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Bobo TA, Robinson M, Tofade C, Sokolski‐Papkov M, Nichols P, Vorobiov S, Fu H. AAV gene replacement therapy for treating MPS IIIC: Facilitating bystander effects via EV-mRNA cargo. J Extracell Vesicles 2024; 13:e12464. [PMID: 38961538 PMCID: PMC11222166 DOI: 10.1002/jev2.12464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 05/22/2024] [Indexed: 07/05/2024] Open
Abstract
MPS IIIC is a lysosomal storage disease caused by mutations in heparan-α-glucosaminide N-acetyltransferase (HGSNAT), for which no treatment is available. Because HGSNAT is a trans-lysosomal-membrane protein, gene therapy for MPS IIIC needs to transduce as many cells as possible for maximal benefits. All cells continuously release extracellular vesicles (EVs) and communicate by exchanging biomolecules via EV trafficking. To address the unmet need, we developed a rAAV-hHGSNATEV vector with an EV-mRNA-packaging signal in the 3'UTR to facilitate bystander effects, and tested it in an in vitro MPS IIIC model. In human MPS IIIC cells, rAAV-hHGSNATEV enhanced HGSNAT mRNA and protein expression, EV-hHGSNAT-mRNA packaging, and cleared GAG storage. Importantly, incubation with EVs led to hHGSNAT protein expression and GAG contents clearance in recipient MPS IIIC cells. Further, rAAV-hHGSNATEV transduction led to the reduction of pathological EVs in MPS IIIC cells to normal levels, suggesting broader therapeutic benefits. These data demonstrate that incorporating the EV-mRNA-packaging signal into a rAAV-hHGSNAT vector enhances EV packaging of hHGSNAT-mRNA, which can be transported to non-transduced cells and translated into functional rHGSNAT protein, facilitating cross-correction of disease pathology. This study supports the therapeutic potential of rAAVEV for MPS IIIC, and broad diseases, without having to transduce every cell.
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Affiliation(s)
- Tierra A. Bobo
- Gene Therapy CenterChapel HillUSA
- Division of Genetics and Metabolism, Department of PediatricsSchool of MedicineChapel HillUSA
| | | | | | - Marina Sokolski‐Papkov
- Center for Nanotechnology in Drug Delivery, Division of Molecular Pharmaceutics, Eshelman School of PharmacyUniversity of North Carolina at Chapel HillChapel HillUSA
| | | | | | - Haiyan Fu
- Gene Therapy CenterChapel HillUSA
- Division of Genetics and Metabolism, Department of PediatricsSchool of MedicineChapel HillUSA
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2
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Foster D, Williams L, Arnold N, Larsen J. Therapeutic developments for neurodegenerative GM1 gangliosidosis. Front Neurosci 2024; 18:1392683. [PMID: 38737101 PMCID: PMC11082364 DOI: 10.3389/fnins.2024.1392683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/15/2024] [Indexed: 05/14/2024] Open
Abstract
GM1 gangliosidosis (GM1) is a rare but fatal neurodegenerative disease caused by dysfunction or lack of production of lysosomal enzyme, β-galactosidase, leading to accumulation of substrates. The most promising treatments for GM1, include enzyme replacement therapy (ERT), substrate reduction therapy (SRT), stem cell therapy and gene editing. However, effectiveness is limited for neuropathic GM1 due to the restrictive nature of the blood-brain barrier (BBB). ERT and SRT alleviate substrate accumulation through exogenous supplementation over the patient's lifetime, while gene editing could be curative, fixing the causative gene, GLB1, to enable endogenous enzyme activity. Stem cell therapy can be a combination of both, with ex vivo gene editing of cells to cause the production of enzymes. These approaches require special considerations for brain delivery, which has led to novel formulations. A few therapeutic interventions have progressed to early-phase clinical trials, presenting a bright outlook for improved clinical management for GM1.
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Affiliation(s)
- Dorian Foster
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC, United States
| | - Lucian Williams
- Department of Bioengineering, Clemson University, Clemson, SC, United States
| | - Noah Arnold
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC, United States
| | - Jessica Larsen
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC, United States
- Department of Bioengineering, Clemson University, Clemson, SC, United States
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3
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Hosseini K, Fallahi J, Tabei SMB, Razban V. Gene therapy approaches for GM1 gangliosidosis: Focus on animal and cellular studies. Cell Biochem Funct 2023; 41:1093-1105. [PMID: 38018878 DOI: 10.1002/cbf.3887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 11/30/2023]
Abstract
One of the most important inherited metabolic disorders is GM1 gangliosidosis, which is a progressive neurological disorder. The main cause of this disease is a genetic defect in the enzyme β-galactosidase due to a mutation in the glb1 gene. Lack of this enzyme in cells (especially neurons) leads to the accumulation of ganglioside substrate in nerve tissues, followed by three clinical forms of GM1 disease (neonatal, juvenile, and adult variants). Genetically, many mutations occur in the exons of the glb1 gene, such as exons 2, 6, 15, and 16, so the most common ones reported in scientific studies include missense/nonsense mutations. Therefore, many studies have examined the genotype-phenotype relationships of this disease and subsequently using gene therapy techniques have been able to reduce the complications of the disease and alleviate the signs and symptoms of the disease. In this regard, the present article reviews the general features of GM1 gangliosidosis and its mutations, as well as gene therapy studies and animal and human models of the disease.
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Affiliation(s)
- Kamran Hosseini
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jafar Fallahi
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyed M B Tabei
- Department of Medical Genetics, Shiraz University of Medical Sciences, Shiraz, Iran
- Comprehensive Medical Genetic Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Razban
- Department of Molecular Medicine, Faculty of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Stem Cells Technology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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4
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Ling Q, Herstine JA, Bradbury A, Gray SJ. AAV-based in vivo gene therapy for neurological disorders. Nat Rev Drug Discov 2023; 22:789-806. [PMID: 37658167 DOI: 10.1038/s41573-023-00766-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/06/2023] [Indexed: 09/03/2023]
Abstract
Recent advancements in gene supplementation therapy are expanding the options for the treatment of neurological disorders. Among the available delivery vehicles, adeno-associated virus (AAV) is often the favoured vector. However, the results have been variable, with some trials dramatically altering the course of disease whereas others have shown negligible efficacy or even unforeseen toxicity. Unlike traditional drug development with small molecules, therapeutic profiles of AAV gene therapies are dependent on both the AAV capsid and the therapeutic transgene. In this rapidly evolving field, numerous clinical trials of gene supplementation for neurological disorders are ongoing. Knowledge is growing about factors that impact the translation of preclinical studies to humans, including the administration route, timing of treatment, immune responses and limitations of available model systems. The field is also developing potential solutions to mitigate adverse effects, including AAV capsid engineering and designs to regulate transgene expression. At the same time, preclinical research is addressing new frontiers of gene supplementation for neurological disorders, with a focus on mitochondrial and neurodevelopmental disorders. In this Review, we describe the current state of AAV-mediated neurological gene supplementation therapy, including critical factors for optimizing the safety and efficacy of treatments, as well as unmet needs in this field.
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Affiliation(s)
- Qinglan Ling
- Department of Paediatrics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Jessica A Herstine
- Center for Gene Therapy, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Paediatrics, The Ohio State University, Columbus, OH, USA
| | - Allison Bradbury
- Center for Gene Therapy, Nationwide Children's Hospital, Columbus, OH, USA
- Department of Paediatrics, The Ohio State University, Columbus, OH, USA
| | - Steven J Gray
- Department of Paediatrics, UT Southwestern Medical Center, Dallas, TX, USA.
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5
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Kell P, Sidhu R, Qian M, Mishra S, Nicoli ER, D'Souza P, Tifft CJ, Gross AL, Gray-Edwards HL, Martin DR, Sena-Esteves M, Dietzen DJ, Singh M, Luo J, Schaffer JE, Ory DS, Jiang X. A pentasaccharide for monitoring pharmacodynamic response to gene therapy in GM1 gangliosidosis. EBioMedicine 2023; 92:104627. [PMID: 37267847 PMCID: PMC10277919 DOI: 10.1016/j.ebiom.2023.104627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 04/29/2023] [Accepted: 05/10/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND GM1 gangliosidosis is a rare, fatal, neurodegenerative disease caused by mutations in the GLB1 gene and deficiency in β-galactosidase. Delay of symptom onset and increase in lifespan in a GM1 gangliosidosis cat model after adeno-associated viral (AAV) gene therapy treatment provide the basis for AAV gene therapy trials. The availability of validated biomarkers would greatly improve assessment of therapeutic efficacy. METHODS The liquid chromatography-tandem mass spectrometry (LC-MS/MS) was used to screen oligosaccharides as potential biomarkers for GM1 gangliosidosis. The structures of pentasaccharide biomarkers were determined with mass spectrometry, as well as chemical and enzymatic degradations. Comparison of LC-MS/MS data of endogenous and synthetic compounds confirmed the identification. The study samples were analyzed with fully validated LC-MS/MS methods. FINDINGS We identified two pentasaccharide biomarkers, H3N2a and H3N2b, that were elevated more than 18-fold in patient plasma, cerebrospinal fluid (CSF), and urine. Only H3N2b was detectable in the cat model, and it was negatively correlated with β-galactosidase activity. Following intravenous (IV) AAV9 gene therapy treatment, reduction of H3N2b was observed in central nervous system, urine, plasma, and CSF samples from the cat model and in urine, plasma, and CSF samples from a patient. Reduction of H3N2b accurately reflected normalization of neuropathology in the cat model and improvement of clinical outcomes in the patient. INTERPRETATIONS These results demonstrate that H3N2b is a useful pharmacodynamic biomarker to evaluate the efficacy of gene therapy for GM1 gangliosidosis. H3N2b will facilitate the translation of gene therapy from animal models to patients. FUNDING This work was supported by grants U01NS114156, R01HD060576, ZIAHG200409, and P30 DK020579 from the National Institutes of Health (NIH) and a grant from National Tay-Sachs and Allied Diseases Association Inc.
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Affiliation(s)
- Pamela Kell
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Rohini Sidhu
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Mingxing Qian
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Sonali Mishra
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Elena-Raluca Nicoli
- Medical Genetics Branch and Office of the Clinical Director, NHGRI, NIH, Bethesda, MD 20892, USA
| | - Precilla D'Souza
- Medical Genetics Branch and Office of the Clinical Director, NHGRI, NIH, Bethesda, MD 20892, USA; Office of the Clinical Director, NHGRI, NIH, Bethesda, MD, 20892, USA
| | - Cynthia J Tifft
- Medical Genetics Branch and Office of the Clinical Director, NHGRI, NIH, Bethesda, MD 20892, USA; Office of the Clinical Director, NHGRI, NIH, Bethesda, MD, 20892, USA
| | - Amanda L Gross
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL, 36849, USA
| | - Heather L Gray-Edwards
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL, 36849, USA
| | - Douglas R Martin
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL, 36849, USA
| | - Miguel Sena-Esteves
- Department of Neurology, Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Dennis J Dietzen
- Department of Pathology & Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Manmilan Singh
- Department of Chemistry, Washington University, St. Louis, MO, 63130, USA
| | - Jingqin Luo
- Department of Surgery, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Jean E Schaffer
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Daniel S Ory
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Xuntian Jiang
- Department of Medicine, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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Leclerc D, Goujon L, Jaillard S, Nouyou B, Cluzeau L, Damaj L, Dubourg C, Etcheverry A, Levade T, Froissart R, Dréano S, Guillory X, Eriksson LA, Launay E, Mouriaux F, Belaud-Rotureau MA, Odent S, Gilot D. Gene Editing Corrects In Vitro a G > A GLB1 Transition from a GM1 Gangliosidosis Patient. CRISPR J 2023; 6:17-31. [PMID: 36629845 PMCID: PMC9986017 DOI: 10.1089/crispr.2022.0045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Ganglioside-monosialic acid (GM1) gangliosidosis, a rare autosomal recessive disorder, is frequently caused by deleterious single nucleotide variants (SNVs) in GLB1 gene. These variants result in reduced β-galactosidase (β-gal) activity, leading to neurodegeneration associated with premature death. Currently, no effective therapy for GM1 gangliosidosis is available. Three ongoing clinical trials aim to deliver a functional copy of the GLB1 gene to stop disease progression. In this study, we show that 41% of GLB1 pathogenic SNVs can be replaced by adenine base editors (ABEs). Our results demonstrate that ABE efficiently corrects the pathogenic allele in patient-derived fibroblasts, restoring therapeutic levels of β-gal activity. Off-target DNA analysis did not detect off-target editing activity in treated patient's cells, except a bystander edit without consequences on β-gal activity based on 3D structure bioinformatics predictions. Altogether, our results suggest that gene editing might be an alternative strategy to cure GM1 gangliosidosis.
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Affiliation(s)
| | - Louise Goujon
- CHU Rennes, Service de Génétique Clinique, Centre de Référence Maladies Rares CLAD-Ouest, FHU GenOMEDS, ERN ITHACA, Hôpital Sud, Rennes, France
| | - Sylvie Jaillard
- INSERM, EHESP, IRSET-UMR_S, 1085, Université Rennes 1, Rennes, France.,Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Bénédicte Nouyou
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Laurence Cluzeau
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Léna Damaj
- Department of Pediatrics, Competence Center of Inherited Metabolic Disorders, Rennes Hospital, Rennes, France
| | - Christèle Dubourg
- Laboratoire de Génétique Moléculaire et Génomique, Centre Hospitalier Universitaire de Rennes, Rennes, France.,Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes), UMR 6290, ERL U1305, Rennes, France
| | - Amandine Etcheverry
- Laboratoire de Génétique Moléculaire et Génomique, Centre Hospitalier Universitaire de Rennes, Rennes, France
| | - Thierry Levade
- Laboratoire de Biochimie, CHU de Toulouse, Pôle biologie, Institut Fédératif de Biologie, Toulouse, France
| | - Roseline Froissart
- CHU Lyon HCL, LBMMS-Service Biochimie et Biologie Moléculaire, UM Pathologies Héréditaires du Métabolisme et du Globule Rouge, Bron, France
| | - Stéphane Dréano
- Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes), UMR 6290, ERL U1305, Rennes, France
| | - Xavier Guillory
- INSERM U1242, OSS, Univ Rennes, Rennes, France.,Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, Rennes, France
| | - Leif A Eriksson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Göteborg, Sweden
| | - Erika Launay
- Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Frédéric Mouriaux
- INSERM U1242, OSS, Univ Rennes, Rennes, France.,Department of Ophthalmology, CHU Rennes, Univ Rennes, Rennes, France
| | - Marc-Antoine Belaud-Rotureau
- INSERM, EHESP, IRSET-UMR_S, 1085, Université Rennes 1, Rennes, France.,Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
| | - Sylvie Odent
- CHU Rennes, Service de Génétique Clinique, Centre de Référence Maladies Rares CLAD-Ouest, FHU GenOMEDS, ERN ITHACA, Hôpital Sud, Rennes, France.,Univ Rennes, CNRS, IGDR (Institut de Génétique et Développement de Rennes), UMR 6290, ERL U1305, Rennes, France
| | - David Gilot
- INSERM U1242, OSS, Univ Rennes, Rennes, France.,Service de Cytogénétique et Biologie Cellulaire, CHU Rennes, Rennes, France
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7
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Heller G, Bradbury AM, Sands MS, Bongarzone ER. Preclinical studies in Krabbe disease: A model for the investigation of novel combination therapies for lysosomal storage diseases. Mol Ther 2023; 31:7-23. [PMID: 36196048 PMCID: PMC9840155 DOI: 10.1016/j.ymthe.2022.09.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 08/16/2022] [Accepted: 09/28/2022] [Indexed: 11/05/2022] Open
Abstract
Krabbe disease (KD) is a lysosomal storage disease (LSD) caused by mutations in the galc gene. There are over 50 monogenetic LSDs, which largely impede the normal development of children and often lead to premature death. At present, there are no cures for LSDs and the available treatments are generally insufficient, short acting, and not without co-morbidities or long-term side effects. The last 30 years have seen significant advances in our understanding of LSD pathology as well as treatment options. Two gene therapy-based clinical trials, NCT04693598 and NCT04771416, for KD were recently started based on those advances. This review will discuss how our knowledge of KD got to where it is today, focusing on preclinical investigations, and how what was discovered may prove beneficial for the treatment of other LSDs.
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Affiliation(s)
- Gregory Heller
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, 808 S. Wood St M/C 512, Chicago, IL, USA.
| | - Allison M Bradbury
- Center for Gene Therapy, Research Institute at Nationwide Children's Hospital, Columbus, OH, USA; Abigail Wexner Research Institute Nationwide Children's Hospital Department of Pediatrics, The Ohio State University, Wexner Medical Center, Columbus, OH 43205, USA.
| | - Mark S Sands
- Department of Medicine, Washington University School of Medicine, 660 South Euclid Avenue Box 8007, St. Louis, MO, USA; Department of Genetics, Washington University School of Medicine, 660 South Euclid Avenue Box 8007, St. Louis, MO, USA.
| | - Ernesto R Bongarzone
- Department of Anatomy and Cell Biology, College of Medicine, University of Illinois at Chicago, 808 S. Wood St M/C 512, Chicago, IL, USA.
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Hocquemiller M, Giersch L, Mei X, Gross AL, Randle AN, Gray-Edwards HL, Hudson JA, Todeasa S, Stoica L, Martin DR, Sena-Esteves M, Aiach K, Laufer R. AAVrh10 vector corrects pathology in animal models of GM1 gangliosidosis and achieves widespread distribution in the CNS of nonhuman primates. Mol Ther Methods Clin Dev 2022; 27:281-292. [PMID: 36320411 PMCID: PMC9594110 DOI: 10.1016/j.omtm.2022.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 10/05/2022] [Indexed: 12/13/2022]
Abstract
GM1 gangliosidosis is a rare, inherited neurodegenerative disorder caused by mutations in the GLB1 gene, which encodes the lysosomal hydrolase acid β-galactosidase (β-gal). β-gal deficiency leads to toxic accumulation of GM1 ganglioside, predominantly in the central nervous system (CNS), resulting in progressive neurodegeneration. LYS-GM101 is an AAVrh.10-based gene therapy vector carrying the human GLB1 cDNA. The efficacy of intra-cerebrospinal fluid injection of LYS-GM101 analogs was demonstrated in GM1 mouse and cat models with widespread diffusion of β-gal and correction of GM1 ganglioside accumulation in the CNS without observable adverse effects. Clinical dose selection was performed, based on a good-laboratory-practice study, in nonhuman primates (NHPs) using the clinical LYS-GM101 vector. A broadly distributed increase of β-gal activity was observed in NHP brain 3 months after intra-cisterna magna injection of LYS-GM101 at 1.0 × 1012 vg/mL CSF and 4.0 × 1012 vg/mL CSF, with 20% and 60% increases compared with vehicle-treated animals, respectively. Histopathologic examination revealed asymptomatic adverse changes in the sensory pathways of the spinal cord and dorsal root ganglia in both sexes and at both doses. Taken as a whole, these pre-clinical data support the initiation of a clinical study with LYS-GM101 for the treatment of GM1 gangliosidosis.
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Affiliation(s)
- Michaël Hocquemiller
- Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France,Corresponding author Michaël Hocquemiller, Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France.
| | - Laura Giersch
- Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France
| | - Xin Mei
- Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France
| | - Amanda L. Gross
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL 36849, USA
| | - Ashley N. Randle
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL 36849, USA
| | - Heather L. Gray-Edwards
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL 36849, USA
| | - Judith A. Hudson
- Department of Clinical Sciences, Auburn University College of Veterinary Medicine, Auburn, AL 36849, USA
| | - Sophia Todeasa
- Department of Neurology, Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Lorelei Stoica
- Department of Neurology, Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Douglas R. Martin
- Scott-Ritchey Research Center, Auburn University College of Veterinary Medicine, Auburn, AL 36849, USA,Department of Anatomy, Physiology, and Pharmacology, Auburn University College of Veterinary Medicine, Auburn, AL 36849, USA
| | - Miguel Sena-Esteves
- Department of Neurology, Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01605, USA
| | - Karen Aiach
- Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France
| | - Ralph Laufer
- Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France,Corresponding author Ralph Laufer, Lysogene, 18–20 rue Jacques Dulud, 92200 Neuilly-sur-Seine, France.
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