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Moving a novel gene therapy paradigm to treat blindness to the market

Project description

Gene therapy for an inherited blindness disorder

The blindness disorder retinitis pigmentosa (adRP) is caused by autosomal dominant mutations in RHO, the gene that encodes the rhodopsin protein responsible for converting light into neuronal signals. The EU-funded inSight project proposes to develop a gene therapy approach that combines silencing of the gain-of-function mutations and the simultaneous replacement with a human wild-type copy of the RHO gene. To achieve this, researchers will employ a specific synthetic transcription factor with a zinc-finger scaffold previously shown to facilitate transcriptional repression. The ultimate goal is to commercialise this therapeutic intervention and bring it to the clinic to effectively cure patients with adRP.

Objective

At present therapies for inherited dominant disorders are not available, thus representing an urgent unmet medical and social need. The ERC Grant ALLELECHOKER enabled the PI to discover three modes to generate transcriptional repression by transcription factors (TFs) based on Zinc-finger scaffold: i- synthetic transcription factor (TF; Mussolino et al., EMBO Mol. Med. 2011 Mar;3(3):118-28; Botta S. et al. Elife. 2016 Mar 14;5), ii- synthetic DNA-binding protein (Botta S. et al. Elife. 2016 Mar 14;5) and iii- the ectopic expression of an endogenous TF (Botta S, et al. JCI Insight. 2017 Dec 21;2(24). Thus, the PI demonstrated that transcriptional repression by TFs embodies a novel therapeutically effective mode to treat the toxic effects of gain-of-function mutations causing incurable inherited dominant disorders. In particular, mutations in the RHODOPSIN gene can cause the blindness disorder autosomal dominant retinitis pigmentosa (adRP). The PI demonstrated safety and efficiency of RHODOPSIN gene transcriptional silencing in pre-clinical animal models by a specific synthetic transcriptional repressor (ZF6-DB) delivered to the retina by an adeno-associated virus (AAV) vector (AAV-ZF6-DB). Furthermore, within the ERC Grant ALLELECHOKER the PI showed that a single AAV vector containing two independent expression cassettes (AAV-ZF6-DB-hRHO), enables balanced silencing of RHODOPSIN by ZF6-DB and its simultaneous replacement with a human wild-type copy of the RHODOPSIN gene. The primary objective of the inSight ERC-PoC grant is to support AAV-ZF6-DB-hRHO clinical translation, with the final goal of bringing this therapeutic to patients suffering adRP through market authorization and commercialization.

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Programme(s)

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Topic(s)

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Funding Scheme

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ERC-POC - Proof of Concept Grant

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Call for proposal

Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.

(opens in new window) ERC-2018-PoC

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Host institution

UNIVERSITA DEGLI STUDI DI NAPOLI FEDERICO II
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 107 625,00
Address
CORSO UMBERTO I, 40
80138 Napoli
Italy

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Region
Sud Campania Napoli
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

€ 107 625,00

Beneficiaries (2)

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