Gómez-Escribano Ana Pilar, García-García Gema, Pérez-Santamarina Estela, Aller-Mañas Elena, Vázquez-Manrique Rafael Pascual, Millán-Salvador José María
Laboratory of Molecular, Cellular and Genomic Biomedicine, Instituto de Investigación Sanitaria La Fe, Valencia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain; Joint Unit for Rare Diseases IIS La Fe-CIPF, Valencia, Spain.
Laboratory of Molecular, Cellular and Genomic Biomedicine, Instituto de Investigación Sanitaria La Fe, Valencia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Valencia, Spain; Joint Unit for Rare Diseases IIS La Fe-CIPF, Valencia, Spain.
EBioMedicine. 2025 Jun;116:105751. doi: 10.1016/j.ebiom.2025.105751. Epub 2025 May 13.
Gene therapy has become a promising treatment for inherited retinal dystrophies (IRDs), but understanding the genetic mechanisms involved is essential for its success. Various approaches, such as gene augmentation and DNA/RNA-based therapies, have shown effectiveness in some clinical trials. However, gene augmentation is not effective for some dominant mutations and genome editing produces off-target effects. Here, we review safer and viable alternatives that are being evaluated in preclinical models and clinical trials to address this challenge. We propose a novel perspective based on protein-targeting therapies, which although promising, remain unexplored. We suggest that frameshift variants, which produce novel epitopes, may allow for the development of mutant protein targeting agents for selective protein degradation. This approach could be useful for dominant variants, where gene replacement is ineffective. By examining these approaches, we aim to guide more targeted and effective gene therapies for IRDs, offering potential treatments where current methods fall short.
基因疗法已成为治疗遗传性视网膜营养不良(IRD)的一种有前景的方法,但了解其中涉及的遗传机制对其成功至关重要。各种方法,如基因增强和基于DNA/RNA的疗法,在一些临床试验中已显示出有效性。然而,基因增强对某些显性突变无效,且基因组编辑会产生脱靶效应。在此,我们综述了正在临床前模型和临床试验中评估的更安全可行的替代方法,以应对这一挑战。我们提出了一种基于蛋白质靶向疗法的新观点,这种疗法虽有前景,但仍未得到充分探索。我们认为,产生新表位的移码变体可能有助于开发用于选择性蛋白质降解的突变蛋白靶向剂。这种方法对于基因替代无效的显性变体可能有用。通过研究这些方法,我们旨在为IRD指导更具针对性和有效性的基因疗法,在现有方法不足时提供潜在的治疗方案。
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