1. Clinical, neuropathological, and genetic characterization of STUB1 variants in cerebellar ataxias: a frequent cause of predominant cognitive impairment
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Thomas Roux, Mathieu Barbier, Mélanie Papin, Claire-Sophie Davoine, Sabrina Sayah, Giulia Coarelli, Perrine Charles, Cecilia Marelli, Livia Parodi, Christine Tranchant, Cyril Goizet, Stephan Klebe, Ebba Lohmann, Lionel Van Maldergem, Christine van Broeckhoven, Marie Coutelier, Christelle Tesson, Giovanni Stevanin, Charles Duyckaerts, Alexis Brice, Alexandra Durr, Frédéric Darios, Sylvie Forlani, Pitié-Salpêtrière Site, Guillaume Banneau, Cécile Cazeneuve, Bertrand Fontaine, Jean-Philippe Azulay, Odile Boesfplug-Tanguy, Didier Hannequin, Jamilé Hazan, Andrea Burgo, Christophe Verny, Michel Koenig, Pierre Labauge, Karine N’guyen, Diana Rodriguez, Soraya Belarbi, Abdelmadjid Hamri, Meriem Tazir, Sylvia Boesch, Massimo Pandolfo, Jardim Laura, Velina Guergueltcheva, Ivalo Tournev, Olga Lucia Pedraza Linarès, Jørgen E. Nielsen, Kirsten Svenstrup, Maha Zaki, Peter Bauer, Lüdger Schöls, Rebecca Schüle, Alexander Lossos, Maria-Teresa Bassi, Manuela Basso, Enrico Bertini, Alfredo Brusco, Carlo Casali, Giorgio Casari, Chiara Criscuolo, Alessandro Filla, Laura Orsi, Filippo M. Santorelli, Enza Maria Valente, Marinela Vavla, Giovanni Vazza, André Megarbane, Ali Benomar, Berry Kremer, Willeke Van Roon-Mom, Richard Roxburgh, Anne Kjersti Erichsen, Chantal Tallaksen, Isabel Alonso, Paula Coutinho, José Léal Loureiro, Jorge Sequeiros, Mustapha Salih, Vladimir S. Kostic, Idoia Rouco Axpe, Liena Elsayed, Martin Arce Paucar, Samir Roumani, Soong Bing-Wen, Evan Reid, Nethisinghe Suran, Thomas Warner, Nicholas Wood, Institut du Cerveau et de la Moëlle Epinière = Brain and Spine Institute (ICM), Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL), Service de Génétique Cytogénétique et Embryologie [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Département de neurologie [Montpellier], Université Montpellier 1 (UM1)-Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Gui de Chauliac [Montpellier]-Université de Montpellier (UM), Mécanismes moléculaires dans les démences neurodégénératives (MMDN), Université de Montpellier (UM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), CHU Strasbourg, Laboratoire Maladies Rares: Génétique et Métabolisme (Bordeaux) (U1211 INSERM/MRGM), Université de Bordeaux (UB)-Groupe hospitalier Pellegrin-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Bordeaux [Bordeaux], Universitätsklinikum Essen [Universität Duisburg-Essen] (Uniklinik Essen), University of Tübingen, Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), University of Antwerp (UA), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), SPATAX Network, Roux, T., Barbier, M., Papin, M., Davoine, C. -S., Sayah, S., Coarelli, G., Charles, P., Marelli, C., Parodi, L., Tranchant, C., Goizet, C., Klebe, S., Lohmann, E., Van Maldergen, L., van Broeckhoven, C., Coutelier, M., Tesson, C., Stevanin, G., Duyckaerts, C., Brice, A., Durr, A., Darios, F., Forlani, S., Site, P. -S., Banneau, G., Cazeneuve, C., Fontaine, B., Azulay, J. -P., Boesfplug-Tanguy, O., Hannequin, D., Hazan, J., Burgo, A., Verny, C., Koenig, M., Labauge, P., N'Guyen, K., Rodriguez, D., Belarbi, S., Hamri, A., Tazir, M., Boesch, S., Pandolfo, M., Laura, J., Guergueltcheva, V., Tournev, I., Pedraza Linares, O. L., Nielsen, J. E., Svenstrup, K., Zaki, M., Bauer, P., Schols, L., Schule, R., Lossos, A., Bassi, M. -T., Basso, M., Bertini, E., Brusco, A., Casali, C., Casari, G., Criscuolo, C., Filla, A., Orsi, L., Santorelli, F. M., Valente, E. M., Vavla, M., Vazza, G., Megarbane, A., Benomar, A., Kremer, B., Van Roon-Mom, W., Roxburgh, R., Erichsen, A. K., Tallaksen, C., Alonso, I., Coutinho, P., Loureiro, J. L., Sequeiros, J., Salih, M., Kostic, V. S., Rouco Axpe, I., Elsayed, L., Paucar, M. A., Roumani, S., Bing-Wen, S., Reid, E., Suran, N., Warner, T., and Wood, N.
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Male ,Pathology ,MESH: Ataxia ,Purkinje cell ,Medizin ,MESH: Cognitive Dysfunction ,0302 clinical medicine ,spinocerebellar ataxia ,ATP-Dependent Proteases ,SCA48 ,Medicine ,Genetics (clinical) ,0303 health sciences ,Penetrance ,3. Good health ,MESH: Cerebellar Ataxia ,MESH: ATPases Associated with Diverse Cellular Activities ,medicine.anatomical_structure ,Spinocerebellar ataxia ,Female ,medicine.symptom ,Frontotemporal dementia ,medicine.medical_specialty ,Ataxia ,Cerebellar Ataxia ,MESH: Spinocerebellar Ataxias ,Ubiquitin-Protein Ligases ,Neuropathology ,03 medical and health sciences ,MESH: ATP-Dependent Proteases ,Atrophy ,Humans ,Spinocerebellar Ataxias ,Cognitive Dysfunction ,030304 developmental biology ,cognitive impairment ,SCAR16 ,STUB1 ,MESH: Humans ,Cerebellar ataxia ,business.industry ,medicine.disease ,MESH: Ubiquitin-Protein Ligases ,MESH: Male ,ATPases Associated with Diverse Cellular Activities ,[SDV.GEN.GH]Life Sciences [q-bio]/Genetics/Human genetics ,Human medicine ,business ,MESH: Female ,030217 neurology & neurosurgery - Abstract
International audience; Purpose: Pathogenic variants in STUB1 were initially described in autosomal recessive spinocerebellar ataxia type 16 and dominant cerebellar ataxia with cerebellar cognitive dysfunction (SCA48).Methods: We analyzed a large series of 440 index cerebellar ataxia cases, mostly with dominant inheritance.Results: STUB1 variants were detected in 50 patients. Age at onset and severity were remarkably variable. Cognitive impairment, predominantly frontal syndrome, was observed in 54% of STUB1 variant carriers, including five families with Huntington or frontotemporal dementia disease-like phenotypes associated with ataxia, while no STUB1 variant was found in 115 patients with frontotemporal dementia. We report neuropathological findings of a STUB1 heterozygous patient, showing massive loss of Purkinje cells in the vermis and major loss in the cerebellar hemispheres without atrophy of the pons, hippocampus, or cerebral cortex. This screening of STUB1 variants revealed new features: (1) the majority of patients were women (70%) and (2) "second hits" in AFG3L2, PRKCG, and TBP were detected in three families suggesting synergic effects.Conclusion: Our results reveal an unexpectedly frequent (7%) implication of STUB1 among dominantly inherited cerebellar ataxias, and suggest that the penetrance of STUB1 variants could be modulated by other factors, including sex and variants in other ataxia-related genes.
- Published
- 2020
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