期刊
DEVELOPMENTAL NEUROSCIENCE
卷 43, 期 3-4, 页码 253-261出版社
KARGER
DOI: 10.1159/000515845
关键词
Neurodevelopmental disorders; CRISPR; dCas9; Gene therapy
资金
- Associazione Gruppo Famiglie Dravet
- CARIPLO Foundation [2016-0532]
- Italian Ministry of Health [GR-2016-02363972]
- Telethon [GGP19249]
Brain development is a complex process, and alterations in this process may lead to neurodevelopmental disorders with characteristic symptoms. Recent research focuses on directly targeting the genetic causes of NDDs, with the development of various dCas9-based tools for therapeutic applications.
Brain development is a complex process that requires a series of precise and coordinated events to take place. When alterations in some of those events occur, neurodevelopmental disorders (NDDs) may appear, with their characteristic symptoms, including cognitive, social motor deficits, and epilepsy. While pharmacologic treatments have been the only therapeutic options for many years, more recently the research is turning to the direct removal of the underlying genetic cause of each specific NDD. This is possible thanks to the increased knowledge of genetic basis of those diseases and the enormous advances in genome-editing tools. Together with clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9-based strategies, there is a great development also of nuclease defective Cas9 (dCas9) tools that, with an extreme flexibility, allow the recruitment of specific protein functions to the desired genomic sites. In this work, we review dCas9-based tools and discuss all the published applications in the setting of therapeutic approaches for NDDs at the preclinical level. In particular, dCas9-based therapeutic strategies for Dravet syndrome, transcallosal dysconnectivity caused by mutations in C11orf46 gene, and Fragile X syndrome are presented and discussed. A direct comparison with other possible therapeutic strategies, such as classic gene replacement or CRISPR/Cas9-based strategies, is provided. We also highlight not only those aspects that constitute a clear advantage compared to previous strategies but also the main technical hurdles related to their applications that need to be overcome.
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