Nonsense suppression therapies in ocular genetic diseases.
Cell Mol Life Sci
; 72(10): 1931-8, 2015 May.
Article
em En
| MEDLINE
| ID: mdl-25651836
ABSTRACT
Premature termination codons (PTCs) are caused by nonsense mutations and this leads to either degradation of the mutant mRNA template by nonsense-mediated decay (NMD) or the production of a non-functional, truncated polypeptide. PTCs contribute significantly to inherited human diseases including ocular disorders. Nonsense suppression therapy allows readthrough of PTCs, thereby rescuing the production of a full-length functional protein. In this review, we highlight the mechanisms that are involved in discriminating normal translation termination from premature termination codons; the current understanding of nonsense-mediated mRNA decay models (NMD); the association and crosstalk between PTC and the underlying dynamic NMD process; and the suppression therapies that have been employed in nonsense-medicated ocular disease models. Defining the mechanistic complexity of PTC and NMD will be important to improve treatments of the numerous genetic disorders caused by PTC mutations.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Oftalmopatias Hereditárias
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Códon sem Sentido
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Degradação do RNAm Mediada por Códon sem Sentido
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Modelos Genéticos
Limite:
Humans
Idioma:
En
Revista:
Cell Mol Life Sci
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2015
Tipo de documento:
Article