1
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Sparvoli D, Delabre J, Penarete-Vargas DM, Kumar Mageswaran S, Tsypin LM, Heckendorn J, Theveny L, Maynadier M, Mendonça Cova M, Berry-Sterkers L, Guérin A, Dubremetz JF, Urbach S, Striepen B, Turkewitz AP, Chang YW, Lebrun M. An apical membrane complex for triggering rhoptry exocytosis and invasion in Toxoplasma. EMBO J 2022; 41:e111158. [PMID: 36245278 PMCID: PMC9670195 DOI: 10.15252/embj.2022111158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 03/14/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 01/13/2023] Open
Abstract
Apicomplexan parasites possess secretory organelles called rhoptries that undergo regulated exocytosis upon contact with the host. This process is essential for the parasitic lifestyle of these pathogens and relies on an exocytic machinery sharing structural features and molecular components with free-living ciliates. However, how the parasites coordinate exocytosis with host interaction is unknown. Here, we performed a Tetrahymena-based transcriptomic screen to uncover novel exocytic factors in Ciliata and conserved in Apicomplexa. We identified membrane-bound proteins, named CRMPs, forming part of a large complex essential for rhoptry secretion and invasion in Toxoplasma. Using cutting-edge imaging tools, including expansion microscopy and cryo-electron tomography, we show that, unlike previously described rhoptry exocytic factors, TgCRMPs are not required for the assembly of the rhoptry secretion machinery and only transiently associate with the exocytic site-prior to the invasion. CRMPs and their partners contain putative host cell-binding domains, and CRMPa shares similarities with GPCR proteins. Collectively our data imply that the CRMP complex acts as a host-molecular sensor to ensure that rhoptry exocytosis occurs when the parasite contacts the host cell.
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Affiliation(s)
- Daniela Sparvoli
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | - Jason Delabre
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | | | - Shrawan Kumar Mageswaran
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Lev M Tsypin
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL, USA
| | - Justine Heckendorn
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | - Liam Theveny
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Marjorie Maynadier
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | - Marta Mendonça Cova
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | - Laurence Berry-Sterkers
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | - Amandine Guérin
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jean-François Dubremetz
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
| | - Serge Urbach
- IGF, Université de Montpellier, CNRS, INSERM, Montpellier, France
| | - Boris Striepen
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Aaron P Turkewitz
- Department of Molecular Genetics and Cell Biology, University of Chicago, Chicago, IL, USA
| | - Yi-Wei Chang
- Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Maryse Lebrun
- Laboratory of Pathogen Host Interactions, UMR 5235 CNRS, Université de Montpellier, Montpellier, France
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2
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Suarez C, Lentini G, Ramaswamy R, Maynadier M, Aquilini E, Berry-Sterkers L, Cipriano M, Chen AL, Bradley P, Striepen B, Boulanger MJ, Lebrun M. A lipid-binding protein mediates rhoptry discharge and invasion in Plasmodium falciparum and Toxoplasma gondii parasites. Nat Commun 2019; 10:4041. [PMID: 31492901 PMCID: PMC6731292 DOI: 10.1038/s41467-019-11979-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [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: 06/14/2019] [Accepted: 08/07/2019] [Indexed: 11/09/2022] Open
Abstract
Members of the Apicomplexa phylum, including Plasmodium and Toxoplasma, have two types of secretory organelles (micronemes and rhoptries) whose sequential release is essential for invasion and the intracellular lifestyle of these eukaryotes. During invasion, rhoptries inject an array of invasion and virulence factors into the cytoplasm of the host cell, but the molecular mechanism mediating rhoptry exocytosis is unknown. Here we identify a set of parasite specific proteins, termed rhoptry apical surface proteins (RASP) that cap the extremity of the rhoptry. Depletion of RASP2 results in loss of rhoptry secretion and completely blocks parasite invasion and therefore parasite proliferation in both Toxoplasma and Plasmodium. Recombinant RASP2 binds charged lipids and likely contributes to assembling the machinery that docks/primes the rhoptry to the plasma membrane prior to fusion. This study provides important mechanistic insight into a parasite specific exocytic pathway, essential for the establishment of infection. Plasmodium and Toxoplasma parasites rely on rhoptry exocytosis for invasion, but the underlying mechanism is not known. Here, Suarez et al. characterize rhoptry apical surface proteins (RASP) that localize to the rhoptry cap and bind charged lipids, and are essential for rhoptry secretion and invasion.
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Affiliation(s)
- Catherine Suarez
- UMR 5235 CNRS, Université de Montpellier, 34095, Montpellier, France
| | - Gaëlle Lentini
- UMR 5235 CNRS, Université de Montpellier, 34095, Montpellier, France
| | - Raghavendran Ramaswamy
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, V8W 3P6, Canada
| | | | - Eleonora Aquilini
- UMR 5235 CNRS, Université de Montpellier, 34095, Montpellier, France
| | | | - Michael Cipriano
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Allan L Chen
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Peter Bradley
- Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Boris Striepen
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Martin J Boulanger
- Department of Biochemistry and Microbiology, University of Victoria, Victoria, British Columbia, V8W 3P6, Canada
| | - Maryse Lebrun
- UMR 5235 CNRS, Université de Montpellier, 34095, Montpellier, France.
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3
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Wein S, Ghezal S, Buré C, Maynadier M, Périgaud C, Vial HJ, Lefebvre-Tournier I, Wengelnik K, Cerdan R. Contribution of the precursors and interplay of the pathways in the phospholipid metabolism of the malaria parasite. J Lipid Res 2018; 59:1461-1471. [PMID: 29853527 PMCID: PMC6071779 DOI: 10.1194/jlr.m085589] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [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: 04/15/2018] [Revised: 05/24/2018] [Indexed: 12/17/2022] Open
Abstract
The malaria parasite, Plasmodium falciparum, develops and multiplies in the human erythrocyte. It needs to synthesize considerable amounts of phospholipids (PLs), principally phosphatidylcholine (PC), phosphatidylethanolamine (PE), and phosphatidylserine (PS). Several metabolic pathways coexist for their de novo biosynthesis, involving a dozen enzymes. Given the importance of these PLs for the survival of the parasite, we sought to determine their sources and to understand the connections and dependencies between the multiple pathways. We used three deuterated precursors (choline-d9, ethanolamine-d4, and serine-d3) to follow and quantify simultaneously their incorporations in the intermediate metabolites and the final PLs by LC/MS/MS. We show that PC is mainly derived from choline, itself provided by lysophosphatidylcholine contained in the serum. In the absence of choline, the parasite is able to use both other precursors, ethanolamine and serine. PE is almost equally synthesized from ethanolamine and serine, with both precursors being able to compensate for each other. Serine incorporated in PS is mainly derived from the degradation of host cell hemoglobin by the parasite. P. falciparum thus shows an unexpected adaptability of its PL synthesis pathways in response to different disturbances. These data provide new information by mapping the importance of the PL metabolic pathways of the malaria parasite and could be used to design future therapeutic approaches.
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Affiliation(s)
- Sharon Wein
- Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Salma Ghezal
- Institut des Biomolécules Max Mousseron, UMR 5247, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Corinne Buré
- Chimie et Biologie des Membranes et des Nanoobjets, UMR 5248, Centre de Génomique Fonctionnelle, Université Bordeaux 2, 33076 Bordeaux Cedex, France
| | - Marjorie Maynadier
- Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Christian Périgaud
- Institut des Biomolécules Max Mousseron, UMR 5247, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Henri J Vial
- Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Isabelle Lefebvre-Tournier
- Institut des Biomolécules Max Mousseron, UMR 5247, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Kai Wengelnik
- Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
| | - Rachel Cerdan
- Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, CNRS-Université de Montpellier, 34095 Montpellier Cedex 05, France
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4
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Belmonte-Reche E, Martínez-García M, Guédin A, Zuffo M, Arévalo-Ruiz M, Doria F, Campos-Salinas J, Maynadier M, López-Rubio JJ, Freccero M, Mergny JL, Pérez-Victoria JM, Morales JC. G-Quadruplex Identification in the Genome of Protozoan Parasites Points to Naphthalene Diimide Ligands as New Antiparasitic Agents. J Med Chem 2018; 61:1231-1240. [PMID: 29323491 PMCID: PMC6148440 DOI: 10.1021/acs.jmedchem.7b01672] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [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] [Indexed: 01/28/2023]
Abstract
![]()
G-quadruplexes
(G4) are DNA secondary structures that take part
in the regulation of gene expression. Putative G4 forming sequences
(PQS) have been reported in mammals, yeast, bacteria, and viruses.
Here, we present PQS searches on the genomes of T. brucei,
L. major, and P. falciparum. We found telomeric
sequences and new PQS motifs. Biophysical experiments showed that
EBR1, a 29 nucleotide long highly repeated PQS in T. brucei, forms a stable G4 structure. G4 ligands based on carbohydrate conjugated
naphthalene diimides (carb-NDIs) that bind G4’s including hTel
could bind EBR1 with selectivity versus dsDNA. These ligands showed
important antiparasitic activity. IC50 values were in the
nanomolar range against T. brucei with high selectivity
against MRC-5 human cells. Confocal microscopy confirmed these ligands
localize in the nucleus and kinetoplast of T. brucei suggesting they can reach their potential G4 targets. Cytotoxicity
and zebrafish toxicity studies revealed sugar conjugation reduces
intrinsic toxicity of NDIs.
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Affiliation(s)
- Efres Belmonte-Reche
- Department of Biochemistry and Molecular Pharmacology, Instituto de Parasitología y Biomedicina, CSIC , PTS Granada, Avda. del Conocimiento, 17, 18016 Armilla, Granada, Spain
| | - Marta Martínez-García
- Department of Biochemistry and Molecular Pharmacology, Instituto de Parasitología y Biomedicina, CSIC , PTS Granada, Avda. del Conocimiento, 17, 18016 Armilla, Granada, Spain
| | - Aurore Guédin
- ARNA Laboratory, Université de Bordeaux, Inserm U1212, CNRS UMR5320, Institut Européen de Chimie Biologie (IECB), 2 Rue Robert Escarpit, 33607 Pessac, France
| | - Michela Zuffo
- Department of Chemistry, University of Pavia , Via Taramelli 10, 27100 Pavia, Italy
| | - Matilde Arévalo-Ruiz
- Department of Biochemistry and Molecular Pharmacology, Instituto de Parasitología y Biomedicina, CSIC , PTS Granada, Avda. del Conocimiento, 17, 18016 Armilla, Granada, Spain
| | - Filippo Doria
- Department of Chemistry, University of Pavia , Via Taramelli 10, 27100 Pavia, Italy
| | - Jenny Campos-Salinas
- Department of Biochemistry and Molecular Pharmacology, Instituto de Parasitología y Biomedicina, CSIC , PTS Granada, Avda. del Conocimiento, 17, 18016 Armilla, Granada, Spain
| | - Marjorie Maynadier
- Dynamique des Interactions Membranaires Normales et Pathologiques, CNRS UMR 5235, Université de Montpellier, 34095 Montpellier, France
| | - José Juan López-Rubio
- CNRS, 5290, IRD 224, University of Montpellier (UMR "MiVEGEC"), INSERM, 34394 Montpellier, France
| | - Mauro Freccero
- Department of Chemistry, University of Pavia , Via Taramelli 10, 27100 Pavia, Italy
| | - Jean-Louis Mergny
- ARNA Laboratory, Université de Bordeaux, Inserm U1212, CNRS UMR5320, Institut Européen de Chimie Biologie (IECB), 2 Rue Robert Escarpit, 33607 Pessac, France.,Institute of Biophysics , AS CR, v.v.i. Kralovopolska 135, 612 65 Brno, Czech Republic
| | - José María Pérez-Victoria
- Department of Biochemistry and Molecular Pharmacology, Instituto de Parasitología y Biomedicina, CSIC , PTS Granada, Avda. del Conocimiento, 17, 18016 Armilla, Granada, Spain
| | - Juan Carlos Morales
- Department of Biochemistry and Molecular Pharmacology, Instituto de Parasitología y Biomedicina, CSIC , PTS Granada, Avda. del Conocimiento, 17, 18016 Armilla, Granada, Spain
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5
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Traoré MM, Zwick V, Simões-Pires CA, Nurisso A, Issa M, Cuendet M, Maynadier M, Wein S, Vial H, Jamet H, Wong YS. Hydroxyl Ketone-Based Histone Deacetylase Inhibitors To Gain Insight into Class I HDAC Selectivity versus That of HDAC6. ACS Omega 2017; 2:1550-1562. [PMID: 30023639 PMCID: PMC6044785 DOI: 10.1021/acsomega.6b00481] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Accepted: 03/29/2017] [Indexed: 06/07/2023]
Abstract
Little is known about the biological and structural features that govern the isoform selectivity for class I histone deacetylases (HDACs) over HDAC6. In addition to that for known inhibitors, like benzamides, psammaplin A, and cyclodepsipeptide-derived thiols, selectivity was also observed for naturally occurring cyclopeptide HDAC inhibitors with an aliphatic flexible linker and ketonelike zinc-binding group (ZBG). The present study reports that this isoform selectivity is mainly due to the linker and ZBG, as replacement of the cyclopeptide cap region by a simple aniline retained class I HDAC isoform selectivity toward HDAC6 in enzymatic assays. The best cyclopeptide-free analogues preserved efficacy against Plasmodium falciparum and cancer cell lines. Molecular modeling provided hypotheses to explain this selectivity and suggests different behaviors of the flexible linker on HDAC1 and HDAC6 pockets, which may influence, on the basis of the strength of the ZBG, its coordination with the zinc ion.
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Affiliation(s)
- Mohamed
D. M. Traoré
- Département
de Pharmacochimie Moléculaire, CNRS
UMR 5063, ICMG FR 2607, Univ. Grenoble Alpes, 470 rue de la chimie, 38041 Grenoble cedex 9, France
- Département
de Chimie Moléculaire, CNRS UMR 5250,
ICMG FR 2607, Univ. Grenoble Alpes, 301 rue de la chimie, 38041 Grenoble cedex 9, France
| | - Vincent Zwick
- School
of Pharmaceutical Sciences, University of
Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Claudia A. Simões-Pires
- School
of Pharmaceutical Sciences, University of
Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Alessandra Nurisso
- School
of Pharmaceutical Sciences, University of
Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
- Laboratoire
Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, CNRS, University of Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| | - Mark Issa
- School
of Pharmaceutical Sciences, University of
Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Muriel Cuendet
- School
of Pharmaceutical Sciences, University of
Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Marjorie Maynadier
- Département
de Biochimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7
| | - Sharon Wein
- Département
de Biochimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7
| | - Henri Vial
- Département
de Biochimie, Université de Montréal, Montréal, Québec, Canada H3C 3J7
| | - Helene Jamet
- Département
de Chimie Moléculaire, CNRS UMR 5250,
ICMG FR 2607, Univ. Grenoble Alpes, 301 rue de la chimie, 38041 Grenoble cedex 9, France
| | - Yung-Sing Wong
- Département
de Pharmacochimie Moléculaire, CNRS
UMR 5063, ICMG FR 2607, Univ. Grenoble Alpes, 470 rue de la chimie, 38041 Grenoble cedex 9, France
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6
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Francisco Hilário F, Traoré MDM, Zwick V, Berry L, Simões-Pires CA, Cuendet M, Fantozzi N, Pereira de Freitas R, Maynadier M, Wein S, Vial H, Wong YS. Synthesis of an Uncharged Tetra-cyclopeptide Acting as a Transmembrane Carrier: Enhanced Cellular and Nuclear Uptake. Org Lett 2017; 19:612-615. [DOI: 10.1021/acs.orglett.6b03776] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Flaviane Francisco Hilário
- Univ. Grenoble Alpes, Département de Pharmacochimie
Moléculaire, CNRS UMR 5063, ICMG FR 2607, 470 rue de la chimie, Grenoble 38041 Cedex 9, France
- Universidade Federal de Ouro Preto, Departamento de
Química, ICEB, Campus Universitário Morro do Cruzeiro, 35400-000 Ouro
Preto, Minas Gerais Brazil
- Universidade Federal de Minas Gerais, Depertamento de
Química, UFMG, Av Pres Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG 31270-901, Brazil
| | - Mohamed Dit Mady Traoré
- Univ. Grenoble Alpes, Département de Pharmacochimie
Moléculaire, CNRS UMR 5063, ICMG FR 2607, 470 rue de la chimie, Grenoble 38041 Cedex 9, France
- Univ. Grenoble Alpes, Département de Chimie
Moléculaire, CNRS UMR 5250, ICMG FR 2607, 301 rue de la chimie, Grenoble 38041 Cedex 9, France
| | - Vincent Zwick
- School
of Pharmaceutical Sciences, University of Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Laurence Berry
- Laboratoire
Dynamique des Interactions Membranaires Normales et Pathologiques,
UMR5235, CNRS, University of Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| | - Claudia A. Simões-Pires
- School
of Pharmaceutical Sciences, University of Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Muriel Cuendet
- School
of Pharmaceutical Sciences, University of Geneva, University of Lausanne, rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Nicolas Fantozzi
- Univ. Grenoble Alpes, Département de Pharmacochimie
Moléculaire, CNRS UMR 5063, ICMG FR 2607, 470 rue de la chimie, Grenoble 38041 Cedex 9, France
| | - Rossimiriam Pereira de Freitas
- Universidade Federal de Minas Gerais, Depertamento de
Química, UFMG, Av Pres Antônio Carlos, 6627, Pampulha, Belo Horizonte, MG 31270-901, Brazil
| | - Marjorie Maynadier
- Laboratoire
Dynamique des Interactions Membranaires Normales et Pathologiques,
UMR5235, CNRS, University of Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| | - Sharon Wein
- Laboratoire
Dynamique des Interactions Membranaires Normales et Pathologiques,
UMR5235, CNRS, University of Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| | - Henri Vial
- Laboratoire
Dynamique des Interactions Membranaires Normales et Pathologiques,
UMR5235, CNRS, University of Montpellier, Place Eugène Bataillon, 34095 Montpellier, France
| | - Yung-Sing Wong
- Univ. Grenoble Alpes, Département de Pharmacochimie
Moléculaire, CNRS UMR 5063, ICMG FR 2607, 470 rue de la chimie, Grenoble 38041 Cedex 9, France
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7
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Nyalosaso JL, Rascol E, Pisani C, Dorandeu C, Dumail X, Maynadier M, Gary-Bobo M, Kee Him JL, Bron P, Garcia M, Devoisselle JM, Prat O, Guari Y, Charnay C, Chopineau J. Synthesis, decoration, and cellular effects of magnetic mesoporous silica nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra09017f] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Synthesis of magnetic core@shell nanoparticles with different coatings and the study of their uptake by cells.
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8
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Bouffard E, Cheikh K, Gallud A, Silva A, Maynadier M, Basile I, Gary-Bobo M, Morere A, Garcia M. Why Anticancer Nanomedicine Needs Sugars? Curr Med Chem 2015; 22:3014-24. [DOI: 10.2174/0929867322666150805103104] [Citation(s) in RCA: 5] [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: 11/25/2015] [Revised: 07/23/2015] [Accepted: 08/04/2015] [Indexed: 11/22/2022]
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9
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Théron C, Gallud A, Giret S, Maynadier M, Grégoire D, Puche P, Jacquet E, Pop G, Sgarbura O, Bellet V, Hibner U, Zink JI, Garcia M, Wong Chi Man M, Carcel C, Gary-Bobo M. pH-operated hybrid silica nanoparticles with multiple H-bond stoppers for colon cancer therapy. RSC Adv 2015. [DOI: 10.1039/c5ra09891b] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Controlled delivery of a chemotherapeutic drug from pH-sensitive hybrid silica nanocarriers efficiently targets colon carcinoma cells. The drug, blocked by cyanuric acid as stopper, is autonomously released inside the cancer cells.
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Affiliation(s)
- C. Théron
- Institut Charles Gerhardt Montpellier
- UMR-5253, ENSCM, Université Montpellier, CNRS
- 34296 Montpellier
- France
- Department of Chemistry and Biochemistry
| | - A. Gallud
- Institut des Biomolécules Max Mousseron de Montpellier
- UMR 5247 CNRS-Université Montpellier-ENSCM
- Bâtiment (E), Faculté de Pharmacie
- 34093 Montpellier
- France
| | - S. Giret
- Institut Charles Gerhardt Montpellier
- UMR-5253, ENSCM, Université Montpellier, CNRS
- 34296 Montpellier
- France
| | | | - D. Grégoire
- Institut de Génétique Moléculaire de Montpellier
- UMR 5535
- CNRS
- Université Montpellier
- 34293 Montpellier
| | - P. Puche
- Clinique Beau-Soleil
- 34070 Montpellier
- France
| | - E. Jacquet
- Clinique Beau-Soleil
- 34070 Montpellier
- France
| | - G. Pop
- Clinique Beau-Soleil
- 34070 Montpellier
- France
| | - O. Sgarbura
- Institut régional du Cancer Montpellier, Chirurgie A2
- 34298 Montpellier
- France
| | - V. Bellet
- Institut des Biomolécules Max Mousseron de Montpellier
- UMR 5247 CNRS-Université Montpellier-ENSCM
- Bâtiment (E), Faculté de Pharmacie
- 34093 Montpellier
- France
| | - U. Hibner
- Institut de Génétique Moléculaire de Montpellier
- UMR 5535
- CNRS
- Université Montpellier
- 34293 Montpellier
| | - J. I. Zink
- Department of Chemistry and Biochemistry
- University of California Los Angeles
- Los Angeles
- USA
| | - M. Garcia
- Institut des Biomolécules Max Mousseron de Montpellier
- UMR 5247 CNRS-Université Montpellier-ENSCM
- Bâtiment (E), Faculté de Pharmacie
- 34093 Montpellier
- France
| | - M. Wong Chi Man
- Institut Charles Gerhardt Montpellier
- UMR-5253, ENSCM, Université Montpellier, CNRS
- 34296 Montpellier
- France
| | - C. Carcel
- Institut Charles Gerhardt Montpellier
- UMR-5253, ENSCM, Université Montpellier, CNRS
- 34296 Montpellier
- France
| | - M. Gary-Bobo
- Institut des Biomolécules Max Mousseron de Montpellier
- UMR 5247 CNRS-Université Montpellier-ENSCM
- Bâtiment (E), Faculté de Pharmacie
- 34093 Montpellier
- France
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10
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Winkler M, Maynadier M, Wein S, Lespinasse MA, Boumis G, Miele AE, Vial H, Wong YS. Uncovering new structural insights for antimalarial activity from cost-effective aculeatin-like derivatives. Org Biomol Chem 2015; 13:2064-77. [DOI: 10.1039/c4ob02459a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
An expedient synthesis of aculeatin-like analogues results in finding PfTrxR as putative cellular target and a promising new antimalarial chemotype.
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Affiliation(s)
- Matthias Winkler
- Département de Pharmacochimie Moléculaire
- Univ. Grenoble-Alpes
- CNRS UMR 5063
- CNRS ICMG FR 2607
- F-38041 Grenoble Cedex 9
| | - Marjorie Maynadier
- Laboratory Dynamique des Interactions Membranaires Normales et Pathologiques
- UMR5235
- CNRS
- University Montpellier 2
- 34095 Montpellier
| | - Sharon Wein
- Laboratory Dynamique des Interactions Membranaires Normales et Pathologiques
- UMR5235
- CNRS
- University Montpellier 2
- 34095 Montpellier
| | - Marie-Ange Lespinasse
- Département de Pharmacochimie Moléculaire
- Univ. Grenoble-Alpes
- CNRS UMR 5063
- CNRS ICMG FR 2607
- F-38041 Grenoble Cedex 9
| | - Giovanna Boumis
- Department of Biochemical Sciences
- “Sapienza” University of Rome
- 00185 Rome
- Italy
| | - Adriana E. Miele
- Department of Biochemical Sciences
- “Sapienza” University of Rome
- 00185 Rome
- Italy
| | - Henri Vial
- Laboratory Dynamique des Interactions Membranaires Normales et Pathologiques
- UMR5235
- CNRS
- University Montpellier 2
- 34095 Montpellier
| | - Yung-Sing Wong
- Département de Pharmacochimie Moléculaire
- Univ. Grenoble-Alpes
- CNRS UMR 5063
- CNRS ICMG FR 2607
- F-38041 Grenoble Cedex 9
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11
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Gallud A, Warther D, Maynadier M, Sefta M, Poyer F, Thomas CD, Rouxel C, Mongin O, Blanchard-Desce M, Morère A, Raehm L, Maillard P, Durand JO, Garcia M, Gary-Bobo M. Identification of MRC2 and CD209 receptors as targets for photodynamic therapy of retinoblastoma using mesoporous silica nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra14640b] [Citation(s) in RCA: 8] [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] [Indexed: 11/21/2022] Open
Abstract
An overexpression of MRC2 and CD209 mannose receptors was revealed in retinoblastoma and antibodies against these receptors were grafted to multifunctional nanoparticles for targeting of imaging and photodynamic therapy.
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12
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Degardin M, Wein S, Duckert JF, Maynadier M, Guy A, Durand T, Escale R, Vial H, Vo-Hoang Y. Development of the first oral bioprecursors of bis-alkylguanidine antimalarial drugs. ChemMedChem 2014; 9:300-4. [PMID: 24403182 DOI: 10.1002/cmdc.201300419] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Indexed: 11/07/2022]
Abstract
Plasmodium falciparum is responsible of the most severe form of malaria, and new targets and novel chemotherapeutic scaffolds are needed to fight emerging multidrug-resistant strains of this parasite. Bis-alkylguanidines have been designed to mimic choline, resulting in the inhibition of plasmodial de novo phosphatidylcholine biosynthesis. Despite potent in vitro antiplasmodial and in vivo antimalarial activities, a major drawback of these compounds for further clinical development is their low oral bioavailability. To solve this issue, various modulations were performed on bis-alkylguanidines. The introduction of N-disubstituents on the guanidino motif improved both in vitro and in vivo activities. On the other hand, in vivo pharmacological evaluation in a mouse model showed that the N-hydroxylated derivatives constitute the first oral bioprecursors in bis-alkylguanidine series. This study paves the way for bis-alkylguanidine-based oral antimalarial agents targeting plasmodial phospholipid metabolism.
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Affiliation(s)
- Mélissa Degardin
- UMR 5247 CNRS-UMI-UMII-ENSCM, Institut des Biomolecules Max Mousseron (IBMM), Faculté des Sciences Pharmaceutiques et Biologiques, Université de Montpellier I/II, 15 Avenue Charles Flahault, 34093 Montpellier (France)
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13
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Ruiz J, Mallet-Ladeira S, Maynadier M, Vial H, André-Barrès C. Design, synthesis and evaluation of new tricyclic endoperoxides as potential antiplasmodial agents. Org Biomol Chem 2014; 12:5212-21. [DOI: 10.1039/c4ob00787e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New tricyclic endoperoxides were obtained by a diastereoselective autoxidation; combined with 7-chloro-4-aminoquinoline, they display good antiplasmodial activities.
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Affiliation(s)
- Jérémy Ruiz
- Laboratoire de Synthèse et de Physicochimie de Molécules d'Intérêt Biologique
- UMR CNRS 5068
- Université Paul-Sabatier
- F-31062 Toulouse cedex 4, France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse
- FR2599
- Université Paul-Sabatier
- F-31062 Toulouse cedex 9, France
| | - Marjorie Maynadier
- Dynamique des Interactions Membranaires Normales et Pathologiques
- UMR CNRS 5235
- Université Montpellier 2
- F-34095 Montpellier cedex 5, France
| | - Henri Vial
- Dynamique des Interactions Membranaires Normales et Pathologiques
- UMR CNRS 5235
- Université Montpellier 2
- F-34095 Montpellier cedex 5, France
| | - Christiane André-Barrès
- Laboratoire de Synthèse et de Physicochimie de Molécules d'Intérêt Biologique
- UMR CNRS 5068
- Université Paul-Sabatier
- F-31062 Toulouse cedex 4, France
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14
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Gary-Bobo M, Vaillant O, Maynadier M, Basile I, Gallud A, El Cheikh K, Bouffard E, Morère A, Rébillard X, Puche P, Nirdé P, Garcia M. Targeting multiplicity: the key factor for anti-cancer nanoparticles. Curr Med Chem 2013; 20:1946-55. [PMID: 23409718 DOI: 10.2174/0929867311320150002] [Citation(s) in RCA: 10] [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: 11/29/2012] [Revised: 01/21/2013] [Accepted: 01/26/2013] [Indexed: 11/22/2022]
Abstract
In this mini-review, we focus on different strategies to bring nanotools specifically to cancer cells. We discuss about a better targeting of tumor, combining the characteristics of tumor environment, the increase in nanoparticles life time, the biomarkers overexpressed on cancer cells and different physical methods for non invasive therapies. Here we detail the necessity of a synergy between passive and active targeting for an actual specificity of cancer cells.
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Affiliation(s)
- M Gary-Bobo
- Institut des Biomolecules Max Mousseron, UMR 5247 CNRS-UM1-UM2, 15 Avenue Charles Flahault, BP 14491, 34093 Montpellier Cedex 05, France
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15
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Traoré M, Mietton F, Maubon D, Peuchmaur M, Francisco Hilário F, Pereira de Freitas R, Bougdour A, Curt A, Maynadier M, Vial H, Pelloux H, Hakimi MA, Wong YS. Flexible Synthesis and Evaluation of Diverse Anti-Apicomplexa Cyclic Peptides. J Org Chem 2013; 78:3655-75. [DOI: 10.1021/jo4001492] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Mariam Traoré
- Département de Pharmacochimie Moléculaire, Université Joseph Fourier-Grenoble 1, CNRS UMR 5063, CNRS ICMG FR 2607, bâtiment André
Rassat, 470 rue de la Chimie, F-38041 Grenoble Cedex 9, France
| | - Flore Mietton
- Laboratoire Adaptation et Pathogénie des Micro-organismes, Université Joseph Fourier-Grenoble 1, CNRS UMR 5163, BP 170, F-38042 Grenoble Cedex 9, France
| | - Danièle Maubon
- Laboratoire Adaptation et Pathogénie des Micro-organismes, Université Joseph Fourier-Grenoble 1, CNRS UMR 5163, BP 170, F-38042 Grenoble Cedex 9, France
- Laboratoire de Parasitologie-Mycologie, Département des Agents Infectieux, Centre Hospitalier Universitaire, BP
217, 38043 Grenoble cedex 9, France
| | - Marine Peuchmaur
- Département de Pharmacochimie Moléculaire, Université Joseph Fourier-Grenoble 1, CNRS UMR 5063, CNRS ICMG FR 2607, bâtiment André
Rassat, 470 rue de la Chimie, F-38041 Grenoble Cedex 9, France
| | - Flaviane Francisco Hilário
- Département de Pharmacochimie Moléculaire, Université Joseph Fourier-Grenoble 1, CNRS UMR 5063, CNRS ICMG FR 2607, bâtiment André
Rassat, 470 rue de la Chimie, F-38041 Grenoble Cedex 9, France
- Departamento de Quı́mica, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais,
Brasil
- CAPES Foundation, Ministry of Education of Brazil, Brasilia DF 70040-020, Brazil
| | | | - Alexandre Bougdour
- Laboratoire Adaptation et Pathogénie des Micro-organismes, Université Joseph Fourier-Grenoble 1, CNRS UMR 5163, BP 170, F-38042 Grenoble Cedex 9, France
| | - Aurélie Curt
- Laboratoire Adaptation et Pathogénie des Micro-organismes, Université Joseph Fourier-Grenoble 1, CNRS UMR 5163, BP 170, F-38042 Grenoble Cedex 9, France
- Laboratoire de Parasitologie-Mycologie, Département des Agents Infectieux, Centre Hospitalier Universitaire, BP
217, 38043 Grenoble cedex 9, France
| | - Marjorie Maynadier
- Dynamique
des Interactions Membranaires Normales et Pathologiques, Université de Montpellier 2,
CNRS UMR 5235, CP 107, Place E. Bataillon, F-34095 Montpellier Cedex
5, France
| | - Henri Vial
- Dynamique
des Interactions Membranaires Normales et Pathologiques, Université de Montpellier 2,
CNRS UMR 5235, CP 107, Place E. Bataillon, F-34095 Montpellier Cedex
5, France
| | - Hervé Pelloux
- Laboratoire Adaptation et Pathogénie des Micro-organismes, Université Joseph Fourier-Grenoble 1, CNRS UMR 5163, BP 170, F-38042 Grenoble Cedex 9, France
- Laboratoire de Parasitologie-Mycologie, Département des Agents Infectieux, Centre Hospitalier Universitaire, BP
217, 38043 Grenoble cedex 9, France
| | - Mohamed-Ali Hakimi
- Laboratoire Adaptation et Pathogénie des Micro-organismes, Université Joseph Fourier-Grenoble 1, CNRS UMR 5163, BP 170, F-38042 Grenoble Cedex 9, France
| | - Yung-Sing Wong
- Département de Pharmacochimie Moléculaire, Université Joseph Fourier-Grenoble 1, CNRS UMR 5063, CNRS ICMG FR 2607, bâtiment André
Rassat, 470 rue de la Chimie, F-38041 Grenoble Cedex 9, France
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16
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Wein S, Maynadier M, Bordat Y, Perez J, Maheshwari S, Bette-Bobillo P, Tran Van Ba C, Penarete-Vargas D, Fraisse L, Cerdan R, Vial H. Transport and pharmacodynamics of albitiazolium, an antimalarial drug candidate. Br J Pharmacol 2012; 166:2263-76. [PMID: 22471905 PMCID: PMC3437492 DOI: 10.1111/j.1476-5381.2012.01966.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [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] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND AND PURPOSE Choline analogues, a new type of antimalarials, exert potent in vitro and in vivo antimalarial activity. This has given rise to albitiazolium, which is currently in phase II clinical trials to cure severe malaria. Here we dissected its mechanism of action step by step from choline entry into the infected erythrocyte to its effect on phosphatidylcholine (PC) biosynthesis. EXPERIMENTAL APPROACH We biochemically unravelled the transport and enzymatic steps that mediate de novo synthesis of PC and elucidated how albitiazolium enters the intracellular parasites and affects the PC biosynthesis. KEY RESULTS Choline entry into Plasmodium falciparum-infected erythrocytes is achieved both by the remnant erythrocyte choline carrier and by parasite-induced new permeability pathways (NPP), while parasite entry involves a poly-specific cation transporter. Albitiazolium specifically prevented choline incorporation into its end-product PC, and its antimalarial activity was strongly antagonized by choline. Albitiazolium entered the infected erythrocyte mainly via a furosemide-sensitive NPP and was transported into the parasite by a poly-specific cation carrier. Albitiazolium competitively inhibited choline entry via the parasite-derived cation transporter and also, at a much higher concentration, affected each of the three enzymes conducting de novo synthesis of PC. CONCLUSIONS AND IMPLICATIONS Inhibition of choline entry into the parasite appears to be the primary mechanism by which albitiazolium exerts its potent antimalarial effect. However, the pharmacological response to albitiazolium involves molecular interactions with different steps of the de novo PC biosynthesis pathway, which would help to delay the development of resistance to this drug.
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Affiliation(s)
- S Wein
- Dynamique des Interactions Membranaires Normales et Pathologiques, CNRS UMR 5235, Université Montpellier II, Montpellier, France
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17
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Caldarelli SA, Hamel M, Duckert JF, Ouattara M, Calas M, Maynadier M, Wein S, Périgaud C, Pellet A, Vial HJ, Peyrottes S. Disulfide Prodrugs of Albitiazolium (T3/SAR97276): Synthesis and Biological Activities. J Med Chem 2012; 55:4619-28. [DOI: 10.1021/jm3000328] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sergio A. Caldarelli
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
| | - Matthieu Hamel
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
| | - Jean-Frédéric Duckert
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
| | - Mahama Ouattara
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
| | - Michèle Calas
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
| | - Marjorie Maynadier
- Dynamique des Interactions
Membranaires
Normales et Pathologiques (DIMNP), UMR 5235 CNRS-UM2, Université Montpellier 2, cc 107, place E. Bataillon,
34095 Montpellier, France
| | - Sharon Wein
- Dynamique des Interactions
Membranaires
Normales et Pathologiques (DIMNP), UMR 5235 CNRS-UM2, Université Montpellier 2, cc 107, place E. Bataillon,
34095 Montpellier, France
| | - Christian Périgaud
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
| | - Alain Pellet
- Sanofi Research & Development, 195 route d’Espagne, BP 13669, 31036 Toulouse, France
| | - Henri J. Vial
- Dynamique des Interactions
Membranaires
Normales et Pathologiques (DIMNP), UMR 5235 CNRS-UM2, Université Montpellier 2, cc 107, place E. Bataillon,
34095 Montpellier, France
| | - Suzanne Peyrottes
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-UM1&2, Université Montpellier 2, cc 1705, place E. Bataillon, 34095 Montpellier, France
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18
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Raehm L, Durand JO, Brevet D, Gary-Bobo M, Garcia M, Morere A, Mongin O, Blanchard-Desce M, Maynadier M, Basile I, Rouxel C, Mir Y. Functionalized mesoporous silica nanoparticles for two-photon photodynamic therapy. Photodiagnosis Photodyn Ther 2011. [DOI: 10.1016/j.pdpdt.2011.03.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Traoré M, Maynadier M, Souard F, Choisnard L, Vial H, Wong YS. Forming spirocyclohexadienone-oxocarbenium cation species in the biomimetic synthesis of amomols. J Org Chem 2011; 76:1409-17. [PMID: 21250723 DOI: 10.1021/jo102414s] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The oxidation of appropriate 2-(4-hydroxyphenyl)ethyl ketones gives direct access to amomols by means of the formation of a transient spirocyclohexadienone-oxocarbenium ion that is intermolecularly intercepted by an alcohol. Furthermore, homochiral amomols and other new analogues were synthesized for the first time and were biologically evaluated on Plasmodium falciparum.
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Affiliation(s)
- Mariam Traoré
- Département de Pharmacochimie Moléculaire, Université Joseph Fourier-Grenoble 1, CNRS UMR 5063, CNRS ICMG FR 2607, bâtiment André Rassat, 470 rue de la Chimie, F-38041 Grenoble Cedex 9, France
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20
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Caldarelli SA, Boisbrun M, Alarcon K, Hamzé A, Ouattara M, Salom-Roig X, Maynadier M, Wein S, Peyrottes S, Pellet A, Calas M, Vial H. Exploration of potential prodrug approach of the bis-thiazolium salts T3 and T4 for orally delivered antimalarials. Bioorg Med Chem Lett 2010; 20:3953-6. [DOI: 10.1016/j.bmcl.2010.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 04/30/2010] [Accepted: 05/01/2010] [Indexed: 10/19/2022]
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21
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Déchamps S, Maynadier M, Wein S, Gannoun-Zaki L, Maréchal E, Vial HJ. Rodent and nonrodent malaria parasites differ in their phospholipid metabolic pathways. J Lipid Res 2010; 51:81-96. [PMID: 19561325 DOI: 10.1194/jlr.m900166-jlr200] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Malaria, a disease affecting humans and other animals, is caused by a protist of the genus Plasmodium. At the intraerythrocytic stage, the parasite synthesizes a high amount of phospholipids through a bewildering number of pathways. In the human Plasmodium falciparum species, a plant-like pathway that relies on serine decarboxylase and phosphoethanolamine N-methyltransferase activities diverts host serine to provide additional phosphatidylcholine and phosphatidylethanolamine to the parasite. This feature of parasitic dependence toward its host was investigated in other Plasmodium species. In silico analyses led to the identification of phosphoethanolamine N-methyltransferase gene orthologs in primate and bird parasite genomes. However, the gene was not detected in the rodent P. berghei, P. yoelii, and P. chabaudi species. Biochemical experiments with labeled choline, ethanolamine, and serine showed marked differences in biosynthetic pathways when comparing rodent P. berghei and P. vinckei, and human P. falciparum species. Notably, in both rodent parasites, ethanolamine and serine were not significantly incorporated into phosphatidylcholine, indicating the absence of phosphoethanolamine N-methyltransferase activity. To our knowledge, this is the first study to highlight a crucial difference in phospholipid metabolism between Plasmodium species. The findings should facilitate efforts to develop more rational approaches to identify and evaluate new targets for antimalarial therapy.
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Affiliation(s)
- Sandrine Déchamps
- Dynamique des Interactions Membranaires Normales et Pathologiques, UMR 5235, Centre National de la Recherche Scientifique (CNRS) - Universite Montpellier II, cc 107, Place Eugene Bataillon, 34095 Montpellier Cedex 05, France
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22
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Nirdé P, Derocq D, Maynadier M, Chambon M, Basile I, Gary-Bobo M, Garcia M. Heat shock cognate 70 protein secretion as a new growth arrest signal for cancer cells. Oncogene 2009; 29:117-27. [PMID: 19802014 DOI: 10.1038/onc.2009.311] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Earlier studies indicated that density-arrested cancer cells released an unidentified growth inhibitor whose secretion was prevented by overexpression of the lysosomal protease cathepsin D (cath D). In this study, this growth inhibitor was purified by affinity chromatography and identified as the heat shock cognate 70 protein (hsc70) based on its peptide microsequencing and specific antibody recognition. Among intracellular proteins, including other heat shock proteins, only constitutive hsc70 was secreted in response to the high-cell density. Moreover, hsc70 secretion from cancer cells was generated by serum deprivation, whereas its cellular concentration did not change. Prevention of Hsc70 secretion by cath D overexpression was associated with the formation of multilayer cell cultures, thus indicating a loss of contact inhibition. In addition, we showed that supplementing the culture medium with purified hsc70 inhibited cell proliferation in the nanomolar range. Conversely, removal of this extracellular hsc70 from the medium by either retention on ADP-agarose or competition at the Hsc70 binding site restored cell proliferation. Hsc70 appears active in human breast cancer cells and hypersecreted by direct cath D inhibition. These results suggest a new role of this secreted hsc70 chaperone in cell proliferation that might account for the higher tumor growth of cancer cells overexpressing cath D.
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Affiliation(s)
- P Nirdé
- IRCM, institut de Recherche en Cancérologie de Montpellier, Montpellier, France
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23
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Bernat V, Saffon N, Maynadier M, Vial H, André-Barrès C. α-Spiro endoperoxides: synthesis and evaluation of their antimalarial activities. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.07.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Maether MP, Desoubzdanne D, Izquierdo A, Guieu V, Maturano M, André-Barrès C, Valentin A, Jullian V, Chevalley S, Maynadier M, Vial H, Payrastre C. Synthesis and Antimalarial Properties of Streptocyanine Dyes. ChemMedChem 2009; 4:1327-32. [DOI: 10.1002/cmdc.200900051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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Hamzé A, Rubi E, Arnal P, Boisbrun M, Carcel C, Salom-Roig X, Maynadier M, Wein S, Vial H, Calas M. Mono- and bis-thiazolium salts have potent antimalarial activity. J Med Chem 2005; 48:3639-43. [PMID: 15887971 DOI: 10.1021/jm0492608] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [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: 11/28/2022]
Abstract
Three new series comprising 24 novel cationic choline analogues and consisting of mono- or bis (N or C-5-duplicated) thiazolium salts have been synthesized. Bis-thiazolium salts showed potent antimalarial activity (much superior to monothiazoliums). Among them, bis-thiazolium salts 12 and 13 exhibited IC(50) values of 2.25 nM and 0.65 nM, respectively, against P. falciparum in vitro. These compounds also demonstrated good in vivo activity (ED(50) </= 0.22 mg/kg), and low toxicity in mice infected by Plasmodium vinckei.
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Affiliation(s)
- Abdallah Hamzé
- Laboratoire des Amino acides Peptides et Protéines (LAPP) CNRS-UMR 5810, CP 19, Université Montpellier I, Place E. Bataillon, 34095 Montpellier Cedex 5, France
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