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Coelho FS, Gava SG, Andrade LF, Geraldo JA, Tavares NC, Lunkes FMN, Neves RH, Machado-Silva JR, Pierce RJ, Oliveira G, Mourão MM. Corrigendum: Schistosoma mansoni coactivator associated arginine methyltransferase 1 (SmCARM1) effect on parasite reproduction. Front Microbiol 2023; 14:1190341. [PMID: 37065155 PMCID: PMC10091393 DOI: 10.3389/fmicb.2023.1190341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 03/31/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fmicb.2023.1079855.].
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Affiliation(s)
- Fernanda Sales Coelho
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
- Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sandra Grossi Gava
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Luiza Freire Andrade
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana Assis Geraldo
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Naiara Clemente Tavares
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Felipe Miguel Nery Lunkes
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Renata Heisler Neves
- Laboratório de Helmintologia Romero Lascasas Porto, Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - José Roberto Machado-Silva
- Laboratório de Helmintologia Romero Lascasas Porto, Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raymond J. Pierce
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 9017—CIIL—Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Guilherme Oliveira
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
- Instituto Tecnológico Vale, Belém, Pará, Brazil
| | - Marina Moraes Mourão
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz—FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
- *Correspondence: Marina Moraes Mourão
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Coelho FS, Gava SG, Andrade LF, Geraldo JA, Tavares NC, Lunkes FMN, Neves RH, Machado-Silva JR, Pierce RJ, Oliveira G, Mourão MM. Schistosoma mansoni coactivator associated arginine methyltransferase 1 (SmCARM1) effect on parasite reproduction. Front Microbiol 2023; 14:1079855. [PMID: 36910171 PMCID: PMC9998485 DOI: 10.3389/fmicb.2023.1079855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/01/2023] [Indexed: 03/14/2023] Open
Abstract
Introduction The human blood fluke parasite Schistosoma mansoni relies on diverse mechanisms to adapt to its diverse environments and hosts. Epigenetic mechanisms play a central role in gene expression regulation, culminating in such adaptations. Protein arginine methyltransferases (PRMTs) promote posttranslational modifications, modulating the function of histones and non-histone targets. The coactivator-associated arginine methyltransferase 1 (CARM1/PRMT4) is one of the S. mansoni proteins with the PRMT core domain. Methods We carried out in silico analyses to verify the expression of SmPRMTs in public datasets from different infection stages, single-sex versus mixed-worms, and cell types. The SmCARM1 function was evaluated by RNA interference. Gene expression levels were assessed, and phenotypic alterations were analyzed in vitro, in vivo, and ex vivo. Results The scRNAseq data showed that SmPRMTs expression is not enriched in any cell cluster in adult worms or schistosomula, except for Smcarm1 expression which is enriched in clusters of ambiguous cells and Smprmt1 in NDF+ neurons and stem/germinal cells from schistosomula. Smprmt1 is also enriched in S1 and late female germ cells from adult worms. After dsRNA exposure in vitro, we observed a Smcarm1 knockdown in schistosomula and adult worms, 83 and 69%, respectively. Smcarm1-knockdown resulted in reduced oviposition and no significant changes in the schistosomula or adult worm phenotypes. In vivo analysis after murine infection with Smcarm1 knocked-down schistosomula, showed no significant change in the number of worms recovered from mice, however, a significant reduction in the number of eggs recovered was detected. The ex vivo worms presented a significant decrease in the ovary area with a lower degree of cell differentiation, vitelline glands cell disorganization, and a decrease in the testicular lobe area. The worm tegument presented a lower number of tubercles, and the ventral sucker of the parasites presented a damaged tegument and points of detachment from the parasite body. Discussion This work brings the first functional characterization of SmCARM1 shedding light on its roles in S. mansoni biology and its potential as a drug target. Additional studies are necessary to investigate whether the reported effects of Smcarm1 knockdown are a consequence of the SmCARM1-mediated methylation of histone tails involved in DNA packaging or other non-histone proteins.
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Affiliation(s)
- Fernanda Sales Coelho
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil.,Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Sandra Grossi Gava
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Luiza Freire Andrade
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Juliana Assis Geraldo
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Naiara Clemente Tavares
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Felipe Miguel Nery Lunkes
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
| | - Renata Heisler Neves
- Laboratório de Helmintologia Romero Lascasas Porto, Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - José Roberto Machado-Silva
- Laboratório de Helmintologia Romero Lascasas Porto, Departamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Raymond J Pierce
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Centre d'Infection et d'Immunité de Lille, Lille, France
| | - Guilherme Oliveira
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil.,Instituto Tecnológico Vale, Belém, Pará, Brazil
| | - Marina Moraes Mourão
- Grupo de Pesquisa em Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz-FIOCRUZ, Belo Horizonte, Minas Gerais, Brazil
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Ghazy E, Abdelsalam M, Robaa D, Pierce RJ, Sippl W. Histone Deacetylase (HDAC) Inhibitors for the Treatment of Schistosomiasis. Pharmaceuticals (Basel) 2022; 15:ph15010080. [PMID: 35056137 PMCID: PMC8779837 DOI: 10.3390/ph15010080] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/06/2022] [Accepted: 01/08/2022] [Indexed: 12/18/2022] Open
Abstract
Schistosomiasis is a major neglected parasitic disease that affects more than 240 million people worldwide and for which the control strategy consists of mass treatment with the only available drug, praziquantel. Schistosomes display morphologically distinct stages during their life cycle and the transformations between stages are controlled by epigenetic mechanisms. The targeting of epigenetic actors might therefore represent the parasites’ Achilles’ heel. Specifically, histone deacetylases have been recently characterized as drug targets for the treatment of schistosomiasis. This review focuses on the recent development of inhibitors for schistosome histone deacetylases. In particular, advances in the development of inhibitors of Schistosoma mansoni histone deacetylase 8 have indicated that targeting this enzyme is a promising approach for the treatment of this infection.
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Affiliation(s)
- Ehab Ghazy
- Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University of Halle-Wittenberg, 06120 Halle (Saale), Germany; (E.G.); (M.A.); (D.R.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Mohamed Abdelsalam
- Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University of Halle-Wittenberg, 06120 Halle (Saale), Germany; (E.G.); (M.A.); (D.R.)
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Dina Robaa
- Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University of Halle-Wittenberg, 06120 Halle (Saale), Germany; (E.G.); (M.A.); (D.R.)
| | - Raymond J. Pierce
- Centre d’Infection et d’Immunité de Lille, U1019—UMR9017—CIIL, Institute Pasteur de Lille, CNRS, Inserm, CHU Lille, Univ. Lille, F-59000 Lille, France;
| | - Wolfgang Sippl
- Department of Medicinal Chemistry, Institute of Pharmacy, Martin-Luther-University of Halle-Wittenberg, 06120 Halle (Saale), Germany; (E.G.); (M.A.); (D.R.)
- Correspondence:
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Marek M, Ramos-Morales E, Picchi-Constante GFA, Bayer T, Norström C, Herp D, Sales-Junior PA, Guerra-Slompo EP, Hausmann K, Chakrabarti A, Shaik TB, Merz A, Troesch E, Schmidtkunz K, Goldenberg S, Pierce RJ, Mourão MM, Jung M, Schultz J, Sippl W, Zanchin NIT, Romier C. Species-selective targeting of pathogens revealed by the atypical structure and active site of Trypanosoma cruzi histone deacetylase DAC2. Cell Rep 2021; 37:110129. [PMID: 34936867 DOI: 10.1016/j.celrep.2021.110129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/26/2021] [Accepted: 11/23/2021] [Indexed: 01/12/2023] Open
Abstract
Writing and erasing of posttranslational modifications are crucial to phenotypic plasticity and antigenic variation of eukaryotic pathogens. Targeting pathogens' modification machineries, thus, represents a valid approach to fighting parasitic diseases. However, identification of parasitic targets and the development of selective anti-parasitic drugs still represent major bottlenecks. Here, we show that the zinc-dependent histone deacetylases (HDACs) of the protozoan parasite Trypanosoma cruzi are key regulators that have significantly diverged from their human counterparts. Depletion of T. cruzi class I HDACs tcDAC1 and tcDAC2 compromises cell-cycle progression and division, leading to cell death. Notably, tcDAC2 displays a deacetylase activity essential to the parasite and shows major structural differences with human HDACs. Specifically, tcDAC2 harbors a modular active site with a unique subpocket targeted by inhibitors showing substantial anti-parasitic effects in cellulo and in vivo. Thus, the targeting of the many atypical HDACs in pathogens can enable anti-parasitic selective chemical impairment.
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Affiliation(s)
- Martin Marek
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, UMR 7104, U 1258, 67404 Illkirch, France; IGBMC, Department of Integrated Structural Biology, 1 rue Laurent Fries, B.P. 10142, 67404 Illkirch Cedex, France
| | - Elizabeth Ramos-Morales
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, UMR 7104, U 1258, 67404 Illkirch, France; IGBMC, Department of Integrated Structural Biology, 1 rue Laurent Fries, B.P. 10142, 67404 Illkirch Cedex, France
| | | | - Theresa Bayer
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | | | - Daniel Herp
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Policarpo A Sales-Junior
- Instituto René Rachou, Fundação Oswaldo Cruz, Avenida Augusto de Lima, 1715, 30190-002 Belo Horizonte, Brazil
| | | | - Kristin Hausmann
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Tajith B Shaik
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, UMR 7104, U 1258, 67404 Illkirch, France; IGBMC, Department of Integrated Structural Biology, 1 rue Laurent Fries, B.P. 10142, 67404 Illkirch Cedex, France
| | - Annika Merz
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Edouard Troesch
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, UMR 7104, U 1258, 67404 Illkirch, France; IGBMC, Department of Integrated Structural Biology, 1 rue Laurent Fries, B.P. 10142, 67404 Illkirch Cedex, France
| | - Karin Schmidtkunz
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Samuel Goldenberg
- Instituto Carlos Chagas, Fiocruz Paraná, Curitiba, Paraná 81350-010, Brazil
| | - Raymond J Pierce
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 9017 - CIIL -Centre d'Infection et d'Immunité de Lille, 59000 Lille, France
| | - Marina M Mourão
- Instituto René Rachou, Fundação Oswaldo Cruz, Avenida Augusto de Lima, 1715, 30190-002 Belo Horizonte, Brazil
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Johan Schultz
- Kancera AB, Nanna Svartz Väg 4, SE-17165 Solna, Sweden
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | - Nilson I T Zanchin
- Instituto Carlos Chagas, Fiocruz Paraná, Curitiba, Paraná 81350-010, Brazil.
| | - Christophe Romier
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique et de Biologie Moléculaire et Cellulaire, UMR 7104, U 1258, 67404 Illkirch, France; IGBMC, Department of Integrated Structural Biology, 1 rue Laurent Fries, B.P. 10142, 67404 Illkirch Cedex, France.
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Pagliazzo L, Caby S, Lancelot J, Salomé-Desnoulez S, Saliou JM, Heimburg T, Chassat T, Cailliau K, Sippl W, Vicogne J, Pierce RJ. Histone deacetylase 8 interacts with the GTPase SmRho1 in Schistosoma mansoni. PLoS Negl Trop Dis 2021; 15:e0009503. [PMID: 34843489 PMCID: PMC8670706 DOI: 10.1371/journal.pntd.0009503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 12/14/2021] [Accepted: 10/23/2021] [Indexed: 12/15/2022] Open
Abstract
Background Schistosoma mansoni histone deacetylase 8 (SmHDAC8) has elicited considerable interest as a target for drug discovery. Invalidation of its transcripts by RNAi leads to impaired survival of the worms in infected mice and its inhibition causes cell apoptosis and death. To determine why it is a promising therapeutic target the study of the currently unknown cellular signaling pathways involving this enzyme is essential. Protein partners of SmHDAC8 were previously identified by yeast two-hybrid (Y2H) cDNA library screening and by mass spectrometry (MS) analysis. Among these partners we characterized SmRho1, the schistosome orthologue of human RhoA GTPase, which is involved in the regulation of the cytoskeleton. In this work, we validated the interaction between SmHDAC8 and SmRho1 and explored the role of the lysine deacetylase in cytoskeletal regulation. Methodology/principal findings We characterized two isoforms of SmRho1, SmRho1.1 and SmRho1.2. Co- immunoprecipitation (Co-IP)/Mass Spectrometry (MS) analysis identified SmRho1 partner proteins and we used two heterologous expression systems (Y2H assay and Xenopus laevis oocytes) to study interactions between SmHDAC8 and SmRho1 isoforms. To confirm SmHDAC8 and SmRho1 interaction in adult worms and schistosomula, we performed Co-IP experiments and additionally demonstrated SmRho1 acetylation using a Nano LC-MS/MS approach. A major impact of SmHDAC8 in cytoskeleton organization was documented by treating adult worms and schistosomula with a selective SmHDAC8 inhibitor or using RNAi followed by confocal microscopy. Conclusions/significance Our results suggest that SmHDAC8 is involved in cytoskeleton organization via its interaction with the SmRho1.1 isoform. The SmRho1.2 isoform failed to interact with SmHDAC8, but did specifically interact with SmDia suggesting the existence of two distinct signaling pathways regulating S. mansoni cytoskeleton organization via the two SmRho1 isoforms. A specific interaction between SmHDAC8 and the C-terminal moiety of SmRho1.1 was demonstrated, and we showed that SmRho1 is acetylated on K136. SmHDAC8 inhibition or knockdown using RNAi caused extensive disruption of schistosomula actin cytoskeleton. Schistosoma mansoni is the major parasitic platyhelminth species causing intestinal schistosomiasis. Currently one drug, praziquantel, is the treatment of choice but its use in mass treatment programs means that the development of resistance is likely and renders imperative the development of new therapeutic agents. As new potential targets we have focused on lysine deacetylases, and in particular S. mansoni histone deacetylase 8 (SmHDAC8). Previous studies showed that reduction in the level of transcripts of SmHDAC8 by RNAi led to the impaired survival of the worms after the infection of mice. The analysis of the 3D structure of SmHDAC8 by X-ray crystallography showed that the catalytic domain structure diverges significantly from that of human HDAC8 and this was exploited to develop novel potential anti-schistosomal drugs. The biological roles of SmHDAC8 are unknown. For this reason, we previously characterized its protein binding partners and identified the schistosome orthologue of the human RhoA GTPase, suggesting the involvement of SmHDAC8 in the modulation of cytoskeleton organization. Here we investigated the interaction between SmHDAC8 and SmRho1 and identified two SmRho1 isoforms (SmRho1.1 and SmRho1.2). Our study showed that SmHDAC8 is involved in schistosome cytoskeleton organization.
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Affiliation(s)
- Lucile Pagliazzo
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, - Centre d’Infection et d’Immunité de Lille, Lille, France
| | - Stéphanie Caby
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, - Centre d’Infection et d’Immunité de Lille, Lille, France
| | - Julien Lancelot
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, - Centre d’Infection et d’Immunité de Lille, Lille, France
| | | | - Jean-Michel Saliou
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, Lille, France
| | - Tino Heimburg
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Halle/Saale, Germany
| | - Thierry Chassat
- Institut Pasteur de Lille - PLEHTA (Plateforme d’expérimentation et de Haute Technologie Animale), Lille, France
| | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg, Halle/Saale, Germany
| | - Jérôme Vicogne
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, - Centre d’Infection et d’Immunité de Lille, Lille, France
- * E-mail: (JV); (RJP)
| | - Raymond J. Pierce
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, - Centre d’Infection et d’Immunité de Lille, Lille, France
- * E-mail: (JV); (RJP)
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Coutinho Carneiro V, de Abreu da Silva IC, Amaral MS, Pereira ASA, Silveira GO, Pires DDS, Verjovski-Almeida S, Dekker FJ, Rotili D, Mai A, Lopes-Torres EJ, Robaa D, Sippl W, Pierce RJ, Borrello MT, Ganesan A, Lancelot J, Thiengo S, Fernandez MA, Vicentino ARR, Mourão MM, Coelho FS, Fantappié MR. Pharmacological inhibition of lysine-specific demethylase 1 (LSD1) induces global transcriptional deregulation and ultrastructural alterations that impair viability in Schistosoma mansoni. PLoS Negl Trop Dis 2020; 14:e0008332. [PMID: 32609727 PMCID: PMC7329083 DOI: 10.1371/journal.pntd.0008332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 04/28/2020] [Indexed: 02/06/2023] Open
Abstract
Treatment and control of schistosomiasis still rely on only one effective drug, praziquantel (PZQ) and, due to mass treatment, the increasing risk of selecting for schistosome strains that are resistant to PZQ has alerted investigators to the urgent need to develop novel therapeutic strategies. The histone-modifying enzymes (HMEs) represent promising targets for the development of epigenetic drugs against Schistosoma mansoni. In the present study, we targeted the S. mansoni lysine-specific demethylase 1 (SmLSD1), a transcriptional corepressor, using a novel and selective synthetic inhibitor, MC3935, which was used to treat schistosomula and adult worms in vitro. By using cell viability assays and optical and electron microscopy, we showed that treatment with MC3935 affected parasite motility, egg-laying, tegument, and cellular organelle structures, culminating in the death of schistosomula and adult worms. In silico molecular modeling and docking analysis suggested that MC3935 binds to the catalytic pocket of SmLSD1. Western blot analysis revealed that MC3935 inhibited SmLSD1 demethylation activity of H3K4me1/2. Knockdown of SmLSD1 by RNAi recapitulated MC3935 phenotypes in adult worms. RNA-Seq analysis of MC3935-treated parasites revealed significant differences in gene expression related to critical biological processes. Collectively, our findings show that SmLSD1 is a promising drug target for the treatment of schistosomiasis and strongly support the further development and in vivo testing of selective schistosome LSD1 inhibitors.
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Affiliation(s)
- Vitor Coutinho Carneiro
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Isabel Caetano de Abreu da Silva
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Adriana S. A. Pereira
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brasil
| | - Gilbert Oliveira Silveira
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brasil
| | | | - Sergio Verjovski-Almeida
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, Brazil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brasil
| | - Frank J. Dekker
- Department of Chemical and Pharmaceutical Biology, University of Groningen, Antonius Deusinglaan, AV Groningen, Netherlands
| | - Dante Rotili
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Rome, Italy
| | - Antonello Mai
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, Rome, Italy
| | - Eduardo José Lopes-Torres
- Laboratório de Helmintologia Romero Lascasas Porto, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Dina Robaa
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Germany
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Germany
| | - Raymond J. Pierce
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 9017—CIIL—Centre d’Infection et d’Immunité de Lille, Lille, France
| | - M. Teresa Borrello
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - A. Ganesan
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, United Kingdom
| | - Julien Lancelot
- Université de Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 9017—CIIL—Centre d’Infection et d’Immunité de Lille, Lille, France
| | - Silvana Thiengo
- Laboratório de Malacologia, Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Monica Ammon Fernandez
- Laboratório de Malacologia, Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Amanda Roberta Revoredo Vicentino
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marina Moraes Mourão
- Grupo de Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Fernanda Sales Coelho
- Grupo de Helmintologia e Malacologia Médica, Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, Brazil
| | - Marcelo Rosado Fantappié
- Instituto de Bioquímica Médica Leopoldo de Meis, Programa de Biologia Molecular e Biotecnologia, Centro de Ciências da Saúde, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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7
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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. Front Cover: Structure‐Based Design, Synthesis, and Biological Evaluation of Triazole‐Based smHDAC8 Inhibitors (ChemMedChem 7/2020). ChemMedChem 2020. [DOI: 10.1002/cmdc.201000139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dmitrii V. Kalinin
- Department of Chemistry Institute of Organic ChemistryUniversity 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 ChemistryUniversity 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 ChemistryUniversity of Münster Corrensstr. 48 48149 Münster Germany
- NRW Graduate School of ChemistryUniversity of Münster Wilhelm-Klemm-Str. 10 48149 Münster Germany
| | - Maxim Pfafenrot
- Institute of Pharmaceutical and Medicinal ChemistryUniversity of Münster Corrensstr. 48 48149 Münster Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical SciencesAlbert-Ludwigs-Universität Freiburg Albertstr. 25 79104 Freiburg Germany
| | - Jelena Melesina
- Institute of PharmacyMartin 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 PharmacyMartin 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 SciencesAlbert-Ludwigs-Universität Freiburg Albertstr. 25 79104 Freiburg Germany
| | - Ralph Holl
- Department of Chemistry Institute of Organic ChemistryUniversity 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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8
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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9
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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10
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Marek M, Shaik TB, Heimburg T, Chakrabarti A, Lancelot J, Ramos-Morales E, Da Veiga C, Kalinin D, Melesina J, Robaa D, Schmidtkunz K, Suzuki T, Holl R, Ennifar E, Pierce RJ, Jung M, Sippl W, Romier C. Characterization of Histone Deacetylase 8 (HDAC8) Selective Inhibition Reveals Specific Active Site Structural and Functional Determinants. J Med Chem 2018; 61:10000-10016. [PMID: 30347148 DOI: 10.1021/acs.jmedchem.8b01087] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Metal-dependent histone deacetylases (HDACs) are key epigenetic regulators that represent promising therapeutic targets for the treatment of numerous human diseases. Yet the currently FDA-approved HDAC inhibitors nonspecifically target at least several of the 11 structurally similar but functionally different HDAC isozymes, which hampers their broad usage in clinical settings. Selective inhibitors targeting single HDAC isozymes are being developed, but precise understanding in molecular terms of their selectivity remains sparse. Here, we show that HDAC8-selective inhibitors adopt a L-shaped conformation required for their binding to a HDAC8-specific pocket formed by HDAC8 catalytic tyrosine and HDAC8 L1 and L6 loops. In other HDAC isozymes, a L1-L6 lock sterically prevents L-shaped inhibitor binding. Shielding of the HDAC8-specific pocket by protein engineering decreases potency of HDAC8-selective inhibitors and affects catalytic activity. Collectively, our results unravel key HDAC8 active site structural and functional determinants important for the design of next-generation chemical probes and epigenetic drugs.
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Affiliation(s)
- Martin Marek
- Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Département de Biologie Structurale Intégrative , Université de Strasbourg, Centre National de la Recherche Scientifique (CNRS UMR7104), Institut National de la Santé et de la Recherche Médicale (INSERM U1258) , 1 rue Laurent Fries , 67404 Illkirch Cedex , France
| | - Tajith B Shaik
- Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Département de Biologie Structurale Intégrative , Université de Strasbourg, Centre National de la Recherche Scientifique (CNRS UMR7104), Institut National de la Santé et de la Recherche Médicale (INSERM U1258) , 1 rue Laurent Fries , 67404 Illkirch Cedex , France
| | - Tino Heimburg
- Institute of Pharmacy , Martin-Luther-Universität Halle-Wittenberg , Wolfgang-Langenbeck-Straße 4 , 06120 Halle/Saale , Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences , Albert-Ludwigs-Universität Freiburg , Albertstraße 25 , 79104 Freiburg , Germany
| | - Julien Lancelot
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille , Université de Lille , F-59000 Lille , France
| | - Elizabeth Ramos-Morales
- Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Département de Biologie Structurale Intégrative , Université de Strasbourg, Centre National de la Recherche Scientifique (CNRS UMR7104), Institut National de la Santé et de la Recherche Médicale (INSERM U1258) , 1 rue Laurent Fries , 67404 Illkirch Cedex , France
| | - Cyrielle Da Veiga
- Architecture et Réactivité de l'ARN, Institut de Biologie Moléculaire et Cellulaire (IBMC), UPR 9004 du CNRS , Université de Strasbourg , 15 Rue René Descartes , 67084 Strasbourg Cedex , France
| | - Dmitrii Kalinin
- Institute of Pharmaceutical and Medicinal Chemistry , University of Münster , Corrensstraße 48 , 48149 Münster , Germany
| | - Jelena Melesina
- Institute of Pharmacy , Martin-Luther-Universität Halle-Wittenberg , Wolfgang-Langenbeck-Straße 4 , 06120 Halle/Saale , Germany
| | - Dina Robaa
- Institute of Pharmacy , Martin-Luther-Universität Halle-Wittenberg , Wolfgang-Langenbeck-Straße 4 , 06120 Halle/Saale , Germany
| | - Karin Schmidtkunz
- Institute of Pharmaceutical Sciences , Albert-Ludwigs-Universität Freiburg , Albertstraße 25 , 79104 Freiburg , Germany
| | - Takayoshi Suzuki
- Graduate School of Medical Science , Kyoto Prefectural University of Medicine , 1-5 Shimogamohangi-Cho, Sakyo-Ku , 606-0823 Kyoto , Japan.,CREST , Japan Science and Technology Agency (JST) , 4-1-8 Honcho Kawaguchi , 332-0012 Saitama , Japan
| | - Ralph Holl
- Department of Chemistry, Institute of Organic Chemistry , University of Hamburg , Martin-Luther-King-Platz 6 , 20146 Hamburg , Germany
| | - Eric Ennifar
- Architecture et Réactivité de l'ARN, Institut de Biologie Moléculaire et Cellulaire (IBMC), UPR 9004 du CNRS , Université de Strasbourg , 15 Rue René Descartes , 67084 Strasbourg Cedex , France
| | - Raymond J Pierce
- CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille , Université de Lille , F-59000 Lille , France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences , Albert-Ludwigs-Universität Freiburg , Albertstraße 25 , 79104 Freiburg , Germany
| | - Wolfgang Sippl
- Institute of Pharmacy , Martin-Luther-Universität Halle-Wittenberg , Wolfgang-Langenbeck-Straße 4 , 06120 Halle/Saale , Germany
| | - Christophe Romier
- Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Département de Biologie Structurale Intégrative , Université de Strasbourg, Centre National de la Recherche Scientifique (CNRS UMR7104), Institut National de la Santé et de la Recherche Médicale (INSERM U1258) , 1 rue Laurent Fries , 67404 Illkirch Cedex , France
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11
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Pereira ASA, Amaral MS, Vasconcelos EJR, Pires DS, Asif H, daSilva LF, Morales-Vicente DA, Carneiro VC, Angeli CB, Palmisano G, Fantappie MR, Pierce RJ, Setubal JC, Verjovski-Almeida S. Inhibition of histone methyltransferase EZH2 in Schistosoma mansoni in vitro by GSK343 reduces egg laying and decreases the expression of genes implicated in DNA replication and noncoding RNA metabolism. PLoS Negl Trop Dis 2018; 12:e0006873. [PMID: 30365505 PMCID: PMC6221359 DOI: 10.1371/journal.pntd.0006873] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 11/07/2018] [Accepted: 09/24/2018] [Indexed: 11/19/2022] Open
Abstract
Background The possibility of emergence of praziquantel-resistant Schistosoma parasites and the lack of other effective drugs demand the discovery of new schistosomicidal agents. In this context the study of compounds that target histone-modifying enzymes is extremely promising. Our aim was to investigate the effect of inhibition of EZH2, a histone methyltransferase that is involved in chromatin remodeling processes and gene expression control; we tested different developmental forms of Schistosoma mansoni using GKS343, a selective inhibitor of EZH2 in human cells. Methodology/Principal findings Adult male and female worms and schistosomula were treated with different concentrations of GSK343 for up to two days in vitro. Western blotting showed a decrease in the H3K27me3 histone mark in all three developmental forms. Motility, mortality, pairing and egg laying were employed as schistosomicidal parameters for adult worms. Schistosomula viability was evaluated with propidium iodide staining and ATP quantification. Adult worms showed decreased motility when exposed to GSK343. Also, an approximate 40% reduction of egg laying by GSK343-treated females was observed when compared with controls (0.1% DMSO). Scanning electron microscopy showed the formation of bulges and bubbles throughout the dorsal region of GSK343-treated adult worms. In schistosomula the body was extremely contracted with the presence of numerous folds, and growth was markedly slowed. RNA-seq was applied to identify the metabolic pathways affected by GSK343 sublethal doses. GSK343-treated adult worms showed significantly altered expression of genes related to transmembrane transport, cellular homeostasis and egg development. In females, genes related to DNA replication and noncoding RNA metabolism processes were downregulated. Schistosomula showed altered expression of genes related to cell adhesion and membrane synthesis pathways. Conclusions/Significance The results indicated that GSK343 presents in vitro activities against S. mansoni, and the characterization of EZH2 as a new potential molecular target establishes EZH2 inhibitors as part of a promising new group of compounds that could be used for the development of schistosomicidal agents. Schistosomiasis is a chronic and debilitating disease caused by a trematode of the genus Schistosoma. The current strategy for the control of the disease involves treatment with praziquantel, the only available drug. The development of new drugs is therefore a top priority. Drugs that inhibit histone modifying enzymes have been used in cancer, altering gene expression, replication, repair and DNA recombination. Schistosoma parasites have some characteristics similar to malignant tumors, such as intense cell division and high levels of metabolic activity. Here we evaluate in Schistosoma mansoni the effect of GSK343, an inhibitor of the histone methyltransferase EZH2 that had been shown to arrest or reduce the growth of human cancer cells. We show that GSK343 causes damage to the parasite tegument and reduces egg laying in vitro, concomitant with a decrease in levels of H3K27me3, the histone mark put in place by EZH2. RNA-seq and proteomic analyses of treated parasites showed changes in the expression of hundreds of genes involved in important metabolic processes. In females, a marked decrease was observed in the expression of genes related to processes such as DNA replication and noncoding RNA metabolism. In conclusion, the histone methyltransferase EZH2 seems to be a promising novel drug target against schistosomiasis.
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Affiliation(s)
- Adriana S. A. Pereira
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Murilo S. Amaral
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
| | - Elton J. R. Vasconcelos
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - David S. Pires
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
| | - Huma Asif
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
| | - Lucas F. daSilva
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - David A. Morales-Vicente
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Vitor C. Carneiro
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Claudia B. Angeli
- Instituto de Ciências Biomédicas, Departamento de Parasitologia, Laboratório de Glicoproteômica, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Giuseppe Palmisano
- Instituto de Ciências Biomédicas, Departamento de Parasitologia, Laboratório de Glicoproteômica, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Marcelo R. Fantappie
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - Raymond J. Pierce
- Centre d'Infection et d'Immunité de Lille, CNRS UMR 8204, Inserm U1019, CHU Lille, Institut Pasteur de Lille, Université de Lille, Lille, France
| | - João C. Setubal
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
| | - Sergio Verjovski-Almeida
- Laboratório de Parasitologia, Instituto Butantan, São Paulo, SP, Brasil
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, SP, Brasil
- * E-mail:
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12
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Bayer T, Chakrabarti A, Lancelot J, Shaik TB, Hausmann K, Melesina J, Schmidtkunz K, Marek M, Erdmann F, Schmidt M, Robaa D, Romier C, Pierce RJ, Jung M, Sippl W. Front Cover: Synthesis, Crystallization Studies, and in vitro Characterization of Cinnamic Acid Derivatives as
Sm
HDAC8 Inhibitors for the Treatment of Schistosomiasis (ChemMedChem 15/2018). ChemMedChem 2018. [DOI: 10.1002/cmdc.201800494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Theresa Bayer
- Institute of Pharmacy Martin Luther University of Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle/Saale Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences University of Freiburg 79104 Freiburg Germany
| | - Julien Lancelot
- University of Lille CNRS Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille 59000 Lille France
| | - Tajith B. Shaik
- Département de Biologie Structurale Intégrative Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC) Université de Strasbourg CNRS INSERM 67404 Illkirch Cedex France
| | - Kristin Hausmann
- Institute of Pharmacy Martin Luther University of Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle/Saale Germany
| | - Jelena Melesina
- Institute of Pharmacy Martin Luther University of Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle/Saale Germany
| | - Karin Schmidtkunz
- Institute of Pharmaceutical Sciences University of Freiburg 79104 Freiburg Germany
| | - Martin Marek
- Département de Biologie Structurale Intégrative Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC) Université de Strasbourg CNRS INSERM 67404 Illkirch Cedex France
| | - Frank Erdmann
- Institute of Pharmacy Martin Luther University of Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle/Saale Germany
| | - Matthias Schmidt
- Institute of Pharmacy Martin Luther University of Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle/Saale Germany
| | - Dina Robaa
- 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 67404 Illkirch Cedex France
| | - Raymond J. Pierce
- University of Lille CNRS Inserm, CHU Lille, Institut Pasteur de Lille, U1019—UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille 59000 Lille France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences University of Freiburg 79104 Freiburg Germany
| | - Wolfgang Sippl
- Institute of Pharmacy Martin Luther University of Halle-Wittenberg Wolfgang-Langenbeck-Str. 4 06120 Halle/Saale Germany
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13
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Bayer T, Chakrabarti A, Lancelot J, Shaik TB, Hausmann K, Melesina J, Schmidtkunz K, Marek M, Erdmann F, Schmidt M, Robaa D, Romier C, Pierce RJ, Jung M, Sippl W. Synthesis, Crystallization Studies, and in vitro Characterization of Cinnamic Acid Derivatives as SmHDAC8 Inhibitors for the Treatment of Schistosomiasis. ChemMedChem 2018; 13:1517-1529. [PMID: 29806110 DOI: 10.1002/cmdc.201800238] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/24/2018] [Indexed: 12/25/2022]
Abstract
Schistosomiasis is a neglected parasitic disease that affects more than 265 million people worldwide and for which the control strategy relies on mass treatment with only one drug: praziquantel. Based on the 3-chlorobenzothiophene-2-hydroxamic acid J1075, a series of hydroxamic acids with different scaffolds were prepared as potential inhibitors of Schistosoma mansoni histone deacetylase 8 (SmHDAC8). The crystal structures of SmHDAC8 with four inhibitors provided insight into the binding mode and orientation of molecules in the binding pocket as well as the orientation of its flexible amino acid residues. The compounds were evaluated in screens for inhibitory activity against schistosome and human HDACs. The most promising compounds were further investigated for their activity toward the major human HDAC isotypes. The most potent inhibitors were additionally screened for lethality against the schistosome larval stage using a fluorescence-based assay. Two of the compounds 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)
- Theresa Bayer
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Julien Lancelot
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, 59000, Lille, France
| | - Tajith B Shaik
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 67404, Illkirch Cedex, France
| | - Kristin Hausmann
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Jelena Melesina
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Karin Schmidtkunz
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg, CNRS, INSERM, 67404, Illkirch Cedex, France
| | - Frank Erdmann
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Matthias Schmidt
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
| | - Dina Robaa
- 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, 67404, Illkirch Cedex, France
| | - Raymond J Pierce
- University of Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, 59000, Lille, France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104, Freiburg, Germany
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin Luther University of Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle/Saale, Germany
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14
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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15
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Pierce RJ, MacDougall J, Leurs R, Costi MP. The Future of Drug Development for Neglected Tropical Diseases: How the European Commission Can Continue to Make a Difference. Trends Parasitol 2017; 33:581-583. [PMID: 28529130 DOI: 10.1016/j.pt.2017.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/05/2017] [Accepted: 04/21/2017] [Indexed: 10/19/2022]
Abstract
In this article, the four coordinators of neglected tropical disease (NTD) drug development projects funded under the European Commission (EC) Framework Programme 7 argue that the EC should reassess their funding strategy to cover the steps necessary to translate a lead compound into a drug candidate for testing in clinical trials, and suggest ways in which this might be achieved.
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Affiliation(s)
- Raymond J Pierce
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre d'Infection et d'Immunité de Lille, F-59000 Lille, France.
| | - Jane MacDougall
- Photeomix, IP Research Consulting SAS, Noisy le Grand, 93160, France.
| | - Rob Leurs
- Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Division of Medicinal Chemistry, Faculty of Science, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands.
| | - Maria Paola Costi
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
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16
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Chua MJ, Arnold MSJ, Xu W, Lancelot J, Lamotte S, Späth GF, Prina E, Pierce RJ, Fairlie DP, Skinner-Adams TS, Andrews KT. Effect of clinically approved HDAC inhibitors on Plasmodium, Leishmania and Schistosoma parasite growth. Int J Parasitol Drugs Drug Resist 2016; 7:42-50. [PMID: 28107750 PMCID: PMC5241585 DOI: 10.1016/j.ijpddr.2016.12.005] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 12/11/2022]
Abstract
Malaria, schistosomiasis and leishmaniases are among the most prevalent tropical parasitic diseases and each requires new innovative treatments. Targeting essential parasite pathways, such as those that regulate gene expression and cell cycle progression, is a key strategy for discovering new drug leads. In this study, four clinically approved anti-cancer drugs (Vorinostat, Belinostat, Panobinostat and Romidepsin) that target histone/lysine deacetylase enzymes were examined for in vitro activity against Plasmodium knowlesi, Schistosoma mansoni, Leishmania amazonensis and L. donovani parasites and two for in vivo activity in a mouse malaria model. All four compounds were potent inhibitors of P. knowlesi malaria parasites (IC50 9-370 nM), with belinostat, panobinostat and vorinostat having 8-45 fold selectivity for the parasite over human neonatal foreskin fibroblast (NFF) or human embryonic kidney (HEK 293) cells, while romidepsin was not selective. Each of the HDAC inhibitor drugs caused hyperacetylation of P. knowlesi histone H4. None of the drugs was active against Leishmania amastigote or promastigote parasites (IC50 > 20 μM) or S. mansoni schistosomula (IC50 > 10 μM), however romidepsin inhibited S. mansoni adult worm parings and egg production (IC50 ∼10 μM). Modest in vivo activity was observed in P. berghei infected mice dosed orally with vorinostat or panobinostat (25 mg/kg twice daily for four days), with a significant reduction in parasitemia observed on days 4-7 and 4-10 after infection (P < 0.05), respectively.
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Affiliation(s)
- Ming Jang Chua
- Griffith Institute for Drug Discovery, Griffith University, Queensland, Australia
| | - Megan S J Arnold
- Griffith Institute for Drug Discovery, Griffith University, Queensland, Australia
| | - Weijun Xu
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, 4072, Australia
| | - Julien Lancelot
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204- CIIL -Centre D'Infection et D'Immunité de Lille, F-59000 Lille, France
| | - Suzanne Lamotte
- Institut Pasteur and INSERM U1201, Unité de Parasitologie Moléculaire et Signalisation, Paris, France
| | - Gerald F Späth
- Institut Pasteur and INSERM U1201, Unité de Parasitologie Moléculaire et Signalisation, Paris, France
| | - Eric Prina
- Institut Pasteur and INSERM U1201, Unité de Parasitologie Moléculaire et Signalisation, Paris, France
| | - Raymond J Pierce
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204- CIIL -Centre D'Infection et D'Immunité de Lille, F-59000 Lille, France
| | - David P Fairlie
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, 4072, Australia
| | - Tina S Skinner-Adams
- Griffith Institute for Drug Discovery, Griffith University, Queensland, Australia
| | - Katherine T Andrews
- Griffith Institute for Drug Discovery, Griffith University, Queensland, Australia.
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17
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Heimburg T, Chakrabarti A, Lancelot J, Marek M, Melesina J, Hauser AT, Shaik TB, Duclaud S, Robaa D, Erdmann F, Schmidt M, Romier C, Pierce RJ, Jung M, Sippl W. Structure-Based Design and Synthesis of Novel Inhibitors Targeting HDAC8 from Schistosoma mansoni for the Treatment of Schistosomiasis. J Med Chem 2016; 59:2423-35. [PMID: 26937828 DOI: 10.1021/acs.jmedchem.5b01478] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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, a series of new benzohydroxamates were prepared as potent inhibitors of Schistosoma mansoni histone deacetylase 8 (smHDAC8). Crystallographic analysis provided insights into the inhibition mode of smHDAC8 activity by these 3-amidobenzohydroxamates. The newly designed inhibitors were evaluated in screens for enzyme inhibitory activity against schistosome and human HDACs. Twenty-seven compounds were found to be active in the nanomolar range, and some of them showed selectivity toward smHDAC8 over the major human HDACs (1 and 6). The active benzohydroxamates were additionally screened for lethality against the schistosome larval stage using a fluorescence-based assay. Four of these 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)
- Tino Heimburg
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg , 06120 Halle/Saale, Germany
| | - Alokta Chakrabarti
- Institute of Pharmaceutical Sciences, University of Freiburg , 79104 Freiburg, Germany
| | - 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
| | - Jelena Melesina
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg , 06120 Halle/Saale, Germany
| | | | - 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
| | - Sylvie Duclaud
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM , 67404 Illkirch Cedex, France
| | - Dina Robaa
- Institute of Pharmacy, Martin-Luther University of Halle-Wittenberg , 06120 Halle/Saale, Germany
| | - 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
| | - 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
| | - 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
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18
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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19
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Marek M, Shaik TB, Duclaud S, Pierce RJ, Romier C. Large-Scale Overproduction and Purification of Recombinant Histone Deacetylase 8 (HDAC8) from the Human-Pathogenic Flatworm Schistosoma mansoni. Methods Mol Biol 2016; 1436:109-118. [PMID: 27246211 DOI: 10.1007/978-1-4939-3667-0_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Epigenetic mechanisms underlie the morphological transformations and shifts in virulence of eukaryotic pathogens. The targeting of epigenetics-driven cellular programs thus represents an Achilles' heel of human parasites. Today, zinc-dependent histone deacetylases (HDACs) belong to the most explored epigenetic drug targets in eukaryotic parasites. Here, we describe an optimized protocol for the large-scale overproduction and purification of recombinant smHDAC8, an emerging epigenetic drug target in the multicellular human-pathogenic flatworm Schistosoma mansoni. The strategy employs the robustness of recombinant expression in Escherichia coli together with initial purification through a poly-histidine affinity tag that can be removed by the thrombin protease. This protocol is divided into two steps: (1) large-scale production of smHDAC8 in E. coli, and (2) purification of the target smHDAC8 protein through multiple purification steps.
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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, 1 rue Laurent Fries, B.P. 10142, 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, 1 rue Laurent Fries, B.P. 10142, 67404, Illkirch Cedex, France
| | - Sylvie Duclaud
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 1 rue Laurent Fries, B.P. 10142, 67404, Illkirch Cedex, France
| | - Raymond J Pierce
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 - CNRS UMR 8204, Université de Lille, Institut Pasteur de Lille, 1 rue Professeur Calmette, 59019, Lille Cedex, France
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, 1 rue Laurent Fries, B.P. 10142, 67404, Illkirch Cedex, France.
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20
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Cabezas-Cruz A, Tonk M, Bouchut A, Pierrot C, Pierce RJ, Kotsyfakis M, Rahnamaeian M, Vilcinskas A, Khalife J, Valdés JJ. Antiplasmodial Activity Is an Ancient and Conserved Feature of Tick Defensins. Front Microbiol 2016; 7:1682. [PMID: 27822206 PMCID: PMC5075766 DOI: 10.3389/fmicb.2016.01682] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 10/07/2016] [Indexed: 01/20/2023] Open
Abstract
Ancestral sequence reconstruction has been widely used to test evolution-based hypotheses. The genome of the European tick vector, Ixodes ricinus, encodes for defensin peptides with diverse antimicrobial activities against distantly related pathogens. These pathogens include fungi, Gram-negative, and Gram-positive bacteria, i.e., a wide antimicrobial spectrum. Ticks do not transmit these pathogens, suggesting that these defensins may act against a wide range of microbes encountered by ticks during blood feeding or off-host periods. As demonstrated here, these I. ricinus defensins are also effective against the apicomplexan parasite Plasmodium falciparum. To study the general evolution of antimicrobial activity in tick defensins, the ancestral amino acid sequence of chelicerate defensins, which existed approximately 444 million years ago, was reconstructed using publicly available scorpion and tick defensin sequences (named Scorpions-Ticks Defensins Ancestor, STiDA). The activity of STiDA was tested against P. falciparum and the same Gram-negative and Gram-positive bacteria that were used for the I. ricinus defensins. While some extant tick defensins exhibit a wide antimicrobial spectrum, the ancestral defensin showed moderate activity against one of the tested microbes, P. falciparum. This study suggests that amino acid variability and defensin family expansion increased the antimicrobial spectrum of ancestral tick defensins.
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Affiliation(s)
- Alejandro Cabezas-Cruz
- Institute of Parasitology, Université Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – Centre d’Infection et d’Immunité de LilleLille, France
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences (ACVR)České Budějovice, Czech Republic
- Faculty of Science, University of South BohemiaČeské Budějovice, Czech Republic
| | - Miray Tonk
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied EcologyGiessen, Germany
| | - Anne Bouchut
- Institute of Parasitology, Université Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – Centre d’Infection et d’Immunité de LilleLille, France
| | - Christine Pierrot
- Institute of Parasitology, Université Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – Centre d’Infection et d’Immunité de LilleLille, France
| | - Raymond J. Pierce
- Institute of Parasitology, Université Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – Centre d’Infection et d’Immunité de LilleLille, France
| | - Michalis Kotsyfakis
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences (ACVR)České Budějovice, Czech Republic
| | - Mohammad Rahnamaeian
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied EcologyGiessen, Germany
- Institute for Insect Biotechnology, Justus-Liebig-University of GiessenGiessen, Germany
| | - Andreas Vilcinskas
- Department of Bioresources, Fraunhofer Institute for Molecular Biology and Applied EcologyGiessen, Germany
- Institute for Insect Biotechnology, Justus-Liebig-University of GiessenGiessen, Germany
| | - Jamal Khalife
- Institute of Parasitology, Université Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, U1019 – UMR 8204 – Centre d’Infection et d’Immunité de LilleLille, France
- *Correspondence: James J. Valdés, Jamal Khalife,
| | - James J. Valdés
- Institute of Parasitology, Biology Centre of the Czech Academy of Sciences (ACVR)České Budějovice, Czech Republic
- Department of Virology, Veterinary Research InstituteBrno, Czech Republic
- *Correspondence: James J. Valdés, Jamal Khalife,
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Cabezas-Cruz A, Valdés JJ, Lancelot J, Pierce RJ. Fast evolutionary rates associated with functional loss in class I glucose transporters of Schistosoma mansoni. BMC Genomics 2015; 16:980. [PMID: 26584526 PMCID: PMC4653847 DOI: 10.1186/s12864-015-2144-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 10/26/2015] [Indexed: 11/24/2022] Open
Abstract
Background The trematode parasite, Schistosoma mansoni, has evolved to switch from oxidative phosphorylation to glycolysis in the presence of glucose immediately after invading the human host. This metabolic switch is dependent on extracellular glucose concentration. Four glucose transporters are encoded in the genome of S. mansoni, however, only two were shown to facilitate glucose diffusion. Results By modeling the phase of human host infection, we showed that transporter transcript expression profiles of recently transformed schistosomula have two opposing responses to increased glucose concentrations. Concurring with the transcription profiles, our phylogenetic analyses revealed that S. mansoni glucose transporters belong to two separate clusters, one associated with class I glucose transporters from vertebrates and insects, and the other specific to parasitic Platyhelminthes. To study the evolutionary paths of both groups and their functional implications, we determined evolutionary rates, relative divergence times, genomic organization and performed structural analyses with the protein sequences. We finally used the modelled structures of the S. mansoni glucose transporters to biophysically (i) analyze the dynamics of key residues during glucose binding, (ii) test glucose stability within the active site, and (iii) demonstrate glucose diffusion. The two S. mansoni Platyhelminthes-specific glucose transporters, which seem to be younger than the other two, exhibit slower rates of molecular evolution, are encoded by intron-poor genes, and transport glucose. Interestingly, our molecular dynamic analyses suggest that S. mansoni class I glucose transporters are not able to transport glucose. Conclusions The glucose transporter family in S. mansoni exhibit different evolutionary histories. Our results suggested that S. mansoni class I glucose transporters lost their capacity to transport glucose and that this function evolved independently in the Platyhelminthes-specific glucose transporters. Finally, taking into account the differences in the dynamics of glucose transport of the Platyhelminthes-specific transporters of S. mansoni compared to that of humans, we conclude that S. mansoni glucose transporters may be targets for rationally designed drugs against schistosomiasis. Electronic supplementary material The online version of this article (doi:10.1186/s12864-015-2144-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alejandro Cabezas-Cruz
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre d'Infection et d'Immunité de Lille, F-59000, Lille, France.
| | - James J Valdés
- Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, 37005, České Budějovice, Czech Republic.
| | - Julien Lancelot
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre d'Infection et d'Immunité de Lille, F-59000, Lille, France.
| | - Raymond J Pierce
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019 - UMR 8204 - CIIL - Centre d'Infection et d'Immunité de Lille, F-59000, Lille, France.
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22
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Melesina J, Robaa D, Pierce RJ, Romier C, Sippl W. Homology modeling of parasite histone deacetylases to guide the structure-based design of selective inhibitors. J Mol Graph Model 2015; 62:342-361. [DOI: 10.1016/j.jmgm.2015.10.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 10/09/2015] [Accepted: 10/12/2015] [Indexed: 12/12/2022]
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23
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Schiedel M, Marek M, Lancelot J, Karaman B, Almlöf I, Schultz J, Sippl W, Pierce RJ, Romier C, Jung M. Fluorescence-based screening assays for the NAD⁺-dependent histone deacetylase smSirt2 from Schistosoma mansoni. ACTA ACUST UNITED AC 2014; 20:112-21. [PMID: 25325257 DOI: 10.1177/1087057114555307] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Sirtuins are NAD(+)-dependent histone deacetylases (HDACs) that cleave off acetyl but also other acyl groups from the ϵ-amino group of lysines in histones and other substrate proteins. Five sirtuin isoforms are encoded in the genome of the parasitic pathogen Schistosoma mansoni. During its life cycle, S. mansoni undergoes drastic changes in phenotype that are associated with epigenetic modifications. Previous work showed strong effects of hSirt2 inhibitors on both worm life span and reproduction. Thus, we postulate smSirt2 as a new antiparasite target. We report both the optimization of a homogeneous fluorescence-based assay and the development of a new heterogeneous fluorescence-based assay to determine smSirt2 activity. The homogeneous assay uses a coumarin-labeled acetyl lysine derivative, and the heterogeneous version is using a biotinylated and fluorescence-labeled oligopeptide. Magnetic streptavidin-coated beads allow higher substrate loading per well than streptavidin-coated microtiter plates and make it possible to screen for inhibitors of either smSirt2 or its human isoform (hSirt2) for selectivity studies. We also present hits from a pilot screen with inhibitors showing an IC50 lower than 50 µM. Binding of the hits to their targets is rationalized by docking studies using a homology model of smSirt2.
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Affiliation(s)
- Matthias Schiedel
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
| | - 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
| | - Berin Karaman
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | | | | | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - 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
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire (IGBMC), Université de Strasbourg (UDS), CNRS, INSERM, Illkirch, France
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
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24
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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25
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Cabezas-Cruz A, Lancelot J, Caby S, Oliveira G, Pierce RJ. Epigenetic control of gene function in schistosomes: a source of therapeutic targets? Front Genet 2014; 5:317. [PMID: 25309576 PMCID: PMC4159997 DOI: 10.3389/fgene.2014.00317] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Accepted: 08/24/2014] [Indexed: 12/31/2022] Open
Abstract
The discovery of the epigenetic regulation of gene expression has revolutionized both our understanding of how genomes function and approaches to the therapy of numerous pathologies. Schistosomes are metazoan parasites and as such utilize most, if not all the epigenetic mechanisms in play in their vertebrate hosts: histone variants, histone tail modifications, non-coding RNA and, perhaps, DNA methylation. Moreover, we are acquiring an increasing understanding of the ways in which these mechanisms come into play during the complex schistosome developmental program. In turn, interest in the actors involved in epigenetic mechanisms, particularly the enzymes that carry out epigenetic modifications of histones or nucleic acid, as therapeutic targets has been stimulated by the finding that their inhibitors exert profound effects, not only on survival, but also on the reproductive function of Schistosoma mansoni. Here, we review our current knowledge, and what we can infer, about the role of epigenetic mechanisms in schistosome development, differentiation and survival. We will consider which epigenetic actors can be targeted for drug discovery and what strategies can be employed to develop potent, selective inhibitors as drugs to cure schistosomiasis.
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Affiliation(s)
- Alejandro Cabezas-Cruz
- Institut National de la Santé et de la Recherche Médicale U1019 - Centre National de la Recherche Scientifique UMR 8204, Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Université de Lille Lille, France
| | - Julien Lancelot
- Institut National de la Santé et de la Recherche Médicale U1019 - Centre National de la Recherche Scientifique UMR 8204, Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Université de Lille Lille, France
| | - Stéphanie Caby
- Institut National de la Santé et de la Recherche Médicale U1019 - Centre National de la Recherche Scientifique UMR 8204, Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Université de Lille Lille, France
| | - Guilherme Oliveira
- Genomics and Computational Biology Group, Fundação Oswaldo Cruz, Center for Excellence in Bioinformatics, Centro de Pesquisas René Rachou, National Institute of Science and Technology in Tropical Diseases Belo Horizonte, Brazil
| | - Raymond J Pierce
- Institut National de la Santé et de la Recherche Médicale U1019 - Centre National de la Recherche Scientifique UMR 8204, Center for Infection and Immunity of Lille, Institut Pasteur de Lille, Université de Lille Lille, France
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26
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Carneiro VC, de Abreu da Silva IC, Torres EJL, Caby S, Lancelot J, Vanderstraete M, Furdas SD, Jung M, Pierce RJ, Fantappié MR. Epigenetic changes modulate schistosome egg formation and are a novel target for reducing transmission of schistosomiasis. PLoS Pathog 2014; 10:e1004116. [PMID: 24809504 PMCID: PMC4014452 DOI: 10.1371/journal.ppat.1004116] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 03/30/2014] [Indexed: 01/23/2023] Open
Abstract
Treatment and control of schistosomiasis relies on the only available drug, praziquantel, and the search for alternative chemotherapeutic agents is therefore urgent. Egg production is required for the transmission and immunopathology of schistosomiasis and females of S. mansoni lay 300 eggs daily. A large fraction of the total mRNA in the mature female worm encodes one eggshell protein, Smp14. We report that the nuclear receptors SmRXR1 and SmNR1 regulate Smp14 transcription through the recruitment of two histone acetyltransferases (HATs), SmGCN5 and SmCBP1. The treatment of HEK293 cells with histone deacetylase (HDAC) inhibitors (NaB or TSA) produced an 8-fold activation of the SmRXR1/SmNR1-mediated Smp14 promoter activity. Incubation with synthetic HAT inhibitors, including PU139, significantly impaired the Smp14 promoter activity in these cells. Worm pairs cultivated in the presence of PU139 exhibited limited expression of Smp14 mRNA and protein. ChIP analysis demonstrated chromatin condensation at the Smp14 promoter site in worms treated with PU139. ChIP also revealed the presence of H3K27me3 and the absence of RNA Pol II at the Smp14 promoter region in the PU139-treated worms. Most significantly, the PU139-mediated inhibition of Smp14 expression resulted in a significant number of abnormal eggs as well as defective eggs within the ootype. In addition, scanning electron microscopy revealed structural defects and unformed eggshells, and vitelline cell leakage was apparent. The dsRNAi-targeting of SmGCN5 or SmCBP1 significantly decreased Smp14 transcription and protein synthesis, which compromised the reproductive system of mature female worms, egg-laying and egg morphology. Our data strongly suggest that the inhibition of Smp14 expression targeting SmGCN5 and/or SmCBP1 represents a novel and effective strategy to control S. mansoni egg development. Schistosoma mansoni is a parasitic worm that causes schistosomiasis, a debilitating disease in Africa and South America. Female worms mated with males produce hundreds of eggs that can reach the environment to propagate the biological cycle, or become trapped in host tissues, triggering inflammation and pathology. Because eggshell formation is a key step in egg development and viability, we have studied the molecular mechanisms of S. mansoni eggshell development, focusing on a major eggshell gene, Smp14. Using a variety of technical and biological approaches, we obtained strong evidence that eggshell formation depends on nuclear receptors and coactivators with chromatin modifying activities, mainly histone acetylation. Inhibition or partial deletion of S. mansoni histone acetyltransferases impaired the expression of Smp14, culminating in a severe negative effect on eggshell formation. Our findings will contribute not only to a better understanding of sex and tissue-specific gene regulation in S. mansoni but also provide an alternative strategy for interfering with the egg production, which might be targeted in novel therapeutics directed against this parasite.
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Affiliation(s)
- Vitor Coutinho Carneiro
- Instituto de Bioquímica Médica, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | - Isabel Caetano de Abreu da Silva
- Instituto de Bioquímica Médica, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
| | | | - Stephany Caby
- CIIL, INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Julien Lancelot
- CIIL, INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Mathieu Vanderstraete
- CIIL, INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Silviya D. Furdas
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University, Freiburg, Germany
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-University, Freiburg, Germany
| | - Raymond J. Pierce
- CIIL, INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
- * E-mail: (RJP); (MRF)
| | - Marcelo Rosado Fantappié
- Instituto de Bioquímica Médica, Programa de Biologia Molecular e Biotecnologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- * E-mail: (RJP); (MRF)
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27
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Stolfa DA, Marek M, Lancelot J, Hauser AT, Walter A, Leproult E, Melesina J, Rumpf T, Wurtz JM, Cavarelli J, Sippl W, Pierce RJ, Romier C, Jung M. Molecular basis for the antiparasitic activity of a mercaptoacetamide derivative that inhibits histone deacetylase 8 (HDAC8) from the human pathogen schistosoma mansoni. J Mol Biol 2014; 426:3442-53. [PMID: 24657767 DOI: 10.1016/j.jmb.2014.03.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 03/13/2014] [Accepted: 03/13/2014] [Indexed: 10/25/2022]
Abstract
Schistosomiasis, caused by the parasitic flatworm Schistosoma mansoni and related species, is a tropical disease that affects over 200 million people worldwide. A new approach for targeting eukaryotic parasites is to tackle their dynamic epigenetic machinery that is necessary for the extensive phenotypic changes during the life cycle of the parasite. Recently, we identified S. mansoni histone deacetylase 8 (smHDAC8) as a potential target for antiparasitic therapy. Here, we present results on the investigations of a focused set of HDAC (histone deacetylase) inhibitors on smHDAC8. Besides several active hydroxamates, we identified a thiol-based inhibitor that inhibited smHDAC8 activity in the micromolar range with unexpected selectivity over the human isotype, which has not been observed so far. The crystal structure of smHDAC8 complexed with the thiol derivative revealed that the inhibitor is accommodated in the catalytic pocket, where it interacts with both the catalytic zinc ion and the essential catalytic tyrosine (Y341) residue via its mercaptoacetamide warhead. To our knowledge, this is the first complex crystal structure of any HDAC inhibited by a mercaptoacetamide inhibitor, and therefore, this finding offers a rationale for further improvement. Finally, an ester prodrug of the thiol HDAC inhibitor exhibited antiparasitic activity on cultured schistosomes in a dose-dependent manner.
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Affiliation(s)
- Diana A Stolfa
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Martin Marek
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Julien Lancelot
- Center for Infection and Immunity of Lille, INSERM U1019-CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, 1 rue Professeur Calmette, F-59019 Lille Cedex, France
| | - Alexander-Thomas Hauser
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Alexandra Walter
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany; German Cancer Consortium (DKTK), Freiburg, Germany; German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Emeline Leproult
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Jelena Melesina
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | - Tobias Rumpf
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany
| | - Jean-Marie Wurtz
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Jean Cavarelli
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France
| | - Wolfgang Sippl
- Institute of Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Straße 4, 06120 Halle/Saale, Germany
| | - Raymond J Pierce
- Center for Infection and Immunity of Lille, INSERM U1019-CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, 1 rue Professeur Calmette, F-59019 Lille Cedex, France
| | - Christophe Romier
- Département de Biologie Structurale Intégrative, Institut de Génétique et Biologie Moléculaire et Cellulaire, Université de Strasbourg, CNRS, INSERM, 1 rue Laurent Fries, BP 10142, 67404 Illkirch Cedex, France.
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, Albert-Ludwigs-Universität Freiburg, Albertstraße 25, 79104 Freiburg, Germany.
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Lancelot J, Caby S, Dubois-Abdesselem F, Vanderstraete M, Trolet J, Oliveira G, Bracher F, Jung M, Pierce RJ. Schistosoma mansoni Sirtuins: characterization and potential as chemotherapeutic targets. PLoS Negl Trop Dis 2013; 7:e2428. [PMID: 24069483 PMCID: PMC3772001 DOI: 10.1371/journal.pntd.0002428] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 08/02/2013] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The chemotherapy of schistosomiasis currently depends on the use of a single drug, praziquantel. In order to develop novel chemotherapeutic agents we are investigating enzymes involved in the epigenetic modification of chromatin. Sirtuins are NAD+ dependent lysine deacetylases that are involved in a wide variety of cellular processes including histone deacetylation, and have been demonstrated to be therapeutic targets in various pathologies, including cancer. METHODOLOGY PRINCIPAL FINDINGS In order to determine whether Schistosoma mansoni sirtuins are potential therapeutic targets we first identified and characterized their protein sequences. Five sirtuins (SmSirt) are encoded in the S. mansoni genome and phylogenetic analysis showed that they are orthologues of mammalian Sirt1, Sirt2, Sirt5, Sirt6 and Sirt7. Both SmSirt1 and SmSirt7 have large insertion in the catalytic domain compared to their mammalian orthologues. SmSirt5 is the only mitochondrial sirtuin encoded in the parasite genome (orthologues of Sirt3 and Sirt4 are absent) and transcripts corresponding to at least five splicing isoforms were identified. All five sirtuins are expressed throughout the parasite life-cycle, but with distinct patterns of expression. Sirtuin inhibitors were used to treat both schistosomula and adult worms maintained in culture. Three inhibitors in particular, Sirtinol, Salermide and MS3 induced apoptosis and death of schistosomula, the separation of adult worm pairs, and a reduction in egg laying. Moreover, Salermide treatment led to a marked disruption of the morphology of ovaries and testes. Transcriptional knockdown of SmSirt1 by RNA interference in adult worms led to morphological changes in the ovaries characterized by a marked increase in mature oocytes, reiterating the effects of sirtuin inhibitors and suggesting that SmSirt1 is their principal target. CONCLUSION SIGNIFICANCE Our data demonstrate the potential of schistosome sirtuins as therapeutic targets and validate screening for selective sirtuin inhibitors as a strategy for developing new drugs against schistosomiasis.
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Affiliation(s)
- 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
| | - 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
| | - Florence Dubois-Abdesselem
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Mathieu Vanderstraete
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, France
| | - Jacques Trolet
- Center for Infection and Immunity of Lille (CIIL), INSERM U1019 – CNRS UMR 8204, Université Lille Nord de France, Institut Pasteur de Lille, Lille, 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
| | - Franz Bracher
- Department für Pharmazie, Zentrum für Pharmaforschung, Ludwig-Maximilians-Universität, München, Germany
| | - Manfred Jung
- Institut für Pharmazeutische Wissenschaften, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - 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:
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Fréville A, Cailliau-Maggio K, Pierrot C, Tellier G, Kalamou H, Lafitte S, Martoriati A, Pierce RJ, Bodart JF, Khalife J. Plasmodium falciparum encodes a conserved active inhibitor-2 for Protein Phosphatase type 1: perspectives for novel anti-plasmodial therapy. BMC Biol 2013; 11:80. [PMID: 23837822 PMCID: PMC3735429 DOI: 10.1186/1741-7007-11-80] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 06/18/2013] [Indexed: 01/21/2023] Open
Abstract
Background It is clear that the coordinated and reciprocal actions of kinases and phosphatases are fundamental in the regulation of development and growth of the malaria parasite. Protein Phosphatase type 1 is a key enzyme playing diverse and essential roles in cell survival. Its dephosphorylation activity/specificity is governed by the interaction of its catalytic subunit (PP1c) with regulatory proteins. Among these, inhibitor-2 (I2) is one of the most evolutionarily ancient PP1 regulators. In vivo studies in various organisms revealed a defect in chromosome segregation and cell cycle progression when the function of I2 is blocked. Results In this report, we present evidence that Plasmodium falciparum, the causative agent of the most deadly form of malaria, expresses a structural homolog of mammalian I2, named PfI2. Biochemical, in vitro and in vivo studies revealed that PfI2 binds PP1 and inhibits its activity. We further showed that the motifs 12KTISW16 and 102HYNE105 are critical for PfI2 inhibitory activity. Functional studies using the Xenopus oocyte model revealed that PfI2 is able to overcome the G2/M cell cycle checkpoint by inducing germinal vesicle breakdown. Genetic manipulations in P. falciparum suggest an essential role of PfI2 as no viable mutants with a disrupted PfI2 gene were detectable. Additionally, peptides derived from PfI2 and competing with RVxF binding sites in PP1 exhibit anti-plasmodial activity against blood stage parasites in vitro. Conclusions Taken together, our data suggest that the PfI2 protein could play a role in the regulation of the P. falciparum cell cycle through its PfPP1 phosphatase regulatory activity. Structure-activity studies of this regulator led to the identification of peptides with anti-plasmodial activity against blood stage parasites in vitro suggesting that PP1c-regulator interactions could be a novel means to control malaria.
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Affiliation(s)
- Aline Fréville
- Center for Infection and Immunity of Lille, Inserm U1019-CNRS UMR 8204, University of Lille Nord de France, Institut Pasteur de Lille, 1 Rue du Professeur Calmette, 59019 Lille, Cedex, France.
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Bitar M, Drummond MG, Costa MGS, Lobo FP, Calzavara-Silva CE, Bisch PM, Machado CR, Macedo AM, Pierce RJ, Franco GR. Modeling the zing finger protein SmZF1 from Schistosoma mansoni: Insights into DNA binding and gene regulation. J Mol Graph Model 2012; 39:29-38. [PMID: 23220279 DOI: 10.1016/j.jmgm.2012.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2012] [Revised: 10/09/2012] [Accepted: 10/13/2012] [Indexed: 10/27/2022]
Abstract
Zinc finger proteins are widely found in eukaryotes, representing an important class of DNA-binding proteins frequently involved in transcriptional regulation. Zinc finger motifs are composed by two antiparallel β-strands and one α-helix, stabilized by a zinc ion coordinated by conserved histidine and cysteine residues. In Schistosoma mansoni, these regulatory proteins are known to modulate morphological and physiological changes, having crucial roles in parasite development. A previously described C(2)H(2) zinc finger protein, SmZF1, was shown to be present in cell nuclei of different life stages of S. mansoni and to activate gene transcription in a heterologous system. A high-quality SmZF1 tridimensional structure was generated using comparative modeling. Molecular dynamics simulations of the obtained structure revealed stability of the zinc fingers motifs and high flexibility on the terminals, comparable to the profile observed on the template X-ray structure based on thermal b-factors. Based on the protein tridimensional features and amino acid composition, we were able to characterize four C(2)H(2) zinc finger motifs, the first involved in protein-protein interactions while the three others involved in DNA binding. We defined a consensus DNA binding sequence using three distinct algorithms and further carried out docking calculations, which revealed the interaction of fingers 2-4 with the predicted DNA. A search for S. mansoni genes presenting putative SmZF1 binding sites revealed 415 genes hypothetically under SmZF1 control. Using an automatic annotation and GO assignment approach, we found that the majority of those genes code for proteins involved in developmental processes. Taken together, these results present a consistent base to the structural and functional characterization of SmZF1.
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Affiliation(s)
- Mainá Bitar
- Laboratório de Física Biológica, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Anderson L, Pierce RJ, Verjovski-Almeida S. Schistosoma mansoni histones: From transcription to chromatin regulation; an in silico analysis. Mol Biochem Parasitol 2012; 183:105-14. [DOI: 10.1016/j.molbiopara.2012.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 02/29/2012] [Accepted: 03/01/2012] [Indexed: 11/25/2022]
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Pierce RJ, Dubois-Abdesselem F, Lancelot J, Andrade L, Oliveira G. Targeting schistosome histone modifying enzymes for drug development. Curr Pharm Des 2012; 18:3567-3578. [PMID: 22607147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Accepted: 03/09/2012] [Indexed: 05/31/2023]
Abstract
The histone modifying enzymes (HME) represent particularly promising targets for the development of alternatives to praziquantel, the only currently available drug to combat schistosomiasis. The inhibition of these enzymes frequently arrests the cell cycle or induces apoptosis in cancer cells, but not in normal cells and numerous HME inhibitors are under investigation as potential anticancer agents. The recent resolution of the genome sequences of Schistosoma mansoni and Schistosoma japonicum has allowed us to identify all the schistosome genes encoding histone acetyltransferases, deacetylases, methyltransferases and demethylases. We have chosen a strategy using phylogenetic screening with inhibitors of HME classes, screening of individual HME targets by both high-throughput and reasoned (in silico docking using resolved crystal structures) approaches in a project funded by the European Community, named SEtTReND (Schistosome Epigenetics: Targets, Regulation, New Drugs). The initial focus is on the class I histone deacetylase (HDAC) 8 since the comparison of the catalytic site of the schistosome and human enzymes shows crucial differences, rendering possible the development of inhibitors specific for SmHDAC8. However, phenotypic screening shows that inhibitors of all HME classes tested were able to induce apoptosis and death in parasites in vitro, indicating that other enzymes may prove to be viable targets.
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Pierrot C, dit Vampouille AA, Vandomme A, Lafitte S, Pierce RJ, Hot D, Khalife J. Gene profiling analysis reveals the contribution of CD24 and P2Y6R to the susceptibility of young rats to Plasmodium berghei infection. Cell Microbiol 2011; 13:752-63. [PMID: 21323829 DOI: 10.1111/j.1462-5822.2011.01574.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Our previous studies have shown that Plasmodium berghei infection induces distinct clinical, parasitological and immunological states in young susceptible rats versus adult resistant rats. This susceptibility was mainly found to be related to inadequate cellular responses. In this study we first identified the altered genes in young susceptible rats. Unexpectedly, transcriptome analysis did not reveal any alteration of effector cytokines or their receptors. At day 13 p.i., six transcripts corresponding to faim3, mesothelin, gas3 (PMP22), gas7, CD24 and P2Y6R were significantly decreased in young infected rats when compared with adult infected rats. Because CD24 and P2Y6R participate in cellular immune responses, we next evaluated their role in the course of infection. Adoptive transfer experiments showed a transient but robust participation of CD24+ cells in the control of parasitaemia. The role of P2Y6R was investigated via its specific ability to be activated by Uridine di-Phosphate (UDP). Young rats treated with UDP partially restored the expression of P2Y6R, controlled parasitaemia and survived thereafter. In conclusion, this study contributes to the discovery of novel biomarkers in young susceptible rats and suggests that the decrease in their expression could be among the reasons for the development of severe pathology in malaria.
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Affiliation(s)
- Christine Pierrot
- Center for Infection and Immunity of Lille, Institut Pasteur de Lille, INSERM U1019, CNRS UMR8204, University Lille Nord de France, IFR 142, 1 rue du Professeur A. Calmette, 59019 Lille, France
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Beltran S, Gourbal B, Boissier J, Duval D, Kieffer-Jaquinod S, Pierce RJ, Grunau C, Théron A, Mitta G. Vertebrate host protective immunity drives genetic diversity and antigenic polymorphism in Schistosoma mansoni. J Evol Biol 2010; 24:554-72. [PMID: 21159003 DOI: 10.1111/j.1420-9101.2010.02190.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Schistosomes are gonochoric blood parasites with a complex life cycle responsible for a disease of considerable medical and veterinary importance in tropical and subtropical regions. Understanding the evolution of schistosome genetic diversity is clearly of fundamental importance to interpreting schistosomiasis epidemiology and disease transmission patterns of this parasite. In this article, we investigated the putative role of the host immune system in the selection of male genetic diversity. We demonstrated the link between genetic dissimilarity and the protective effect among male worms. We then compared the proteomes of three male clones with different genotypes and differing by their capacity to protect against reinfection. The identified differences correspond mainly to antigens known or supposed to be involved in the induction of protective immunity. These results underline the role played by host immune system in the selection of schistosome genetic diversity that is linked to antigenic diversity. We discuss the evolutionary consequences in the context of schistosome infection.
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Affiliation(s)
- S Beltran
- Parasitologie Fonctionnelle et Evolutive, CNRS Université de Perpignan, Perpignan Cedex, France.
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Pierce RJ, Mitta G, Roger E. [Schistosome genomes: a key step in the war on the worm]. Med Sci (Paris) 2009; 25:761-2. [PMID: 19765394 DOI: 10.1051/medsci/2009258-9761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Berriman M, Haas BJ, LoVerde PT, Wilson RA, Dillon GP, Cerqueira GC, Mashiyama ST, Al-Lazikani B, Andrade LF, Ashton PD, Aslett MA, Bartholomeu DC, Blandin G, Caffrey CR, Coghlan A, Coulson R, Day TA, Delcher A, DeMarco R, Djikeng A, Eyre T, Gamble JA, Ghedin E, Gu Y, Hertz-Fowler C, Hirai H, Hirai Y, Houston R, Ivens A, Johnston DA, Lacerda D, Macedo CD, McVeigh P, Ning Z, Oliveira G, Overington JP, Parkhill J, Pertea M, Pierce RJ, Protasio AV, Quail MA, Rajandream MA, Rogers J, Sajid M, Salzberg SL, Stanke M, Tivey AR, White O, Williams DL, Wortman J, Wu W, Zamanian M, Zerlotini A, Fraser-Liggett CM, Barrell BG, El-Sayed NM. The genome of the blood fluke Schistosoma mansoni. Nature 2009; 460:352-8. [PMID: 19606141 PMCID: PMC2756445 DOI: 10.1038/nature08160] [Citation(s) in RCA: 801] [Impact Index Per Article: 53.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2009] [Accepted: 05/22/2009] [Indexed: 11/24/2022]
Abstract
Schistosoma mansoni is responsible for the neglected tropical disease schistosomiasis that affects 210 million people in 76 countries. We report here analysis of the 363 megabase nuclear genome of the blood fluke. It encodes at least 11,809 genes, with an unusual intron size distribution, and novel families of micro-exon genes that undergo frequent alternate splicing. As the first sequenced flatworm, and a representative of the lophotrochozoa, it offers insights into early events in the evolution of the animals, including the development of a body pattern with bilateral symmetry, and the development of tissues into organs. Our analysis has been informed by the need to find new drug targets. The deficits in lipid metabolism that make schistosomes dependent on the host are revealed, while the identification of membrane receptors, ion channels and more than 300 proteases, provide new insights into the biology of the life cycle and novel targets. Bioinformatics approaches have identified metabolic chokepoints while a chemogenomic screen has pinpointed schistosome proteins for which existing drugs may be active. The information generated provides an invaluable resource for the research community to develop much needed new control tools for the treatment and eradication of this important and neglected disease.
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Dubois F, Caby S, Oger F, Cosseau C, Capron M, Grunau C, Dissous C, Pierce RJ. Histone deacetylase inhibitors induce apoptosis, histone hyperacetylation and up-regulation of gene transcription in Schistosoma mansoni. Mol Biochem Parasitol 2009; 168:7-15. [PMID: 19538992 DOI: 10.1016/j.molbiopara.2009.06.001] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 06/04/2009] [Accepted: 06/05/2009] [Indexed: 12/31/2022]
Abstract
In order to explore the conservation/divergence of transcriptional regulation in the platyhelminth parasite Schistosoma mansoni, we are studying the structures and functions of transcriptional mediators and in particular histone-modifying enzymes. Reversible histone acetylation changes chromatin structure and modulates gene transcription. The removal of acetyl residues from histones and other proteins is catalyzed by histone deacetylases (HDACs) that are under increasing study as therapeutic targets, both in cancer and parasitic diseases. In order to determine the extent and importance of histone acetylation in S. mansoni, we tested the effects of three histone deacetylase inhibitors (HDACi) on both larval and adult worms in culture. Trichostatin A (TSA), valproic acid (VPA) and suberoylanilide hydroxamic acid (SAHA) inhibited global HDAC activity at all life-cycle stages. TSA and VPA, but not SAHA, caused mortality of schistosomula and adults, with TSA showing the most rapid effect. Moreover, TSA caused an increase in apoptosis in schistosomula shown by the TUNEL assay and an increase in caspase 3/7 activity. Both TSA and VPA were shown to cause an increase in general levels of protein acetylation in schistosomes; more particularly of histone 4 whereas histone 3 acetylation was less affected. In the case of TSA treatment this histone hyperacetylation was correlated with the increased expression of caspases 3 and 7 transcripts. Finally, quantitative chromatin immunoprecipitation showed that the proximal promoter region of the S. mansoni caspase 7 gene was hyperacetylated on histone H4 after TSA treatment.
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Affiliation(s)
- Florence Dubois
- INSERM U 547, Institut Pasteur de Lille, IFR 142, 1 rue du Professeur A. Calmette, Lille, France
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Duboucher C, Boggia R, Morel G, Capron M, Pierce RJ, Dei-Cas E, Viscogliosi E. Pneumocystis pneumonia: immunosuppression, Pneumocystis jirovecii...and the third man. Nat Rev Microbiol 2009; 5. [PMID: 19507333 DOI: 10.1038/nrmicro1621-c1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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McEvoy RD, Pierce RJ, Hillman D, Esterman A, Ellis EE, Catcheside PG, O'Donoghue FJ, Barnes DJ, Grunstein RR. Nocturnal non-invasive nasal ventilation in stable hypercapnic COPD: a randomised controlled trial. Thorax 2009; 64:561-6. [PMID: 19213769 DOI: 10.1136/thx.2008.108274] [Citation(s) in RCA: 242] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- R D McEvoy
- Adelaide Institute for Sleep Health, Repatriation General Hospital and Flinders University, Australia.
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Roger E, Grunau C, Pierce RJ, Hirai H, Gourbal B, Galinier R, Emans R, Cesari IM, Cosseau C, Mitta G. Controlled chaos of polymorphic mucins in a metazoan parasite (Schistosoma mansoni) interacting with its invertebrate host (Biomphalaria glabrata). PLoS Negl Trop Dis 2008; 2:e330. [PMID: 19002242 PMCID: PMC2576457 DOI: 10.1371/journal.pntd.0000330] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2008] [Accepted: 10/10/2008] [Indexed: 01/21/2023] Open
Abstract
Invertebrates were long thought to possess only a simple, effective and hence non-adaptive defence system against microbial and parasitic attacks. However, recent studies have shown that invertebrate immunity also relies on immune receptors that diversify (e.g. in echinoderms, insects and mollusks (Biomphalaria glabrata)). Apparently, individual or population-based polymorphism-generating mechanisms exists that permit the survival of invertebrate species exposed to parasites. Consequently, the generally accepted arms race hypothesis predicts that molecular diversity and polymorphism also exist in parasites of invertebrates. We investigated the diversity and polymorphism of parasite molecules (Schistosoma mansoni Polymorphic Mucins, SmPoMucs) that are key factors for the compatibility of schistosomes interacting with their host, the mollusc Biomphalaria glabrata. We have elucidated the complex cascade of mechanisms acting both at the genomic level and during expression that confer polymorphism to SmPoMuc. We show that SmPoMuc is coded by a multi-gene family whose members frequently recombine. We show that these genes are transcribed in an individual-specific manner, and that for each gene, multiple splice variants exist. Finally, we reveal the impact of this polymorphism on the SmPoMuc glycosylation status. Our data support the view that S. mansoni has evolved a complex hierarchical system that efficiently generates a high degree of polymorphism—a “controlled chaos”—based on a relatively low number of genes. This contrasts with protozoan parasites that generate antigenic variation from large sets of genes such as Trypanosoma cruzi, Trypanosoma brucei and Plasmodium falciparum. Our data support the view that the interaction between parasites and their invertebrate hosts are far more complex than previously thought. While most studies in this matter have focused on invertebrate host diversification, we clearly show that diversifying mechanisms also exist on the parasite side of the interaction. Our findings shed new light on how and why invertebrate immunity develops. Contrary to the traditional view that immunity in invertebrates is limited to non-specific mechanisms, recent studies have shown that they have diverse, specific immune receptors. An example is provided by the FREPs of the mollusk Biomphalaria glabrata, polymorphic members of the immunoglobulin superfamily. This capacity for an individual or population-based polymorphic immune response raises the question of whether a corresponding polymorphism exists in parasites of invertebrates, as would be expected in an “arms race” between host and parasite. We have indeed identified such polymorphic molecules in Schistosoma mansoni, a flatworm parasite of B. glabrata, by comparing two strains of schistosome that are respectively compatible and incompatible with the same mollusk host strain. However, in contrast to antigenic variation in protozoan parasites that is based on an extensive gene repertoire, we show here that a high level of polymorphism in these S. mansoni polymorphic mucins (SmPoMucs) is generated from a low number of genes by a complex cascade of mechanisms, a “controlled chaos”.
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Affiliation(s)
- Emmanuel Roger
- Parasitologie Fonctionnelle et Evolutive, UMR 5244, CNRS Université de Perpignan, Perpignan, France
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Duboucher C, Pierce RJ, Capron M, Dei-Cas E, Viscogliosi E. Recent advances in pulmonary trichomonosis. Trends Parasitol 2008; 24:201-2. [PMID: 18424234 DOI: 10.1016/j.pt.2008.02.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2008] [Revised: 02/04/2008] [Accepted: 02/04/2008] [Indexed: 11/26/2022]
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Dufernez F, Derelle E, Noël C, Sanciu G, Mantini C, Dive D, Soyer-Gobillard MO, Capron M, Pierce RJ, Wintjens R, Guillebault D, Viscogliosi E. Molecular characterization of iron-containing superoxide dismutases in the heterotrophic dinoflagellate Crypthecodinium cohnii. Protist 2008; 159:223-38. [PMID: 18276189 DOI: 10.1016/j.protis.2007.11.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2007] [Accepted: 11/30/2007] [Indexed: 11/26/2022]
Abstract
Superoxide dismutases (SODs) are a family of antioxidant enzymes that catalyse the degradation of toxic superoxide radicals in obligate and facultative aerobic organisms. Here, we report the presence of a multi-copy gene family encoding SODs in the heterotrophic dinoflagellate Crypthecodinium cohnii. All the genes identified (sod1 to sod17) have been cloned and sequenced, and shown to encode potentially functional dimeric iron-containing SOD isozymes. Our data revealed a considerable molecular heterogeneity of this enzyme in C. cohnii at both genomic and transcriptional levels. The C. cohnii SOD1, overexpressed in Escherichia coli, was active and its structure obtained by homology modeling using X-ray crystal structures of homologues exhibited the typical fold of dimeric FeSODs. Phylogenetic studies including 110 other dimeric FeSODs and closely related cambialistic dimeric SOD sequences showed that the C. cohnii SODs form a monophyletic group and have all been acquired by the same event of horizontal gene transfer. It also revealed a dichotomy within the C. cohnii SOD sequences that could be explained by an ancestral sod gene duplication followed by subsequent gene duplications within each of the two groups. Enzyme assays of SOD activity indicated the presence of two FeSOD activities in C. cohnii cell lysate whereas MnSOD and Cu/ZnSOD were not detected. These activities contrasted with the SOD repertoire previously characterized in photosynthetic dinoflagellates. To explain these differences, a hypothetical evolutionary scenario is proposed that suggests gains and losses of sod genes in dinoflagellates.
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Affiliation(s)
- Fabienne Dufernez
- Institut Pasteur de Lille, Université Lille 2, 59019 Lille cedex, France
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Roger E, Gourbal B, Grunau C, Pierce RJ, Galinier R, Mitta G. Expression analysis of highly polymorphic mucin proteins (Sm PoMuc) from the parasite Schistosoma mansoni. Mol Biochem Parasitol 2008; 157:217-27. [DOI: 10.1016/j.molbiopara.2007.11.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2007] [Revised: 10/23/2007] [Accepted: 11/27/2007] [Indexed: 01/23/2023]
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Yan Y, Tulasne D, Browaeys E, Cailliau K, Khayath N, Pierce RJ, Trolet J, Fafeur V, Ben Younes A, Dissous C. Molecular cloning and characterisation of SmSLK, a novel Ste20-like kinase in Schistosoma mansoni. Int J Parasitol 2007; 37:1539-50. [PMID: 17651740 DOI: 10.1016/j.ijpara.2007.06.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2007] [Revised: 06/05/2007] [Accepted: 06/08/2007] [Indexed: 11/25/2022]
Abstract
Serine/threonine kinases of the Ste20 group play important roles in various cellular functions such as growth, apoptosis and morphogenesis. This family includes p21-Activated Kinases (PAKs) and Germinal Center Kinases (GCKs) families which contain their kinase domain in the C-terminal and N-terminal position, respectively. Here, we report the characterisation of a novel Ste20-like kinase (SLK) in the helminth parasite Schistosoma mansoni (SmSLK). SmSLK belongs to the GCK subfamily and contains a conserved N-terminal Ste20-like catalytic domain and C-terminal coiled-coil structures homologous to mammalian Lymphocyte Oriented Kinase (LOK) and SLK kinases and described as regulatory domains in these proteins. Gene assembly was performed using S. mansoni sequences available from genomic databases and indicated that SmSLK is composed of 18 exons and present in one copy in the S. mansoni genome. RT-PCR experiments demonstrated an alternative splicing of SmSLK in the exon 9 encoding the hinge region between kinase and coiled-coil domains of SmSLK and showed the expression of both transcript isoforms (SmSLK and SmSLK-S in which exon 9 is deleted) in all the S. mansoni parasite stages. Most of the Ste20-related proteins are active kinases known to regulate mitogen-activated protein kinase (MAPK) cascades. We demonstrated the kinase activity of SmSLK and SmSLK-S and their capacity to activate the MAPK/Jun N-terminal kinase (JNK) pathway in human embryonic kidney (HEK) cells as well as in Xenopus oocytes. Immunofluorescence studies indicated that SmSLK proteins were abundant in the tegument of adult schistosomes. Therefore, these results indicate that SmSLK is a new member of the GCK protein family that could participate in the regulation of MAPK cascade activation during host-parasite interactions.
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Noël C, Noda S, Mantini C, Dolan MF, Moriya S, Delgado-Viscogliosi P, Kudo T, Capron M, Pierce RJ, Ohkuma M, Viscogliosi E. Molecular phylogenetic position of the genera Stephanonympha and Caduceia (Parabasalia) inferred from nuclear small subunit rRNA gene sequences. J Eukaryot Microbiol 2007; 54:93-9. [PMID: 17300526 DOI: 10.1111/j.1550-7408.2006.00234.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Nuclear small subunit (SSU) rRNA gene sequences were obtained by polymerase chain reaction from trichomonad symbionts of termites that belong to the Devescovinidae (Caduceia versatilis) and polymastigont Calonymphidae (Stephanonympha nelumbium). The unidentified SSU rRNA sequence Nk3, previously obtained from the termite Neotermes koshunensis, has also been shown to derive from a Stephanonympha sp. by in situ hybridization. These sequences were analysed in a broad phylogeny including nearly all identified parabasalid sequences available in the databases, and some as yet unidentified sequences likely deriving from the new order Cristamonadida (Devescovinidae, Calonymphidae, and hypermastigids Lophomonadida). A global phylogeny of parabasalids reveals a partial agreement between the clades identified in this work and the last classification of this phylum into four orders. However, this classification is still incongruent with our data and new taxonomic considerations are proposed. The analysis confirms the monophyly of the Cristamonadida and separates this order into two groups: the first unites nearly all the Devescovinidae including Caduceia and the Calonymphidae Coronympha and Metacoronympha, whereas the second group is composed of a few Devescovinidae, Lophomonadida, and Calonymphidae such as Stephanonympha. Caduceia is closely related to Devescovina, corroborating the marked morphological similarity between these two genera whereas Stephanonympha groups together with the Calonymphidae Snyderella and Calonympha. These data also confirm the polyphyly of the families Devescovinidae and Calonymphidae and support the arrangement of the axostyle-pelta complexes as a valuable character for taxonomic considerations within the Calonymphidae.
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Affiliation(s)
- Christophe Noël
- Inserm, U547, Institut Pasteur de Lille, 1 Rue du Professeur Calmette, BP 245, 59019 Lille cedex, France
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Dufernez F, Walker RL, Noël C, Caby S, Mantini C, Delgado-Viscogliosi P, Ohkuma M, Kudo T, Capron M, Pierce RJ, Villanueva MR, Viscogliosi E. Morphological and molecular identification of non-Tritrichomonas foetus trichomonad protozoa from the bovine preputial cavity. J Eukaryot Microbiol 2007; 54:161-8. [PMID: 17403157 DOI: 10.1111/j.1550-7408.2007.00247.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tritrichomonas foetus is the causative agent of bovine trichomonosis. This protozoan is found in the preputial cavity of bulls and is transmitted to cows during coitus. Currently, the diagnosis of this parasite is based on microscopic examination of preputial washings or scrapings, but it was recently recognized that other trichomonads similar in size, shape, and motility to T. foetus can be present in preputial samples. Despite the serious consequences of an incorrect diagnosis for bovine trichomonosis, the precise speciation of these other trichomonads has remained uncertain. Here, a total of 12 non-T. foetus isolates were microscopically examined. On the basis of morphological criteria, seven of these isolates were identified as Tetratrichomonas sp., whereas four other isolates coincided with the description of Pentatrichomonas hominis. In the last isolate, a third non-T. foetus species was identified as belonging to the genera Pseudotrichomonas or Monocercomonas: the first time that species of either of these genera have been reported in preputial samples. To confirm these data, small subunit rRNA gene sequences were obtained by PCR from the 12 trichomonad isolates. These new sequences were analysed in a broad phylogeny including 72 other parabasalid sequences. From our phylogenetic trees, we confirmed the taxonomic status of non-T. foetus organisms isolated from preputial samples (Tetratrichomonas, Pentatrichomonas, and Pseudotrichomonas) and suggested the existence of two Tetratrichomonas species, despite their morphological similarity. The route of transmission of the non-T. foetus organisms identified in the bovine preputial cavity is discussed and we confirm that the PCR assay using the previously described T. foetus-specific primers TFR3 and TFR4 could be a useful alternative method for the diagnosis of bovine trichomonosis.
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Affiliation(s)
- Fabienne Dufernez
- Inserm, U547, Institut Pasteur de Lille, 1 Rue du Professeur Calmette, BP 245, 59019 Lille Cedex, France
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Duboucher C, Barbier C, Beltramini A, Rona M, Ricome JL, Morel G, Capron M, Pierce RJ, Dei-Cas E, Viscogliosi E. Pulmonary Superinfection by Trichomonads in the Course of Acute Respiratory Distress Syndrome. Lung 2007; 185:295-301. [PMID: 17701244 DOI: 10.1007/s00408-007-9022-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2007] [Accepted: 07/14/2007] [Indexed: 11/24/2022]
Abstract
The finding of trichomonads in bronchoalveolar lavage fluid (BALF) samples from an acute respiratory distress syndrome (ARDS) patient, never previously reported, incited us to search for these parasites retrospectively in the BALF of patients with ARDS or related pathologies. Eighty-four consecutive BALF samples have been reviewed. Results were compared with data from clinical files of patients included in this study. Detection and identification of trichomonads were based on cytologic characteristics. Subsequently, immunocytochemistry and in situ hybridization were performed in the last case of the series. Our results were as follows: (1) Trichomonads were detected in 25/84 BALFs (20/77 patients). Among the patients testing positive, 17 suffered from ARDS, about 30% of the ARDS patients included in the study. (2) Trichomonads were detected more frequently at a late ARDS stage. (3) No correlation was found between trichomonad detection and other data. (4) Within the group of trichomonad-infected ARDS patients, density of infection correlated with higher mortality. The late detection of these microorganisms in the course of ARDS suggested that trichomonad development is a secondary event. As BALFs obtained early in the course of ARDS were also included in the study, trichomonad incidence could be underestimated. The significance of trichomonad lung colonization in ARDS and its potential pathogenic role are unclear. Nevertheless, the question of an active role of trichomonads in the extension of alveolar lesions or in the limitation of recovery is clearly raised.
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Affiliation(s)
- Christophe Duboucher
- Department of Pathology, Poissy/Saint-Germain Hospital, 20 Rue Armagis, 78100, Saint-Germain-en-Laye, France.
| | - Christophe Barbier
- Department of Intensive Care, Poissy/Saint-Germain Hospital, Saint-Germain-en-Laye, France
| | - Alexandra Beltramini
- Department of Intensive Care, Poissy/Saint-Germain Hospital, Saint-Germain-en-Laye, France
| | - Marianne Rona
- Department of Pathology, Poissy/Saint-Germain Hospital, 20 Rue Armagis, 78100, Saint-Germain-en-Laye, France
| | - Jean-Louis Ricome
- Department of Intensive Care, Poissy/Saint-Germain Hospital, Saint-Germain-en-Laye, France
| | - Gérard Morel
- The Unité Mixte CNRS-University Claude Bernard 5123, Villeurbanne, France
| | - Monique Capron
- The Inserm U547, Lille Pasteur Institute & Lille 2 University Hospital Centre (EA3609), Lille, France
| | - Raymond J Pierce
- The Inserm U547, Lille Pasteur Institute & Lille 2 University Hospital Centre (EA3609), Lille, France
| | - Eduardo Dei-Cas
- Department of Ecology of Parasitism, Lille Pasteur Institute & Lille 2 University Hospital Centre (EA3609), Lille, France
| | - Eric Viscogliosi
- The Inserm U547, Lille Pasteur Institute & Lille 2 University Hospital Centre (EA3609), Lille, France
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