphanie Caby
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
| | - Lucile Pagliazzo
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
| | - Julien Lancelot
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
| | - Jean-Michel Saliou
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
| | - Nicolas Bertheaume
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
| | - Raymond J. Pierce
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
| | - Emmanuel Roger
- Univ. Lille, CNRS UMR 8204, INSERM U1019, CHU Lille, Institut Pasteur de Lille, Centre d'Infection et d'Immunité de Lille (CIIL), F-59000 Lille, France
- * E-mail:
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11
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Evolutionary relationships among protein lysine deacetylases of parasites causing neglected diseases. INFECTION GENETICS AND EVOLUTION 2017; 53:175-188. [DOI: 10.1016/j.meegid.2017.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 05/10/2017] [Accepted: 05/12/2017] [Indexed: 12/20/2022]
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12
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Stenzel K, Chakrabarti A, Melesina J, Hansen FK, Lancelot J, Herkenhöhner S, Lungerich B, Marek M, Romier C, Pierce RJ, Sippl W, Jung M, Kurz T. Isophthalic Acid-Based HDAC Inhibitors as Potent Inhibitors of HDAC8 fromSchistosoma mansoni. Arch Pharm (Weinheim) 2017. [DOI: 10.1002/ardp.201700096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Katharina Stenzel
- Institute of Pharmaceutical and Medicinal Chemistry; Heinrich-Heine-University; Düsseldorf Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences; Albert-Ludwigs-University Freiburg; Freiburg Germany
| | - Jelena Melesina
- Institute of Pharmacy; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Finn K. Hansen
- Institute of Pharmaceutical and Medicinal Chemistry; Heinrich-Heine-University; Düsseldorf Germany
- Pharmaceutical/Medicinal Chemistry; Institute of Pharmacy; Leipzig University; Leipzig Germany
| | - Julien Lancelot
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille; U1019 UMR 8204CIIL - Centre d'Infection et d'Immunité de Lille; Lille France
| | - Simon Herkenhöhner
- Institute of Pharmaceutical and Medicinal Chemistry; Heinrich-Heine-University; Düsseldorf Germany
| | - Beate Lungerich
- Institute of Pharmaceutical and Medicinal Chemistry; Heinrich-Heine-University; Düsseldorf Germany
| | - Martin Marek
- IGBMC; Université de Strasbourg; Illkirch France
| | | | - Raymond. J. Pierce
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille; U1019 UMR 8204CIIL - Centre d'Infection et d'Immunité de Lille; Lille France
| | - Wolfgang Sippl
- Institute of Pharmacy; Martin-Luther-University Halle-Wittenberg; Halle (Saale) Germany
| | - Manfred Jung
- Institute of Pharmaceutical Sciences; Albert-Ludwigs-University Freiburg; Freiburg Germany
| | - Thomas Kurz
- Institute of Pharmaceutical and Medicinal Chemistry; Heinrich-Heine-University; Düsseldorf Germany
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13
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Cosseau C, Wolkenhauer O, Padalino G, Geyer KK, Hoffmann KF, Grunau C. (Epi)genetic Inheritance in Schistosoma mansoni: A Systems Approach. Trends Parasitol 2017; 33:285-294. [PMID: 28040375 PMCID: PMC6125318 DOI: 10.1016/j.pt.2016.12.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 11/25/2016] [Accepted: 12/02/2016] [Indexed: 12/27/2022]
Abstract
The G×E concept, in which genotype × environment interactions bring about the phenotype, is widely used to describe biological phenomena. We propose to extend the initial notion of the concept, replacing G by 'inheritance system'. This system, comprised of both genome and epigenome components, collectively interacts with the environment to shape the development of a phenotype. In the case of the human blood fluke Schistosoma mansoni, responsible for intestinal bilharzia, the phenotypic trait that is most relevant to global health is infection success. Taking a systems biology view we show how genetic and epigenetic interactions result in ephemeral, but also heritable, phenotypic variations that are important for infection success.
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Affiliation(s)
- Céline Cosseau
- University Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, University Montpellier, F-66860 Perpignan, France
| | - Olaf Wolkenhauer
- Dept of Systems Biology & Bioinformatics, University of Rostock, D-18051 Rostock, Germany; Stellenbosch Institute for Advanced Study (STIAS), Wallenberg Research Centre, Stellenbosch, South Africa
| | - Gilda Padalino
- Institute of Biological, Environmental and Rural Sciences (IBERS), Edward Llwyd Building, Room 3-31, Aberystwyth University, Ceredigion, SY23 3DA, UK
| | - Kathrin K Geyer
- Institute of Biological, Environmental and Rural Sciences (IBERS), Edward Llwyd Building, Room 3-31, Aberystwyth University, Ceredigion, SY23 3DA, UK
| | - Karl F Hoffmann
- Institute of Biological, Environmental and Rural Sciences (IBERS), Edward Llwyd Building, Room 3-31, Aberystwyth University, Ceredigion, SY23 3DA, UK
| | - Christoph Grunau
- University Perpignan Via Domitia, IHPE UMR 5244, CNRS, IFREMER, University Montpellier, F-66860 Perpignan, France.
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14
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Elsakkar MG, Eissa MM, Hewedy WA, Nassra RM, Elatrebi SF. Sodium valproate, a histone deacetylase inhibitor, with praziquantel ameliorates Schistosoma mansoni-induced liver fibrosis in mice. Life Sci 2016; 162:95-101. [PMID: 27528511 DOI: 10.1016/j.lfs.2016.08.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 08/07/2016] [Accepted: 08/10/2016] [Indexed: 11/17/2022]
Abstract
AIMS This study explores the potential antifibrotic effect of sodium valproate (SV), an inhibitor of class I histone deacetylase (HDAC) enzymes, and/or praziquantel (PZQ) on Schistosoma mansoni (S. mansoni)-induced liver fibrosis in mice. MAIN METHODS Male Swiss albino mice were divided into nine groups: group I- normal control (NC); group II- uninfected gum mucilage (GM) treated; group III- uninfected PZQ- treated; group IV- uninfected SV-treated; group V- control S. mansoni infected mice; group VI- infected GM-treated; group VII- infected PZQ-treated; group VIII- infected SV-treated; group IX- infected PZQ+SV treated. All SV administrations were 300mg/kg/day orally and administered for five weeks beginning on the 5th week post infection (WPI). All PZQ administrations were 500mg/kg/day orally and administered for 2 consecutive days beginning on the 7th WPI. Serum transforming growth factor-beta 1 (TGF-β1), tumor necrosis factor-alpha (TNF-α), hepatic hydroxyproline (Hyp) content, and liver function tests (AST and ALT) were determined. Specimens of the hepatic tissues were examined histologically. KEY FINDINGS Treatment of S. mansoni-infected mice with SV significantly decreased the serum levels of ALT, TGF-β1 and TNF-α, and the liver tissue hydroxyproline content compared with the S. mansoni infected untreated groups. Histologically, treatment with SV revealed regression of the granulomatous inflammatory reaction. Combined treatment with PZQ and SV produces more favorable biochemical results, and aborted granulomatous reaction compared with either drug alone. SIGNIFICANCE Sodium valproate is a promising anti-fibrotic agent. It demonstrated an anti-fibrotic effect in early stages of S. mansoni infection through downregulation of profibrogenic cytokines, and collagen deposition.
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Affiliation(s)
- Mohamed G Elsakkar
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Maha M Eissa
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Wafaa A Hewedy
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Rasha M Nassra
- Department of Medical Biochemistry, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Soha F Elatrebi
- Department of Clinical Pharmacology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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15
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Cai P, Gobert GN, You H, McManus DP. The Tao survivorship of schistosomes: implications for schistosomiasis control. Int J Parasitol 2016; 46:453-63. [PMID: 26873753 DOI: 10.1016/j.ijpara.2016.01.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 01/06/2016] [Accepted: 01/06/2016] [Indexed: 01/06/2023]
Abstract
Schistosomiasis, caused by blood flukes of the genus Schistosoma, is a major public health problem which contributes substantially to the economic and financial burdens of many nations in the developing world. An array of survival strategies, such as the unique structure of the tegument which acts as a major host-parasite interface, immune modulation mechanisms, gene regulation, and apoptosis and self-renewal have been adopted by schistosome parasites over the course of long-term evolution with their mammalian definitive hosts. Recent generation of complete schistosome genomes together with numerous biological, immunological, high-throughput "-omics" and gene function studies have revealed the Tao or strategies that schistosomes employ not only to promote long-term survival, but also to ensure effective life cycle transmission. New scenarios for the future control of this important neglected tropical disease will present themselves as our understanding of these Tao increases.
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Affiliation(s)
- Pengfei Cai
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Queensland, Australia.
| | - Geoffrey N Gobert
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Queensland, Australia
| | - Hong You
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Queensland, Australia
| | - Donald P McManus
- Molecular Parasitology Laboratory, QIMR Berghofer Medical Research Institute, Queensland, Australia.
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16
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Marek M, Shaik TB, Jung M, Sippl W, Pierce RJ, Romier C. Combattre les maladies négligées en ciblant sélectivement leurs enzymes épigénétiques : le cas de la désacétylase 8 (HDAC8) deSchistosoma mansoni. Biol Aujourdhui 2016; 210:311-320. [PMID: 28327287 DOI: 10.1051/jbio/2017001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 11/14/2022]
Abstract
Chromatin structure in eukaryotes and its modulation by epigenetic mechanisms enable the regulation of the different nuclear processes. Perturbation of epigenetic mechanisms can thus affect the proper functioning of cells, and numerous diseases have been linked to the deregulation of the activity of epigenetic effectors in human. The reversibility of epigenetic mechanisms has allowed the development of "Epigenetic drugs" or "Epidrugs". In a chemical biology approach, we have made use of the importance of eukaryotic epigenetic mechanisms to find drug leads that specifically affect pathogens responsible for neglected diseases. Our work on histone deacetylase 8 from Schistosoma mansoni (smHDAC8) has enabled us to design drug leads that show stronger selectivity for the pathogen enzyme than for its human homologs. Specifically, we have used a structure-based approach to understand the structural specificities of the smHDAC8 enzyme compared to the human enzymes, notably human HDAC8. The structure of smHDAC8 in complex with various pan-HDAC drugs led to the design of inhibitors that make use of all the structural specificities of this enzyme and that can be stabilized in the smHDAC8 catalytic pocket through a pathogen-specific clamp. Collectively, our results provide the proof of concept that epigenetic enzymes from pathogens can be targeted to develop anti-pathogenic epidrugs in the fight against neglected diseases. Our results also provide information that can be used to develop epidrugs to fight human diseases, including cancer.
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Affiliation(s)
- Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 67404 Illkirch Cedex, France
| | - Tajith B Shaik
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 67404 Illkirch Cedex, France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104 Freiburg, Germany
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, 06120 Halle/Saale, Germany
| | - Raymond J Pierce
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre d'Infection et d'Immunité de Lille, 59000 Lille, France
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 67404 Illkirch Cedex, France
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17
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Repurposing apoptosis-inducing cancer drugs to treat schistosomiasis. Future Med Chem 2015; 7:707-11. [DOI: 10.4155/fmc.14.164] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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18
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Kannan S, Melesina J, Hauser AT, Chakrabarti A, Heimburg T, Schmidtkunz K, Walter A, Marek M, Pierce RJ, Romier C, Jung M, Sippl W. Discovery of inhibitors of Schistosoma mansoni HDAC8 by combining homology modeling, virtual screening, and in vitro validation. J Chem Inf Model 2014; 54:3005-19. [PMID: 25243797 DOI: 10.1021/ci5004653] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Schistosomiasis, caused by S. mansoni, is a tropical disease that affects over 200 million people worldwide. A novel approach for targeting eukaryotic parasites is to tackle their dynamic epigenetic machinery that is necessary for the extensive phenotypic changes during their life cycle. We recently identified S. mansoni histone deacetylase 8 (smHDAC8) as a potential target for antiparasitic therapy. Here we present results from a virtual screening campaign on smHDAC8. Besides hydroxamates, several sulfonamide-thiazole derivatives were identified by a target-based virtual screening using a homology model of smHDAC8. In vitro testing of 75 compounds identified 8 hydroxamates as potent and lead-like inhibitors of the parasitic HDAC8. Solving of the crystal structure of smHDAC8 with two of the virtual screening hits confirmed the predicted binding mode.
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Affiliation(s)
- Srinivasaraghavan Kannan
- Department of Pharmaceutical Chemistry, University Halle-Wittenberg , 06120 Halle/Saale, Germany
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19
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Apoptosis in schistosomes: toward novel targets for the treatment of schistosomiasis. Trends Parasitol 2014; 30:75-84. [DOI: 10.1016/j.pt.2013.12.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 11/29/2013] [Accepted: 12/06/2013] [Indexed: 12/25/2022]
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20
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Gao F, Wang R, Liu M. Trichinella spiralis, potential model nematode for epigenetics and its implication in metazoan parasitism. Front Physiol 2014; 4:410. [PMID: 24454291 PMCID: PMC3887316 DOI: 10.3389/fphys.2013.00410] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Accepted: 12/26/2013] [Indexed: 01/02/2023] Open
Abstract
The recent discovery of DNA methylation in the nematode T.spiralis may raise the possibility of using it as a potential model organism for epigenetic studies instead of C. elegans, which is deficient in this important epigenetic modification. In contrast to the free-living nematode C. elegans, T. spiralis is a parasitic worm that possesses a complicated life cycle and undergoes a complex developmental regulation of genes. We emphasize that the differential methylomes in the different life-history stages of T. spiralis can provide insight on how DNA methylation is triggered and regulated. In particular, we have demonstrated that DNA methylation is involved in the regulation of its parasitism-related genes. Further computational analyses indicated that the regulatory machinery for DNA methylation can also be found in the T. spiralis genome. By a logical extension of this point, we speculate that comprehensively addressing the epigenetic machinery of T. spiralis may help to understand epigenetics in invertebrates. Furthermore, considering the implication of epigenetics in metazoan parasitism, using T. spiralis as an epigenetic model organism may further contribute to drug development against metazoan parasites.
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Affiliation(s)
- Fei Gao
- Science and Technology Department, BGI-Shenzhen, Beishan Industrial Zone Shenzhen, China
| | - Rui Wang
- Science and Technology Department, BGI-Shenzhen, Beishan Industrial Zone Shenzhen, China
| | - Mingyuan Liu
- Key Lab for Zoonosis Research, Ministry of Education, Institute of Zoonosis, Jilin University Changchun, China ; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses Yangzhou, China
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21
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Marek M, Kannan S, Hauser AT, Moraes Mourão M, Caby S, Cura V, Stolfa DA, Schmidtkunz K, Lancelot J, Andrade L, Renaud JP, Oliveira G, Sippl W, Jung M, Cavarelli J, Pierce RJ, Romier C. Structural basis for the inhibition of histone deacetylase 8 (HDAC8), a key epigenetic player in the blood fluke Schistosoma mansoni. PLoS Pathog 2013; 9:e1003645. [PMID: 24086136 PMCID: PMC3784479 DOI: 10.1371/journal.ppat.1003645] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 08/04/2013] [Indexed: 11/19/2022] Open
Abstract
The treatment of schistosomiasis, a disease caused by blood flukes parasites of the Schistosoma genus, depends on the intensive use of a single drug, praziquantel, which increases the likelihood of the development of drug-resistant parasite strains and renders the search for new drugs a strategic priority. Currently, inhibitors of human epigenetic enzymes are actively investigated as novel anti-cancer drugs and have the potential to be used as new anti-parasitic agents. Here, we report that Schistosoma mansoni histone deacetylase 8 (smHDAC8), the most expressed class I HDAC isotype in this organism, is a functional acetyl-L-lysine deacetylase that plays an important role in parasite infectivity. The crystal structure of smHDAC8 shows that this enzyme adopts a canonical α/β HDAC fold, with specific solvent exposed loops corresponding to insertions in the schistosome HDAC8 sequence. Importantly, structures of smHDAC8 in complex with generic HDAC inhibitors revealed specific structural changes in the smHDAC8 active site that cannot be accommodated by human HDACs. Using a structure-based approach, we identified several small-molecule inhibitors that build on these specificities. These molecules exhibit an inhibitory effect on smHDAC8 but show reduced affinity for human HDACs. Crucially, we show that a newly identified smHDAC8 inhibitor has the capacity to induce apoptosis and mortality in schistosomes. Taken together, our biological and structural findings define the framework for the rational design of small-molecule inhibitors specifically interfering with schistosome epigenetic mechanisms, and further support an anti-parasitic epigenome targeting strategy to treat neglected diseases caused by eukaryotic pathogens. Schistosomiasis, a neglected parasitic disease caused by flatworms of the genus Schistosoma, is responsible for hundreds of thousands of deaths yearly. Its treatment currently depends on a single drug, praziquantel, with reports of drug-resistant parasites. Human epigenetic enzymes, in particular histone deacetylases (HDACs), are predominantly attractive inhibitory targets for anti-cancer therapies. Validated scaffolds against these enzymes could also be used as leads in the search for novel specific drugs against schistosomiasis. In our study, we show that Schistosoma mansoni histone deacetylase 8 (smHDAC8) is a functional acetyl-L-lysine deacetylase that plays an important role in parasite infectivity and is therefore a relevant target for drug discovery. The determination of the atomic structures of smHDAC8 in complex with generic HDAC inhibitors revealed that the architecture of the smHDAC8 active site pocket differed significantly from its human counterparts and provided a framework for the development of inhibitors selectively interfering with schistosome epigenetic mechanisms. In agreement, this information enabled us to identify several small-molecule scaffolds that possess specific inhibitory effects on smHDAC8 and cause mortality in schistosomes. Our results provide the proof of concept that targeting epigenetic enzymes is a valid approach to treat neglected diseases caused by eukaryotic pathogens.
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Affiliation(s)
- Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
| | | | - Alexander-Thomas Hauser
- Institut für Pharmazeutische Wissenschaften, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Marina Moraes Mourão
- Genomics and Computational Biology Group, Center for Excellence in Bioinformatics, National Institute of Science and Technology in Tropical Diseases, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Stéphanie Caby
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Vincent Cura
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
| | - Diana A. Stolfa
- Institut für Pharmazeutische Wissenschaften, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Karin Schmidtkunz
- Institut für Pharmazeutische Wissenschaften, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Julien Lancelot
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Luiza Andrade
- Genomics and Computational Biology Group, Center for Excellence in Bioinformatics, National Institute of Science and Technology in Tropical Diseases, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Jean-Paul Renaud
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
| | - Guilherme Oliveira
- Genomics and Computational Biology Group, Center for Excellence in Bioinformatics, National Institute of Science and Technology in Tropical Diseases, Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Minas Gerais, Brazil
| | - Wolfgang Sippl
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
- Freiburg Institute of Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Manfred Jung
- Institut für Pharmazeutische Wissenschaften, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
- Freiburg Institute of Advanced Studies (FRIAS), Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Jean Cavarelli
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
| | - Raymond J. Pierce
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
- * E-mail: (RJP); (CR)
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
- * E-mail: (RJP); (CR)
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El Ridi RAF, Tallima HAM. Novel therapeutic and prevention approaches for schistosomiasis: review. J Adv Res 2012; 4:467-78. [PMID: 25685454 PMCID: PMC4293887 DOI: 10.1016/j.jare.2012.05.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 05/12/2012] [Accepted: 05/15/2012] [Indexed: 01/23/2023] Open
Abstract
Schistosomiasis is a debilitating disease affecting approximately 600 million people in 74 developing countries, with 800 million, mostly children at risk. To circumvent the threat of having praziquantel (PZQ) as the only drug used for treatment, several PZQ derivatives were synthesized, and drugs destined for other parasites were used with success. A plethora of plant-derived oils and extracts were found to effectively kill juvenile and adult schistosomes, yet none was progressed to pre- and clinical studies except an oleo-gum resin extracted from the stem of Commiphora molmol, myrrh, which action was challenged in several trials. We have proposed an essential fatty acid, a component of our diet and cells, the polyunsaturated fatty acid arachidonic acid (ARA) as a remedy for schistosomiasis, due to its ability to activate the parasite tegument-bound neutral sphingomyelinase, with subsequent hydrolysis of the apical lipid bilayer sphingomyelin molecules, allowing access of specific antibody molecules, and eventual worm attrition. This concept was convincingly supported using larval and adult Schistosoma mansoni and Schistosoma haematobium worms in in vitro experiments, and in vivo studies in inbred mice and outbred hamsters. Even if ARA proves to be an entirely effective and safe therapy for schistosomiasis, it will not prevent reinfection, and accordingly, the need for developing an effective vaccine remains an urgent priority. Our studies have supported the status of S. mansoni calpain, glutathione-S-transferase, aldolase, triose phosphate isomerase, glyceraldehyde 3-phosphate dehydrogenase, enolase, and 2-cys peroxiredoxin as vaccine candidates, as they are larval excreted-secreted products and, contrary to the surface membrane molecules, are entirely accessible to the host immune system effector elements. We have proposed that the use of these molecules, in conjunction with Th2 cytokines-inducing adjuvants for recruiting and activating eosinophils and basophils, will likely lead to development and implementation of a sterilizing vaccine in a near future.
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Affiliation(s)
- Rashika A F El Ridi
- Zoology Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
| | - Hatem A-M Tallima
- Zoology Department, Faculty of Science, Cairo University, Cairo 12613, Egypt
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Geyer KK, Hoffmann KF. Epigenetics: a key regulator of platyhelminth developmental biology? Int J Parasitol 2012; 42:221-4. [PMID: 22366548 DOI: 10.1016/j.ijpara.2012.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 02/07/2012] [Accepted: 02/09/2012] [Indexed: 11/18/2022]
Abstract
The Platyhelminthes (flukes/flatworms) are a large group of derived metazoans beautifully adapted for existence in diversely challenging ecosystems. As tractable examples of development and self-regeneration or as causative agents of aquacultural, veterinary and biomedically-relevant parasitic diseases, the platyhelminths are subject to intensive inter-disciplinary research. Given the complex lifestyles exhibited by individuals within this phylum, we postulate that epigenetic processes feature in many aspects of platyhelminth lifecycle diversity, development and environmentally-driven adaptations.
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Affiliation(s)
- Kathrin K Geyer
- Institute of Biological, Environmental and Rural Sciences (IBERS), Edward Llwyd Building, Aberystwyth University, Aberystwyth, UK
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