Sensory and autonomic deficits in a new humanized mouse model of familial dysautonomia

Human Molecular Genetics
Elisabetta MoriniIoannis Dragatsis

Abstract

Familial dysautonomia (FD) is an autosomal recessive neurodegenerative disease that affects the development and survival of sensory and autonomic neurons. FD is caused by an mRNA splicing mutation in intron 20 of the IKBKAP gene that results in a tissue-specific skipping of exon 20 and a corresponding reduction of the inhibitor of kappaB kinase complex-associated protein (IKAP), also known as Elongator complex protein 1. To date, several promising therapeutic candidates for FD have been identified that target the underlying mRNA splicing defect, and increase functional IKAP protein. Despite these remarkable advances in drug discovery for FD, we lacked a phenotypic mouse model in which we could manipulate IKBKAP mRNA splicing to evaluate potential efficacy. We have, therefore, engineered a new mouse model that, for the first time, will permit to evaluate the phenotypic effects of splicing modulators and provide a crucial platform for preclinical testing of new therapies. This new mouse model, TgFD9; Ikbkap(Δ20/flox) was created by introducing the complete human IKBKAP transgene with the major FD splice mutation (TgFD9) into a mouse that expresses extremely low levels of endogenous Ikbkap (Ikbkap(Δ20/flox)). The TgFD9; Ikbkap(Δ20...Continue Reading

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Citations

Jun 19, 2016·Progress in Neurobiology·Lucy Norcliffe-KaufmannHoracio Kaufmann
Aug 26, 2016·Genetics and Molecular Biology·Paula Dietrich, Ioannis Dragatsis
Aug 3, 2016·Disease Models & Mechanisms·Mylène Hervé, El Chérif Ibrahim
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May 27, 2021·Osteoporosis International : a Journal Established As Result of Cooperation Between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA·G VahidiC M Heveran

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