期刊
GENOMICS
卷 90, 期 3, 页码 389-396出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ygeno.2007.05.012
关键词
familial dysautonomia; mRNA splicing; transgenic model
资金
- Intramural NIH HHS Funding Source: Medline
- NINDS NIH HHS [R01 NS036326, R01 NS036326-09, R01 NS036326-07A1, R01 NS036326-10, R01 NS036326-08] Funding Source: Medline
Familial dysautonomia (FD) is a severe hereditary sensory and autonomic neuropathy, and all patients with FD have a splice mutation in the IKBKAP gene. The FD splice mutation results in variable, tissue-specific skipping of exon 20 in IKBKAP rnRNA, which leads to reduced IKAP protein levels. The development of therapies for FD will require suitable mouse models for preclinical studies. In this study, we report the generation and characterization of a mouse model carrying the complete human IKBKAP locus with the FD IVS20+6T -> C splice mutation. We show that the mutant IKBKAP transgene is misspliced in this model in a tissue-specific manner that replicates the pattern seen in FD patient tissues. Creation of this humanized mouse is the first step toward development of a complex phenotypic model of FD. These transgenic mice are an ideal model system for testing the effectiveness of therapeutic agents that target the missplicing defect. Last, these mice will permit direct studies of tissue-specific splicing and the identification of regulatory factors that play a role in complex gene expression. (c) 2007 Elsevier Inc. All rights reserved.
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