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Sudria-Lopez E, Koppers M, de Wit M, van der Meer C, Westeneng HJ, Zundel CAC, Youssef SA, Harkema L, de Bruin A, Veldink JH, van den Berg LH, Pasterkamp RJ. Full ablation of C9orf72 in mice causes immune system-related pathology and neoplastic events but no motor neuron defects. Acta Neuropathol 2016; 132:145-7. [PMID: 27206760 PMCID: PMC4911370 DOI: 10.1007/s00401-016-1581-x] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 05/11/2016] [Accepted: 05/11/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Emma Sudria-Lopez
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands
| | - Max Koppers
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CX, Utrecht, The Netherlands
| | - Marina de Wit
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands
| | - Christiaan van der Meer
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands
| | - Henk-Jan Westeneng
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CX, Utrecht, The Netherlands
| | - Caroline A C Zundel
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands
| | - Sameh A Youssef
- Department of Pathobiology, Faculty of Veterinary Medicine, Dutch Molecular Pathology Center, Utrecht University, 3584 CL, Utrecht, The Netherlands
| | - Liesbeth Harkema
- Department of Pathobiology, Faculty of Veterinary Medicine, Dutch Molecular Pathology Center, Utrecht University, 3584 CL, Utrecht, The Netherlands
| | - Alain de Bruin
- Department of Pathobiology, Faculty of Veterinary Medicine, Dutch Molecular Pathology Center, Utrecht University, 3584 CL, Utrecht, The Netherlands
- Division of Molecular Genetics, Department of Pediatrics, University Medical Center Groningen, 9713 AV, Groningen, The Netherlands
| | - Jan H Veldink
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CX, Utrecht, The Netherlands
| | - Leonard H van den Berg
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, 3584 CX, Utrecht, The Netherlands
| | - R Jeroen Pasterkamp
- Department of Translational Neuroscience, Brain Center Rudolf Magnus, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands.
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Koppers M, Blokhuis AM, Westeneng HJ, Terpstra ML, Zundel CAC, Vieira de Sá R, Schellevis RD, Waite AJ, Blake DJ, Veldink JH, van den Berg LH, Pasterkamp RJ. C9orf72 ablation in mice does not cause motor neuron degeneration or motor deficits. Ann Neurol 2015; 78:426-38. [PMID: 26044557 PMCID: PMC4744979 DOI: 10.1002/ana.24453] [Citation(s) in RCA: 198] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 05/18/2015] [Accepted: 05/31/2015] [Indexed: 12/14/2022]
Abstract
Objective How hexanucleotide (GGGGCC) repeat expansions in C9ORF72 cause amyotrophic lateral sclerosis (ALS) remains poorly understood. Both gain‐ and loss‐of‐function mechanisms have been proposed. Evidence supporting these mechanisms in vivo is, however, incomplete. Here we determined the effect of C9orf72 loss‐of‐function in mice. Methods We generated and analyzed a conditional C9orf72 knockout mouse model. C9orf72fl/fl mice were crossed with Nestin‐Cre mice to selectively remove C9orf72 from neurons and glial cells. Immunohistochemistry was performed to study motor neurons and neuromuscular integrity, as well as several pathological hallmarks of ALS, such as gliosis and TDP‐43 mislocalization. In addition, motor function and survival were assessed. Results Neural‐specific ablation of C9orf72 in conditional C9orf72 knockout mice resulted in significantly reduced body weight but did not induce motor neuron degeneration, defects in motor function, or altered survival. Interpretation Our data suggest that C9orf72 loss‐of‐function, by itself, is insufficient to cause motor neuron disease. These results may have important implications for the development of therapeutic strategies for C9orf72‐associated ALS. Ann Neurol 2015;78:426–438
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Affiliation(s)
- Max Koppers
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.,Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Anna M Blokhuis
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands.,Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Henk-Jan Westeneng
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Margo L Terpstra
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Caroline A C Zundel
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Renata Vieira de Sá
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Raymond D Schellevis
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Adrian J Waite
- Institute of Psychological Medicine and Clinical Neurosciences, Medical Research Council Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Derek J Blake
- Institute of Psychological Medicine and Clinical Neurosciences, Medical Research Council Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Jan H Veldink
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Leonard H van den Berg
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, the Netherlands
| | - R Jeroen Pasterkamp
- Department of Translational Neuroscience, University Medical Center Utrecht, Utrecht, the Netherlands
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