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Foddis M, Blumenau S, Holtgrewe M, Paquette K, Westra K, Alonso I, Macario MDC, Morgadinho AS, Velon AG, Santo G, Santana I, Mönkäre S, Kuuluvainen L, Schleutker J, Pöyhönen M, Myllykangas L, Pavlovic A, Kostic V, Dobricic V, Lohmann E, Hanagasi H, Santos M, Guven G, Bilgic B, Bras J, Beule D, Dirnagl U, Guerreiro R, Sassi C. TREX1 p.A129fs and p.Y305C variants in a large multi-ethnic cohort of CADASIL-like unrelated patients. Neurobiol Aging 2023; 123:208-215. [PMID: 36586737 DOI: 10.1016/j.neurobiolaging.2022.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 11/27/2022]
Abstract
Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) and retinal vasculopathy with cerebral leukodystrophy and systemic manifestations (RVCL-S) are the most common forms of rare monogenic early-onset cerebral small vessel disease and share clinical, and, to different extents, neuroradiological and neuropathological features. However, whether CADASIL and RVCL-S overlapping phenotype may be explained by shared genetic risk or causative factors such as TREX1 coding variants remains poorly understood. To investigate this intriguing hypothesis, we used exome sequencing to screen TREX1 protein-coding variability in a large multi-ethnic cohort of 180 early-onset independent familial and apparently sporadic CADASIL-like Caucasian patients from the USA, Portugal, Finland, Serbia and Turkey. We report 2 very rare and likely pathogenic TREX1 mutations: a loss of function mutation (p.Ala129fs) clustering in the catalytic domain, in an apparently sporadic 46-year-old patient from the USA and a missense mutation (p.Tyr305Cys) in the well conserved C-terminal region, in a 57-year-old patient with positive family history from Serbia. In concert with recent findings, our study expands the clinical spectrum of diseases associated with TREX1 mutations.
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Affiliation(s)
- Marco Foddis
- Department of Experimental Neurology, Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Sonja Blumenau
- Department of Experimental Neurology, Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Manuel Holtgrewe
- Berlin Institute of Health, BIH, Core Unit Bioinformatics and Charité - Universitätsmedizin Berlin, Berlin Germany
| | - Kimberly Paquette
- Department for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan
| | - Kaitlyn Westra
- Department for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan
| | - Isabel Alonso
- CGPP and UnIGENe, Instituto Biologia Molecular Celular, Instituto de Investigação e Inovação em Saúde, Porto, Portugal
| | - Maria do Carmo Macario
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Ana Sofia Morgadinho
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Ana Graça Velon
- Department of Neurology, Centro Hospitalar Trás-os-Montes e Alto Douro, Portugal
| | - Gustavo Santo
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Centro de Neurociências e Biologia Celular da Universidade de Coimbra, Coimbra, Portugal
| | - Isabel Santana
- Department of Neurology, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal; Faculdade de Medicina da Universidade de Coimbra, Coimbra, Portugal; Centro de Neurociências e Biologia Celular da Universidade de Coimbra, Coimbra, Portugal
| | - Saana Mönkäre
- Department of Medical Genetics, University of Helsinki, Helsinki, Finland; Turku University Hospital, Laboratory Division, Genomics, Department of Medical Genetics, Turku, Finland
| | - Liina Kuuluvainen
- Department of Clinical Genetics, HUS Diagnostic Center, Helsinki University Hospital, Helsinki, Finland; Department of Medical Genetics, University of Helsinki, Helsinki, Finland
| | - Johanna Schleutker
- Turku University Hospital, Laboratory Division, Genomics, Department of Medical Genetics, Turku, Finland
| | - Minna Pöyhönen
- Department of Medical Genetics, University of Helsinki, Helsinki, Finland; Department of Clinical Genetics, HUS Diagnostic Center, Helsinki University Hospital, Helsinki, Finland
| | - Liisa Myllykangas
- Department of Pathology, University of Helsinki and HUS Diagnostic Center, Helsinki University Hospital, Helsinki, Finland
| | - Aleksandra Pavlovic
- Clinic of Neurology, University of Belgrade, Belgrade, Serbia; Faculty for Special Education and Rehabilitation, University of Belgrade, Belgrade
| | - Vladimir Kostic
- Clinic of Neurology, University of Belgrade, Belgrade, Serbia
| | | | - Ebba Lohmann
- Behavioural Neurology and Movement Disorders Unit, Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey; Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany; DZNE, German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Hasmet Hanagasi
- Behavioural Neurology and Movement Disorders Unit, Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mariana Santos
- UnIGENe, IBMC-Institute for Molecular and Cell Biology, i3S-Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
| | - Gamze Guven
- Department of Genetics, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Basar Bilgic
- Behavioural Neurology and Movement Disorders Unit, Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Jose Bras
- Department for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan; Division of Psychiatry and Behavioral Medicine, Michigan State University College of Human Medicine, Grand Rapids, MI, USA
| | - Dieter Beule
- Berlin Institute of Health, BIH, Core Unit Bioinformatics and Charité - Universitätsmedizin Berlin, Berlin Germany
| | - Ulrich Dirnagl
- Department of Experimental Neurology, Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Rita Guerreiro
- Department for Neurodegenerative Science, Van Andel Research Institute, Grand Rapids, Michigan; Division of Psychiatry and Behavioral Medicine, Michigan State University College of Human Medicine, Grand Rapids, MI, USA
| | - Celeste Sassi
- Department of Experimental Neurology, Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
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