Project description
Epigenome changes in the course of gene therapy in spinal muscular atrophy
Spinal muscular atrophy (SMA) is a neurodegenerative disorder in children, characterised by motor neuron loss. The causal gene, survival of motor neuron 1 (SMN1), is expressed in all cells and SMA affects many organ systems. Zolgensma is a recently approved AAV9-mediated SMN1gene therapy. The delivered AAV9- SMN1 has to mimic the native regulation of the genomic SMN1 for effective treatment. With funding from the Marie Skłodowska-Curie Actions programme, the EpiAAVTherapy project aims to understand the epigenome response to gene therapy in the case of SMA. The objectives include profiling of the epigenetic changes during disease progression and gene therapy in mice and evaluation of the role of various structures in the vector on the epigenetic regulation of AAV-delivered episomal DNA.
Objective
Spinal muscular atrophy (SMA) is a fatal neurodegenerative disorder in children, characterized by motor neuron loss and atrophy of muscle. However, SMA affects many organ systems, since the causal gene, SMN1, is expressed in all cells. Recently, an AAV9-mediated gene therapy, Zolgensma, was approved. However, challenges remain. To be effective, the systemically delivered AAV9- SMN1 needs to mimic the native regulation of the genomic SMN1. In fact, recent findings demonstrated that delivery of AAV-SMN1 under the control of the ubiquitous viral promoter CMV found in Zolgensma eventually caused death of neurons in a mouse model of SMA. To date, there has been no systematic categorization of how treatment with SMN1 is regulated in different tissues through development. Furthermore, little is understood about the chromatin changes that occur during SMA, how gene therapy impacts the long-term stability of patients epigenomes, or how the AAV-delivered DNA is epigenetically controlled over time. The goal of the proposed work is to understand how the epigenome reacts to gene therapy, using SMA as a model. To do so I will: i) profile the epigenetic changes during SMA disease progression in mice, before and after gene therapy, ii) evaluate the role of various promoter-enhancer structures in the vector on the epigenetic regulation of AAV-delivered episomal DNA and iii) test if endogenous promoter-enhancer combinations can be used to achieved a better tuning of the delivered gene. The proposed project combines the expertise of Dr. Piera Smeriglio in SMA models, neuromuscular disorders and gene therapy with my expertise in epigenetic profiling, gene regulation, functional genomics, and single-cell technologies. AAV gene therapies are poised to have a huge impact on rare diseases, a key priority of the Horizon Europe programme, making now a critical time to understand their effect on the epigenome and cell regulatory networks to increase the efficacy and safety of their use.
Fields of science (EuroSciVoc)
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CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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HORIZON.1.2 - Marie Skłodowska-Curie Actions (MSCA)
MAIN PROGRAMME
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Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships
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Call for proposal
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Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) HORIZON-MSCA-2022-PF-01
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75654 PARIS
France
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