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Genetic Modulation of RNA Splicing with a CRISPR-Guided Cytidine Deaminase.
Mol Cell ; 72(2): 380-394.e7, 2018 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-30293782
RNA splicing is a critical mechanism by which to modify transcriptome, and its dysregulation is the underlying cause of many human diseases. It remains challenging, however, to genetically modulate a splicing event in its native context. Here, we demonstrate that a CRISPR-guided cytidine deaminase (i.e., targeted-AID mediated mutagenesis [TAM]) can efficiently modulate various forms of mRNA splicing. By converting invariant guanines to adenines at either 5' or 3' splice sites (SS), TAM induces exon skipping, activation of alternative SS, switching between mutually exclusive exons, or targeted intron retention. Conversely, TAM promotes downstream exon inclusion by mutating cytidines into thymines at the polypyrimidine tract. Applying this approach, we genetically restored the open reading frame and dystrophin function of a mutant DMD gene in patient-derived induced pluripotent stem cells (iPSCs). Thus, the CRISPR-guided cytidine deaminase provides a versatile genetic platform to modulate RNA splicing and to correct mutations associated with aberrant splicing in human diseases.





Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Processamento de RNA / Citidina Desaminase / Repetições Palindrômicas Curtas Agrupadas e Regularmente Espaçadas Limite: Animais / Humanos Idioma: Inglês Revista: Mol Cell Assunto da revista: Biologia Molecular Ano de publicação: 2018 Tipo de documento: Artigo País de afiliação: China