CRISPR/Cas9 mediated generation of an ovine model for infantile neuronal ceroid lipofuscinosis (CLN1 disease)
| Autor: | Christopher Bruce Alexander Whitelaw, Jonathan D. Cooper, Gerard Thompson, Simon G. Lillico, K. Hamer, Tim King, Paul A. Skehel, E. Clutton, Sally L. Eaton, Christopher Proudfoot, Rachel A. Kline, Nina Marie Rzechorzek, Rachael Gregson, Charles A. O'Neill, Thomas M. Wishart |
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| Rok vydání: | 2019 |
| Předmět: |
Male
0301 basic medicine Pathology medicine.medical_specialty Science Infantile neuronal ceroid lipofuscinosis Genetic predisposition to disease Locus (genetics) Disease Biology Article 03 medical and health sciences 0302 clinical medicine Atrophy Neuronal Ceroid-Lipofuscinoses medicine Animals CRISPR Neurodegeneration Sheep Multidisciplinary Brain Mass PPT1 medicine.disease Phenotype Disease Models Animal 030104 developmental biology Mutation Medicine Female Thiolester Hydrolases CRISPR-Cas Systems 030217 neurology & neurosurgery |
| Zdroj: | Eaton, S, Proudfoot, C, Lillico, S, Skehel, P, Kline, R, Hamer, K, Rzechorzek, N, Clutton, R, Gregson, R, King, T, O'Neill, C A, Cooper, J D, Thompson, G, Whitelaw, C & Wishart, T 2019, ' CRISPR/Cas9 mediated generation of an ovine model for infantile neuronal ceroid lipofuscinosis (CLN1 disease) ', Scientific Reports, vol. 9, 9891 (2019) . https://doi.org/10.1038/s41598-019-45859-9 Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019) |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-019-45859-9 |
| Popis: | The neuronal ceroid lipofuscinoses (NCLs) are a group of devastating monogenetic lysosomal disorders that affect children and young adults with no cure or effective treatment currently available. One of the more severe infantile forms of the disease (INCL or CLN1 disease) is due to mutations in the palmitoyl-protein thioesterase 1 (PPT1) gene and severely reduces the child’s lifespan to approximately 9 years of age. In order to better translate the human condition than is possible in mice, we sought to produce a large animal model employing CRISPR/Cas9 gene editing technology. Three PPT1 homozygote sheep were generated by insertion of a disease-causing PPT1 (R151X) human mutation into the orthologous sheep locus. This resulted in a morphological, anatomical and biochemical disease phenotype that closely resembles the human condition. The homozygous sheep were found to have significantly reduced PPT1 enzyme activity and accumulate autofluorescent storage material, as is observed in CLN1 patients. Clinical signs included pronounced behavioral deficits as well as motor deficits and complete loss of vision, with a reduced lifespan of 17 ± 1 months at a humanely defined terminal endpoint. Magnetic resonance imaging (MRI) confirmed a significant decrease in motor cortical volume as well as increased ventricular volume corresponding with observed brain atrophy and a profound reduction in brain mass of 30% at necropsy, similar to alterations observed in human patients. In summary, we have generated the first CRISPR/Cas9 gene edited NCL model. This novel sheep model of CLN1 disease develops biochemical, gross morphological and in vivo brain alterations confirming the efficacy of the targeted modification and potential relevance to the human condition. |
| Databáze: | OpenAIRE |
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