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Hum Mol Genet ; 31(11): 1776-1787, 2022 06 04.
Artigo em Inglês | MEDLINE | ID: mdl-34908112

RESUMO

Familial dysautonomia (FD) is an autosomal recessive neurodegenerative disease caused by a splicing mutation in the gene encoding Elongator complex protein 1 (ELP1, also known as IKBKAP). This mutation results in tissue-specific skipping of exon 20 with a corresponding reduction of ELP1 protein, predominantly in the central and peripheral nervous system. Although FD patients have a complex neurological phenotype caused by continuous depletion of sensory and autonomic neurons, progressive visual decline leading to blindness is one of the most problematic aspects of the disease, as it severely affects their quality of life. To better understand the disease mechanism as well as to test the in vivo efficacy of targeted therapies for FD, we have recently generated a novel phenotypic mouse model, TgFD9; IkbkapΔ20/flox. This mouse exhibits most of the clinical features of the disease and accurately recapitulates the tissue-specific splicing defect observed in FD patients. Driven by the dire need to develop therapies targeting retinal degeneration in FD, herein, we comprehensively characterized the progression of the retinal phenotype in this mouse, and we demonstrated that it is possible to correct ELP1 splicing defect in the retina using the splicing modulator compound (SMC) BPN-15477.


Assuntos
Disautonomia Familiar , Peptídeos e Proteínas de Sinalização Intracelular , Doenças Neurodegenerativas , Doenças do Nervo Óptico , Células Ganglionares da Retina , Animais , Modelos Animais de Doenças , Disautonomia Familiar/patologia , Humanos , Camundongos , Doenças Neurodegenerativas/patologia , Doenças do Nervo Óptico/patologia , Células Ganglionares da Retina/patologia
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