Projects per year
Abstract
Mutations in C9ORF72 are the most common cause of familial amyotrophic lateral sclerosis (ALS). Here, through a combination of RNA-Seq and electrophysiological studies on induced pluripotent stem cell (iPSC)-derived motor neurons (MNs), we show that increased expression of GluA1 AMPA receptor (AMPAR) subunit occurs in MNs with C9ORF72 mutations that leads to increased Ca2+-permeable AMPAR expression and results in enhanced selective MN vulnerability to excitotoxicity. These deficits are not found in iPSC-derived cortical neurons and are abolished by CRISPR/Cas9-mediated correction of the C9ORF72 repeat expansion in MNs. We also demonstrate that MN-specific dysregulation of AMPAR expression is also present in C9ORF72 patient post-mortem material. We therefore present multiple lines of evidence for the specific upregulation of GluA1 subunits in human mutant C9ORF72 MNs that could lead to a potential pathogenic excitotoxic mechanism in ALS.
| Original language | English |
|---|---|
| Article number | 347 |
| Journal | Nature Communications |
| Volume | 9 |
| Early online date | 24 Jan 2018 |
| DOIs | |
| Publication status | Published - 24 Jan 2018 |
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Dive into the research topics of 'C9ORF72 repeat expansion causes vulnerability of motor neurons to Ca2+-permeable AMPA receptor-mediated excitotoxicity'. Together they form a unique fingerprint.Projects
- 4 Finished
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Future-Proofing the sustainability of the MRC high throughput sequencing hub in Scotland
Blaxter, M. (Principal Investigator)
1/10/12 → 30/09/14
Project: Research
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Ark Genomics
Watson, M. (Principal Investigator), Archibald, A. (Co-investigator) & Burt, D. (Co-investigator)
Biotechnology and Biological Sciences Research Council
1/04/12 → 31/03/17
Project: Research
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Receptors, Function and plasticity in human embryonic stem cell-derived neurons.
Ffrench-Constant, C. (Principal Investigator)
10/01/11 → 9/01/15
Project: Research
Profiles
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Siddharthan Chandran
- Centre for Clinical Brain Sciences
- Euan MacDonald Centre for Motor Neuron Disease Research
- Centre for Regenerative Medicine
- Anne Rowling Regenerative Neurology Clinic
- Edinburgh Neuroscience
- Edinburgh Imaging
- School of Neurological and Cardiovascular Sciences - MacDonald Chair of Neurology
Person: Academic: Research Active
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Simon Lillico
- Royal (Dick) School of Veterinary Studies - Core Scientist (Research Fellow)
- Edinburgh Imaging
Person: Academic: Research Active
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David Wyllie
- School of Neurological and Cardiovascular Sciences - Personal Chair of Ion Channel Physiology and Pharmacology
- Centre for Discovery Brain Sciences - Director
- Euan MacDonald Centre for Motor Neuron Disease Research
- Edinburgh Neuroscience
Person: Academic: Research Active
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