PMID- 31289301 OWN - NLM STAT- MEDLINE DCOM- 20201027 LR - 20230107 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 9 IP - 1 DP - 2019 Jul 9 TI - CRISPR/Cas9 mediated generation of an ovine model for infantile neuronal ceroid lipofuscinosis (CLN1 disease). PG - 9891 LID - 10.1038/s41598-019-45859-9 [doi] LID - 9891 AB - 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. FAU - Eaton, S L AU - Eaton SL AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. FAU - Proudfoot, C AU - Proudfoot C AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. FAU - Lillico, S G AU - Lillico SG AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. FAU - Skehel, P AU - Skehel P AD - Centre for Discovery Brain Science, University of Edinburgh, Hugh Robson Building, Edinburgh, UK. AD - Euan MacDonald Centre for Motor Neurone Disease Research, University of Edinburgh, Edinburgh, UK. FAU - Kline, R A AU - Kline RA AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. FAU - Hamer, K AU - Hamer K AUID- ORCID: 0000-0002-6142-5366 AD - Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, UK. FAU - Rzechorzek, N M AU - Rzechorzek NM AUID- ORCID: 0000-0003-3209-5019 AD - Centre for Clinical Brain Sciences, University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh, UK. AD - Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Edinburgh, UK. FAU - Clutton, E AU - Clutton E AD - Wellcome Trust Critical Care Laboratory for Large Animals, Roslin Institute, Easter Bush, Edinburgh, UK. FAU - Gregson, R AU - Gregson R AD - Wellcome Trust Critical Care Laboratory for Large Animals, Roslin Institute, Easter Bush, Edinburgh, UK. FAU - King, T AU - King T AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. FAU - O'Neill, C A AU - O'Neill CA AD - BioMarin Pharmaceutical Inc, San Rafael, CA, USA. FAU - Cooper, J D AU - Cooper JD AD - Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, David Geffen School of Medicine, UCLA, Torrance, CA, USA. AD - Department of Pediatrics, Washington University School of Medicine, St Louis, MO, USA. FAU - Thompson, G AU - Thompson G AD - Centre for Discovery Brain Science, University of Edinburgh, Hugh Robson Building, Edinburgh, UK. FAU - Whitelaw, C B AU - Whitelaw CB AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. FAU - Wishart, T M AU - Wishart TM AD - The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, UK. T.M.Wishart@ed.ac.uk. AD - Euan MacDonald Centre for Motor Neurone Disease Research, University of Edinburgh, Edinburgh, UK. T.M.Wishart@ed.ac.uk. LA - eng GR - 096409/Z/11/Z/WT_/Wellcome Trust/United Kingdom GR - BBS/E/D/20251969/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom GR - BB/P013732/1/RCUK | Biotechnology and Biological Sciences Research Council (BBSRC)/International GR - MC_EX_MR/S022023/1/MRC_/Medical Research Council/United Kingdom GR - WT_/Wellcome Trust/United Kingdom GR - BB/J004316/1/RCUK | Biotechnology and Biological Sciences Research Council (BBSRC)/International GR - MR/S022023/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190709 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - EC 3.1.2.- (Thiolester Hydrolases) RN - EC 3.1.2.22 (palmitoyl-protein thioesterase) SB - IM MH - Animals MH - *CRISPR-Cas Systems MH - *Disease Models, Animal MH - Female MH - Male MH - *Mutation MH - Neuronal Ceroid-Lipofuscinoses/genetics/metabolism/*pathology MH - *Phenotype MH - Sheep MH - Thiolester Hydrolases/*antagonists & inhibitors/genetics PMC - PMC6616324 COIS- O'Neill CA is an employee of BioMarin Pharmaceutical Inc., San Rafael, CA, USA. TMW is an academic Editor for Scientific Reports. EDAT- 2019/07/11 06:00 MHDA- 2020/10/28 06:00 PMCR- 2019/07/09 CRDT- 2019/07/11 06:00 PHST- 2018/12/19 00:00 [received] PHST- 2019/06/12 00:00 [accepted] PHST- 2019/07/11 06:00 [entrez] PHST- 2019/07/11 06:00 [pubmed] PHST- 2020/10/28 06:00 [medline] PHST- 2019/07/09 00:00 [pmc-release] AID - 10.1038/s41598-019-45859-9 [pii] AID - 45859 [pii] AID - 10.1038/s41598-019-45859-9 [doi] PST - epublish SO - Sci Rep. 2019 Jul 9;9(1):9891. doi: 10.1038/s41598-019-45859-9.