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Mariot V, Joubert R, Marsollier AC, Hourdé C, Voit T, Dumonceaux J. A Deoxyribonucleic Acid Decoy Trapping DUX4 for the Treatment of Facioscapulohumeral Muscular Dystrophy. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 22:1191-1199. [PMID: 33312755 PMCID: PMC7701011 DOI: 10.1016/j.omtn.2020.10.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 10/13/2020] [Indexed: 12/29/2022]
Abstract
Facioscapulohumeral dystrophy (FSHD) is characterized by a loss of repressive epigenetic marks leading to the aberrant expression of the DUX4 transcription factor. In muscle, DUX4 acts as a poison protein though the induction of multiple downstream genes. So far, there is no therapeutic solution for FSHD. Because DUX4 is a transcription factor, we developed an original therapeutic approach, based on a DNA decoy trapping the DUX4 protein, preventing its binding to genomic DNA and thereby blocking the aberrant activation of DUX4’s transcriptional network. In vitro, transfection of a DUX4 decoy into FSHD myotubes reduced the expression of the DUX4 network genes. In vivo, both double-stand DNA DUX4 decoys and adeno-associated viruses (AAVs) carrying DUX4 binding sites reduced transcriptional activation of genes downstream of DUX4 in a DUX4-expressing mouse model. Our study demonstrates, both in vitro and in vivo, the feasibility of the decoy strategy and opens new avenues of research.
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Affiliation(s)
- Virginie Mariot
- NIHR GOSH Biomedical Research Centre, University College London, Great Ormond Street Institute of Child Health and Great Ormond Street Hospital NHS Trust, London WC1N 1EH, UK
| | - Romain Joubert
- NIHR GOSH Biomedical Research Centre, University College London, Great Ormond Street Institute of Child Health and Great Ormond Street Hospital NHS Trust, London WC1N 1EH, UK
| | - Anne-Charlotte Marsollier
- NIHR GOSH Biomedical Research Centre, University College London, Great Ormond Street Institute of Child Health and Great Ormond Street Hospital NHS Trust, London WC1N 1EH, UK
| | - Christophe Hourdé
- Inter-University Laboratory of Human Movement Biology (LIBM), EA7424 Université Savoie Mont Blanc, Campus Scientifique Technolac, 73376 Le Bourget du Lac Cedex, France
| | - Thomas Voit
- NIHR GOSH Biomedical Research Centre, University College London, Great Ormond Street Institute of Child Health and Great Ormond Street Hospital NHS Trust, London WC1N 1EH, UK
| | - Julie Dumonceaux
- NIHR GOSH Biomedical Research Centre, University College London, Great Ormond Street Institute of Child Health and Great Ormond Street Hospital NHS Trust, London WC1N 1EH, UK.,Northern Ireland Center for Stratified/Personalised Medicine, Biomedical Sciences Research Institute, Ulster University, Derry/Londonderry BT47 6SB, Northern Ireland, UK
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Falsini S, Di Cola E, In M, Giordani M, Borocci S, Ristori S. Complexation of short ds RNA/DNA oligonucleotides with Gemini micelles: a time resolved SAXS and computational study. Phys Chem Chem Phys 2018; 19:3046-3055. [PMID: 28079203 DOI: 10.1039/c6cp06475b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Gene therapy is based on nucleic acid delivery to pathogenic cells in order to modulate their gene expression. The most used non viral vectors are lipid-based nanoaggregates, which are safer than viral carriers and have been shown to assemble easily with both DNA and RNA. However, the transfection efficiency of non viral carriers still needs to be improved before intensive practise in clinical trials can be implemented. For this purpose, the in depth characterization of the complexes formed by nucleic acids and their transporters is of great relevance. In particular, information on the structure and assembly mechanism can be useful to improve our general knowledge of these artificial transfection agents. In this paper, the complexation mechanism of short interfering RNA and DNA molecules (siRNA and siDNA, respectively) with cationic micelles is investigated by combining small angle X-ray scattering experiments and molecular dynamics simulations. Micelles were obtained by Gemini surfactants with different spacer lengths (12-3-12, 12-6-12). The siRNA and siDNA used were double strand molecules characterized by the same length and homologous sequence, in order to perform a close comparison. We showed that complexes appear in solution immediately after mixing and, therefore, the investigation of complex formation requires fast experimental techniques, such as time resolved synchrotron SAXS (Tr-SAXS). The obtained systems had internal arrangement constituted by layers of squeezed micelles alternating the nucleic acids. Both SAXS and MD analyses allowed us to evaluate the mean size of complexes in the range of a few nanometers, with looser and less ordered stacking for the DNA containing aggregates.
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Affiliation(s)
- Sara Falsini
- Department of Chemistry "Ugo Shiff" & CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, FI, Italy
| | - Emanuela Di Cola
- European Synchrotron Radiation Facility (ESRF), 71 Avenue des martyrs 38000, Grenoble, France
| | - Martin In
- Laboratoire Charles Coloumb, UMR, 5221 CNRS-UM, Place Eugène Bataillon, F-34095 Montpellier Cedex 05, France
| | - Maria Giordani
- CNR-Istituto di Metodologie Chimiche, Area della Ricerca di Roma 1, Via Salaria km 29300, 00015 Monterotondo RM, Italy
| | - Stefano Borocci
- CNR-Istituto di Metodologie Chimiche, Area della Ricerca di Roma 1, Via Salaria km 29300, 00015 Monterotondo RM, Italy and Dipartimento per la Innovazione nei Sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università degli Studi della Tuscia, Largo dell'Università, snc 01100, Viterbo, Italy
| | - Sandra Ristori
- Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira 4, 50121, Firenze, Italy
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Arzel L, Dubreuil D, Dénès F, Silvestre V, Mathé-Allainmat M, Lebreton J. Synthesis of Ribonucleosidic Dimers with an Amide Linkage from d-Xylose. J Org Chem 2016; 81:10742-10758. [DOI: 10.1021/acs.joc.6b01822] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Laurence Arzel
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Didier Dubreuil
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Fabrice Dénès
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Virginie Silvestre
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Monique Mathé-Allainmat
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Jacques Lebreton
- Université de Nantes, CEISAM-UMR CNRS 6230, Faculté des Sciences et
des Techniques, 2 rue
de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
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Beyond classical derivatization: analyte ‘derivatives’ in the bioanalysis of endogenous and exogenous compounds. Bioanalysis 2015; 7:2501-13. [DOI: 10.4155/bio.15.171] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The analysis of endogenous and exogenous analytes in biological matrices presents several challenges to the bioanalyst. These analytes are often present at low concentrations, typically in complex matrices, and may have physicochemical properties that are not amenable to LC–MS analysis. The bioanalyst thus relies heavily on the formation of analyte derivatives for the efficient quantification of these compounds. These derivatives are also critically employed to derive information on the biology of living systems, potential drug or disease targets, and biomarkers of drug efficacy, safety, or disease progression. In this perspective, we demonstrate how analyte derivatives are applied in modern bioanalytical workflows and we discuss the potential use of these derivatives in the future.
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