1
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Issop L, Duma L, Finet S, Lequin O, Lacapère JJ. Among the recombinant TSPOs, the BcTSPO. Biochimie 2024:S0300-9084(24)00029-4. [PMID: 38280504 DOI: 10.1016/j.biochi.2024.01.011] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/29/2024]
Abstract
Overexpression of recombinant Bacillus cereus TSPO (BcTSPO) in E. coli bacteria leads to its recovery with a bound hemin both in bacterial membrane (MB) and inclusion bodies (IB). Unlike mouse TSPO, BcTSPO purified in SDS detergent from IB is well structured and can bind various ligands such as high-affinity PK 11195, protoporphyrin IX (PPIX) and δ-aminolevulinic acid (ALA). For each of the three ligands, 1H-15N HSQC titration NMR experiments suggest that different amino acids of BcTSPO binding cavity are involved in the interaction. PPIX, an intermediate of heme biosynthesis, binds to the cavity of BcTSPO and its fluorescence can be significantly reduced in the presence of light and oxygen. The light irradiation leads to two products that have been isolated and characterized as photoporphyrins. They result from the addition of singlet oxygen to the two vinyl groups hence leading to the formation of hydroxyaldehydes. The involvement of water molecules, recently observed along with the binding of heme in Rhodobacter sphaeroides (RsTSPO) is highly probable. Altogether, these results raise the question of the role of TSPO in heme biosynthesis regulation as a possible scavenger of reactive intermediates.
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Affiliation(s)
- Leeyah Issop
- Inserm U955-IMRB, UPEC, Ecole Nationale Vétérinaire d'Alfort, F-94010, Créteil, France
| | - Luminita Duma
- University of Reims Champagne-Ardenne, CNRS, ICMR UMR 7312, 51687, Reims, France
| | - Stephanie Finet
- IMPMC, UMR 7590 CNRS, Sorbonne Université, MNHN, IRD, 75005, Paris, France
| | - Olivier Lequin
- Sorbonne Université, Ecole normale supérieure, PSL University, CNRS (UMR 7203), Laboratoire des Biomolécules, LBM, 75005, Paris, France
| | - Jean-Jacques Lacapère
- Sorbonne Université, Ecole normale supérieure, PSL University, CNRS (UMR 7203), Laboratoire des Biomolécules, LBM, 75005, Paris, France.
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2
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Nuti F, Larregola M, Staśkiewicz A, Retzl B, Tomašević N, Macchia L, Street ME, Jewgiński M, Lequin O, Latajka R, Rovero P, Gruber CW, Chorev M, Papini AM. Design, synthesis, conformational analysis, and biological activity of Cα 1-to-Cα 6 1,4- and 4,1-disubstituted 1 H-[1,2,3]triazol-1-yl-bridged oxytocin analogues. J Enzyme Inhib Med Chem 2023; 38:2254019. [PMID: 37735942 PMCID: PMC10519257 DOI: 10.1080/14756366.2023.2254019] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 08/26/2023] [Indexed: 09/23/2023] Open
Abstract
Oxytocin (OT) is a neurohypophyseal peptide hormone containing a disulphide-bridged pseudocyclic conformation. The biomedical use of OT peptides is limited amongst others by disadvantageous pharmacokinetic parameters. To increase the stability of OT by replacing the disulphide bridge with the stable and more rigid [1,2,3]triazol-1-yl moiety, we employed the Cu2+-catalysed side chain-to-side chain azide-alkyne 1,3-cycloaddition. Here we report the design, synthesis, conformational analysis, and in vitro pharmacological activity of a homologous series of Cα1-to-Cα6 side chain-to-side chain [1,2,3]triazol-1-yl-containing OT analogues differing in the length of the bridge, location, and orientation of the linking moiety. Exploiting this macrocyclisation approach, it was possible to generate a systematic series of compounds providing interesting insight into the structure-conformation-function relationship of OT. Most analogues were able to adopt similar conformation to endogenous OT in water, namely, a type I β-turn. This approach may in the future generate stabilised pharmacological peptide tools to advance understanding of OT physiology.
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Affiliation(s)
- Francesca Nuti
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Maud Larregola
- CNRS, BioCIS, CY Cergy Paris Université, Cergy Pontoise and Paris Saclay Université, Orsay, France
| | - Agnieszka Staśkiewicz
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Florence, Italy
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Bernhard Retzl
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Nataša Tomašević
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Lorenzo Macchia
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Maria E. Street
- Dipartimento di Medicina e Chirurgia, Università di Parma e Clinica Pediatrica, AOU di Parma, Parma, Italy
| | - Michał Jewgiński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Olivier Lequin
- Laboratoire des Biomolécules, Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Paris, France
| | - Rafal Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Paolo Rovero
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of NeuroFarBa, University of Florence, Sesto Fiorentino, Florence, Italy
| | - Christian W. Gruber
- Institute of Pharmacology, Center for Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Michael Chorev
- Laboratory for Translational Research, Department of Medicine, Division of Hematology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Anna Maria Papini
- Interdepartmental Research Unit of Peptide and Protein Chemistry and Biology, Department of Chemistry “Ugo Schiff”, University of Florence, Sesto Fiorentino, Florence, Italy
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3
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Cardon S, Hervis YP, Bolbach G, Lopin-Bon C, Jacquinet JC, Illien F, Walrant A, Ravault D, He B, Molina L, Burlina F, Lequin O, Joliot A, Carlier L, Sagan S. A cationic motif upstream Engrailed2 homeodomain controls cell internalization through selective interaction with heparan sulfates. Nat Commun 2023; 14:1998. [PMID: 37032404 PMCID: PMC10083169 DOI: 10.1038/s41467-023-37757-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 03/29/2023] [Indexed: 04/11/2023] Open
Abstract
Engrailed2 (En2) is a transcription factor that transfers from cell to cell through unconventional pathways. The poorly understood internalization mechanism of this cationic protein is proposed to require an initial interaction with cell-surface glycosaminoglycans (GAGs). To decipher the role of GAGs in En2 internalization, we have quantified the entry of its homeodomain region in model cells that differ in their content in cell-surface GAGs. The binding specificity to GAGs and the influence of this interaction on the structure and dynamics of En2 was also investigated at the amino acid level. Our results show that a high-affinity GAG-binding sequence (RKPKKKNPNKEDKRPR), upstream of the homeodomain, controls En2 internalization through selective interactions with highly-sulfated heparan sulfate GAGs. Our data underline the functional importance of the intrinsically disordered basic region upstream of En2 internalization domain, and demonstrate the critical role of GAGs as an entry gate, finely tuning homeoprotein capacity to internalize into cells.
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Affiliation(s)
- Sébastien Cardon
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Yadira P Hervis
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Gérard Bolbach
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
- Sorbonne Université, Mass Spectrometry Sciences Sorbonne University, MS3U platform, 75005, Paris, France
| | | | | | - Françoise Illien
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Astrid Walrant
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Delphine Ravault
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Bingwei He
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Laura Molina
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Fabienne Burlina
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Olivier Lequin
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Alain Joliot
- INSERM U932, Institut Curie Centre de Recherche, PSL Research University, Paris, France
| | - Ludovic Carlier
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France.
| | - Sandrine Sagan
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France.
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4
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Carlier L, Samson D, Khemtemourian L, Joliot A, Fuchs PFJ, Lequin O. Anionic lipids induce a fold-unfold transition in the membrane-translocating Engrailed homeodomain. Biochim Biophys Acta Biomembr 2022; 1864:184030. [PMID: 35988722 DOI: 10.1016/j.bbamem.2022.184030] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 07/17/2022] [Accepted: 08/08/2022] [Indexed: 06/15/2023]
Abstract
Homeoprotein transcription factors have the property of interacting with membranes through their DNA-binding homeodomain, which is involved in unconventional internalization and secretion. Both processes depend on membrane-translocating events but their detailed molecular mechanisms are still poorly understood. We have previously characterized the conformational properties of Engrailed 2 homeodomain (EnHD) in aqueous solution and in micelles as membrane-mimetic environments. In the present study, we used small isotropic lipid bicelles as a more relevant membrane-mimetic model to characterize the membrane-bound state of EnHD. We show that lipid bicelles, in contrast to micelles, adequately reproduce the requirement of anionic lipids in the membrane binding and conformational transition of EnHD. The fold-unfold transition of EnHD induced by anionic lipids was characterized by NMR using 1H, 13C, 15N chemical shifts, nuclear Overhauser effects, residual dipolar couplings, intramolecular and intermolecular paramagnetic relaxation enhancements induced by site-directed spin-label or paramagnetic lipid probe, respectively. A global unpacking of EnHD helices is observed leading to a loss of the native fold. However, near-native propensities of EnHD backbone conformation are maintained in membrane environment, including not only the three helices but also the turn connecting helices H2 and H3. NMR and coarse-grained molecular dynamics simulations reveal that the EnHD adopts a shallow insertion in the membrane, with the three helices oriented parallel to the membrane. EnHD explores extended conformations and closed U-shaped conformations, which are stabilized by anionic lipid recruitment.
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Affiliation(s)
- Ludovic Carlier
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, F-75005 Paris, France.
| | - Damien Samson
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, F-75005 Paris, France
| | - Lucie Khemtemourian
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, F-75005 Paris, France
| | - Alain Joliot
- INSERM U932, Institut Curie Centre de Recherche, PSL University, France
| | - Patrick F J Fuchs
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, F-75005 Paris, France; Université Paris Cité, UFR Sciences du Vivant, F-75013 Paris, France
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, F-75005 Paris, France.
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5
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Shi C, Correia I, Tonali N, Ongeri S, Lequin O. Two consecutive aza-amino acids in peptides promote stable β-turn formation in water. Org Biomol Chem 2022; 20:8430-8437. [PMID: 36040477 DOI: 10.1039/d2ob01225a] [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] [Indexed: 11/21/2022]
Abstract
Studies on the synthetic methodologies and the structural propensity of peptides containing consecutive aza-amino acids are still in their infancy. Here, details of the synthesis and conformational analysis of tripeptides containing two consecutive aza-amino acids are provided. The demonstration that the type I β-turn folding is induced, even in aqueous media, by the introduction of one or two lateral chains on the diaza-peptide unit is of particular importance for the design of peptidomimetics of biological interest.
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Affiliation(s)
- Chenghui Shi
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
| | - Isabelle Correia
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France.
| | - Nicolo Tonali
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
| | - Sandrine Ongeri
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France.
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6
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Méjean A, Lequin O, Ploux O. Identification of 7-Deoxy-desulfo-argino-cylindrospermopsin, the Missing Piece in Cylindrospermopsin Biosynthesis. J Am Chem Soc 2022; 144:14627-14637. [PMID: 35916199 DOI: 10.1021/jacs.2c03932] [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] [Indexed: 11/28/2022]
Abstract
Cylindrospermopsin, a major cyanotoxin, is produced by freshwater cyanobacteria. Its biosynthesis starts from arginine and glycine and involves five polyketide synthases and several tailoring enzymes. We report the identification of 7-deoxy-desulfo-argino-cylindrospermopsin in several cylindrospermopsin-producing cyanobacteria using mass spectrometry experiments. We have purified this new metabolite and established its structure by 1D and 2D NMR spectroscopy using scalar-based 1H-1H, 1H-13C, and 1H-15N as well as 2D 1H-1H ROESY correlation experiments. Using labeled arginines in isotopic incorporation experiments, we have shown that arginine is fully incorporated into 7-deoxy-desulfo-argino-cylindrospermopsin and that the uracil ring of cylindrospermopsin originates from the guanidino moiety of arginine, thus solving a long-standing puzzling question. CyrG and CyrH from the cylindrospermopsin-producing Oscillatoria sp. PCC 6506 were overproduced in Escherichia coli and purified to homogeneity. We showed that CyrG is a zinc-dependent hydrolase, homologous to adenosine deaminases, that transforms 7-deoxy-desulfo-argino-cylindrospermopsin into 7-deoxy-desulfo-cylindrospermopsin and ornithine, with the following kinetic parameters: KM = 0.21 ± 0.05 μM and kcat = 0.19 ± 0.02 min-1. CyrG contained 0.55 mol of zinc per mol of monomer but could be activated by FeII or CoII. CyrH contained almost no metal and showed no such activity even in the presence of excess metal. Using structure-based alignments and secondary structure predictions, we propose that the fifth and last polyketide synthase CyrF in cylindrospermopsin biosynthesis contains an unprecedented C-terminal domain homologous to N-acetyltransferases. We suggest that this domain catalyzes the condensation of the CyrF product with arginine to give 7-deoxy-desulfo-argino-cylindrospermopsin. This would be an unprecedented termination step for a polyketide synthase.
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Affiliation(s)
- Annick Méjean
- LIED, UMR 8236 CNRS, Université Paris Cité, 75205 Paris Cedex 13, France
| | - Olivier Lequin
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Olivier Ploux
- LIED, UMR 8236 CNRS, Université Paris Cité, 75205 Paris Cedex 13, France.,Chimie ParisTech, PSL, 75005 Paris, France
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7
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Bechtella L, Chalouhi E, Milán Rodríguez P, Cosset M, Ravault D, Illien F, Sagan S, Carlier L, Lequin O, Fuchs PFJ, Sachon E, Walrant A. Structural Bases for the Involvement of Phosphatidylinositol-4,5-bisphosphate in the Internalization of the Cell-Penetrating Peptide Penetratin. ACS Chem Biol 2022; 17:1427-1439. [PMID: 35608167 DOI: 10.1021/acschembio.1c00974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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
Cell-penetrating peptides cross cell membranes through various parallel internalization pathways. Herein, we analyze the role of the negatively charged lipid phosphatidylinositol-4,5-bisphosphate (PI(4,5)P2) in the internalization of Penetratin. Contributions of both inner leaflet and outer leaflet pools of PI(4,5)P2 were revealed by quantifying the internalization of Penetratin in cells treated with PI(4,5)P2 binders. Studies on model systems showed that Penetratin has a strong affinity for PI(4,5)P2 and interacts selectively with this lipid, even in the presence of other negatively charged lipids, as demonstrated by affinity photo-crosslinking experiments. Differential scanning calorimetry experiments showed that Penetratin induces lateral segregation in PI(4,5)P2-containing liposomes, which was confirmed by coarse-grained molecular dynamics simulations. NMR experiments indicated that Penetratin adopts a stabilized helical conformation in the presence of PI(4,5)P2-containing membranes, with an orientation parallel to the bilayer plane, which was also confirmed by all-atom simulations. NMR and photo-crosslinking experiments also suggest a rather shallow insertion of the peptide in the membrane. Put together, our findings suggest that PI(4,5)P2 is a privileged interaction partner for Penetratin and that it plays an important role in Penetratin internalization.
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Affiliation(s)
- Leïla Bechtella
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Edward Chalouhi
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Paula Milán Rodríguez
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Marine Cosset
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Delphine Ravault
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Françoise Illien
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Sandrine Sagan
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Ludovic Carlier
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Olivier Lequin
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
| | - Patrick F. J. Fuchs
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
- Université de Paris, UFR Sciences du Vivant, 75013 Paris, France
| | - Emmanuelle Sachon
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
- Sorbonne Université, Mass Spectrometry Sciences Sorbonne Université, MS3U platform, UFR 926, UFR 927, Paris 75005, France
| | - Astrid Walrant
- Laboratoire des Biomolécules, LBM, Sorbonne Université, École normale supérieure, PSL University, CNRS, 75005 Paris, France
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8
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Cahuzac H, Sallustrau A, Malgorn C, Beau F, Barbe P, Babin V, Dubois S, Palazzolo A, Thai R, Correia I, Lee KB, Garcia-Argote S, Lequin O, Keck M, Nozach H, Feuillastre S, Ge X, Pieters G, Audisio D, Devel L. Monitoring In Vivo Performances of Protein-Drug Conjugates Using Site-Selective Dual Radiolabeling and Ex Vivo Digital Imaging. J Med Chem 2022; 65:6953-6968. [PMID: 35500280 PMCID: PMC9833330 DOI: 10.1021/acs.jmedchem.2c00401] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In preclinical models, the development and optimization of protein-drug conjugates require accurate determination of the plasma and tissue profiles of both the protein and its conjugated drug. To this aim, we developed a bioanalytical strategy based on dual radiolabeling and ex vivo digital imaging. By combining enzymatic and chemical reactions, we obtained homogeneous dual-labeled anti-MMP-14 Fabs (antigen-binding fragments) conjugated to monomethyl auristatin E where the protein scaffold was labeled with carbon-14 (14C) and the conjugated drug with tritium (3H). These antibody-drug conjugates with either a noncleavable or a cleavable linker were then evaluated in vivo. By combining liquid scintillation counting and ex vivo dual-isotope radio-imaging, it was possible not only to monitor both components simultaneously during their circulation phase but also to quantify accurately their amount accumulated within the different organs.
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Affiliation(s)
- Héloïse Cahuzac
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Antoine Sallustrau
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Carole Malgorn
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Fabrice Beau
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Peggy Barbe
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Victor Babin
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Steven Dubois
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Alberto Palazzolo
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Robert Thai
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Isabelle Correia
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Ki Baek Lee
- Institute of Molecular Medicine, University of Texas Health Science Center at Houston 1825 Pressler St, Houston TX 77030
| | - Sébastien Garcia-Argote
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, 75005 Paris, France
| | - Mathilde Keck
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Hervé Nozach
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France)
| | - Sophie Feuillastre
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Xin Ge
- Institute of Molecular Medicine, University of Texas Health Science Center at Houston 1825 Pressler St, Houston TX 77030
| | - Gregory Pieters
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Davide Audisio
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, (France)
| | - Laurent Devel
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SIMoS, 91191 Gif-sur-Yvette, (France),
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9
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Bodero L, Guitot K, Lensen N, Lequin O, Brigaud T, Ongeri S, Chaume G. Introducing the Chiral Constrained α-Trifluoromethylalanine in Aib foldamers to Control, Quantify and Assign the Helical Screw-Sense. Chemistry 2021; 28:e202103887. [PMID: 34890083 DOI: 10.1002/chem.202103887] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Indexed: 11/11/2022]
Abstract
Oligomers of α-aminoisobutyric acid (Aib) are achiral peptides that adopt 3 10 helical structures with equal population of left- and right-handed conformers. Yet, the screw-sense preference of the helical chain may be controlled by a single chiral residue located at one terminus. 1 H and 19 F NMR, X-ray crystallography and circular dichroism studies on new Aib oligomers show that the incorporation of a chiral quaternary α-trifluoromethylalanine at their N -terminus induces a reversal of the screw-sense preference of the 3 10 -helix compared to that of a non-fluorinated analogue having an l-α-methyl valine residue. This work demonstrates that, among the many particular properties of introducing a trifluoromethyl group into foldamers, its stereo-electronic properties are of major interest to control the helical screw sense. Its use as an easy-to-handle 19 F NMR probe to reliably determine both the magnitude of the screw-sense preference and its sign assignment is also of remarkable interest.
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Affiliation(s)
| | | | | | - Olivier Lequin
- Sorbonne Université Campus Pierre et Marie Curie: Sorbonne Universite Campus Pierre et Marie Curie, chemistry, FRANCE
| | | | | | - Grégory Chaume
- CY Cergy Paris Universite, Chemistry, 5 mail Gay Lussac, 95000, Cergy-Pontoise, FRANCE
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10
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Kaminska M, Bruyat P, Malgorn C, Doladilhe M, Cassar‐Lajeunesse E, Fruchart Gaillard C, De Souza M, Beau F, Thai R, Correia I, Galat A, Georgiadis D, Lequin O, Dive V, Bregant S, Devel L. Ligand‐Directed Modification of Active Matrix Metalloproteases: Activity‐based Probes with no Photolabile Group. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106117] [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: 11/10/2022]
Affiliation(s)
- Monika Kaminska
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Pierrick Bruyat
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Carole Malgorn
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Marion Doladilhe
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Evelyne Cassar‐Lajeunesse
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Carole Fruchart Gaillard
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Mélissa De Souza
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Fabrice Beau
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Robert Thai
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Isabelle Correia
- CNRS, Laboratoire des Biomolécules, LBM Sorbonne Université Ecole Normale Supérieure PSL University 75005 Paris France
| | - Andrzej Galat
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Dimitris Georgiadis
- Department of Chemistry Laboratory of Organic Chemistry University of Athens Panepistimiopolis Zografou 15771 Athens Greece
| | - Olivier Lequin
- CNRS, Laboratoire des Biomolécules, LBM Sorbonne Université Ecole Normale Supérieure PSL University 75005 Paris France
| | - Vincent Dive
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Sarah Bregant
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
| | - Laurent Devel
- Université Paris-Saclay CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS 91191 Gif-sur-Yvette France
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11
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Kaminska M, Bruyat P, Malgorn C, Doladilhe M, Cassar-Lajeunesse E, Fruchart Gaillard C, De Souza M, Beau F, Thai R, Correia I, Galat A, Georgiadis D, Lequin O, Dive V, Bregant S, Devel L. Ligand-Directed Modification of Active Matrix Metalloproteases: Activity-based Probes with no Photolabile Group. Angew Chem Int Ed Engl 2021; 60:18272-18279. [PMID: 34096148 DOI: 10.1002/anie.202106117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/06/2021] [Indexed: 12/12/2022]
Abstract
Activity-based probes enable discrimination between the active enzyme and its inactive or inactivated counterparts. Since metalloproteases catalysis is non-covalent, activity-based probes targeting them have been systematically developed by decorating reversible inhibitors with photo-crosslinkers. By exploiting two types of ligand-guided chemistry, we identified novel activity-based probes capable of covalently modifying the active site of matrix metalloproteases (MMPs) without any external trigger. The ability of these probes to label recombinant MMPs was validated in vitro and the identity of the main labelling sites within their S3 ' region unambiguously assigned. We also demonstrated that our affinity probes can react with rhMMP12 at nanogram scale (that is, at 0.07 % (w/w)) in complex proteomes. Finally, this ligand-directed chemistry was successfully applied to label active MMP-12 secreted by eukaryote cells. We believe that this approach could be transferred more widely to many other metalloproteases, thus contributing to tackle their unresolved proteomic profiling in vivo.
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Affiliation(s)
- Monika Kaminska
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Pierrick Bruyat
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Carole Malgorn
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Marion Doladilhe
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Evelyne Cassar-Lajeunesse
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Carole Fruchart Gaillard
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Mélissa De Souza
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Fabrice Beau
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Robert Thai
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Isabelle Correia
- CNRS, Laboratoire des Biomolécules, LBM, Sorbonne Université, Ecole Normale Supérieure, PSL University, 75005, Paris, France
| | - Andrzej Galat
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Dimitris Georgiadis
- Department of Chemistry, Laboratory of Organic Chemistry, University of Athens, Panepistimiopolis, Zografou, 15771 Athens, Greece
| | - Olivier Lequin
- CNRS, Laboratoire des Biomolécules, LBM, Sorbonne Université, Ecole Normale Supérieure, PSL University, 75005, Paris, France
| | - Vincent Dive
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Sarah Bregant
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
| | - Laurent Devel
- Université Paris-Saclay, CEA, INRAE, Medicaments et Technologies pour la Sante (MTS), SIMoS, 91191, Gif-sur-Yvette, France
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12
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Le Chevalier F, Correia I, Matheron L, Babin M, Moutiez M, Canu N, Gondry M, Lequin O, Belin P. In vivo characterization of the activities of novel cyclodipeptide oxidases: new tools for increasing chemical diversity of bioproduced 2,5-diketopiperazines in Escherichia coli. Microb Cell Fact 2020; 19:178. [PMID: 32894164 PMCID: PMC7487605 DOI: 10.1186/s12934-020-01432-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 03/17/2020] [Accepted: 08/27/2020] [Indexed: 11/23/2022] Open
Abstract
Background Cyclodipeptide oxidases (CDOs) are enzymes involved in the biosynthesis of 2,5-diketopiperazines, a class of naturally occurring compounds with a large range of pharmaceutical activities. CDOs belong to cyclodipeptide synthase (CDPS)-dependent pathways, in which they play an early role in the chemical diversification of cyclodipeptides by introducing Cα-Cβ dehydrogenations. Although the activities of more than 100 CDPSs have been determined, the activities of only a few CDOs have been characterized. Furthermore, the assessment of the CDO activities on chemically-synthesized cyclodipeptides has shown these enzymes to be relatively promiscuous, making them interesting tools for cyclodipeptide chemical diversification. The purpose of this study is to provide the first completely microbial toolkit for the efficient bioproduction of a variety of dehydrogenated 2,5-diketopiperazines. Results We mined genomes for CDOs encoded in biosynthetic gene clusters of CDPS-dependent pathways and selected several for characterization. We co-expressed each with their associated CDPS in the pathway using Escherichia coli as a chassis and showed that the cyclodipeptides and the dehydrogenated derivatives were produced in the culture supernatants. We determined the biological activities of the six novel CDOs by solving the chemical structures of the biologically produced dehydrogenated cyclodipeptides. Then, we assessed the six novel CDOs plus two previously characterized CDOs in combinatorial engineering experiments in E. coli. We co-expressed each of the eight CDOs with each of 18 CDPSs selected for the diversity of cyclodipeptides they synthesize. We detected more than 50 dehydrogenated cyclodipeptides and determined the best CDPS/CDO combinations to optimize the production of 23. Conclusions Our study establishes the usefulness of CDPS and CDO for the bioproduction of dehydrogenated cyclodipeptides. It constitutes the first step toward the bioproduction of more complex and diverse 2,5-diketopiperazines.
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Affiliation(s)
- Fabien Le Chevalier
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Isabelle Correia
- Laboratoire des Biomolécules (LBM), Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, 75005, Paris, France
| | - Lucrèce Matheron
- Sorbonne Université, Institut de Biologie Paris Seine (IBPS), FRE3631, 75005, Paris, France
| | - Morgan Babin
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Mireille Moutiez
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Nicolas Canu
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Muriel Gondry
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France
| | - Olivier Lequin
- Laboratoire des Biomolécules (LBM), Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, 75005, Paris, France
| | - Pascal Belin
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), 91198, Gif-sur-Yvette, France.
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13
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Mazzoleni A, Real-Fernandez F, Larregola M, Nuti F, Lequin O, Papini AM, Mallet JM, Rovero P. Hyperglucosylated adhesin-derived peptides as antigenic probes in multiple sclerosis: Structure optimization and immunological evaluation. J Pept Sci 2020; 26:e3281. [PMID: 32790009 DOI: 10.1002/psc.3281] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/26/2020] [Accepted: 06/29/2020] [Indexed: 02/01/2023]
Abstract
Peptides mimicking antigenic epitopes targeted by antibodies can be powerful tools to be used as antigen surrogates for the specific diagnosis and treatment of autoimmune diseases. Obtaining structural insights about the nature of peptide-antibody interaction in complex mixtures such as sera is a critical goal. In multiple sclerosis (MS), we previously demonstrated that the N-linked β-d-glucopyranosyl moieties (N-Glc) containing epitopes in nontypeable Haemophilus influenzae adhesin C-terminal portion HMW1(1205-1526) were essential for high-affinity antibody binding in a subpopulation of MS patients. With the aim of developing peptide probes and assessing their binding properties to antibodies from sera of representative patients, we performed the systematic analysis of synthetic peptides based on HMW1(1347-1354) fragment bearing one or two N-Glc respectively on Asn-1349 and/or Asn-1352. The N-glucosylated nonapeptides efficiently bind to IgG antibodies, displaying IC50 in the range 10-8 -10-10 M by competitive indirect enzyme-linked immunosorbent assay (ELISA) in three representative MS patient sera. We selected the di-N-glucosylated adhesin peptide Ac-KAN (Glc)VTLN (Glc)TT-NH2 as the shortest sequence able to inhibit high-avidity interaction with N-Glc targeting IgM antibodies. Nuclear magnetic resonance (NMR)- and circular dichroism (CD)-based characterization showed that the binding properties of these antigens could not be ascribed to structural differences induced by the presence of up to two N-glucosyl moieties. Therefore, the antibody binding is not easily correlated to the position of the sugar or to a determined conformation in water.
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Affiliation(s)
- Antonio Mazzoleni
- Laboratoire des Biomolécules, Département de chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, Paris, France.,Laboratory of Peptide and Protein Chemistry and Biology, Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Feliciana Real-Fernandez
- Laboratory of Peptide and Protein Chemistry and Biology, Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Maud Larregola
- UMR 8076 CNRS-BioCIS Team of Chemical Biology and PeptLab@UCP Platform of Peptide and Protein Chemistry and Biology, Cergy Pontoise, France.,Université Paris-Saclay, CNRS, BioCIS, Châtenay-Malabry, France
| | - Francesca Nuti
- Laboratory of Peptide and Protein Chemistry and Biology, Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, Paris, France
| | - Anna Maria Papini
- Laboratory of Peptide and Protein Chemistry and Biology, Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy.,UMR 8076 CNRS-BioCIS Team of Chemical Biology and PeptLab@UCP Platform of Peptide and Protein Chemistry and Biology, Cergy Pontoise, France.,Université Paris-Saclay, CNRS, BioCIS, Châtenay-Malabry, France
| | - Jean-Maurice Mallet
- Laboratoire des Biomolécules, Département de chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS, Paris, France
| | - Paolo Rovero
- Laboratory of Peptide and Protein Chemistry and Biology, Department of Neurosciences, Psychology, Drug Research and Child Health-Section of Pharmaceutical Sciences and Nutraceutics, University of Florence, Sesto Fiorentino, Italy
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14
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Tonali N, Correia I, Lesma J, Bernadat G, Ongeri S, Lequin O. Introducing sequential aza-amino acids units induces repeated β-turns and helical conformations in peptides. Org Biomol Chem 2020; 18:3452-3458. [PMID: 32091060 DOI: 10.1039/c9ob02654a] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A major current issue in medicinal chemistry is the design of small peptide analogues resistant to proteolysis and able to adopt preferential conformations, while preserving the selectivity and efficiency of natural peptides. Whereas the introduction of one aza-Gly in peptides has proven numerous biological and structural interest, the conformational effect of sequential aza-Gly or aza-amino acids bearing side chains has not been investigated. In this work, experimental NMR and X-ray data together with in silico conformational studies reveal that the introduction of two consecutive aza-amino acids in pseudotripeptides induces the formation of stable hydrogen-bonded β-turn structures. Notably, this stabilization effect relies on the presence of side chains on aza-amino acids, as more flexible conformations are observed with aza-Gly residues. Remarkably, a longer aza/aza/α/aza/aza/α pseudohexapeptide containing substituted aza-amino acids adopts repeated β-turns conformations which interconvert with a fully helical structure mimicking a 310 helix.
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Affiliation(s)
- Nicolo Tonali
- Université Paris-Saclay, CNRS, BioCIS, 92290 Châtenay-Malabry, France.
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15
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Jurkiewicz P, Senicourt L, Ayeb H, Lequin O, Lacapere JJ, Batoko H. A Plant-Specific N-terminal Extension Reveals Evolutionary Functional Divergence within Translocator Proteins. iScience 2020; 23:100889. [PMID: 32087576 PMCID: PMC7033594 DOI: 10.1016/j.isci.2020.100889] [Citation(s) in RCA: 6] [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: 06/21/2019] [Revised: 11/30/2019] [Accepted: 02/03/2020] [Indexed: 12/13/2022] Open
Abstract
Conserved translocator proteins (TSPOs) mediate cell stress responses possibly in a cell-type-specific manner. This work reports on the molecular function of plant TSPO and their possible evolutionary divergence. Arabidopsis thaliana TSPO (AtTSPO) is stress induced and has a conserved polybasic, plant-specific N-terminal extension. AtTSPO reduces water loss by depleting aquaporin PIP2;7 in the plasma membrane. Herein, AtTSPO was found to bind phosphoinositides in vitro, but only full-length AtTSPO or chimeric mouse TSPO with an AtTSPO N-terminus bound PI(4,5)P2in vitro and modified PIP2;7 levels in vivo. Expression of AtTSPO but not its N-terminally truncated variant enhanced phospholipase C activity and depleted PI(4,5)P2 from the plasma membrane and its enrichment in Golgi membranes. Deletion or point mutations within the AtTSPO N-terminus affected PI(4,5)P2 binding and almost prevented AtTSPO-PIP2;7 interaction in vivo. The findings imply functional divergence of plant TSPOs from bacterial and animal counterparts via evolutionary acquisition of the phospholipid-interacting N-terminus.
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Affiliation(s)
- Pawel Jurkiewicz
- Louvain Institute of Biomolecular Science and Technology (LIBST), University of Louvain (UCLouvain), Croix du Sud 4-5, L7.07.14, 1348 Louvain-la-Neuve, Belgium
| | - Lucile Senicourt
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 Place Jussieu, 75005 Paris, France
| | - Haitham Ayeb
- Louvain Institute of Biomolecular Science and Technology (LIBST), University of Louvain (UCLouvain), Croix du Sud 4-5, L7.07.14, 1348 Louvain-la-Neuve, Belgium
| | - Olivier Lequin
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 Place Jussieu, 75005 Paris, France
| | - Jean-Jacques Lacapere
- Sorbonne Université, École Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, 4 Place Jussieu, 75005 Paris, France
| | - Henri Batoko
- Louvain Institute of Biomolecular Science and Technology (LIBST), University of Louvain (UCLouvain), Croix du Sud 4-5, L7.07.14, 1348 Louvain-la-Neuve, Belgium.
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16
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Toczek J, Bordenave T, Gona K, Kim HY, Beau F, Georgiadis D, Correia I, Ye Y, Razavian M, Jung JJ, Lequin O, Dive V, Sadeghi MM, Devel L. Novel Matrix Metalloproteinase 12 Selective Radiotracers for Vascular Molecular Imaging. J Med Chem 2019; 62:9743-9752. [PMID: 31603669 DOI: 10.1021/acs.jmedchem.9b01186] [Citation(s) in RCA: 10] [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: 12/13/2022]
Abstract
Matrix metalloproteinase-12 (MMP-12) is highly upregulated in several inflammatory diseases, including abdominal aortic aneurysm (AAA). Here we report four novel 99mTc-labeled radiotracers derived from a highly selective competitive MMP-12 inhibitor. These tracers in their 99gTc version were assessed in vitro on a set of human metalloproteases and displayed high affinity and selectivity toward MMP-12. Their radiolabeling with 99mTc was shown to be efficient and stable in both buffer and mouse blood. The tracers showed major differences in their biodistribution and blood clearance. On the basis of its in vivo performance, [99mTc]-1 was selected for evaluation in murine AAA, where MMP-12 gene expression is upregulated. Autoradiography of aortae at 2 h postinjection revealed high uptake of [99mTc]-1 in AAA relative to adjacent aorta. Tracer uptake specificity was demonstrated through in vivo competition. This study paves the way for further evaluation of [99mTc]-1 for imaging AAA and other MMP-12-associated diseases.
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Affiliation(s)
- Jakub Toczek
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Thomas Bordenave
- CEA, Institut des Sciences du Vivant Frédéric Joliot, Service d'Ingénierie Moléculaire des Protéines (SIMOPRO), Université Paris-Saclay , Gif-sur-Yvette 91190 , France
| | - Kiran Gona
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Hye-Yeong Kim
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Fabrice Beau
- CEA, Institut des Sciences du Vivant Frédéric Joliot, Service d'Ingénierie Moléculaire des Protéines (SIMOPRO), Université Paris-Saclay , Gif-sur-Yvette 91190 , France
| | - Dimitris Georgiadis
- Laboratory of Organic Chemistry, Department of Chemistry , University of Athens , Panepistimiopolis Zografou, 15771 Athens , Greece
| | - Isabelle Correia
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France
| | - Yunpeng Ye
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Mahmoud Razavian
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Jae-Joon Jung
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France
| | - Vincent Dive
- CEA, Institut des Sciences du Vivant Frédéric Joliot, Service d'Ingénierie Moléculaire des Protéines (SIMOPRO), Université Paris-Saclay , Gif-sur-Yvette 91190 , France
| | - Mehran M Sadeghi
- Cardiovascular Molecular Imaging Laboratory, Section of Cardiovascular Medicine and Yale Cardiovascular Research Center , Yale University School of Medicine , New Haven , Connecticut 06511 , United States.,Veterans Affairs Connecticut Healthcare System , West Haven , Connecticut 06516 , United States
| | - Laurent Devel
- CEA, Institut des Sciences du Vivant Frédéric Joliot, Service d'Ingénierie Moléculaire des Protéines (SIMOPRO), Université Paris-Saclay , Gif-sur-Yvette 91190 , France
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17
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Dubois P, Correia I, Le Chevalier F, Dubois S, Jacques I, Canu N, Moutiez M, Thai R, Gondry M, Lequin O, Belin P. Author Correction: Reprogramming Escherichia coli for the production of prenylated indole diketopiperazine alkaloids. Sci Rep 2019; 9:15009. [PMID: 31611595 PMCID: PMC6791860 DOI: 10.1038/s41598-019-51404-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Pavlina Dubois
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Isabelle Correia
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Fabien Le Chevalier
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | | | - Isabelle Jacques
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France.,Isabelle B. Jacques, APTEEUS, Institut Pasteur de Lille, Lille, France
| | - Nicolas Canu
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Mireille Moutiez
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Robert Thai
- SIMOPRO, CEA, 91198, Gif-sur-Yvette, cedex, France
| | - Muriel Gondry
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France.
| | - Pascal Belin
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France.
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18
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Denèfle T, Pramil E, Gómez-Morales L, Levasseur MD, Lardé E, Newton C, Herry K, Herbi L, Lamotte Y, Odile E, Ancellin N, Grondin P, Martinez-Torres AC, Viviani F, Merle-Beral H, Lequin O, Susin SA, Karoyan P. Homotrimerization Approach in the Design of Thrombospondin-1 Mimetic Peptides with Improved Potency in Triggering Regulated Cell Death of Cancer Cells. J Med Chem 2019; 62:7656-7668. [PMID: 31403795 DOI: 10.1021/acs.jmedchem.9b00024] [Citation(s) in RCA: 4] [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: 02/06/2023]
Abstract
In order to optimize the potency of the first serum-stable peptide agonist of CD47 (PKHB1) in triggering regulated cell death of cancer cells, we designed a maturation process aimed to mimic the trimeric structure of the thrombospondin-1/CD47 binding epitope. For that purpose, an N-methylation scan of the PKHB1 sequence was realized to prevent peptide aggregation. Structural and pharmacological analyses were conducted in order to assess the conformational impact of these chemical modifications on the backbone structure and the biological activity. This structure-activity relationship study led to the discovery of a highly soluble N-methylated peptide that we termed PKT16. Afterward, this monomer was used for the design of a homotrimeric peptide mimic that we termed [PKT16]3, which proved to be 10-fold more potent than its monomeric counterpart. A pharmacological evaluation of [PKT16]3 in inducing cell death of adherent (A549) and nonadherent (MEC-1) cancer cell lines was also performed.
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Affiliation(s)
- Thomas Denèfle
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Elodie Pramil
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France.,Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Luis Gómez-Morales
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France.,Laboratory of Immunology and Virology , Autonomous University of Nuevo Leon , 66451 San Nicolas de los Garza , NL , Mexico
| | - Mikail D Levasseur
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Eva Lardé
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Clara Newton
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Kenny Herry
- OncoDesign , 25 Avenue du Québec , 91140 Les Ulis , France
| | - Linda Herbi
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Yann Lamotte
- OncoDesign , 25 Avenue du Québec , 91140 Les Ulis , France
| | - Estelle Odile
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | | | - Pascal Grondin
- OncoDesign , 25 Avenue du Québec , 91140 Les Ulis , France
| | - Ana-Carolina Martinez-Torres
- Laboratory of Immunology and Virology , Autonomous University of Nuevo Leon , 66451 San Nicolas de los Garza , NL , Mexico
| | | | - Hélène Merle-Beral
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Olivier Lequin
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France
| | - Santos A Susin
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Philippe Karoyan
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France.,SiRIC CURAMUS (CANCER UNITED RESEARCH ASSOCIATING MEDICINE, UNIVERSITY & SOCIETY, Site de Recherche Intégrée sur le Cancer) IUC, AP-HP.6 , Sorbonne Université 75005 Paris , France.,Kayvisa AG , Industriestrasse, 44 , 6300 Zug , Switzerland.,Kaybiotix GmbH , Zugerstrasse 32 , 6340 Baar , Switzerland
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19
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Dubois P, Correia I, Le Chevalier F, Dubois S, Jacques I, Canu N, Moutiez M, Thai R, Gondry M, Lequin O, Belin P. Reprogramming Escherichia coli for the production of prenylated indole diketopiperazine alkaloids. Sci Rep 2019; 9:9208. [PMID: 31239480 PMCID: PMC6592928 DOI: 10.1038/s41598-019-45519-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 01/15/2019] [Accepted: 06/05/2019] [Indexed: 11/09/2022] Open
Abstract
Prenylated indole diketopiperazine (DKP) alkaloids are important bioactive molecules or their precursors. In the context of synthetic biology, efficient means for their biological production would increase their chemical diversification and the discovery of novel bioactive compounds. Here, we prove the suitability of the Escherichia coli chassis for the production of prenylated indole DKP alkaloids. We used enzyme combinations not found in nature by co-expressing bacterial cyclodipeptide synthases (CDPSs) that assemble the DKP ring and fungal prenyltransferases (PTs) that transfer the allylic moiety from the dimethylallyl diphosphate (DMAPP) to the indole ring of tryptophanyl-containing cyclodipeptides. Of the 11 tested combinations, seven resulted in the production of eight different prenylated indole DKP alkaloids as determined by LC-MS/MS and NMR characterization. Two were previously undescribed. Engineering E. coli by introducing a hybrid mevalonate pathway for increasing intracellular DMAPP levels improved prenylated indole DKP alkaloid production. Purified product yields of 2–26 mg/L per culture were obtained from culture supernatants. Our study paves the way for the bioproduction of novel prenylated indole DKP alkaloids in a tractable chassis that can exploit the cyclodipeptide diversity achievable with CDPSs and the numerous described PT activities.
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Affiliation(s)
- Pavlina Dubois
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Isabelle Correia
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France
| | - Fabien Le Chevalier
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | | | - Isabelle Jacques
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France.,Isabelle B. Jacques, APTEEUS, Institut Pasteur de Lille, Lille, France
| | - Nicolas Canu
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Mireille Moutiez
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Robert Thai
- SIMOPRO, CEA, 91198, Gif-sur-Yvette, cedex, France
| | - Muriel Gondry
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 75005, Paris, France.
| | - Pascal Belin
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay, 91198, Gif-sur-Yvette, cedex, France.
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20
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Nuti F, Gellini C, Larregola M, Squillantini L, Chelli R, Salvi PR, Lequin O, Pietraperzia G, Papini AM. A Photochromic Azobenzene Peptidomimetic of a β-Turn Model Peptide Structure as a Conformational Switch. Front Chem 2019; 7:180. [PMID: 30984746 PMCID: PMC6449423 DOI: 10.3389/fchem.2019.00180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 01/10/2019] [Accepted: 03/07/2019] [Indexed: 01/09/2023] Open
Abstract
The insertion of azobenzene moiety in complex molecular protein or peptide systems can lead to molecular switches to be used to determine kinetics of folding/unfolding properties of secondary structures, such as α-helix, β-turn, or β-hairpin. In fact, in azobenzene, absorption of light induces a reversible trans ↔ cis isomerization, which in turns generates a strain or a structure relaxation in the chain that causes peptide folding/unfolding. In particular azobenzene may permit reversible conformational control of hairpin formation. In the present work a synthetic photochromic azobenzene amino acid derivative was incorporated as a turn element to modify the synthetic peptide [Pro7,Asn8,Thr10]CSF114 previously designed to fold as a type I β-turn structure in biomimetic HFA/water solution. In particular, the P-N-H fragment at positions 7–9, involved in a β-hairpin, was replaced by an azobenzene amino acid derivative (synthesized ad hoc) to investigate if the electronic properties of the novel peptidomimetic analog could induce variations in the isomerization process. The absorption spectra of the azopeptidomimetic analog of the type I β-turn structure and of the azobenzene amino acid as control were measured as a function of the irradiation time exciting into the respective first ππ* and nπ* transition bands. Isomerization of the azopeptidomimetic results strongly favored by exciting into the ππ* transition. Moreover, conformational changes induced by the cis↔ trans azopeptidomimetic switch were investigated by NMR in different solvents.
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Affiliation(s)
- Francesca Nuti
- Laboratory of Peptide and Protein Chemistry and Biology (PeptLab), Sesto Fiorentino, Italy.,Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Cristina Gellini
- Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Maud Larregola
- PeptLab@UCP Platform and Laboratory of Chemical Biology EA4505, Université Paris-Seine, Cergy-Pontoise, France
| | - Lorenzo Squillantini
- Laboratory of Peptide and Protein Chemistry and Biology (PeptLab), Sesto Fiorentino, Italy.,Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Riccardo Chelli
- Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), Sesto Fiorentino, Italy
| | - Pier Remigio Salvi
- Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy
| | - Olivier Lequin
- Laboratory of Biomolecules, CNRS, Sorbonne University, Ecole Normale Superieure, PSL University, Paris, France
| | - Giangaetano Pietraperzia
- Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), Sesto Fiorentino, Italy
| | - Anna Maria Papini
- Laboratory of Peptide and Protein Chemistry and Biology (PeptLab), Sesto Fiorentino, Italy.,Department of Chemistry "Ugo Schiff", University of Florence, Sesto Fiorentino, Italy.,PeptLab@UCP Platform and Laboratory of Chemical Biology EA4505, Université Paris-Seine, Cergy-Pontoise, France
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21
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Iatmanen-Harbi S, Senicourt L, Papadopoulos V, Lequin O, Lacapere JJ. Characterization of the High-Affinity Drug Ligand Binding Site of Mouse Recombinant TSPO. Int J Mol Sci 2019; 20:ijms20061444. [PMID: 30901938 PMCID: PMC6470738 DOI: 10.3390/ijms20061444] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/18/2019] [Accepted: 03/19/2019] [Indexed: 02/08/2023] Open
Abstract
The optimization of translocator protein (TSPO) ligands for Positron Emission Tomography as well as for the modulation of neurosteroids is a critical necessity for the development of TSPO-based diagnostics and therapeutics of neuropsychiatrics and neurodegenerative disorders. Structural hints on the interaction site and ligand binding mechanism are essential for the development of efficient TSPO ligands. Recently published atomic structures of recombinant mammalian and bacterial TSPO1, bound with either the high-affinity drug ligand PK 11195 or protoporphyrin IX, have revealed the membrane protein topology and the ligand binding pocket. The ligand is surrounded by amino acids from the five transmembrane helices as well as the cytosolic loops. However, the precise mechanism of ligand binding remains unknown. Previous biochemical studies had suggested that ligand selectivity and binding was governed by these loops. We performed site-directed mutagenesis to further test this hypothesis and measured the binding affinities. We show that aromatic residues (Y34 and F100) from the cytosolic loops contribute to PK 11195 access to its binding site. Limited proteolytic digestion, circular dichroism and solution two-dimensional (2-D) NMR using selective amino acid labelling provide information on the intramolecular flexibility and conformational changes in the TSPO structure upon PK 11195 binding. We also discuss the differences in the PK 11195 binding affinities and the primary structure between TSPO (TSPO1) and its paralogous gene product TSPO2.
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Affiliation(s)
- Soria Iatmanen-Harbi
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 4 place Jussieu, F-75005 Paris, France.
| | - Lucile Senicourt
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 4 place Jussieu, F-75005 Paris, France.
| | - Vassilios Papadopoulos
- Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA 90089, USA.
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 4 place Jussieu, F-75005 Paris, France.
| | - Jean-Jacques Lacapere
- Sorbonne Université, Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules (LBM), 4 place Jussieu, F-75005 Paris, France.
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22
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Byrne C, Belnou M, Baulieu E, Lequin O, Jacquot Y. Electronic circular dichroism and nuclear magnetic resonance studies of peptides derived from the FKBP52‐interacting β‐turn of the hERα ligand‐binding domain. Pept Sci (Hoboken) 2019. [DOI: 10.1002/pep2.24113] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Cillian Byrne
- Sorbonne Université, Ecole Normale SupérieurePSL University, CNRS UMR 7203, Laboratoire des Biomolécules Paris France
- Institut Baulieu, Université Paris‐SaclayINSERM UMR 1195, Neuroprotection and Neuroregeneration Le Kremlin Bicêtre France
| | - Mathilde Belnou
- Sorbonne Université, Ecole Normale SupérieurePSL University, CNRS UMR 7203, Laboratoire des Biomolécules Paris France
| | - Etienne‐Emile Baulieu
- Institut Baulieu, Université Paris‐SaclayINSERM UMR 1195, Neuroprotection and Neuroregeneration Le Kremlin Bicêtre France
| | - Olivier Lequin
- Sorbonne Université, Ecole Normale SupérieurePSL University, CNRS UMR 7203, Laboratoire des Biomolécules Paris France
| | - Yves Jacquot
- Sorbonne Université, Ecole Normale SupérieurePSL University, CNRS UMR 7203, Laboratoire des Biomolécules Paris France
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23
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Hoffmann AR, Saravanan MS, Lequin O, Killian JA, Khemtemourian L. A single mutation on the human amyloid polypeptide modulates fibril growth and affects the mechanism of amyloid-induced membrane damage. Biochimica et Biophysica Acta (BBA) - Biomembranes 2018; 1860:1783-1792. [DOI: 10.1016/j.bbamem.2018.02.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/19/2018] [Accepted: 02/20/2018] [Indexed: 12/30/2022]
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24
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Hostachy S, Masuda M, Miki T, Hamachi I, Sagan S, Lequin O, Medjoubi K, Somogyi A, Delsuc N, Policar C. Graftable SCoMPIs enable the labeling and X-ray fluorescence imaging of proteins. Chem Sci 2018; 9:4483-4487. [PMID: 29896390 PMCID: PMC5958345 DOI: 10.1039/c8sc00886h] [Citation(s) in RCA: 12] [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: 02/23/2018] [Accepted: 04/13/2018] [Indexed: 11/21/2022] Open
Abstract
Bio-imaging techniques alternative to fluorescence microscopy are gaining increasing interest as complementary tools to visualize and analyze biological systems. Among them, X-ray fluorescence microspectroscopy provides information on the local content and distribution of heavy elements (Z ≥ 14) in cells or biological samples. In this context, similar tools to those developed for fluorescence microscopy are desired, including chemical probes or tags. In this work, we study rhenium complexes as a convenient and sensitive probe for X-ray fluorescence microspectroscopy. We demonstrate their ability to label and sense exogenously incubated or endogenous proteins inside cells.
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Affiliation(s)
- Sarah Hostachy
- Laboratoire des Biomolécules, LBM , Département de Chimie , École Normale Supérieure , PSL University , Sorbonne Université , CNRS , 75005 Paris , France .
| | - Marie Masuda
- Department of Synthetic Chemistry and Biological Chemistry , Graduate School of Engineering , Kyoto University , Kyoto 615-8510 , Japan
| | - Takayuki Miki
- Department of Synthetic Chemistry and Biological Chemistry , Graduate School of Engineering , Kyoto University , Kyoto 615-8510 , Japan
| | - Itaru Hamachi
- Department of Synthetic Chemistry and Biological Chemistry , Graduate School of Engineering , Kyoto University , Kyoto 615-8510 , Japan
| | - Sandrine Sagan
- Sorbonne Université , École Normale Supérieure , PSL University , CNRS , Laboratoire des Biomolécules, LBM , 75005 Paris , France
| | - Olivier Lequin
- Sorbonne Université , École Normale Supérieure , PSL University , CNRS , Laboratoire des Biomolécules, LBM , 75005 Paris , France
| | - Kadda Medjoubi
- Nanoscopium Synchrotron SOLEIL Saint-Aubin , 91192 , Gif-sur-Yvette Cedex , France
| | - Andrea Somogyi
- Nanoscopium Synchrotron SOLEIL Saint-Aubin , 91192 , Gif-sur-Yvette Cedex , France
| | - Nicolas Delsuc
- Laboratoire des Biomolécules, LBM , Département de Chimie , École Normale Supérieure , PSL University , Sorbonne Université , CNRS , 75005 Paris , France .
| | - Clotilde Policar
- Laboratoire des Biomolécules, LBM , Département de Chimie , École Normale Supérieure , PSL University , Sorbonne Université , CNRS , 75005 Paris , France .
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25
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Xu Y, Correia I, Ha-Duong T, Kihal N, Soulier JL, Kaffy J, Crousse B, Lequin O, Ongeri S. The use of 4,4,4-trifluorothreonine to stabilize extended peptide structures and mimic β-strands. Beilstein J Org Chem 2018; 13:2842-2853. [PMID: 29564012 PMCID: PMC5753055 DOI: 10.3762/bjoc.13.276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 09/28/2017] [Accepted: 12/13/2017] [Indexed: 01/06/2023] Open
Abstract
Pentapeptides having the sequence R-HN-Ala-Val-X-Val-Leu-OMe, where the central residue X is L-serine, L-threonine, (2S,3R)-L-CF3-threonine and (2S,3S)-L-CF3-threonine were prepared. The capacity of (2S,3S)- and (2S,3R)-CF3-threonine analogues to stabilize an extended structure when introduced in the central position of pentapeptides is demonstrated by NMR conformational studies and molecular dynamics simulations. CF3-threonine containing pentapeptides are more prone to mimic β-strands than their natural Ser and Thr pentapeptide analogues. The proof of concept that these fluorinated β-strand mimics are able to disrupt protein–protein interactions involving β-sheet structures is provided. The CF3-threonine containing pentapeptides interact with the amyloid peptide Aβ1-42 in order to reduce the protein–protein interactions mediating its aggregation process.
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Affiliation(s)
- Yaochun Xu
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Isabelle Correia
- Sorbonne Universités, UPMC Univ Paris 06, Ecole Normale Supérieure, PSL Research University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Tap Ha-Duong
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Nadjib Kihal
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Jean-Louis Soulier
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Julia Kaffy
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Benoît Crousse
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Olivier Lequin
- Sorbonne Universités, UPMC Univ Paris 06, Ecole Normale Supérieure, PSL Research University, CNRS, Laboratoire des Biomolécules, 4 place Jussieu, 75252 Paris Cedex 05, France
| | - Sandrine Ongeri
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
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26
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Canu N, Belin P, Thai R, Correia I, Lequin O, Seguin J, Moutiez M, Gondry M. Incorporation of Non-canonical Amino Acids into 2,5-Diketopiperazines by Cyclodipeptide Synthases. Angew Chem Int Ed Engl 2018; 57:3118-3122. [DOI: 10.1002/anie.201712536] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Indexed: 01/22/2023]
Affiliation(s)
- Nicolas Canu
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Pascal Belin
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Robert Thai
- SIMOPRO; CEA-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Isabelle Correia
- Sorbonne Université; Ecole Normale Supérieure; PSL University; CNRS; Laboratoire des Biomolécules (LBM); 75005 Paris France
| | - Olivier Lequin
- Sorbonne Université; Ecole Normale Supérieure; PSL University; CNRS; Laboratoire des Biomolécules (LBM); 75005 Paris France
| | - Jérôme Seguin
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Mireille Moutiez
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Muriel Gondry
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
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27
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Canu N, Belin P, Thai R, Correia I, Lequin O, Seguin J, Moutiez M, Gondry M. Incorporation of Non-canonical Amino Acids into 2,5-Diketopiperazines by Cyclodipeptide Synthases. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712536] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Nicolas Canu
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Pascal Belin
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Robert Thai
- SIMOPRO; CEA-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Isabelle Correia
- Sorbonne Université; Ecole Normale Supérieure; PSL University; CNRS; Laboratoire des Biomolécules (LBM); 75005 Paris France
| | - Olivier Lequin
- Sorbonne Université; Ecole Normale Supérieure; PSL University; CNRS; Laboratoire des Biomolécules (LBM); 75005 Paris France
| | - Jérôme Seguin
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Mireille Moutiez
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
| | - Muriel Gondry
- Institute for Integrated Biology of the Cell (I2BC); CEA, CNRS, Univ. Paris-Sud, Université Paris-Saclay; 91198 Gif-sur-Yvette cedex France
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28
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Hoffmann ARF, Caillon L, Salazar Vazquez LS, Spath PA, Carlier L, Khemtémourian L, Lequin O. Time dependence of NMR observables reveals salient differences in the accumulation of early aggregated species between human islet amyloid polypeptide and amyloid-β. Phys Chem Chem Phys 2018; 20:9561-9573. [DOI: 10.1039/c7cp07516b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Proton NMR shows that IAPP fibril formation does not involve the accumulation of early aggregated species, in contrast with Aβ.
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Affiliation(s)
- Anaïs R. F. Hoffmann
- Sorbonne Université
- Ecole Normale Supérieure
- PSL University
- CNRS
- Laboratoire des Biomolécules (LBM)
| | - Lucie Caillon
- Sorbonne Université
- Ecole Normale Supérieure
- PSL University
- CNRS
- Laboratoire des Biomolécules (LBM)
| | | | - Pierre-Alexandre Spath
- Sorbonne Université
- Ecole Normale Supérieure
- PSL University
- CNRS
- Laboratoire des Biomolécules (LBM)
| | - Ludovic Carlier
- Sorbonne Université
- Ecole Normale Supérieure
- PSL University
- CNRS
- Laboratoire des Biomolécules (LBM)
| | - Lucie Khemtémourian
- Sorbonne Université
- Ecole Normale Supérieure
- PSL University
- CNRS
- Laboratoire des Biomolécules (LBM)
| | - Olivier Lequin
- Sorbonne Université
- Ecole Normale Supérieure
- PSL University
- CNRS
- Laboratoire des Biomolécules (LBM)
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29
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Vahdati L, Kaffy J, Brinet D, Bernadat G, Correia I, Panzeri S, Fanelli R, Lequin O, Taverna M, Ongeri S, Piarulli U. Synthesis and Characterization of Hairpin Mimics that Modulate the Early Oligomerization and Fibrillization of Amyloid β-Peptide. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Leila Vahdati
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Julia Kaffy
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Dimitri Brinet
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
- Protéins and Nanotechnology in analytical science; Institut Galien de Paris Sud; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Guillaume Bernadat
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Isabelle Correia
- Sorbonne Universités; UPMC Univ Paris 06; Ecole Normale Supérieure; PSL Research University; CNRS; Laboratoire des Biomolécules; 4 place Jussieu 75252 Paris Cedex 05 France
| | - Silvia Panzeri
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
| | - Roberto Fanelli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
| | - Olivier Lequin
- Sorbonne Universités; UPMC Univ Paris 06; Ecole Normale Supérieure; PSL Research University; CNRS; Laboratoire des Biomolécules; 4 place Jussieu 75252 Paris Cedex 05 France
| | - Myriam Taverna
- Protéins and Nanotechnology in analytical science; Institut Galien de Paris Sud; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Sandrine Ongeri
- BioCIS; Univ. Paris-Sud; CNRS; Université Paris-Saclay; 92290 Châtenay-Malabry France
| | - Umberto Piarulli
- Università degli Studi dell'Insubria; Dipartimento di Scienza e Alta Tecnologia; Via Valleggio 11 22100 Como Italy
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30
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Denèfle T, Boullet H, Herbi L, Newton C, Martinez-Torres AC, Guez A, Pramil E, Quiney C, Pourcelot M, Levasseur MD, Lardé E, Moumné R, Ogi FX, Grondin P, Merle-Beral H, Lequin O, Susin SA, Karoyan P. Thrombospondin-1 Mimetic Agonist Peptides Induce Selective Death in Tumor Cells: Design, Synthesis, and Structure-Activity Relationship Studies. J Med Chem 2016; 59:8412-21. [PMID: 27526615 DOI: 10.1021/acs.jmedchem.6b00781] [Citation(s) in RCA: 16] [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: 12/28/2022]
Abstract
Thrombospondin-1 (TSP-1) is a glycoprotein considered as a key actor within the tumor microenvironment. Its binding to CD47, a cell surface receptor, triggers programmed cell death. Previous studies allowed the identification of 4N1K decapeptide derived from the TSP-1/CD47 binding epitope. Here, we demonstrate that this peptide is able to induce selective apoptosis of various cancer cell lines while sparing normal cells. A structure-activity relationship study led to the design of the first serum stable TSP-1 mimetic agonist peptide able to trigger selective programmed cell death (PCD) of at least lung, breast, and colorectal cancer cells. Altogether, these results will be of valuable interest for further investigation in the design of potent CD47 agonist peptides, opening new perspectives for the development of original anticancer therapies.
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Affiliation(s)
- Thomas Denèfle
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,UPMC Université Paris 06, Laboratoire des BioMolécules, Site GSK, 25-27 Avenue du Québec, 91140 Les Ulis, France
| | - Héloise Boullet
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France
| | - Linda Herbi
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, Centre de Recherche des Cordeliers, INSERM UMRS, 1138, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, UMRS 1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Paris, France
| | - Clara Newton
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,UPMC Université Paris 06, Laboratoire des BioMolécules, Site GSK, 25-27 Avenue du Québec, 91140 Les Ulis, France
| | - Ana-Carolina Martinez-Torres
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, Centre de Recherche des Cordeliers, INSERM UMRS, 1138, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, UMRS 1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Paris, France
| | - Alexandre Guez
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France
| | - Elodie Pramil
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, Centre de Recherche des Cordeliers, INSERM UMRS, 1138, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, UMRS 1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Paris, France
| | - Claire Quiney
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, Centre de Recherche des Cordeliers, INSERM UMRS, 1138, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, UMRS 1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Paris, France
| | - Marilyne Pourcelot
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,UPMC Université Paris 06, Laboratoire des BioMolécules, Site GSK, 25-27 Avenue du Québec, 91140 Les Ulis, France
| | - Mikail D Levasseur
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,UPMC Université Paris 06, Laboratoire des BioMolécules, Site GSK, 25-27 Avenue du Québec, 91140 Les Ulis, France
| | - Eva Lardé
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,UPMC Université Paris 06, Laboratoire des BioMolécules, Site GSK, 25-27 Avenue du Québec, 91140 Les Ulis, France
| | - Roba Moumné
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France
| | | | | | - Hélène Merle-Beral
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, Centre de Recherche des Cordeliers, INSERM UMRS, 1138, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, UMRS 1138, Paris, France.,AP-HP, GH Pitié-Salpêtrière, Service d'Hématologie Biologique, 75013 Paris, France
| | - Olivier Lequin
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France
| | - Santos A Susin
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team, Centre de Recherche des Cordeliers, INSERM UMRS, 1138, Paris, France.,Sorbonne Universités, UPMC Université Paris 06, UMRS 1138, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, UMRS 1138, Paris, France
| | - Philippe Karoyan
- Sorbonne Universités, UPMC Université Paris 06, Ecole Normale Supérieure, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,Département de Chimie, Ecole Normale Supérieure, PSL Research University, UPMC Université Paris 06, CNRS, Laboratoire des Biomolécules, 75005 Paris, France.,UPMC Université Paris 06, Laboratoire des BioMolécules, Site GSK, 25-27 Avenue du Québec, 91140 Les Ulis, France
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31
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Khan SN, Charlier C, Augustyniak R, Salvi N, Déjean V, Bodenhausen G, Lequin O, Pelupessy P, Ferrage F. Distribution of Pico- and Nanosecond Motions in Disordered Proteins from Nuclear Spin Relaxation. Biophys J 2016; 109:988-99. [PMID: 26331256 PMCID: PMC4564687 DOI: 10.1016/j.bpj.2015.06.069] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [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: 01/08/2015] [Revised: 05/15/2015] [Accepted: 06/23/2015] [Indexed: 11/30/2022] Open
Abstract
Intrinsically disordered proteins and intrinsically disordered regions (IDRs) are ubiquitous in the eukaryotic proteome. The description and understanding of their conformational properties require the development of new experimental, computational, and theoretical approaches. Here, we use nuclear spin relaxation to investigate the distribution of timescales of motions in an IDR from picoseconds to nanoseconds. Nitrogen-15 relaxation rates have been measured at five magnetic fields, ranging from 9.4 to 23.5 T (400-1000 MHz for protons). This exceptional wealth of data allowed us to map the spectral density function for the motions of backbone NH pairs in the partially disordered transcription factor Engrailed at 11 different frequencies. We introduce an approach called interpretation of motions by a projection onto an array of correlation times (IMPACT), which focuses on an array of six correlation times with intervals that are equidistant on a logarithmic scale between 21 ps and 21 ns. The distribution of motions in Engrailed varies smoothly along the protein sequence and is multimodal for most residues, with a prevalence of motions around 1 ns in the IDR. We show that IMPACT often provides better quantitative agreement with experimental data than conventional model-free or extended model-free analyses with two or three correlation times. We introduce a graphical representation that offers a convenient platform for a qualitative discussion of dynamics. Even when relaxation data are only acquired at three magnetic fields that are readily accessible, the IMPACT analysis gives a satisfactory characterization of spectral density functions, thus opening the way to a broad use of this approach.
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Affiliation(s)
- Shahid N Khan
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France
| | - Cyril Charlier
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France
| | - Rafal Augustyniak
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France
| | - Nicola Salvi
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne, BCH, Lausanne, Switzerland
| | - Victoire Déjean
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France
| | - Geoffrey Bodenhausen
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France; Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne, BCH, Lausanne, Switzerland
| | - Olivier Lequin
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France
| | - Philippe Pelupessy
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France
| | - Fabien Ferrage
- Département de Chimie, École Normale Supérieure-PSL Research University, Paris, France; Sorbonne Universités, UPMC Univ Paris 06, LBM, Paris, France; Centre National de la Recherche Scientifique, UMR 7203 LBM, Paris, France.
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32
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Quévrain E, Maubert MA, Michon C, Chain F, Marquant R, Tailhades J, Miquel S, Carlier L, Bermúdez-Humarán LG, Pigneur B, Lequin O, Kharrat P, Thomas G, Rainteau D, Aubry C, Breyner N, Afonso C, Lavielle S, Grill JP, Chassaing G, Chatel JM, Trugnan G, Xavier R, Langella P, Sokol H, Seksik P. Identification of an anti-inflammatory protein from Faecalibacterium prausnitzii, a commensal bacterium deficient in Crohn's disease. Gut 2016; 65:415-425. [PMID: 26045134 PMCID: PMC5136800 DOI: 10.1136/gutjnl-2014-307649] [Citation(s) in RCA: 480] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 05/21/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Crohn's disease (CD)-associated dysbiosis is characterised by a loss of Faecalibacterium prausnitzii, whose culture supernatant exerts an anti-inflammatory effect both in vitro and in vivo. However, the chemical nature of the anti-inflammatory compounds has not yet been determined. METHODS Peptidomic analysis using mass spectrometry was applied to F. prausnitzii supernatant. Anti-inflammatory effects of identified peptides were tested in vitro directly on intestinal epithelial cell lines and on cell lines transfected with a plasmid construction coding for the candidate protein encompassing these peptides. In vivo, the cDNA of the candidate protein was delivered to the gut by recombinant lactic acid bacteria to prevent dinitrobenzene sulfonic acid (DNBS)-colitis in mice. RESULTS The seven peptides, identified in the F. prausnitzii culture supernatants, derived from a single microbial anti-inflammatory molecule (MAM), a protein of 15 kDa, and comprising 53% of non-polar residues. This last feature prevented the direct characterisation of the putative anti-inflammatory activity of MAM-derived peptides. Transfection of MAM cDNA in epithelial cells led to a significant decrease in the activation of the nuclear factor (NF)-κB pathway with a dose-dependent effect. Finally, the use of a food-grade bacterium, Lactococcus lactis, delivering a plasmid encoding MAM was able to alleviate DNBS-induced colitis in mice. CONCLUSIONS A 15 kDa protein with anti-inflammatory properties is produced by F. prausnitzii, a commensal bacterium involved in CD pathogenesis. This protein is able to inhibit the NF-κB pathway in intestinal epithelial cells and to prevent colitis in an animal model.
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Affiliation(s)
- E. Quévrain
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
| | - M. A. Maubert
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,APHP, Hôpital Saint Antoine - Département PM2 Plateforme de Métabolomique, Peptidomique et dosage de Médicaments, F-75012 Paris, France
| | - C. Michon
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - F. Chain
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - R. Marquant
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,Ecole Normale Supérieure- PSL Research University, Département de Chimie 24 rue Lhomond, F-75005 Paris, France
| | - J. Tailhades
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,Ecole Normale Supérieure- PSL Research University, Département de Chimie 24 rue Lhomond, F-75005 Paris, France
| | - S. Miquel
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - L. Carlier
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,Ecole Normale Supérieure- PSL Research University, Département de Chimie 24 rue Lhomond, F-75005 Paris, France
| | - L. G. Bermúdez-Humarán
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - B. Pigneur
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
| | - O. Lequin
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,Ecole Normale Supérieure- PSL Research University, Département de Chimie 24 rue Lhomond, F-75005 Paris, France
| | - P. Kharrat
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - G. Thomas
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
| | - D. Rainteau
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,APHP, Hôpital Saint Antoine - Département PM2 Plateforme de Métabolomique, Peptidomique et dosage de Médicaments, F-75012 Paris, France
| | - C. Aubry
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - N. Breyner
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - C. Afonso
- Université de Rouen, UMR 6014 COBRA / IRCOF, F-76130 Mont Saint Aignan, France
| | - S. Lavielle
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,Ecole Normale Supérieure- PSL Research University, Département de Chimie 24 rue Lhomond, F-75005 Paris, France
| | - J.-P. Grill
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
| | - G. Chassaing
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,Ecole Normale Supérieure- PSL Research University, Département de Chimie 24 rue Lhomond, F-75005 Paris, France
| | - J. M. Chatel
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - G. Trugnan
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,APHP, Hôpital Saint Antoine - Département PM2 Plateforme de Métabolomique, Peptidomique et dosage de Médicaments, F-75012 Paris, France
| | - R. Xavier
- Center for Systems Biology, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - P. Langella
- INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,AgroParisTech, UMR Micalis, F-78350 Jouy-en-Josas, France
| | - H. Sokol
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,INRA, UMR1319 Micalis, F-78350 Jouy-en-Josas, France.
,APHP, Hôpital Saint Antoine – Service de Gastroentérologie et nutrition, F-75012 Paris, France
| | - P. Seksik
- Sorbonne Universités, UPMC Univ Paris 06, LBM, 27 rue de Chaligny, F-75012, Paris, France.
,INSERM-ERL 1157 and Inflammation-Immunopathology-Biotherapy Department (DHU i2B), CHU Saint-Antoine 27 rue de Chaligny, F-75012 Paris, France.
,CNRS, UMR 7203 LBM, F-75005, Paris, France
,APHP, Hôpital Saint Antoine – Service de Gastroentérologie et nutrition, F-75012 Paris, France
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33
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Kaffy J, Brinet D, Soulier JL, Correia I, Tonali N, Fera KF, Iacone Y, Hoffmann ARF, Khemtémourian L, Crousse B, Taylor M, Allsop D, Taverna M, Lequin O, Ongeri S. Designed Glycopeptidomimetics Disrupt Protein-Protein Interactions Mediating Amyloid β-Peptide Aggregation and Restore Neuroblastoma Cell Viability. J Med Chem 2016; 59:2025-40. [PMID: 26789783 DOI: 10.1021/acs.jmedchem.5b01629] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
How anti-Alzheimer's drug candidates that reduce amyloid 1-42 peptide fibrillization interact with the most neurotoxic species is far from being understood. We report herein the capacity of sugar-based peptidomimetics to inhibit both Aβ1-42 early oligomerization and fibrillization. A wide range of bio- and physicochemical techniques, such as a new capillary electrophoresis method, nuclear magnetic resonance, and surface plasmon resonance, were used to identify how these new molecules can delay the aggregation of Aβ1-42. We demonstrate that these molecules interact with soluble oligomers in order to maintain the presence of nontoxic monomers and to prevent fibrillization. These compounds totally suppress the toxicity of Aβ1-42 toward SH-SY5Y neuroblastoma cells, even at substoichiometric concentrations. Furthermore, demonstration that the best molecule combines hydrophobic moieties, hydrogen bond donors and acceptors, ammonium groups, and a hydrophilic β-sheet breaker element provides valuable insight for the future structure-based design of inhibitors of Aβ1-42 aggregation.
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Affiliation(s)
- Julia Kaffy
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Dimitri Brinet
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France.,Protéines et Nanotechnologies en Sciences Séparatives, Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Jean-Louis Soulier
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Isabelle Correia
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Nicolo Tonali
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Katia Fabiana Fera
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Yasmine Iacone
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France.,Protéines et Nanotechnologies en Sciences Séparatives, Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Anaïs R F Hoffmann
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Lucie Khemtémourian
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Benoit Crousse
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Mark Taylor
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University , Lancaster LA1 4YQ, U.K
| | - David Allsop
- Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University , Lancaster LA1 4YQ, U.K
| | - Myriam Taverna
- Protéines et Nanotechnologies en Sciences Séparatives, Institut Galien Paris-Sud, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
| | - Olivier Lequin
- Sorbonne Universités - UPMC Univ Paris 06, Ecole Normale Supérieure - PSL Research University, CNRS UMR 7203 LBM, 4 place Jussieu, 75252 Paris, Cedex 05, France
| | - Sandrine Ongeri
- Molécules Fluorées et Chimie Médicinale, BioCIS, Univ. Paris-Sud, CNRS, Université Paris Saclay , 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
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34
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Botz A, Gasparik V, Devillers E, Hoffmann ARF, Caillon L, Chelain E, Lequin O, Brigaud T, Khemtemourian L. (R)-α-trifluoromethylalanine containing short peptide in the inhibition of amyloid peptide fibrillation. Biopolymers 2015; 104:601-10. [DOI: 10.1002/bip.22670] [Citation(s) in RCA: 15] [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] [Received: 01/27/2015] [Revised: 03/16/2015] [Accepted: 05/04/2015] [Indexed: 12/25/2022]
Affiliation(s)
- Alexandra Botz
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Vincent Gasparik
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Emmanuelle Devillers
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Anais R. F. Hoffmann
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Lucie Caillon
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Evelyne Chelain
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Olivier Lequin
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
| | - Thierry Brigaud
- Laboratoire De Chimie Biologique, Université De Cergy-Pontoise; EA 4505, 5 Mail Gay-Lussac 95000 Cergy-Pontoise France
| | - Lucie Khemtemourian
- Sorbonne Universités, UPMC Univ Paris 06, Laboratoire des Biomolécules; 4 Place Jussieu F-75005 Paris France
- Ecole Normale Supérieure-PSL Research University, Département De Chimie; 24 rue Lhomond F-75005 Paris France
- CNRS, UMR 7203 Laboratoire Des Biomolécules; F-75005 Paris France
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35
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Real Fernández F, Di Pisa M, Rossi G, Auberger N, Lequin O, Larregola M, Benchohra A, Mansuy C, Chassaing G, Lolli F, Hayek J, Lavielle S, Rovero P, Mallet JM, Papini AM. Antibody Recognition in multiple sclerosis and rett syndrome using a collection of linear and cyclicN-glucosylated antigenic probes. Biopolymers 2015; 104:560-76. [DOI: 10.1002/bip.22677] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/17/2015] [Accepted: 05/04/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Feliciana Real Fernández
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmaceutical Sciences and Nutraceutics; University of Florence; Via Ugo Schiff 6, 50019 Sesto Fiorentino Italy
| | - Margherita Di Pisa
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Giada Rossi
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmaceutical Sciences and Nutraceutics; University of Florence; Via Ugo Schiff 6, 50019 Sesto Fiorentino Italy
| | - Nicolas Auberger
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Olivier Lequin
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Maud Larregola
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- PeptLab@UCP Platform and Laboratory of Chemical Biology EA4505; University of Cergy-Pontoise; 5 Mail Gay Lussac 95031 Cergy-Pontoise Cedex France
| | - Amina Benchohra
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- Department of Chemistry ‘Ugo Schiff’; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Italy
| | - Christelle Mansuy
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Gerard Chassaing
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Francesco Lolli
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- Dipartimento di Scienze Biomediche Sperimentali e Cliniche; University of Florence; Viale Morgagni 50 50134 Firenze Italy
| | - Joussef Hayek
- Child Neuropsychiatry Unit; Azienda Ospedaliera Universitaria Senese (AOUS); 53100 Siena Italy
| | - Solange Lavielle
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Paolo Rovero
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- Department of Neurosciences, Psychology, Drug Research and Child Health, Section of Pharmaceutical Sciences and Nutraceutics; University of Florence; Via Ugo Schiff 6, 50019 Sesto Fiorentino Italy
| | - Jean-Maurice Mallet
- Département de Chimie; École Normale Supérieure-PSL Research University; 24 rue Lhomond, Sorbonne Universités, UPMC Univ Paris 06, LBM, 4 place Jussieu, CNRS, UMR 7203 LBM 75005 Paris France
| | - Anna Maria Papini
- French-Italian Interdepartmental Laboratory of Peptide and Protein Chemistry and Biology, PeptLab (http://www.peptlab.eu)
- PeptLab@UCP Platform and Laboratory of Chemical Biology EA4505; University of Cergy-Pontoise; 5 Mail Gay Lussac 95031 Cergy-Pontoise Cedex France
- Department of Chemistry ‘Ugo Schiff’; University of Florence; Via della Lastruccia 13 50019 Sesto Fiorentino Italy
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36
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Sharma J, Larson R, Lequin O, Khemtémourian L, Carlier L, Larsen K, Savage T, Loh A. Isomeric Model Antibiotic Peptides Differing Only in Charge Placement Adopt Different Helical Conformations. Biophys J 2015. [DOI: 10.1016/j.bpj.2014.11.3017] [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: 10/24/2022] Open
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37
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Vahdati L, Fanelli R, Bernadat G, Correia I, Lequin O, Ongeri S, Piarulli U. Synthesis and conformational studies of a stable peptidomimetic β-hairpin based on a bifunctional diketopiperazine turn inducer. NEW J CHEM 2015. [DOI: 10.1039/c4nj01437e] [Citation(s) in RCA: 6] [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] [Indexed: 11/21/2022]
Abstract
A new β-hairpin mimic foldamer based on the assembly of a reverse turn inducer, a peptidomimetic strand, and a tetrapeptide sequence was prepared, and its conformation in solution was assessed by NMR and computational investigations.
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Affiliation(s)
- Leila Vahdati
- Università degli Studi dell'Insubria
- Dipartimento di Scienza e Alta Tecnologia
- I-22100 Como
- Italy
- Molécules Fluorées et Chimie Médicinale
| | - Roberto Fanelli
- Università degli Studi dell'Insubria
- Dipartimento di Scienza e Alta Tecnologia
- I-22100 Como
- Italy
| | - Guillaume Bernadat
- Molécules Fluorées et Chimie Médicinale
- BioCIS UMR-CNRS 8076
- LabEx LERMIT
- Université Paris-Sud
- Faculté de Pharmacie
| | - Isabelle Correia
- Sorbonne Universités – UPMC Univ Paris 06
- Ecole Normale Supérieure – PSL Research University
- CNRS UMR 7203 LBM
- 75252 Paris Cedex 05
- France
| | - Olivier Lequin
- Sorbonne Universités – UPMC Univ Paris 06
- Ecole Normale Supérieure – PSL Research University
- CNRS UMR 7203 LBM
- 75252 Paris Cedex 05
- France
| | - Sandrine Ongeri
- Molécules Fluorées et Chimie Médicinale
- BioCIS UMR-CNRS 8076
- LabEx LERMIT
- Université Paris-Sud
- Faculté de Pharmacie
| | - Umberto Piarulli
- Università degli Studi dell'Insubria
- Dipartimento di Scienza e Alta Tecnologia
- I-22100 Como
- Italy
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38
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Carlier L, Joanne P, Khemtémourian L, Lacombe C, Nicolas P, El Amri C, Lequin O. Investigating the role of GXXXG motifs in helical folding and self-association of plasticins, Gly/Leu-rich antimicrobial peptides. Biophys Chem 2015; 196:40-52. [DOI: 10.1016/j.bpc.2014.09.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 09/16/2014] [Accepted: 09/19/2014] [Indexed: 12/24/2022]
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39
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Weirich J, Haight B, Lequin O, Khemtémourian L, Carlier L, Loh A. Modulation of the Interaction Between Detergent Micelles and Model Peptide Antibiotics by Varying the Peptide Charge Distribution. Biophys J 2015. [DOI: 10.1016/j.bpj.2014.11.3016] [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: 10/24/2022] Open
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40
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Abstract
The deposition of insoluble amyloid fibrils resulting from the aggregation of the human islet amyloid polypeptide (hIAPP) within the islet of Langerhans is a pathological feature of type 2 diabetes mellitus (T2DM). Increasing evidence indicates that biological membranes play a key role in amyloid aggregation, modulating among others the kinetics of amyloid formation, and being the target of toxic species generated during amyloid formation. In T2DM patients, elevated levels of cholesterol, an important determinant of the physical state of biological membranes, are observed in β-cells and are thought to directly impair β-cell function and insulin secretion. However, it is not known whether cholesterol enhances membrane-interaction or membrane-insertion of hIAPP. In this study, we investigated the effect of cholesterol incorporated in zwitterionic and anionic membranes. Our circular dichroism and liquid state NMR data reveal that 10-30% of cholesterol slightly affects the aggregational and conformational behaviour of hIAPP. Additional fluorescence results indicate that 10 and 20% of cholesterol slightly slow down the kinetics of oligomer and fibril formation while anionic lipids accelerate this kinetics. This behavior might be caused by differences in membrane insertion and therefore in membrane binding of hIAPP. The membrane binding affinity was evaluated using (1)H NMR experiments and our results show that the affinity of hIAPP for membranes containing cholesterol is significantly smaller than that for membranes containing anionic lipids. Furthermore, we found that hIAPP-induced membrane damage is synchronized to fibril formation in the absence and in the presence of cholesterol.
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Affiliation(s)
- Lucie Caillon
- Sorbonne Universités , UPMC Univ Paris 06, Laboratoire des Biomolécules , Paris, France
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41
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Auberger N, Pisa MD, Larregola M, Chassaing G, Peroni E, Lavielle S, Papini AM, Lequin O, Mallet JM. Glaser oxidative coupling on peptides: Stabilization of β-turn structure via a 1,3-butadiyne constraint. Bioorg Med Chem 2014; 22:6924-32. [DOI: 10.1016/j.bmc.2014.10.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/13/2014] [Accepted: 10/15/2014] [Indexed: 11/30/2022]
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42
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Kaffy J, Brinet D, Soulier JL, Khemtémourian L, Lequin O, Taverna M, Crousse B, Ongeri S. Structure–activity relationships of sugar-based peptidomimetics as modulators of amyloid β-peptide early oligomerization and fibrillization. Eur J Med Chem 2014; 86:752-8. [DOI: 10.1016/j.ejmech.2014.09.031] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 09/05/2014] [Accepted: 09/08/2014] [Indexed: 12/19/2022]
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43
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Asgatay S, Champion C, Marloie G, Drujon T, Senamaud-Beaufort C, Ceccaldi A, Erdmann A, Rajavelu A, Schambel P, Jeltsch A, Lequin O, Karoyan P, Arimondo PB, Guianvarc’h D. Synthesis and Evaluation of Analogues of N-Phthaloyl-l-tryptophan (RG108) as Inhibitors of DNA Methyltransferase 1. J Med Chem 2014; 57:421-34. [DOI: 10.1021/jm401419p] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Saâdia Asgatay
- Laboratoire des BioMolécules,
UMR 7203, Université Pierre et Marie Curie-Paris 6, ENS, CNRS, 4, Place Jussieu, 75252 Paris Cedex 05, France
| | - Christine Champion
- MNHN CNRS
UMR 7196, INSERM U565, 43 Rue Cuvier, 75005 Paris, France
- UPMC Université Paris 6, 75005 Paris, France
| | - Gaël Marloie
- Laboratoire des BioMolécules,
UMR 7203, Université Pierre et Marie Curie-Paris 6, ENS, CNRS, 4, Place Jussieu, 75252 Paris Cedex 05, France
| | - Thierry Drujon
- Laboratoire des BioMolécules,
UMR 7203, Université Pierre et Marie Curie-Paris 6, ENS, CNRS, 4, Place Jussieu, 75252 Paris Cedex 05, France
| | | | - Alexandre Ceccaldi
- MNHN CNRS
UMR 7196, INSERM U565, 43 Rue Cuvier, 75005 Paris, France
- UPMC Université Paris 6, 75005 Paris, France
| | - Alexandre Erdmann
- USR ETaC CNRS-Pierre Fabre No. 3388, CRDPF BP 13562, 3 Avenue Hubert Curien, 31100 Toulouse, France
| | - Arumugam Rajavelu
- Institute of Biochemistry, Faculty of Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Philippe Schambel
- Institut de Recherche Pierre
Fabre, Centre de Recherche Pierre Fabre, 17 Rue Jean Moulin, 81 106, Castres Cedex, France
| | - Albert Jeltsch
- Institute of Biochemistry, Faculty of Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany
| | - Olivier Lequin
- Laboratoire des BioMolécules,
UMR 7203, Université Pierre et Marie Curie-Paris 6, ENS, CNRS, 4, Place Jussieu, 75252 Paris Cedex 05, France
| | - Philippe Karoyan
- Laboratoire des BioMolécules,
UMR 7203, Université Pierre et Marie Curie-Paris 6, ENS, CNRS, 4, Place Jussieu, 75252 Paris Cedex 05, France
| | - Paola B. Arimondo
- MNHN CNRS
UMR 7196, INSERM U565, 43 Rue Cuvier, 75005 Paris, France
- USR ETaC CNRS-Pierre Fabre No. 3388, CRDPF BP 13562, 3 Avenue Hubert Curien, 31100 Toulouse, France
| | - Dominique Guianvarc’h
- Laboratoire des BioMolécules,
UMR 7203, Université Pierre et Marie Curie-Paris 6, ENS, CNRS, 4, Place Jussieu, 75252 Paris Cedex 05, France
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Caillon L, Killian JA, Lequin O, Khemtémourian L. Biophysical investigation of the membrane-disrupting mechanism of the antimicrobial and amyloid-like peptide dermaseptin S9. PLoS One 2013; 8:e75528. [PMID: 24146759 PMCID: PMC3795727 DOI: 10.1371/journal.pone.0075528] [Citation(s) in RCA: 37] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 08/14/2013] [Indexed: 12/16/2022] Open
Abstract
Dermaseptin S9 (Drs S9) is an atypical cationic antimicrobial peptide with a long hydrophobic core and with a propensity to form amyloid-like fibrils. Here we investigated its membrane interaction using a variety of biophysical techniques. Rather surprisingly, we found that Drs S9 induces efficient permeabilisation in zwitterionic phosphatidylcholine (PC) vesicles, but not in anionic phosphatidylglycerol (PG) vesicles. We also found that the peptide inserts more efficiently in PC than in PG monolayers. Therefore, electrostatic interactions between the cationic Drs S9 and anionic membranes cannot explain the selectivity of the peptide towards bacterial membranes. CD spectroscopy, electron microscopy and ThT fluorescence experiments showed that the peptide adopts slightly more β-sheet and has a higher tendency to form amyloid-like fibrils in the presence of PC membranes as compared to PG membranes. Thus, induction of leakage may be related to peptide aggregation. The use of a pre-incorporation protocol to reduce peptide/peptide interactions characteristic of aggregates in solution resulted in more α-helix formation and a more pronounced effect on the cooperativity of the gel-fluid lipid phase transition in all lipid systems tested. Calorimetric data together with 2H- and 31P-NMR experiments indicated that the peptide has a significant impact on the dynamic organization of lipid bilayers, albeit slightly less for zwitterionic than for anionic membranes. Taken together, our data suggest that in particular in membranes of zwitterionic lipids the peptide binds in an aggregated state resulting in membrane leakage. We propose that also the antimicrobial activity of Drs S9 may be a result of binding of the peptide in an aggregated state, but that specific binding and aggregation to bacterial membranes is regulated not by anionic lipids but by as yet unknown factors.
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Affiliation(s)
- Lucie Caillon
- UPMC Univ Paris 06, UMR 7203 CNRS-UPMC-ENS, Laboratoire des Biomolécules, Paris, France
| | - J. Antoinette Killian
- Research Group Membrane Biochemistry & Biophysics, Bijvoet Center and Institute of Biomembranes, Utrecht University, Utrecht, The Netherlands
| | - Olivier Lequin
- UPMC Univ Paris 06, UMR 7203 CNRS-UPMC-ENS, Laboratoire des Biomolécules, Paris, France
- * E-mail: (LK); (OL)
| | - Lucie Khemtémourian
- UPMC Univ Paris 06, UMR 7203 CNRS-UPMC-ENS, Laboratoire des Biomolécules, Paris, France
- * E-mail: (LK); (OL)
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Caillon L, Lequin O, Khemtémourian L. Evaluation of membrane models and their composition for islet amyloid polypeptide-membrane aggregation. Biochim Biophys Acta 2013; 1828:2091-8. [PMID: 23707907 DOI: 10.1016/j.bbamem.2013.05.014] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 04/26/2013] [Accepted: 05/13/2013] [Indexed: 01/01/2023]
Abstract
Human islet amyloid polypeptide (IAPP) forms amyloid fibrils in the pancreatic islets of patients suffering from type 2 diabetes mellitus (T2DM). The formation of IAPP fibrils has been shown to cause membrane damage which most likely is responsible for the death of pancreatic islet β-cells during the pathogenesis of T2DM. Several studies have demonstrated a clear interaction between IAPP and lipid membranes. However the effect of different lipid compositions and of various membrane mimetics (including micelles, bicelles, SUV and LUV) on fibril formation kinetics and fibril morphology has not yet systematically been analysed. Here we report that the interaction of IAPP with various membrane models promoted different processes of fibril formation. Our data reveal that in SDS and DPC micelles, IAPP adopts a stable α-helical structure for several days, suggesting that the micelle models may stabilize monomeric or small oligomeric species of IAPP. In contrast, zwitterionic DMPC/DHPC bicelles and DOPC SUV accelerate the fibril formation compared to zwitterionic DOPC LUV, indicating that the size of the membrane model and its curvature influence the fibrillation process. Negatively charged membranes decrease the lag-time of the fibril formation kinetics while phosphatidylethanolamine and cholesterol have an opposite effect, probably due to the modulation of the physical properties of the membrane and/or due to direct interactions with IAPP within the membrane core. Finally, our results show that the modulation of lipid composition influences not only the growth of fibrils at the membrane surface but also the interactions of β-sheet oligomers with membranes.
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Key Words
- 1,1,1,3,3,3-hexafluoro-2-propanol
- 1,2-dihexanoyl-sn-glycero-3-phosphocholine
- 1,2-dimyristoyl-sn-glycero-3-phosphocholine
- 1,2-dioleoyl-sn-glycero-3-phospho-(1′-rac-glycerol)
- 1,2-dioleoyl-sn-glycero-3-phospho-L-serine
- 1,2-dioleoyl-sn-glycero-3-phosphocholine
- 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine
- 1,2-dipalmitoyl-sn-glycero-3-phosphocholine
- 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine
- Aggregation kinetics
- Amyloid
- CD
- Chol
- DHPC
- DMPC
- DMSO
- DOPC
- DOPE
- DOPG
- DOPS
- DPC
- DPPC
- Fibril morphology
- HFIP
- IAPP
- LUV
- Model membranes (LUV SUV, bicelles, micelles)
- POPC
- Phospholipid
- SDS
- SM
- ThT
- Thioflavin T
- cholesterol
- circular dichroism
- dimethyl sulfoxide
- dodecyl phosphocholine
- human Islet Amyloid Polypeptide
- large unilamellar vesicle
- sodium dodecyl sulphate
- sphingomyelin
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Affiliation(s)
- Lucie Caillon
- UPMC Univ Paris 06, UMR 7203 CNRS-UPMC-ENS, Laboratoire des Biomolécules, 4 place Jussieu, 75005 Paris, France
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Fonvielle M, Le Du MH, Lequin O, Lecoq A, Jacquet M, Thai R, Dubois S, Grach G, Gondry M, Belin P. Substrate and reaction specificity of Mycobacterium tuberculosis cytochrome P450 CYP121: insights from biochemical studies and crystal structures. J Biol Chem 2013; 288:17347-59. [PMID: 23620594 DOI: 10.1074/jbc.m112.443853] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cytochrome P450 CYP121 is essential for the viability of Mycobacterium tuberculosis. Studies in vitro show that it can use the cyclodipeptide cyclo(l-Tyr-l-Tyr) (cYY) as a substrate. We report an investigation of the substrate and reaction specificities of CYP121 involving analysis of the interaction between CYP121 and 14 cYY analogues with various modifications of the side chains or the diketopiperazine (DKP) ring. Spectral titration experiments show that CYP121 significantly bound only cyclodipeptides with a conserved DKP ring carrying two aryl side chains in l-configuration. CYP121 did not efficiently or selectively transform any of the cYY analogues tested, indicating a high specificity for cYY. The molecular determinants of this specificity were inferred from both crystal structures of CYP121-analog complexes solved at high resolution and solution NMR spectroscopy of the analogues. Bound cYY or its analogues all displayed a similar set of contacts with CYP121 residues Asn(85), Phe(168), and Trp(182). The propensity of the cYY tyrosyl to point toward Arg(386) was dependent on the presence of the DKP ring that limits the conformational freedom of the ligand. The correct positioning of the hydroxyl of this tyrosyl was essential for conversion of cYY. Thus, the specificity of CYP121 results from both a restricted binding specificity and a fine-tuned P450 substrate relationship. These results document the catalytic mechanism of CYP121 and improve our understanding of its function in vivo. This work contributes to progress toward the design of inhibitors of this essential protein of M. tuberculosis that could be used for antituberculosis therapy.
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Affiliation(s)
- Matthieu Fonvielle
- Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), iBiTec-S, Service d'Ingénierie Moléculaire des Protéines, 91191 Gif-sur-Yvette Cedex, France
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Keita M, De Bona R, Santos MD, Lequin O, Ongeri S, Milcent T, Crousse B. Access to novel amino trifluoromethyl cyclopropane carboxylic acid derivatives. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.02.012] [Citation(s) in RCA: 14] [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] [Indexed: 11/24/2022]
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Mann S, Eveleigh L, Lequin O, Ploux O. A microplate fluorescence assay for DAPA aminotransferase by detection of the vicinal diamine 7,8-diaminopelargonic acid. Anal Biochem 2013; 432:90-6. [DOI: 10.1016/j.ab.2012.09.038] [Citation(s) in RCA: 8] [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] [Received: 07/29/2012] [Revised: 09/26/2012] [Accepted: 09/29/2012] [Indexed: 10/27/2022]
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Caumes C, Delsuc N, Azza RB, Correia I, Chemla F, Ferreira F, Carlier L, Luna AP, Moumné R, Lequin O, Karoyan P. Homooligomers of substituted prolines and β-prolines: syntheses and secondary structure investigation. NEW J CHEM 2013. [DOI: 10.1039/c3nj00127j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Bechara C, Pallerla M, Zaltsman Y, Burlina F, Alves ID, Lequin O, Sagan S. Tryptophan within basic peptide sequences triggers glycosaminoglycan‐dependent endocytosis. FASEB J 2012; 27:738-49. [DOI: 10.1096/fj.12-216176] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chérine Bechara
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Manjula Pallerla
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Yefim Zaltsman
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Fabienne Burlina
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Isabel D. Alves
- Chimie et Biologie Des Membranes et Des Nanoobjets (CBMN)UMR 5248, CNRSPessacFrance
| | - Olivier Lequin
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
| | - Sandrine Sagan
- Université Pierre et Marie Curie (UPMC), Université Paris 6Unité Mixte de Recherche (UMR) 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Centre National de la Recherche Scientifique (CNRS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
- Ecole Normale Supérieure (ENS)UMR 7203, Laboratoire des BioMolécules (LBM)ParisFrance
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