SQSTM1 mutations in French patients with frontotemporal dementia or frontotemporal dementia with amyotrophic lateral sclerosis
| Autor: | Audrey Gabelle, Isabelle Le Ber, Kawtar Bouya-Ahmed, Stéphanie Millecamps, Timothée Lenglet, Agnès Camuzat, Morwena Latouche, Alexis Brice, Didier Hannequin, John Hardy, Mira Didic, Edor Kabashi, Dominique Campion, Jose Bras, Anne de Septenville, Rita Guerreiro, Gaël Nicolas |
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| Rok vydání: | 2013 |
| Předmět: |
Oncology
Proband Male medicine.medical_specialty Pathology Guanine Neuropsychological Tests medicine.disease_cause Article Cohort Studies Internal medicine mental disorders Sequestosome-1 Protein Medicine Missense mutation Humans Amyotrophic lateral sclerosis Adaptor Proteins Signal Transducing Aged Family Health Tomography Emission-Computed Single-Photon Mutation business.industry Amyotrophic Lateral Sclerosis nutritional and metabolic diseases Brain Organotechnetium Compounds Middle Aged medicine.disease Penetrance Magnetic Resonance Imaging nervous system diseases Frontotemporal Dementia Cohort Female Neurology (clinical) France business Cohort study Frontotemporal dementia |
| Zdroj: | JAMA neurology. 70(11) |
| ISSN: | 2168-6157 |
| Popis: | Importance Mutations in the SQSTM1 gene, coding for p62, are a cause of Paget disease of bone and amyotrophic lateral sclerosis (ALS). Recently, SQSTM1 mutations were confirmed in ALS, and mutations were also identified in 3 patients with frontotemporal dementia (FTD), suggesting a role for SQSTM1 in FTD. Objective To evaluate the exact contribution of SQSTM1 to FTD and FTD with ALS (FTD-ALS) in an independent cohort of patients. Design A SQSTM1 mutation was first identified in a multiplex family with FTD by use of whole-exome sequencing. To evaluate the frequency of SQSTM1 mutations, we sequenced this gene in a cohort of patients with FTD or FTD-ALS, with no mutations in known FTD and ALS genes. Setting Primary care or referral center. Participants An overall cohort of 188 French patients, including 132 probands with FTD and 56 probands with FTD-ALS. Main Outcomes and Measures Frequency of SQSTM1 mutations in patients with FTD or FTD-ALS; description of associated phenotypes. Results We identified 4 heterozygous missense mutations in 4 unrelated families with FTD; only 1 family had clinical symptoms of Paget disease of bone, and only 1 family had clinical symptoms of FTD-ALS, possibly owing to the low penetrance of some of the clinical manifestations. Conclusions and Relevance Although the frequency of the mutations is low in our series (4 of 188 patients [2%]), our results, similar to those already reported, support a direct pathogenic role of p62 in different types of FTD. |
| Databáze: | OpenAIRE |
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