1
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Raposo M, Hübener-Schmid J, Tagett R, Ferreira AF, Vieira Melo AR, Vasconcelos J, Pires P, Kay T, Garcia-Moreno H, Giunti P, Santana MM, Pereira de Almeida L, Infante J, van de Warrenburg BP, de Vries JJ, Faber J, Klockgether T, Casadei N, Admard J, Schöls L, Riess O, Costa MDC, Lima M. Blood and cerebellar abundance of ATXN3 splice variants in spinocerebellar ataxia type 3/Machado-Joseph disease. Neurobiol Dis 2024; 193:106456. [PMID: 38423193 DOI: 10.1016/j.nbd.2024.106456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 11/14/2023] [Accepted: 02/25/2024] [Indexed: 03/02/2024] Open
Abstract
Spinocerebellar ataxia type 3 (SCA3)/Machado-Joseph disease (MJD) is a heritable proteinopathy disorder, whose causative gene, ATXN3, undergoes alternative splicing. Ataxin-3 protein isoforms differ in their toxicity, suggesting that certain ATXN3 splice variants may be crucial in driving the selective toxicity in SCA3. Using RNA-seq datasets we identified and determined the abundance of annotated ATXN3 transcripts in blood (n = 60) and cerebellum (n = 12) of SCA3 subjects and controls. The reference transcript (ATXN3-251), translating into an ataxin-3 isoform harbouring three ubiquitin-interacting motifs (UIMs), showed the highest abundance in blood, while the most abundant transcript in the cerebellum (ATXN3-208) was of unclear function. Noteworthy, two of the four transcripts that encode full-length ataxin-3 isoforms but differ in the C-terminus were strongly related with tissue expression specificity: ATXN3-251 (3UIM) was expressed in blood 50-fold more than in the cerebellum, whereas ATXN3-214 (2UIM) was expressed in the cerebellum 20-fold more than in the blood. These findings shed light on ATXN3 alternative splicing, aiding in the comprehension of SCA3 pathogenesis and providing guidance in the design of future ATXN3 mRNA-lowering therapies.
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Affiliation(s)
- Mafalda Raposo
- IBMC - Instituto de Biologia Molecular e Celular, i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.
| | - Jeannette Hübener-Schmid
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Centre for Rare Diseases, University of Tübingen, Tübingen, Germany.
| | - Rebecca Tagett
- Bioinformatics Core, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Ana F Ferreira
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Ana Rosa Vieira Melo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - João Vasconcelos
- Serviço de Neurologia, Hospital do Divino Espírito Santo, Ponta Delgada, Portugal
| | - Paula Pires
- Serviço de Neurologia, Hospital do Santo Espírito da Ilha Terceira, Angra do Heroísmo, Portugal
| | - Teresa Kay
- Serviço de Genética Clínica, Hospital D. Estefânia, Lisboa, Portugal
| | - Hector Garcia-Moreno
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK; Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK; Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Magda M Santana
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal; Institute for Interdisciplinary Research, University of Coimbra (IIIUC), Coimbra, Portugal
| | - Luis Pereira de Almeida
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal; Center for Innovative Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal; Faculty of Pharmacy, University of Coimbra (FFUC), Coimbra, Portugal
| | - Jon Infante
- Neurology Service, University Hospital Marqués de Valdecilla-IDIVAL, Universidad de Cantabria, Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), Santander, Spain
| | - Bart P van de Warrenburg
- Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, Nijmegen, the Netherlands
| | - Jeroen J de Vries
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Jennifer Faber
- Department of Neurology, University Hospital Bonn, Bonn, Germany; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Thomas Klockgether
- Department of Neurology, University Hospital Bonn, Bonn, Germany; German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Nicolas Casadei
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; NGS Competence Center Tübingen, Tübingen, Germany
| | - Jakob Admard
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; NGS Competence Center Tübingen, Tübingen, Germany
| | - Ludger Schöls
- Department for Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center for Neurology, University of Tübingen, Germany; German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Olaf Riess
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany; Centre for Rare Diseases, University of Tübingen, Tübingen, Germany; NGS Competence Center Tübingen, Tübingen, Germany
| | - Maria do Carmo Costa
- Department of Neurology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA.
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.
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2
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Duarte-Silva S, Da Silva JD, Monteiro-Fernandes D, Costa MD, Neves-Carvalho A, Raposo M, Soares-Cunha C, Correia JS, Nogueira-Goncalves G, Fernandes HS, Oliveira S, Ferreira-Fernandes AR, Rodrigues F, Pereira-Sousa J, Vilasboas-Campos D, Guerreiro S, Campos J, Meireles-Costa L, Rodrigues CM, Cabantous S, Sousa SF, Lima M, Teixeira-Castro A, Maciel P. Glucocorticoid receptor-dependent therapeutic efficacy of tauroursodeoxycholic acid in preclinical models of spinocerebellar ataxia type 3. J Clin Invest 2024; 134:e162246. [PMID: 38227368 PMCID: PMC10904051 DOI: 10.1172/jci162246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 01/09/2024] [Indexed: 01/17/2024] Open
Abstract
Spinocerebellar ataxia type 3 (SCA3) is an adult-onset neurodegenerative disease caused by a polyglutamine expansion in the ataxin-3 (ATXN3) gene. No effective treatment is available for this disorder, other than symptom-directed approaches. Bile acids have shown therapeutic efficacy in neurodegenerative disease models. Here, we pinpointed tauroursodeoxycholic acid (TUDCA) as an efficient therapeutic, improving the motor and neuropathological phenotype of SCA3 nematode and mouse models. Surprisingly, transcriptomic and functional in vivo data showed that TUDCA acts in neuronal tissue through the glucocorticoid receptor (GR), but independently of its canonical receptor, the farnesoid X receptor (FXR). TUDCA was predicted to bind to the GR, in a similar fashion to corticosteroid molecules. GR levels were decreased in disease-affected brain regions, likely due to increased protein degradation as a consequence of ATXN3 dysfunction being restored by TUDCA treatment. Analysis of a SCA3 clinical cohort showed intriguing correlations between the peripheral expression of GR and the predicted age at disease onset in presymptomatic subjects and FKBP5 expression with disease progression, suggesting this pathway as a potential source of biomarkers for future study. We have established a novel in vivo mechanism for the neuroprotective effects of TUDCA in SCA3 and propose this readily available drug for clinical trials in SCA3 patients.
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Affiliation(s)
- Sara Duarte-Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Diogo Da Silva
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Medical Genetics Center Dr. Jacinto de Magalhães, Santo António University Hospital Center, Porto, Portugal
- Unit for Multidisciplinary Research in Biomedicine, Abel Salazar Biomedical Sciences Institute, Porto University, Porto, Portugal
| | - Daniela Monteiro-Fernandes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Marta Daniela Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Andreia Neves-Carvalho
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Mafalda Raposo
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Carina Soares-Cunha
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana S. Correia
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Gonçalo Nogueira-Goncalves
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Henrique S. Fernandes
- UCIBIO – Applied Molecular Biosciences Unit, BioSIM – Departamento de Biomedicina and
- Associate Laboratory i4HB – Institute for Health and Bioeconomy, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Stephanie Oliveira
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Ana Rita Ferreira-Fernandes
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Fernando Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Pereira-Sousa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Daniela Vilasboas-Campos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Sara Guerreiro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jonas Campos
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Liliana Meireles-Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Cecilia M.P. Rodrigues
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Stephanie Cabantous
- Cancer Research Center of Toulouse (CRCT), Inserm, Université de Toulouse, UPS, CNRS, Toulouse, France
| | - Sergio F. Sousa
- UCIBIO – Applied Molecular Biosciences Unit, BioSIM – Departamento de Biomedicina and
- Associate Laboratory i4HB – Institute for Health and Bioeconomy, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Andreia Teixeira-Castro
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Patricia Maciel
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B’s – PT Government Associate Laboratory, Braga/Guimarães, Portugal
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3
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Faber J, Berger M, Wilke C, Hubener-Schmid J, Schaprian T, Santana MM, Grobe-Einsler M, Onder D, Koyak B, Giunti P, Garcia-Moreno H, Gonzalez-Robles C, Lima M, Raposo M, Melo ARV, de Almeida LP, Silva P, Pinto MM, van de Warrenburg BP, van Gaalen J, de Vries J, Oz G, Joers JM, Synofzik M, Schols L, Riess O, Infante J, Manrique L, Timmann D, Thieme A, Jacobi H, Reetz K, Dogan I, Onyike C, Povazan M, Schmahmann J, Ratai EM, Schmid M, Klockgether T. Stage-Dependent Biomarker Changes in Spinocerebellar Ataxia Type 3. Ann Neurol 2024; 95:400-406. [PMID: 37962377 DOI: 10.1002/ana.26824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 11/09/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
Spinocerebellar ataxia type 3/Machado-Joseph disease is the most common autosomal dominant ataxia. In view of the development of targeted therapies, knowledge of early biomarker changes is needed. We analyzed cross-sectional data of 292 spinocerebellar ataxia type 3/Machado-Joseph disease mutation carriers. Blood concentrations of mutant ATXN3 were high before and after ataxia onset, whereas neurofilament light deviated from normal 13.3 years before onset. Pons and cerebellar white matter volumes decreased and deviated from normal 2.2 years and 0.6 years before ataxia onset. We propose a staging model of spinocerebellar ataxia type 3/Machado-Joseph disease that includes a biomarker stage characterized by objective indicators of neurodegeneration before ataxia onset. ANN NEUROL 2024;95:400-406.
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Affiliation(s)
- Jennifer Faber
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Moritz Berger
- University of Bonn, Medical Faculty, Institute for Medical Biometry, Informatics, and Epidemiology, Bonn, Germany
| | - Carlo Wilke
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Jeannette Hubener-Schmid
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Tamara Schaprian
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Magda M Santana
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - Marcus Grobe-Einsler
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Demet Onder
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Berkan Koyak
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Hector Garcia-Moreno
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Cristina Gonzalez-Robles
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Mafalda Raposo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Ana Rosa Vieira Melo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Luís Pereira de Almeida
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - Patrick Silva
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Maria M Pinto
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Bart P van de Warrenburg
- Department of Neurology, Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Judith van Gaalen
- Department of Neurology, Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Center, Nijmegen, the Netherlands
- Department of Neurology, Rijnstate Hospital, Arnhem, the Netherlands
| | - Jeroen de Vries
- University Medical Center Groningen, Neurology, Groningen, the Netherlands
| | - Gulin Oz
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
| | - James M Joers
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
| | - Matthis Synofzik
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Division Translational Genomics of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research & Center of Neurology, University of Tübingen, Tübingen, Germany
| | - Ludger Schols
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
- Division Translational Genomics of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research & Center of Neurology, University of Tübingen, Tübingen, Germany
| | - Olaf Riess
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Jon Infante
- University Hospital Marqués de Valdecilla-IDIVAL, Santander, Spain
- Centro de investigación biomédica en red de enfermedades neurodegenerativas (CIBERNED), Universidad de Cantabria, Santander, Spain
| | - Leire Manrique
- University Hospital Marqués de Valdecilla-IDIVAL, Santander, Spain
| | - Dagmar Timmann
- Department of Neurology and Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Andreas Thieme
- Department of Neurology and Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen, Duisburg, Germany
| | - Heike Jacobi
- Department of Neurology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Kathrin Reetz
- Department of Neurology, RWTH Aachen University, Aachen, Germany
- JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Research Centre Juelich GmbH and RWTH Aachen University, Aachen, Germany
| | - Imis Dogan
- Department of Neurology, RWTH Aachen University, Aachen, Germany
- JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Research Centre Juelich GmbH and RWTH Aachen University, Aachen, Germany
| | - Chiadikaobi Onyike
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michal Povazan
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jeremy Schmahmann
- Ataxia Center, Laboratory for Neuroanatomy and Cerebellar Neurobiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Eva-Maria Ratai
- Massachusetts General Hospital, Department of Radiology, A. A. Martinos Center for Biomedical Imaging and Harvard Medical School, Charlestown, MA, USA
| | - Matthias Schmid
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- University of Bonn, Medical Faculty, Institute for Medical Biometry, Informatics, and Epidemiology, Bonn, Germany
| | - Thomas Klockgether
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
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4
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Raposo M, Hübener-Schmid J, Ferreira AF, Vieira Melo AR, Vasconcelos J, Pires P, Kay T, Garcia-Moreno H, Giunti P, Santana MM, Pereira de Almeida L, Infante J, van de Warrenburg BP, de Vries JJ, Faber J, Klockgether T, Casadei N, Admard J, Schöls L, Riess O, Lima M. Blood transcriptome sequencing identifies biomarkers able to track disease stages in spinocerebellar ataxia type 3. Brain 2023; 146:4132-4143. [PMID: 37071051 DOI: 10.1093/brain/awad128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 10/19/2022] [Accepted: 03/27/2023] [Indexed: 04/19/2023] Open
Abstract
Transcriptional dysregulation has been described in spinocerebellar ataxia type 3/Machado-Joseph disease (SCA3/MJD), an autosomal dominant ataxia caused by a polyglutamine expansion in the ataxin-3 protein. As ataxin-3 is ubiquitously expressed, transcriptional alterations in blood may reflect early changes that start before clinical onset and might serve as peripheral biomarkers in clinical and research settings. Our goal was to describe enriched pathways and report dysregulated genes, which can track disease onset, severity or progression in carriers of the ATXN3 mutation (pre-ataxic subjects and patients). Global dysregulation patterns were identified by RNA sequencing of blood samples from 40 carriers of ATXN3 mutation and 20 controls and further compared with transcriptomic data from post-mortem cerebellum samples of MJD patients and controls. Ten genes-ABCA1, CEP72, PTGDS, SAFB2, SFSWAP, CCDC88C, SH2B1, LTBP4, MEG3 and TSPOAP1-whose expression in blood was altered in the pre-ataxic stage and simultaneously, correlated with ataxia severity in the overt disease stage, were analysed by quantitative real-time PCR in blood samples from an independent set of 170 SCA3/MJD subjects and 57 controls. Pathway enrichment analysis indicated the Gαi signalling and the oestrogen receptor signalling to be similarly affected in blood and cerebellum. SAFB2, SFSWAP and LTBP4 were consistently dysregulated in pre-ataxic subjects compared to controls, displaying a combined discriminatory ability of 79%. In patients, ataxia severity was associated with higher levels of MEG3 and TSPOAP1. We propose expression levels of SAFB2, SFSWAP and LTBP4 as well as MEG3 and TSPOAP1 as stratification markers of SCA3/MJD progression, deserving further validation in longitudinal studies and in independent cohorts.
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Affiliation(s)
- Mafalda Raposo
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
| | - Jeannette Hübener-Schmid
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72076 Tübingen, Germany
- Centre for Rare Diseases, University of Tübingen, 72072 Tübingen, Germany
| | - Ana F Ferreira
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
| | - Ana Rosa Vieira Melo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
| | - João Vasconcelos
- Serviço de Neurologia, Hospital do Divino Espírito Santo, 9500-370 Ponta Delgada, Portugal
| | - Paula Pires
- Serviço de Neurologia, Hospital do Santo Espírito da Ilha Terceira, 9700-049 Angra do Heroísmo, Portugal
| | - Teresa Kay
- Serviço de Genética Clínica, Hospital D. Estefânia, 1169-045 Lisboa, Portugal
| | - Hector Garcia-Moreno
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London WC1N 3BG, UK
| | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London WC1N 3BG, UK
| | - Magda M Santana
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, 3000-075, Portugal
| | - Luis Pereira de Almeida
- Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, 3000-075, Portugal
| | - Jon Infante
- Neurology Service, University Hospital Marqués de Valdecilla-IDIVAL, Universidad de Cantabria, Centro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED), 28029 Madrid, Spain
| | - Bart P van de Warrenburg
- Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, 6525 EN Nijmegen, The Netherlands
| | - Jeroen J de Vries
- Department of Neurology, University of Groningen, University Medical Center Groningen, 9700 AD Groningen, The Netherlands
| | - Jennifer Faber
- Department of Neurology, University Hospital Bonn, 53127 Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
| | - Thomas Klockgether
- Department of Neurology, University Hospital Bonn, 53127 Bonn, Germany
- German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
| | - Nicolas Casadei
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72076 Tübingen, Germany
- NGS Competence Center Tübingen, 72016 Tübingen, Germany
| | - Jakob Admard
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72076 Tübingen, Germany
- NGS Competence Center Tübingen, 72016 Tübingen, Germany
| | - Ludger Schöls
- Department for Neurodegenerative Diseases, Hertie-Institute for Clinical Brain Research and Center for Neurology, University of Tübingen, 72016 Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), 72016 Tübingen, Germany
| | - Olaf Riess
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, 72076 Tübingen, Germany
- Centre for Rare Diseases, University of Tübingen, 72072 Tübingen, Germany
- NGS Competence Center Tübingen, 72016 Tübingen, Germany
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
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5
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Raposo M, de la Fuente C, Pumarola M, Ríos J, Añor S. Immunohistochemical evaluation of fibrin/fibrinogen, d-dimers, and intravascular thrombosis in brains of dogs with meningoencephalitis of unknown origin. Vet J 2023; 298-299:106018. [PMID: 37532174 DOI: 10.1016/j.tvjl.2023.106018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/17/2023] [Accepted: 07/30/2023] [Indexed: 08/04/2023]
Abstract
Granulomatous meningoencephalitis (GME) and necrotizing encephalitides (NE) are the most common immune-mediated inflammatory diseases of the central nervous system in dogs. Activation of the fibrinolytic system in multiple sclerosis, a similar immune-mediated disease affecting the central nervous system in humans, seems to be related to disease progression. The aim of this study was to identify fibrin/fibrinogen and D-dimer deposition, as well as presence of intravascular thrombosis (IVT) in brains of dogs with a diagnosis of GME or NE. Immunohistochemical studies using antibodies against fibrin/fibrinogen and D-dimers were performed. Statistical analyses were performed to determine whether there were differences in the presence and location of fibrin/fibrinogen, D-dimers deposits, and IVT between GME and NE. Samples from sixty-four dogs were included in the study: 32 with a diagnosis of GME and 32 with a diagnosis of NE. Fibrin/fibrinogen depositions were detected in all samples and d-dimers were detected in 43/64 samples. IVT was present in 29/64 samples, with a significantly higher score in samples from dogs with NE than in samples from dogs with GME (P = 0.001). These data support hemostatic system activation in both diseases, especially NE. This finding might be related to the origin of the necrotic lesions seen in NE, which could represent chronic ischemic lesions. Further studies are needed to investigate the association between vascular lesions and the histopathological differences between GME and NE and the hemostatic system as a potential therapeutic target.
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Affiliation(s)
- M Raposo
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Fundació Hospital Clínic Veterinari, Facultad de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - C de la Fuente
- Fundació Hospital Clínic Veterinari, Facultad de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - M Pumarola
- Unitat de Patologia Murina i Comparada (UPMiC) and Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - J Ríos
- Unitat de Bioestadística, Facultat de Medicina, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - S Añor
- Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain; Fundació Hospital Clínic Veterinari, Facultad de Veterinària, Universitat Autònoma de Barcelona, Bellaterra, 08193 Barcelona, Spain.
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6
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Ferreira AF, Raposo M, Shaw ED, Ashraf NS, Medeiros F, Brilhante MDF, Perkins M, Vasconcelos J, Kay T, Costa MDC, Lima M. Tissue-Specific Vulnerability to Apoptosis in Machado-Joseph Disease. Cells 2023; 12:1404. [PMID: 37408238 DOI: 10.3390/cells12101404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 07/07/2023] Open
Abstract
Machado-Joseph disease (MJD) is a dominant neurodegenerative disease caused by an expanded CAG repeat in the ATXN3 gene encoding the ataxin-3 protein. Several cellular processes, including transcription and apoptosis, are disrupted in MJD. To gain further insights into the extent of dysregulation of mitochondrial apoptosis in MJD and to evaluate if expression alterations of specific apoptosis genes/proteins can be used as transcriptional biomarkers of disease, the expression levels of BCL2, BAX and TP53 and the BCL2/BAX ratio (an indicator of susceptibility to apoptosis) were assessed in blood and post-mortem brain samples from MJD subjects and MJD transgenic mice and controls. While patients show reduced levels of blood BCL2 transcripts, this measurement displays low accuracy to discriminate patients from matched controls. However, increased levels of blood BAX transcripts and decreased BCL2/BAX ratio are associated with earlier onset of disease, indicating a possible association with MJD pathogenesis. Post-mortem MJD brains show increased BCL2/BAX transcript ratio in the dentate cerebellar nucleus (DCN) and increased BCL2/BAX insoluble protein ratio in the DCN and pons, suggesting that in these regions, severely affected by degeneration in MJD, cells show signs of apoptosis resistance. Interestingly, a follow-up study of 18 patients further shows that blood BCL2 and TP53 transcript levels increase over time in MJD patients. Furthermore, while the similar levels of blood BCL2, BAX, and TP53 transcripts observed in preclinical subjects and controls is mimicked by pre-symptomatic MJD mice, the expression profile of these genes in patient brains is partially replicated by symptomatic MJD mice. Globally, our findings indicate that there is tissue-specific vulnerability to apoptosis in MJD subjects and that this tissue-dependent behavior is partially replicated in a MJD mouse model.
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Affiliation(s)
- Ana F Ferreira
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Mafalda Raposo
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Emily D Shaw
- Department of Neurology, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Naila S Ashraf
- Department of Neurology, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Filipa Medeiros
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
| | - Maria de Fátima Brilhante
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Centro de Estatística e Aplicações, Universidade de Lisboa (CEAUL), 1749-016 Lisboa, Portugal
| | - Matthew Perkins
- Department of Neurology, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - João Vasconcelos
- Serviço de Neurologia, Hospital do Divino Espírito Santo (HDES), 9500-370 Ponta Delgada, Portugal
| | - Teresa Kay
- Serviço de Genética Clínica, Hospital D. Estefânia, 1169-045 Lisboa, Portugal
| | - Maria do Carmo Costa
- Department of Neurology, Michigan Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
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7
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Faber J, Berger M, Carlo W, Hübener-Schmid J, Schaprian T, Santana MM, Grobe-Einsler M, Onder D, Koyak B, Giunti P, Garcia-Moreno H, Gonzalez-Robles C, Lima M, Raposo M, Melo ARV, de Almeida LP, Silva P, Pinto MM, van de Warrenburg BP, van Gaalen J, de Vries J, Jeroen, Oz G, Joers JM, Synofzik M, Schöls L, Riess O, Infante J, Manrique L, Timmann D, Thieme A, Jacobi H, Reetz K, Dogan I, Onyike C, Povazan M, Schmahmann J, Ratai EM, Schmid M, Klockgether T. Stage-dependent biomarker changes in spinocerebellar ataxia type 3. medRxiv 2023:2023.04.21.23287817. [PMID: 37163081 PMCID: PMC10168503 DOI: 10.1101/2023.04.21.23287817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Spinocerebellar ataxia type 3/Machado-Joseph disease (SCA3) is the most common autosomal dominant ataxia. In view of the development of targeted therapies for SCA3, precise knowledge of stage-dependent fluid and MRI biomarker changes is needed. We analyzed cross-sectional data of 292 SCA3 mutation carriers including 57 pre-ataxic individuals, and 108 healthy controls from the European Spinocerebellar ataxia type 3/Machado-Joseph Disease Initiative (ESMI) cohort. Blood concentrations of mutant ATXN3 and neurofilament light (NfL) were determined, and volumes of pons, cerebellar white matter (CWM) and cerebellar grey matter (CGM) were measured on MRI. Mutant ATXN3 concentrations were high before and after ataxia onset, while NfL continuously increased and deviated from normal 11.9 years before onset. Pons and CWM volumes decreased, but the deviation from normal was only 2.0 years (pons) and 0.3 years (CWM) before ataxia onset. We propose a staging model of SCA3 that includes an initial asymptomatic carrier stage followed by the biomarker stage defined by absence of ataxia, but a significant rise of NfL. The biomarker stage leads into the ataxia stage, defined by manifest ataxia. The present analysis provides a robust framework for further studies aiming at elaboration and differentiation of the staging model of SCA3.
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Affiliation(s)
- Jennifer Faber
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Moritz Berger
- University of Bonn, Medical Faculty, Institute for Medical Biometry, Informatics and Epidemiology
| | - Wilke Carlo
- Division Translational Genomics of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research & Center of Neurology, University of Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Jeannette Hübener-Schmid
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Tamara Schaprian
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Magda M Santana
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - Marcus Grobe-Einsler
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Dement Onder
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Berkan Koyak
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London WC1N 3BG, UK
| | - Hector Garcia-Moreno
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London WC1N 3BG, UK
| | - Cristina Gonzalez-Robles
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
- Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London WC1N 3BG, UK
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Mafalda Raposo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Ana Rosa Vieira Melo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Luis Pereira de Almeida
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
| | - Patrick Silva
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Maria M Pinto
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
- Center for Innovative in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Bart P. van de Warrenburg
- Department of Neurology, Donders Institute for Brain, Cognition, and Behaviour, Radboud university medical center
| | - Judith van Gaalen
- Department of Neurology, Donders Institute for Brain, Cognition, and Behaviour, Radboud university medical center
- Department of Neurology, Rinjstate Hospital, Arnhem, The Netherlands
| | | | - Jeroen
- University Medical Center Groningen, Neurology
| | - Gulin Oz
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
| | - James M. Joers
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, MN, USA
| | - Matthis Synofzik
- Division Translational Genomics of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research & Center of Neurology, University of Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Ludger Schöls
- Division Translational Genomics of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research & Center of Neurology, University of Tübingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Olaf Riess
- Institute for Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Jon Infante
- University Hospital Marqués de Valdecilla-IDIVAL, Santander, Spain
- Centro de investigación biomédica en red de enfermedades neurodegenerativas (CIBERNED), Universidad de Cantabria, Santander, Spain
| | - Leire Manrique
- University Hospital Marqués de Valdecilla-IDIVAL, Santander, Spain
| | - Dagmar Timmann
- Department of Neurology and Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen
| | - Andreas Thieme
- Department of Neurology and Center for Translational Neuro- and Behavioral Sciences (C-TNBS), University Hospital Essen, University of Duisburg-Essen
| | - Heike Jacobi
- Department of Neurology, University Hospital of Heidelberg, Germany
| | - Kathrin Reetz
- Department of Neurology, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
- JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Research Centre Juelich GmbH and RWTH Aachen University, 52074 Aachen, Germany
| | - Imis Dogan
- Department of Neurology, RWTH Aachen University, Pauwelsstr. 30, 52074 Aachen, Germany
- JARA-BRAIN Institute Molecular Neuroscience and Neuroimaging, Research Centre Juelich GmbH and RWTH Aachen University, 52074 Aachen, Germany
| | - Chiadikaobi Onyike
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland USA
| | - Michal Povazan
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jeremy Schmahmann
- Ataxia Center, Laboratory for Neuroanatomy and Cerebellar Neurobiology, Massachusetts General Hospital and Harvard Medical School
| | - Eva-Maria Ratai
- Massachusetts General Hospital, Department of Radiology, A. A. Martinos Center for Biomedical Imaging and Harvard Medical School, Charlestown, Massachusetts, USA
| | - Matthias Schmid
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- University of Bonn, Medical Faculty, Institute for Medical Biometry, Informatics and Epidemiology
| | - Thomas Klockgether
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
- Department of Neurology, University Hospital Bonn, Bonn, Germany
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8
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Santana MM, Gaspar LS, Pinto MM, Silva P, Adão D, Pereira D, Ribeiro JA, Cunha I, Huebener‐Schmid J, Raposo M, Ferreira AF, Faber J, Kuhs S, Garcia‐Moreno H, Reetz K, Thieme A, Infante J, van de Warrenburg BPC, Giunti P, Riess O, Schöls L, Lima M, Klockgether T, Januário C, de Almeida LP. A standardised protocol for blood and cerebrospinal fluid collection and processing for biomarker research in ataxia. Neuropathol Appl Neurobiol 2023; 49:e12892. [PMID: 36798010 PMCID: PMC10947376 DOI: 10.1111/nan.12892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/07/2023] [Accepted: 02/12/2023] [Indexed: 02/18/2023]
Abstract
The European Spinocerebellar Ataxia Type 3/Machado-Joseph Disease Initiative (ESMI) is a consortium established with the ambition to set up the largest European longitudinal trial-ready cohort of Spinocerebellar Ataxia Type 3/Machado-Joseph Disease (SCA3/MJD), the most common autosomal dominantly inherited ataxia worldwide. A major focus of ESMI has been the identification of SCA3/MJD biomarkers to enable future interventional studies. As biosample collection and processing variables significantly impact the outcomes of biomarkers studies, biosampling procedures standardisation was done previously to study visit initiation. Here, we describe the ESMI consensus biosampling protocol, developed within the scope of ESMI, that ultimately might be translated to other neurodegenerative disorders, particularly ataxias, being the first step to protocol harmonisation in the field.
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Affiliation(s)
- Magda M. Santana
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
- Institute for Interdisciplinary ResearchUniversity of Coimbra (IIIUC)CoimbraPortugal
| | - Laetitia S. Gaspar
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
- Institute for Interdisciplinary ResearchUniversity of Coimbra (IIIUC)CoimbraPortugal
| | - Maria M. Pinto
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
- Faculty of PharmacyUniversity of Coimbra (FFUC)CoimbraPortugal
| | - Patrick Silva
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
- Institute for Interdisciplinary ResearchUniversity of Coimbra (IIIUC)CoimbraPortugal
- Faculty of PharmacyUniversity of Coimbra (FFUC)CoimbraPortugal
| | - Diana Adão
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
| | - Dina Pereira
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
- Institute for Interdisciplinary ResearchUniversity of Coimbra (IIIUC)CoimbraPortugal
| | - Joana Afonso Ribeiro
- Neurology Department, Child Development CentreCoimbra's Hospital and University Centre (CHUC)CoimbraPortugal
| | - Inês Cunha
- Department of NeurologyCoimbra University Hospital Center (CHUC)CoimbraPortugal
| | - Jeannette Huebener‐Schmid
- Institute of Medical Genetics and Applied GenomicsUniversity of TübingenTübingenGermany
- Centre for Rare DiseasesUniversity of TübingenTübingenGermany
| | - Mafalda Raposo
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S)Universidade do PortoPortoPortugal
- Faculdade de Ciências e Tecnologia (FCT)Universidade dos Açores (UAc)Ponta DelgadaPortugal
| | - Ana F. Ferreira
- Faculdade de Ciências e Tecnologia (FCT)Universidade dos Açores (UAc)Ponta DelgadaPortugal
| | - Jennifer Faber
- DZNE, German Center for Neurodegenerative DiseasesBonnGermany
- Department of NeurologyUniversity Hospital BonnBonnGermany
| | - Sandra Kuhs
- DZNE, German Center for Neurodegenerative DiseasesBonnGermany
| | - Hector Garcia‐Moreno
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of NeurologyUniversity College LondonLondonUK
- Department of Neurogenetics, National Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Kathrin Reetz
- Department of NeurologyRWTH Aachen UniversityAachenGermany
- JARA‐BRAIN Institute Molecular Neuroscience and NeuroimagingForschungszentrum Jülich GmbH and RWTH Aachen UniversityAachenGermany
| | - Andreas Thieme
- Department of NeurologyEssen University HospitalEssenGermany
- Center for Translational Neuro‐ and Behavioral Sciences (C‐TNBS), Essen University HospitalUniversity of Duisburg‐EssenEssenGermany
| | - Jon Infante
- Service of NeurologyUniversity Hospital Marqués de Valdecilla (IDIVAL), University of Cantabria (UC), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED)SantanderSpain
| | - Bart P. C. van de Warrenburg
- Department of Neurology, Radboud University Medical CentreDonders Institute for Brain, Cognition and BehaviourNijmegenThe Netherlands
| | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of NeurologyUniversity College LondonLondonUK
- Department of Neurogenetics, National Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Olaf Riess
- Institute of Medical Genetics and Applied GenomicsUniversity of TübingenTübingenGermany
- Centre for Rare DiseasesUniversity of TübingenTübingenGermany
| | - Ludger Schöls
- Department of Neurodegenerative Diseases and Hertie‐Institute for Clinical Brain ResearchUniversity of TübingenTübingenGermany
- German Centre for Neurodegenerative Diseases (DZNE)TübingenGermany
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia (FCT)Universidade dos Açores (UAc)Ponta DelgadaPortugal
| | - Thomas Klockgether
- DZNE, German Center for Neurodegenerative DiseasesBonnGermany
- Department of NeurologyUniversity Hospital BonnBonnGermany
| | - Cristina Januário
- Department of NeurologyCoimbra University Hospital Center (CHUC)CoimbraPortugal
| | - Luís Pereira de Almeida
- Center for Neuroscience and Cell Biology (CNC)University of CoimbraCoimbraPortugal
- Center for Innovative Biomedicine and Biotechnology (CIBB)University of CoimbraCoimbraPortugal
- Faculty of PharmacyUniversity of Coimbra (FFUC)CoimbraPortugal
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9
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Lima M, Raposo M, Ferreira A, Melo ARV, Pavão S, Medeiros F, Teves L, Gonzalez C, Lemos J, Pires P, Lopes P, Valverde D, Gonzalez J, Kay T, Vasconcelos J. The Homogeneous Azorean Machado-Joseph Disease Cohort: Characterization and Contributions to Advances in Research. Biomedicines 2023; 11:biomedicines11020247. [PMID: 36830784 PMCID: PMC9953730 DOI: 10.3390/biomedicines11020247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023] Open
Abstract
Machado-Joseph disease (MJD)/spinocerebellar ataxia type 3 (SCA3) is the most common autosomal dominant ataxia worldwide. MJD is characterized by late-onset progressive cerebellar ataxia associated with variable clinical findings, including pyramidal signs and a dystonic-rigid extrapyramidal syndrome. In the Portuguese archipelago of the Azores, the worldwide population cluster for this disorder (prevalence of 39 in 100,000 inhabitants), a cohort of MJD mutation carriers belonging to extensively studied pedigrees has been followed since the late 1990s. Studies of the homogeneous Azorean MJD cohort have been contributing crucial information to the natural history of this disease as well as allowing the identification of novel molecular biomarkers. Moreover, as interventional studies for this globally rare and yet untreatable disease are emerging, this cohort should be even more important for the recruitment of trial participants. In this paper, we profile the Azorean cohort of MJD carriers, constituted at baseline by 20 pre-ataxic carriers and 52 patients, which currently integrates the European spinocerebellar ataxia type 3/Machado-Joseph disease Initiative (ESMI), a large European longitudinal MJD cohort. Moreover, we summarize the main studies based on this cohort and highlight the contributions made to advances in MJD research. Knowledge of the profile of the Azorean MJD cohort is not only important in the context of emergent interventional trials but is also pertinent for the implementation of adequate interventional measures, constituting relevant information for Lay Associations and providing data to guide healthcare decision makers.
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Affiliation(s)
- Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Correspondence:
| | - Mafalda Raposo
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Ana Ferreira
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Ana Rosa Vieira Melo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Sara Pavão
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
| | - Filipa Medeiros
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
| | - Luís Teves
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, 4200-135 Porto, Portugal
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, 4200-135 Porto, Portugal
| | - Carlos Gonzalez
- Serviço de Psicologia Clínica, Hospital do Divino Espírito Santo, 9500-370 Ponta Delgada, Portugal
| | - João Lemos
- Unidade de Psicologia Clínica, Hospital do Santo Espírito da Ilha Terceira, 9700-049 Angra do Heroísmo, Portugal
| | - Paula Pires
- Serviço de Neurologia, Hospital do Santo Espírito da Ilha Terceira, 9700-049 Angra do Heroísmo, Portugal
| | - Pedro Lopes
- Serviço de Neurologia, Hospital do Divino Espírito Santo, 9500-370 Ponta Delgada, Portugal
| | - David Valverde
- Serviço de Patologia Clínica, Unidade de Saúde da Ilha das Flores, 9500-370 Santa Cruz das Flores, Portugal
| | - José Gonzalez
- Augenarztpraxis Petrescu Wuppertal, Department of Ophthalmology, 42389 Wuppertal, Germany
| | - Teresa Kay
- Serviço de Genética Médica, Hospital D. Estefânia, 1169-045 Lisboa, Portugal
| | - João Vasconcelos
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, 9500-321 Ponta Delgada, Portugal
- Hospital Internacional dos Açores (HIA), 9560-421 Ponta Delgada, Portugal
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10
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Garcia‐Moreno H, Prudencio M, Thomas‐Black G, Solanky N, Jansen‐West KR, Hanna AL‐Shaikh R, Heslegrave A, Zetterberg H, Santana MM, Pereira de Almeida L, Vasconcelos‐Ferreira A, Januário C, Infante J, Faber J, Klockgether T, Reetz K, Raposo M, Ferreira AF, Lima M, Schöls L, Synofzik M, Hübener‐Schmid J, Puschmann A, Gorcenco S, Wszolek ZK, Petrucelli L, Giunti P. Tau and neurofilament light-chain as fluid biomarkers in spinocerebellar ataxia type 3. Eur J Neurol 2022; 29:2439-2452. [PMID: 35478426 PMCID: PMC9543545 DOI: 10.1111/ene.15373] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/06/2022] [Accepted: 04/24/2022] [Indexed: 01/02/2023]
Abstract
BACKGROUND AND PURPOSE Clinical trials in spinocerebellar ataxia type 3 (SCA3) will require biomarkers for use as outcome measures. METHODS To evaluate total tau (t-tau), glial fibrillary acidic protein (GFAP), ubiquitin carboxy-terminal hydrolase L1 (UCHL1) and neurofilament light-chain (NfL) as fluid biomarkers in SCA3, ATXN3 mutation carriers (n = 143) and controls (n = 172) were clinically assessed, and the plasma concentrations of the four proteins were analysed on the Simoa HD-1 platform. Eleven ATXN3 mutation carrier cerebrospinal fluid samples were analysed for t-tau and phosphorylated tau (p-tau181 ). A transgenic SCA3 mouse model (MJDTg) was used to measure cerebellar t-tau levels. RESULTS Plasma t-tau levels were higher in mutation carriers below the age of 50 compared to controls, and the Inventory of Non-Ataxia Signs was associated with t-tau in ataxic patients (p = 0.004). Pre-ataxic carriers showed higher cerebrospinal fluid t-tau and p-tau181 concentrations compared to ataxic patients (p = 0.025 and p = 0.014, respectively). Cerebellar t-tau was elevated in MJDTg mice compared to wild-type (p = 0.033) only in the early stages of the disease. GFAP and UCHL1 did not show higher levels in mutation carriers compared to controls. Plasma NfL concentrations were higher in mutation carriers compared to controls, and differences were greater for younger carriers. The Scale for the Assessment and Rating of Ataxia was the strongest predictor of NfL in ataxic patients (p < 0.001). CONCLUSION Our results suggest that tau might be a marker of early disease stages in SCA3. NfL can discriminate mutation carriers from controls and is associated with different clinical variables. Longitudinal studies are required to confirm their potential role as biomarkers in clinical trials.
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Affiliation(s)
- Hector Garcia‐Moreno
- Ataxia CentreDepartment of Clinical and Movement NeurosciencesUCL Queen Square Institute of NeurologyUniversity College LondonLondonUK,Department of NeurogeneticsNational Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Mercedes Prudencio
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA,Neuroscience Graduate ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Gilbert Thomas‐Black
- Ataxia CentreDepartment of Clinical and Movement NeurosciencesUCL Queen Square Institute of NeurologyUniversity College LondonLondonUK,Department of NeurogeneticsNational Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
| | - Nita Solanky
- Ataxia CentreDepartment of Clinical and Movement NeurosciencesUCL Queen Square Institute of NeurologyUniversity College LondonLondonUK,Department of NeurogeneticsNational Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
| | | | | | - Amanda Heslegrave
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK,UK Dementia Research Institute at UCLLondonUK
| | - Henrik Zetterberg
- Department of Neurodegenerative DiseaseUCL Queen Square Institute of NeurologyLondonUK,UK Dementia Research Institute at UCLLondonUK,Department of Psychiatry and NeurochemistryInstitute of Neuroscience and Physiologythe Sahlgrenska Academy at the University of GothenburgMölndalSweden,Clinical Neurochemistry LaboratorySahlgrenska University HospitalMölndalSweden
| | - Magda M. Santana
- Center for Neuroscience and Cell BiologyUniversity of CoimbraCoimbraPortugal
| | | | | | | | - Jon Infante
- Neurology ServiceUniversity Hospital Marqués de Valdecilla‐IDIVALUniversity of CantabriaCentro de Investigación en Red de Enfermedades Neurodegenerativas (CIBERNED)SantanderSpain
| | - Jennifer Faber
- Department of NeurologyUniversity Hospital BonnBonnGermany,German Center for Neurodegenerative Diseases (DZNE)BonnGermany
| | - Thomas Klockgether
- Department of NeurologyUniversity Hospital BonnBonnGermany,German Center for Neurodegenerative Diseases (DZNE)BonnGermany
| | - Kathrin Reetz
- Department of NeurologyRWTH Aachen UniversityAachenGermany,JARA‐BRAIN Institute Molecular Neuroscience and NeuroimagingForschungszentrum JülichRWTH Aachen UniversityAachenGermany
| | - Mafalda Raposo
- Faculdade de Ciências e TecnologiaUniversidade dos AçoresPonta DelgadaPortugal,Instituto de Biologia Molecular e Celular (IBMC)Instituto de Investigação e Inovação em Saúde (i3S)Universidade do PortoPortoPortugal
| | - Ana F. Ferreira
- Faculdade de Ciências e TecnologiaUniversidade dos AçoresPonta DelgadaPortugal,Instituto de Biologia Molecular e Celular (IBMC)Instituto de Investigação e Inovação em Saúde (i3S)Universidade do PortoPortoPortugal
| | - Manuela Lima
- Faculdade de Ciências e TecnologiaUniversidade dos AçoresPonta DelgadaPortugal,Instituto de Biologia Molecular e Celular (IBMC)Instituto de Investigação e Inovação em Saúde (i3S)Universidade do PortoPortoPortugal
| | - Ludger Schöls
- Department for Neurodegenerative DiseasesHertie‐Institute for Clinical Brain Research and Center for NeurologyUniversity of TübingenTübingenGermany,German Center for Neurodegenerative Diseases (DZNE)TübingenGermany
| | - Matthis Synofzik
- Department for Neurodegenerative DiseasesHertie‐Institute for Clinical Brain Research and Center for NeurologyUniversity of TübingenTübingenGermany,German Center for Neurodegenerative Diseases (DZNE)TübingenGermany
| | | | - Andreas Puschmann
- Lund University, Skåne University HospitalClinical Sciences, NeurologyLundSweden
| | - Sorina Gorcenco
- Lund University, Skåne University HospitalClinical Sciences, NeurologyLundSweden
| | | | - Leonard Petrucelli
- Department of NeuroscienceMayo ClinicJacksonvilleFloridaUSA,Neuroscience Graduate ProgramMayo Clinic Graduate School of Biomedical SciencesJacksonvilleFloridaUSA
| | - Paola Giunti
- Ataxia CentreDepartment of Clinical and Movement NeurosciencesUCL Queen Square Institute of NeurologyUniversity College LondonLondonUK,Department of NeurogeneticsNational Hospital for Neurology and NeurosurgeryUniversity College London Hospitals NHS Foundation TrustLondonUK
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11
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Brito J, Silva P, Aguiar-Ricardo I, Cunha N, Pinto R, Raposo M, Gregorio C, Sousa P, Caldeira E, Miguel S, Abreu A. Cardiac Optimal Point: Identifying high risk patients for an optimal approach. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
In recent years it has been proposed the concept of cardiorespiratory optimal point (COP) to best characterize populations who underwent cardiac rehabilitation programmes (CRP). The COP is defined as the minimum ratio between ventilation and oxygen consumption (VE/VO2) obtained during the cardiopulmonary exercise test (CPET) and it has been suggested that COP values > 30 conveyed worse prognosis.
Purpose
To validate OP as a predictor of events and its correlation with exercise activity and quality of life on the long term.
Methods
Single center observational study of patients enrolled on CRP - from February 2018 to May 2019 – who did CPET as part of routine evaluation. COP was defined as the lowest point of VE/VO2 ratio. Clinical and laboratorial characteristics were obtained at admission and discharge of CRP. Exercise practice was accessed using IPAQ questionnaire and quality of life was assessed based on a validated inquire - Kansas City Cardiomyopathy Questionnaire (KCCQ-23) – both by phone interview.
Results
A total of 78 patients (mean age 63.2 ±11.6, 84.6% male) were evaluated and followed for a mean follow-up of 2,68±0,53 years. Main aetiology was ischemic heart disease (86%), followed by dilated cardiomyopathy (5,1%) and valvular heart disease (2,6%).
A COP value above 30 correlated with a worse global score in KCC-23 (r =0.283, p = 0.47), and in particular domains such as frequency and severity of symptoms (p = 0.046, r 0.335 and p=0.16, r= 0.4, respectively), quality of life (p=0.039, r= 0.293) and social limitation (p = 0.001, r=0.5). COP also correlated with VO2 peak in basal CPET (p<0.001, r= 0.450) and on follow-up CPET (p= 0.39, r= 0.303).
COP failed to predict events or levels of exercise activity on the long term, as evaluated by the IPAQ score. However, COP>30 did seem to correlate with a higher mortality rate on the follow-up although such trend was not statistically significant (possibly due to short follow-up time and sample size).
Conclusion
COP values > 30 identify patients with worse prognosis, predicting worse quality of life and higher mortality. Although it did not seem to be a good predictor of exercise adherence after CRP.
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Affiliation(s)
- J Brito
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - P Silva
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - I Aguiar-Ricardo
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - N Cunha
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - R Pinto
- Santa Maria University Hospital CHLN Lisbon Academic Medical Centre, Serviço de Medicina Física e Reabilitação, Centro Hospitalar Universitário Lisboa Norte, EPE, Lisboa, Lisbon, Portugal
| | - M Raposo
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - C Gregorio
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
| | - P Sousa
- Santa Maria University Hospital CHLN Lisbon Academic Medical Centre, Serviço de Medicina Física e Reabilitação, Centro Hospitalar Universitário Lisboa Norte, EPE, Lisboa, Lisbon, Portugal
| | - E Caldeira
- Santa Maria University Hospital CHLN Lisbon Academic Medical Centre, Serviço de Medicina Física e Reabilitação, Centro Hospitalar Universitário Lisboa Norte, EPE, Lisboa, Lisbon, Portugal
| | - S Miguel
- Santa Maria University Hospital CHLN Lisbon Academic Medical Centre, Serviço de Medicina Física e Reabilitação, Centro Hospitalar Universitário Lisboa Norte, EPE, Lisboa, Lisbon, Portugal
| | - A Abreu
- Cardiology Department, Santa Maria University Hospital (CHULN), CAML, CCUL, Lisbon School of Medicine, Universidade de Lisboa, Lisbon, Portugal
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12
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Raposo M, Bettencourt C, Melo ARV, Ferreira AF, Alonso I, Silva P, Vasconcelos J, Kay T, Saraiva-Pereira ML, Costa MD, Vilasboas-Campos D, Bettencourt BF, Bruges-Armas J, Houlden H, Heutink P, Jardim LB, Sequeiros J, Maciel P, Lima M. Novel Machado-Joseph disease-modifying genes and pathways identified by whole-exome sequencing. Neurobiol Dis 2021; 162:105578. [PMID: 34871736 DOI: 10.1016/j.nbd.2021.105578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/08/2021] [Accepted: 12/02/2021] [Indexed: 11/17/2022] Open
Abstract
Machado-Joseph disease (MJD/SCA3) is a neurodegenerative polyglutamine disorder exhibiting a wide spectrum of phenotypes. The abnormal size of the (CAG)n at ATXN3 explains ~55% of the age at onset variance, suggesting the involvement of other factors, namely genetic modifiers, whose identification remains limited. Our aim was to find novel genetic modifiers, analyse their epistatic effects and identify disease-modifying pathways contributing to MJD variable expressivity. We performed whole-exome sequencing in a discovery sample of four age at onset concordant and four discordant first-degree relative pairs of Azorean patients, to identify candidate variants which genotypes differed for each discordant pair but were shared in each concordant pair. Variants identified by this approach were then tested in an independent multi-origin cohort of 282 MJD patients. Whole-exome sequencing identified 233 candidate variants, from which 82 variants in 53 genes were prioritized for downstream analysis. Eighteen disease-modifying pathways were identified; two of the most enriched pathways were relevant for the nervous system, namely the neuregulin signaling and the agrin interactions at neuromuscular junction. Variants at PARD3, NFKB1, CHD5, ACTG1, CFAP57, DLGAP2, ITGB1, DIDO1 and CERS4 modulate age at onset in MJD, with those identified in CFAP57, ACTG1 and DIDO1 showing consistent effects across cohorts of different geographical origins. Network analyses of the nine novel MJD modifiers highlighted several important molecular interactions, including genes/proteins previously related with MJD pathogenesis, namely between ACTG1/APOE and VCP/ITGB1. We describe novel pathways, modifiers, and their interaction partners, providing a broad molecular portrait of age at onset modulation to be further exploited as new disease-modifying targets for MJD and related diseases.
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Affiliation(s)
- Mafalda Raposo
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal; Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.
| | - Conceição Bettencourt
- Department of Neurodegenerative Disease and Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, UK.
| | - Ana Rosa Vieira Melo
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal; Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
| | - Ana F Ferreira
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal; Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.
| | - Isabel Alonso
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Paulo Silva
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.
| | - João Vasconcelos
- Departamento de Neurologia, Hospital do Divino Espírito Santo, Ponta Delgada, Portugal
| | - Teresa Kay
- Departamento de Genética Clínica, Hospital D. Estefânia, Lisboa, Portugal
| | - Maria Luiza Saraiva-Pereira
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Brazil; Serviço de Genética Médica/Centro de Pesquisa Clínica e Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
| | - Marta D Costa
- Instituto de Investigação em Ciências da Vida e Saúde (ICVS), Escola de Medicina, Universidade do Minho, Braga, Portugal; ICVS/3B's - Laboratório Associado, Braga/Guimarães, Portugal.
| | - Daniela Vilasboas-Campos
- Instituto de Investigação em Ciências da Vida e Saúde (ICVS), Escola de Medicina, Universidade do Minho, Braga, Portugal; ICVS/3B's - Laboratório Associado, Braga/Guimarães, Portugal
| | - Bruno Filipe Bettencourt
- Serviço Especializado de Epidemiologia e Biologia Molecular (SEEBMO), Hospital de Santo Espírito da Ilha Terceira (HSEIT), Angra do Heroísmo, Azores, Portugal
| | - Jácome Bruges-Armas
- Serviço Especializado de Epidemiologia e Biologia Molecular (SEEBMO), Hospital de Santo Espírito da Ilha Terceira (HSEIT), Angra do Heroísmo, Azores, Portugal; CHRC - Comprehensive Health Research Centre, Faculdade de Ciências Médicas & CEDOC - Chronic Diseases Research Center, Universidade Nova de Lisboa, Lisboa, Portugal
| | - Henry Houlden
- Department of Molecular Neuroscience, Institute of Neurology, University College London and Neurogenetics Unit, National Hospital for Neurology and Neurosurgery, University College London Hospitals, London, United Kingdom, London.
| | - Peter Heutink
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany.
| | - Laura Bannach Jardim
- Departamento de Medicina Interna, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Serviço de Genética Médica/Centro de Pesquisa Clínica e Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil.
| | - Jorge Sequeiros
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal.
| | - Patrícia Maciel
- Instituto de Investigação em Ciências da Vida e Saúde (ICVS), Escola de Medicina, Universidade do Minho, Braga, Portugal; ICVS/3B's - Laboratório Associado, Braga/Guimarães, Portugal.
| | - Manuela Lima
- Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal; Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.
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13
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Hübener-Schmid J, Kuhlbrodt K, Peladan J, Faber J, Santana MM, Hengel H, Jacobi H, Reetz K, Garcia-Moreno H, Raposo M, van Gaalen J, Infante J, Steiner KM, de Vries J, Verbeek MM, Giunti P, Pereira de Almeida L, Lima M, van de Warrenburg B, Schöls L, Klockgether T, Synofzik M, Riess O. Polyglutamine-Expanded Ataxin-3: A Target Engagement Marker for Spinocerebellar Ataxia Type 3 in Peripheral Blood. Mov Disord 2021; 36:2675-2681. [PMID: 34397117 DOI: 10.1002/mds.28749] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 06/27/2021] [Accepted: 07/21/2021] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Spinocerebellar ataxia type 3 is a rare neurodegenerative disease caused by a CAG repeat expansion in the ataxin-3 gene. Although no curative therapy is yet available, preclinical gene-silencing approaches to reduce polyglutamine (polyQ) toxicity demonstrate promising results. In view of upcoming clinical trials, quantitative and easily accessible molecular markers are of critical importance as pharmacodynamic and particularly as target engagement markers. OBJECTIVE We aimed at developing an ultrasensitive immunoassay to measure specifically polyQ-expanded ataxin-3 in plasma and cerebrospinal fluid (CSF). METHODS Using the novel single molecule counting ataxin-3 immunoassay, we analyzed cross-sectional and longitudinal patient biomaterials. RESULTS Statistical analyses revealed a correlation with clinical parameters and a stability of polyQ-expanded ataxin-3 during conversion from the pre-ataxic to the ataxic phases. CONCLUSIONS The novel immunoassay is able to quantify polyQ-expanded ataxin-3 in plasma and CSF, whereas ataxin-3 levels in plasma correlate with disease severity. Longitudinal analyses demonstrated a high stability of polyQ-expanded ataxin-3 over a short period. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Jeannette Hübener-Schmid
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany.,Centre for Rare Diseases, University of Tübingen, Tübingen, Germany
| | | | | | - Jennifer Faber
- DZNE, German Center for Neurodegenerative Diseases, Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Magda M Santana
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,Center for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal.,IIIUC-Institute for Interdisciplinary Research, University of Coimbra, Coimbra, Portugal
| | - Holger Hengel
- Department of Neurodegenerative Diseases and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Heike Jacobi
- Department of Neurology, University Hospital of Heidelberg, Heidelberg, Germany
| | - Kathrin Reetz
- Department of Neurology, RWTH Aachen University, Aachen, Germany.,JARA-Brain Institute Molecular Neuroscience and Neuroimaging, Jülich, Germany
| | - Hector Garcia-Moreno
- Department of Clinical and Movement Neuroscience, Ataxia Centre, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.,Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Mafalda Raposo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal & Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Judith van Gaalen
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Jon Infante
- Service of Neurology, University Hospital Marqués de Valdecilla (IDIVAL), University of Cantabria (UC), Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Santander, Spain
| | - Katharina M Steiner
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences, Essen University Hospital, University of Duisburg-Essen, Essen, Germany
| | - Jeroen de Vries
- Department of Neurology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Marcel M Verbeek
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands.,Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Paola Giunti
- Department of Clinical and Movement Neuroscience, Ataxia Centre, UCL Queen Square Institute of Neurology, University College London, London, United Kingdom.,Department of Neurogenetics, National Hospital for Neurology and Neurosurgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Luis Pereira de Almeida
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal.,Center for Innovation in Biomedicine and Biotechnology (CIBB), University of Coimbra, Coimbra, Portugal.,Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal & Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Bart van de Warrenburg
- Department of Neurology, Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, The Netherlands
| | - Ludger Schöls
- Department of Neurodegenerative Diseases and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Thomas Klockgether
- DZNE, German Center for Neurodegenerative Diseases, Bonn, Germany.,Department of Neurology, University Hospital Bonn, Bonn, Germany
| | - Matthis Synofzik
- Department of Neurodegenerative Diseases and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | | | - Olaf Riess
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany.,Centre for Rare Diseases, University of Tübingen, Tübingen, Germany
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14
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Yau WY, Raposo M, Bettencourt C, Labrum R, Vasconcelos J, Parkinson MH, Giunti P, Wood NW, Lima M, Houlden H. The repeat variant in MSH3 is not a genetic modifier for spinocerebellar ataxia type 3 and Friedreich's ataxia. Brain 2020; 143:e25. [PMID: 32154839 DOI: 10.1093/brain/awaa043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Wai Yan Yau
- Department of Neuromuscular Diseases, Institute of Neurology, University College London, UK
| | - Mafalda Raposo
- Faculty of Sciences and Technology, University of Azores, Ponta Delgada, Portugal
- Institute for Molecular and Cell Biology, Institute for Investigation and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Conceição Bettencourt
- The Queen Square Brain Bank for Neurological Disorders, UCL Queen Square Institute of Neurology, London, UK
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, London, UK
| | - Robyn Labrum
- Neurogenetics Unit, National Hospital for Neurology and Neurosurgery, London, UK
| | - João Vasconcelos
- Department of Neurology, Hospital of Divino Espírito Santo, Ponta Delgada, Portugal
| | - Michael H Parkinson
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, Queen Square, London, UK
| | - Paola Giunti
- Ataxia Centre, Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, Queen Square, London, UK
| | - Nicholas W Wood
- Department of Neuromuscular Diseases, Institute of Neurology, University College London, UK
- Neurogenetics Unit, National Hospital for Neurology and Neurosurgery, London, UK
| | - Manuela Lima
- Faculty of Sciences and Technology, University of Azores, Ponta Delgada, Portugal
- Institute for Molecular and Cell Biology, Institute for Investigation and Innovation in Health (i3S), University of Porto, Porto, Portugal
| | - Henry Houlden
- Department of Neuromuscular Diseases, Institute of Neurology, University College London, UK
- Neurogenetics Unit, National Hospital for Neurology and Neurosurgery, London, UK
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15
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Akçimen F, Martins S, Liao C, Bourassa CV, Catoire H, Nicholson GA, Riess O, Raposo M, França MC, Vasconcelos J, Lima M, Lopes-Cendes I, Saraiva-Pereira ML, Jardim LB, Sequeiros J, Dion PA, Rouleau GA. Genome-wide association study identifies genetic factors that modify age at onset in Machado-Joseph disease. Aging (Albany NY) 2020; 12:4742-4756. [PMID: 32205469 PMCID: PMC7138549 DOI: 10.18632/aging.102825] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 01/27/2020] [Indexed: 02/07/2023]
Abstract
Machado-Joseph disease (MJD/SCA3) is the most common form of dominantly inherited ataxia worldwide. The disorder is caused by an expanded CAG repeat in the ATXN3 gene. Past studies have revealed that the length of the expansion partly explains the disease age at onset (AO) variability of MJD, which is confirmed in this study (Pearson’s correlation coefficient R2 = 0.62). Using a total of 786 MJD patients from five different geographical origins, a genome-wide association study (GWAS) was conducted to identify additional AO modifying factors that could explain some of the residual AO variability. We identified nine suggestively associated loci (P < 1 × 10−5). These loci were enriched for genes involved in vesicle transport, olfactory signaling, and synaptic pathways. Furthermore, associations between AO and the TRIM29 and RAG genes suggests that DNA repair mechanisms might be implicated in MJD pathogenesis. Our study demonstrates the existence of several additional genetic factors, along with CAG expansion, that may lead to a better understanding of the genotype-phenotype correlation in MJD.
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Affiliation(s)
- Fulya Akçimen
- Department of Human Genetics, McGill University, Montréal, Québec, Canada.,Montreal Neurological Institute and Hospital, McGill University, Montréal, Québec, Canada
| | - Sandra Martins
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IPATIMUP - Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal
| | - Calwing Liao
- Department of Human Genetics, McGill University, Montréal, Québec, Canada.,Montreal Neurological Institute and Hospital, McGill University, Montréal, Québec, Canada
| | - Cynthia V Bourassa
- Montreal Neurological Institute and Hospital, McGill University, Montréal, Québec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
| | - Hélène Catoire
- Montreal Neurological Institute and Hospital, McGill University, Montréal, Québec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
| | - Garth A Nicholson
- University of Sydney, Department of Medicine, Concord Hospital, Concord, Australia
| | - Olaf Riess
- Institute of Medical Genetics and Applied Genomics, University of Tuebingen, Tuebingen, Germany
| | - Mafalda Raposo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores e Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Marcondes C França
- Department of Neurology, Faculty of Medical Sciences, UNICAMP, São Paulo, Campinas, Brazil
| | - João Vasconcelos
- School of Medical Sciences, Department of Medical Genetics and Genomic Medicine, University of Campinas (UNICAMP), São Paulo, Campinas, Brazil
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores e Instituto de Biologia Molecular e Celular (IBMC), Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
| | - Iscia Lopes-Cendes
- The Brazilian Institute of Neuroscience and Neurotechnology (BRAINN), São Paulo, Campinas, Brazil.,Departamento de Neurologia, Hospital do Divino Espírito Santo, Ponta Delgada, Portugal
| | - Maria Luiza Saraiva-Pereira
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Depto. de Bioquímica - ICBS, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Laura B Jardim
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Depto de Medicina Interna, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Jorge Sequeiros
- IPATIMUP - Institute of Molecular Pathology and Immunology of the University of Porto, Porto, Portugal.,Institute for Molecular and Cell Biology (IBMC), Universidade do Porto, Porto, Portugal.,Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Patrick A Dion
- Montreal Neurological Institute and Hospital, McGill University, Montréal, Québec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
| | - Guy A Rouleau
- Department of Human Genetics, McGill University, Montréal, Québec, Canada.,Montreal Neurological Institute and Hospital, McGill University, Montréal, Québec, Canada.,Department of Neurology and Neurosurgery, McGill University, Montréal, Québec, Canada
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16
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Ferreira AF, Raposo M, Vasconcelos J, Costa MDC, Lima M. Selection of Reference Genes for Normalization of Gene Expression Data in Blood of Machado-Joseph Disease/Spinocerebellar Ataxia Type 3 (MJD/SCA3) Subjects. J Mol Neurosci 2019; 69:450-455. [PMID: 31286408 DOI: 10.1007/s12031-019-01374-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/27/2019] [Indexed: 11/25/2022]
Abstract
Alongside with the emergent clinical trials for Machado-Joseph disease/Spinocerebellar ataxia type 3 (MJD/SCA3) comes the need to identify molecular biomarkers of disease that can be tracked throughout the trial. MJD is an autosomal dominant neurodegenerative disorder caused by expansion of a CAG repeat in the coding region of the ATXN3 gene. Previous findings indicate the potential of transcriptional alterations in blood of MJD patients as biomarkers of disease. Accurate quantification of gene expression levels by quantitative real-time PCR (qPCR) depends on data normalization, usually performed using reference genes. Because the expression level of routinely used housekeeping genes may vary in multiple biological and experimental conditions, reference gene controls should be validated in each specific experimental design. Here, we aimed to evaluate the expression behavior of five housekeeping genes previously reported as stably expressed in peripheral blood of patients from several disorders-peptidylprolyl isomerase B (PPIB), TNF receptor associated protein 1 (TRAP1), beta-2-microglobulin (B2M), 2,4-dienoyl-CoA reductase 1 (DECR1), and folylpolyglutamate synthase (FPGS). Expression levels of these five genes were assessed by qPCR in blood from MJD subjects (preataxic and patients) and matched controls. While all housekeeping genes, here studied, were stably expressed in our sets of samples, TRAP1 showed to be the most stable gene by NormFinder and BestKeeper. We, therefore, conclude that any of these genes could be used as reference gene in future qPCR studies using blood samples from MJD subjects.
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Affiliation(s)
- Ana F Ferreira
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.
- Instituto de Investigação e Inovação em Saúde (I3S), Porto, Portugal.
- Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal.
| | - Mafalda Raposo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
- Instituto de Investigação e Inovação em Saúde (I3S), Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal
| | - João Vasconcelos
- Serviço de Neurologia, Hospital Divino Espírito Santo, Ponta Delgada, Portugal
| | - Maria do Carmo Costa
- Department of Neurology, Michigan Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Manuela Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal
- Instituto de Investigação e Inovação em Saúde (I3S), Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Porto, Portugal
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17
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Ramos A, Planchat M, Vieira Melo AR, Raposo M, Shamim U, Suroliya V, Srivastava AK, Faruq M, Morino H, Ohsawa R, Kawakami H, Bannach Jardim L, Saraiva-Pereira ML, Vasconcelos J, Santos C, Lima M. Mitochondrial DNA haplogroups and age at onset of Machado-Joseph disease/spinocerebellar ataxia type 3: a study in patients from multiple populations. Eur J Neurol 2018; 26:506-512. [PMID: 30414314 DOI: 10.1111/ene.13860] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 11/06/2018] [Indexed: 01/16/2023]
Abstract
BACKGROUND AND PURPOSE Mitochondrial dysfunction has been implicated in the pathogenesis of several neurodegenerative disorders, including Machado-Joseph disease (MJD), an autosomal dominant late-onset polyglutamine ataxia that results from an unstable expansion of a CAG tract in the ATXN3 gene. The size of the CAG tract only partially explains age at onset (AO), highlighting the existence of disease modifiers. Mitochondrial DNA (mtDNA) haplogroups have been associated with clinical presentation in other polyglutamine disorders, constituting potential modifiers of MJD phenotype. METHODS A cross-sectional study, using 235 unrelated patients from Portugal, Brazil, India and Japan, was performed to investigate if mtDNA haplogroups contribute to AO of MJD. mtDNA haplogroups were obtained after sequencing the mtDNA hypervariable region I. Patients were classified in 15 phylogenetically related haplogroup clusters. RESULTS The AO was significantly different among populations, implying the existence of other non-CAG factors, which seem to be population specific. In the Portuguese population, patients classified as belonging to haplogroup JT presented the earliest onset (estimated onset 34.6 years of age). Haplogroups W and X seem to have a protective effect, causing a delay in onset (estimated onset 47 years of age). No significant association between haplogroup clusters and AO was detected in the other populations or when all patients were pooled. Although haplogroup JT has already been implicated in other neurodegenerative disorders, no previous reports of an association between haplogroups W and X and disease were found. CONCLUSIONS These findings suggest that haplogroups JT, W and X modify AO in MJD. Replication studies should be performed in European populations, where the frequency of the candidate modifiers is similar.
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Affiliation(s)
- A Ramos
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.,Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal.,Departamento Biologia Animal, Biologia Vegetal i Ecologia, Unitat d'Antropologia Biològica, Universitat Autònoma de Barcelona, Cerdanyola del Valles, Spain
| | - M Planchat
- Departamento Biologia Animal, Biologia Vegetal i Ecologia, Unitat d'Antropologia Biològica, Universitat Autònoma de Barcelona, Cerdanyola del Valles, Spain
| | - A R Vieira Melo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.,Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - M Raposo
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.,Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
| | - U Shamim
- CSIR - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
| | - V Suroliya
- CSIR - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India.,Department of Neurology, Neuroscience Centre, All India Institute of Medical Sciences, New Delhi, India
| | - A K Srivastava
- Department of Neurology, Neuroscience Centre, All India Institute of Medical Sciences, New Delhi, India
| | - M Faruq
- CSIR - Institute of Genomics and Integrative Biology (IGIB), New Delhi, India
| | - H Morino
- Department of Epidemiology, Research Institute for Radiology and Medicine, Hiroshima University, Hiroshima, Japan
| | - R Ohsawa
- Department of Epidemiology, Research Institute for Radiology and Medicine, Hiroshima University, Hiroshima, Japan
| | - H Kawakami
- Department of Epidemiology, Research Institute for Radiology and Medicine, Hiroshima University, Hiroshima, Japan
| | - L Bannach Jardim
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Departamento de Medicina Interna, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - M L Saraiva-Pereira
- Medical Genetics Service, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil.,Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - J Vasconcelos
- Serviço de Neurologia, Hospital do Divino Espírito Santo, Ponta Delgada, Açores, Portugal
| | - C Santos
- Departamento Biologia Animal, Biologia Vegetal i Ecologia, Unitat d'Antropologia Biològica, Universitat Autònoma de Barcelona, Cerdanyola del Valles, Spain
| | - M Lima
- Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.,Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.,IBMC - Instituto de Biologia Molecular e Celular, Universidade do Porto, Porto, Portugal
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18
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de Mattos EP, Leotti VB, Soong B, Raposo M, Lima M, Vasconcelos J, Fussiger H, Souza GN, Kersting N, Furtado GV, Saute JAM, Camey SA, Saraiva‐Pereira ML, Jardim LB. Age at onset prediction in spinocerebellar ataxia type 3 changes according to population of origin. Eur J Neurol 2018; 26:113-120. [DOI: 10.1111/ene.13779] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 08/16/2018] [Indexed: 11/30/2022]
Affiliation(s)
- E. P. de Mattos
- Programa de Pós‐Graduação em Genética e Biologia Molecular Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
| | - V. B. Leotti
- Departamento de Estatística Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
| | - B.‐W. Soong
- Department of Neurology Shuang Ho Hospital Taipei Medical University School of Medicine Taipei Taiwan
| | - M. Raposo
- Faculdade de Ciências e Tecnologia Universidade dos Açores Ponta Delgada Açores
| | - M. Lima
- Faculdade de Ciências e Tecnologia Universidade dos Açores Ponta Delgada Açores
| | - J. Vasconcelos
- Serviço de Neurologia Hospital do Divino Espirito Santo (HDES) Ponta Delgada Açores Portugal
| | - H. Fussiger
- Programa de Pós‐Graduação em Saúde da Criança e do Adolescente Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
| | - G. N. Souza
- Programa de Pós‐Graduação em Ciências Médicas Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
| | - N. Kersting
- Programa de Pós‐Graduação em Ciências Médicas Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
| | - G. V. Furtado
- Programa de Pós‐Graduação em Genética e Biologia Molecular Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
| | - J. A. M. Saute
- Programa de Pós‐Graduação em Ciências Médicas Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
- Serviço de Genética Médica Hospital de Clínicas de Porto Alegre Porto Alegre Rio Grande do Sul
| | - S. A. Camey
- Departamento de Estatística Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
| | - M. L. Saraiva‐Pereira
- Programa de Pós‐Graduação em Genética e Biologia Molecular Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
- Serviço de Genética Médica Hospital de Clínicas de Porto Alegre Porto Alegre Rio Grande do Sul
- Departamento de Bioquímica Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
| | - L. B. Jardim
- Programa de Pós‐Graduação em Genética e Biologia Molecular Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
- Programa de Pós‐Graduação em Ciências Médicas Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul
- Serviço de Genética Médica Hospital de Clínicas de Porto Alegre Porto Alegre Rio Grande do Sul
- Departamento de Medicina Interna Universidade Federal do Rio Grande do Sul Porto Alegre Rio Grande do Sul Brazil
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Fateixa S, Raposo M, Nogueira H, Trindade T. A general strategy to prepare SERS active filter membranes for extraction and detection of pesticides in water. Talanta 2018; 182:558-566. [DOI: 10.1016/j.talanta.2018.02.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 02/01/2018] [Accepted: 02/04/2018] [Indexed: 11/28/2022]
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20
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Lima M, Raposo M. Towards the Identification of Molecular Biomarkers of Spinocerebellar Ataxia Type 3 (SCA3)/Machado-Joseph Disease (MJD). Adv Exp Med Biol 2018; 1049:309-319. [PMID: 29427111 DOI: 10.1007/978-3-319-71779-1_16] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Whereas spinocerebellar ataxia type 3 (SCA3)/Machado-Joseph disease (MJD) remains an untreatable disorder, disease-modifying compounds have begun being tested in the context of clinical trials; their success is dependent on the sensitivity of the methods used to measure subtle therapeutic benefits. Thus, efforts are being made to propose a battery of potential outcome measures, including molecular biomarkers (MBs), which remain to be identified; MBs are particularly pertinent if SCA3 trials are expected to enroll preataxic subjects. Recently, promising candidate MBs of SCA3 have emerged from gene expression studies. In this chapter we provide a synthesis of the cross-sectional and pilot longitudinal studies of blood-based transcriptional biomarkers conducted so far. Other alterations with potential to track the progression of SCA3, such as those involving mitochondrial DNA (mtDNA) are also referred. It is expected that a set of molecular biomarkers can be identified; these will be used in complementarity with clinical and imaging markers to fully track SCA3, from its preataxic phase to the disease stage.
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Affiliation(s)
- Manuela Lima
- Departamento de Biologia, Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal. .,Instituto de Investigação e Inovação em Saúde (I3S), Universidade do Porto, Porto, Portugal. .,Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal.
| | - Mafalda Raposo
- Departamento de Biologia, Faculdade de Ciências e Tecnologia, Universidade dos Açores, Ponta Delgada, Portugal.,Instituto de Investigação e Inovação em Saúde (I3S), Universidade do Porto, Porto, Portugal.,Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
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21
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Guimarães MJ, Winck JC, Conde B, Mineiro A, Raposo M, Moita J, Marinho A, Silva JM, Pires N, André S, Loureiro C. Prevalence of late-onset pompe disease in Portuguese patients with diaphragmatic paralysis - DIPPER study. Rev Port Pneumol (2006) 2017; 23:208-215. [PMID: 28499810 DOI: 10.1016/j.rppnen.2017.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 01/24/2017] [Accepted: 02/15/2017] [Indexed: 11/28/2022] Open
Abstract
Pompe disease is a rare autosomal recessive neuromuscular disorder caused by acid α-glucosidase enzyme (GAA) deficiency and divided into two distinct variants, infantile- and late-onset. The late-onset variant is characterized by a spectrum of phenotypic variation that may range from asymptomatic, to reduced muscle strength and/or diaphragmatic paralysis. Since muscle strength loss is characteristic of several different conditions, which may also cause diaphragmatic paralysis, a protocol was created to search for the diagnosis of Pompe disease and exclude other possible causes. METHODS We collected a sample size of 18 patients (10 females, 8 males) with a median age of 60 years and diagnosis of diaphragmatic paralysis of unknown etiology, followed in the Pulmonology outpatient consultation of 9 centers in Portugal, over a 24-month study period. We evaluated data from patient's clinical and demographic characteristics as well as complementary diagnostic tests including blood tests, imaging, neurophysiologic and respiratory function evaluation. All patients were evaluated for GAA activity with DBS (dried blood test) or serum quantification and positive results confirmed by serum quantification and sequencing. RESULTS Three patients were diagnosed with Pompe's disease and recommended for enzyme replacement therapy. The prevalence of Pompe, a rare disease, in our diaphragmatic paralysis patient sample was 16.8%. CONCLUSION We conclude that DBS test for GAA activity should be recommended for all patients with diaphragmatic paralysis which, despite looking at all the most common causes, remains of unknown etiology; this would improve both the timing and accuracy of diagnosis for Pompe disease in this patient population. Accurate diagnosis will lead to improved care for this rare, progressively debilitating but treatable neuromuscular disease.
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Affiliation(s)
- M J Guimarães
- Hospital Guimarães, Centro Hospitalar do Alto Ave, Guimarães, Portugal.
| | - J C Winck
- Universidade do Porto, Porto, Portugal
| | - B Conde
- Centro Hospitalar de Trás-os-Montes e Alto Douro, Vila Real, Portugal
| | - A Mineiro
- Hospital de Santa Marta, Centro Hospitalar de Lisboa Central, Lisboa, Portugal
| | - M Raposo
- Hospital Egas Moniz, Centro Hospitalar de Lisboa Ocidental, Lisboa, Portugal
| | - J Moita
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - A Marinho
- Centro Hospitalar de São João, Porto, Portugal
| | - J M Silva
- Hospital Sousa Martins, Unidade Local de Saúde da Guarda, Guarda, Portugal
| | - N Pires
- Hospital de Santa Maria Maior, Barcelos, Portugal
| | - S André
- Centro Hospitalar do Porto, Porto, Portugal
| | - C Loureiro
- Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
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22
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Manuela M, Raposo M, Herbivo C, Hugues V, Clermont G, Castro MCR, Comel A, Blanchard-Desce M. Synthesis, Fluorescence, and Two-Photon Absorption Properties of Push-Pull 5-Arylthieno[3,2-b]thiophene Derivatives. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600806] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. Manuela
- Center of Chemistry; University of Minho, Campus of Gualtar; 4710-057 Braga Portugal
| | - M. Raposo
- Center of Chemistry; University of Minho, Campus of Gualtar; 4710-057 Braga Portugal
| | - Cyril Herbivo
- Center of Chemistry; University of Minho, Campus of Gualtar; 4710-057 Braga Portugal
| | - Vincent Hugues
- Univ. Bordeaux; Institut des Sciences Moléculaires (UMR 5255 CNRS); 33405 Talence France
| | - Guillaume Clermont
- Univ. Bordeaux; Institut des Sciences Moléculaires (UMR 5255 CNRS); 33405 Talence France
| | - M. Cidália R. Castro
- Center of Chemistry; University of Minho, Campus of Gualtar; 4710-057 Braga Portugal
| | - Alain Comel
- Université de Lorraine; Institut Jean Barriol; Laboratoire de Chimie et Physique - Analyse Multi-échelles des Milieux Complexes; 57048 Metz Cedex France
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23
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Melo ARV, Ramos A, Kazachkova N, Raposo M, Bettencourt BF, Rendeiro AR, Kay T, Vasconcelos J, Bruges-Armas J, Lima M. Triplet Repeat Primed PCR (TP-PCR) in Molecular Diagnostic Testing for Spinocerebellar Ataxia Type 3 (SCA3). Mol Diagn Ther 2016; 20:617-622. [DOI: 10.1007/s40291-016-0235-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Bettencourt C, Moss DH, Flower M, Wiethoff S, Brice A, Goizet C, Stevanin G, Koutsis G, Karadima G, Panas M, Yescas-Gómez P, García-Velázquez LE, Alonso-Vilatela ME, Lima M, Raposo M, Traynor B, Sweeney M, Wood N, Giunti P, Durr A, Holmans P, Houlden H, Tabrizi SJ, Jones L. B48 DNA repair pathways as a common genetic mechanism modulating the age at onset in polyglutamine diseases. J Neurol Neurosurg Psychiatry 2016. [DOI: 10.1136/jnnp-2016-314597.79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bettencourt C, Hensman‐Moss D, Flower M, Wiethoff S, Brice A, Goizet C, Stevanin G, Koutsis G, Karadima G, Panas M, Yescas‐Gómez P, García‐Velázquez LE, Alonso‐Vilatela ME, Lima M, Raposo M, Traynor B, Sweeney M, Wood N, Giunti P, Durr A, Holmans P, Houlden H, Tabrizi SJ, Jones L. DNA repair pathways underlie a common genetic mechanism modulating onset in polyglutamine diseases. Ann Neurol 2016; 79:983-90. [PMID: 27044000 PMCID: PMC4914895 DOI: 10.1002/ana.24656] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 03/30/2016] [Accepted: 03/30/2016] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The polyglutamine diseases, including Huntington's disease (HD) and multiple spinocerebellar ataxias (SCAs), are among the commonest hereditary neurodegenerative diseases. They are caused by expanded CAG tracts, encoding glutamine, in different genes. Longer CAG repeat tracts are associated with earlier ages at onset, but this does not account for all of the difference, and the existence of additional genetic modifying factors has been suggested in these diseases. A recent genome-wide association study (GWAS) in HD found association between age at onset and genetic variants in DNA repair pathways, and we therefore tested whether the modifying effects of variants in DNA repair genes have wider effects in the polyglutamine diseases. METHODS We assembled an independent cohort of 1,462 subjects with HD and polyglutamine SCAs, and genotyped single-nucleotide polymorphisms (SNPs) selected from the most significant hits in the HD study. RESULTS In the analysis of DNA repair genes as a group, we found the most significant association with age at onset when grouping all polyglutamine diseases (HD+SCAs; p = 1.43 × 10(-5) ). In individual SNP analysis, we found significant associations for rs3512 in FAN1 with HD+SCAs (p = 1.52 × 10(-5) ) and all SCAs (p = 2.22 × 10(-4) ) and rs1805323 in PMS2 with HD+SCAs (p = 3.14 × 10(-5) ), all in the same direction as in the HD GWAS. INTERPRETATION We show that DNA repair genes significantly modify age at onset in HD and SCAs, suggesting a common pathogenic mechanism, which could operate through the observed somatic expansion of repeats that can be modulated by genetic manipulation of DNA repair in disease models. This offers novel therapeutic opportunities in multiple diseases. Ann Neurol 2016;79:983-990.
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Affiliation(s)
- Conceição Bettencourt
- Department of Molecular Neuroscience, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
- Department of Clinical and Experimental Epilepsy, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
| | - Davina Hensman‐Moss
- Department of Neurodegenerative Disease, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
| | - Michael Flower
- Department of Neurodegenerative Disease, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
| | - Sarah Wiethoff
- Department of Molecular Neuroscience, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
- Center for Neurology and Hertie Institute for Clinical Brain ResearchEberhard‐Karls‐UniversityTübingenGermany
| | - Alexis Brice
- Inserm U 1127, CNRS UMR 7225, Sorbonne UniversitésUPMC University Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière (ICM)ParisFrance
- APHP, Department of GeneticsUniversity Hospital Pitié‐Salpêtrière75013 ParisFrance
| | - Cyril Goizet
- Université Bordeaux, Laboratoire Maladies Rares: Génétique et MétabolismeINSERM1211BordeauxFrance
- CHU Pellegrin, Service de Génétique Médicale, F‐33000BordeauxFrance
| | - Giovanni Stevanin
- Inserm U 1127, CNRS UMR 7225, Sorbonne UniversitésUPMC University Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière (ICM)ParisFrance
- Ecole Pratique des Hautes Etudes75014 ParisFrance
| | - Georgios Koutsis
- Neurogenetics Unit, 1st Department of NeurologyUniversity of Athens Medical School, Eginition Hospital115 28 AthensGreece
| | - Georgia Karadima
- Neurogenetics Unit, 1st Department of NeurologyUniversity of Athens Medical School, Eginition Hospital115 28 AthensGreece
| | - Marios Panas
- Neurogenetics Unit, 1st Department of NeurologyUniversity of Athens Medical School, Eginition Hospital115 28 AthensGreece
| | - Petra Yescas‐Gómez
- Neurogenetics Department, National Institute of Neurology and Neurosurgery“Manuel Velasco Suárez”Mexico City CP14269Mexico
| | | | - María Elisa Alonso‐Vilatela
- Neurogenetics Department, National Institute of Neurology and Neurosurgery“Manuel Velasco Suárez”Mexico City CP14269Mexico
| | - Manuela Lima
- Department of BiologyUniversity of the Azores9500‐321 Ponta DelgadaPortugal
- Instituto de Investigação e Inovação em SaúdeUniversidade do Porto4150‐180 PortoPortugal
- Institute for Molecular and Cell Biology (IBMC)University of Porto4150‐180 PortoPortugal
| | - Mafalda Raposo
- Department of BiologyUniversity of the Azores9500‐321 Ponta DelgadaPortugal
- Instituto de Investigação e Inovação em SaúdeUniversidade do Porto4150‐180 PortoPortugal
- Institute for Molecular and Cell Biology (IBMC)University of Porto4150‐180 PortoPortugal
| | - Bryan Traynor
- Laboratory of Neurogenetics, National Institute of AgingNIHBethesdaMD 20892, USA
| | - Mary Sweeney
- Neurogenetics Unit, National Hospital for Neurology and NeurosurgeryUniversity College London HospitalsLondon WC1N 3BGUnited Kingdom
| | - Nicholas Wood
- Department of Molecular Neuroscience, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
| | - Paola Giunti
- Department of Molecular Neuroscience, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
- Ataxia Center, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
| | | | - Alexandra Durr
- Inserm U 1127, CNRS UMR 7225, Sorbonne UniversitésUPMC University Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière (ICM)ParisFrance
- APHP, Department of GeneticsUniversity Hospital Pitié‐Salpêtrière75013 ParisFrance
| | - Peter Holmans
- MRC Centre for Neuropsychiatric Genetics and Genomics, Institute of Psychological Medicine and Clinical NeurosciencesCardiff UniversityCardiffCF24 4HQUnited Kingdom
| | - Henry Houlden
- Department of Molecular Neuroscience, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
- Neurogenetics Unit, National Hospital for Neurology and NeurosurgeryUniversity College London HospitalsLondon WC1N 3BGUnited Kingdom
| | - Sarah J. Tabrizi
- Department of Neurodegenerative Disease, Institute of NeurologyUniversity College LondonLondon WC1N 3BGUnited Kingdom
| | - Lesley Jones
- MRC Centre for Neuropsychiatric Genetics and Genomics, Institute of Psychological Medicine and Clinical NeurosciencesCardiff UniversityCardiffCF24 4HQUnited Kingdom
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Raposo M, Bettencourt C, Ramos A, Kazachkova N, Vasconcelos J, Kay T, Bruges-Armas J, Lima M. Promoter Variation and Expression Levels of Inflammatory Genes IL1A, IL1B, IL6 and TNF in Blood of Spinocerebellar Ataxia Type 3 (SCA3) Patients. Neuromolecular Med 2016; 19:41-45. [PMID: 27246313 DOI: 10.1007/s12017-016-8416-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 05/25/2016] [Indexed: 12/11/2022]
Abstract
Age at onset in spinocerebellar ataxia type 3 (SCA3/MJD) is incompletely explained by the size of the CAG tract at the ATXN3 gene, implying the existence of genetic modifiers. A role of inflammation in SCA3 has been postulated, involving altered cytokines levels; promoter variants leading to alterations in cytokines expression could influence onset. Using blood from 86 SCA3 patients and 106 controls, this work aimed to analyse promoter variation of four cytokines (IL1A, IL1B, IL6 and TNF) and to investigate the association between variants detected and their transcript levels, evaluated by quantitative PCR. Moreover, the effect of APOE isoforms, known to modulate cytokines, was investigated. Correlations between cytokine variants and onset were tested; the cumulative modifier effects of cytokines and APOE were analysed. Patients carrying the IL6*C allele had a significant earlier onset (4 years in average) than patients carrying the G allele, in agreement with lower mRNA levels produced by IL6*C carriers. The presence of APOE*ɛ2 allele seems to anticipate onset in average 10 years in patients carrying the IL6*C allele; a larger number of patients will be needed to confirm this result. These results highlight the pertinence of conducting further research on the role of cytokines as SCA3 modulators, pointing to the presence of shared mechanisms involving IL6 and APOE.
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Affiliation(s)
- Mafalda Raposo
- Department of Biology, University of the Azores, Rua Mãe de Deus, Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal.
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal.
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.
| | - Conceição Bettencourt
- Department of Clinical and Experimental Epilepsy, UCL Institute of Neurology, London, UK
- Department of Molecular Neuroscience, UCL Institute of Neurology, London, UK
| | - Amanda Ramos
- Department of Biology, University of the Azores, Rua Mãe de Deus, Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Nadiya Kazachkova
- Department of Biology, University of the Azores, Rua Mãe de Deus, Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - João Vasconcelos
- Department of Neurology, Hospital do Divino Espírito Santo, Ponta Delgada, Portugal
| | - Teresa Kay
- Department of Clinical Genetics, Hospital of D. Estefania, Lisbon, Portugal
| | - Jácome Bruges-Armas
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
- SEEBMO, Hospital do Santo Espírito da Ilha Terceira, Angra do Heroísmo, Portugal
| | - Manuela Lima
- Department of Biology, University of the Azores, Rua Mãe de Deus, Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal
- Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
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27
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Ramos A, Raposo M, Milà M, Bettencourt C, Houlden H, Cisneros B, Magaña JJ, Bettencourt BF, Bruges-Armas J, Santos C, Lima M. Verification of Inter-laboratorial Genotyping Consistency in the Molecular Diagnosis of Polyglutamine Spinocerebellar Ataxias. J Mol Neurosci 2015; 58:83-7. [PMID: 26454745 DOI: 10.1007/s12031-015-0646-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Accepted: 08/24/2015] [Indexed: 10/22/2022]
Abstract
The polyglutamine spinocerebellar ataxias (SCAs) constitute a clinically and genetically heterogeneous group of rare late-onset neurodegenerative disorders, caused by CAG expansions in the coding region of the respective genes. Given their considerable clinical overlapping, differential diagnosis relies on molecular testing. Laboratory best practice guidelines for molecular genetic testing of the SCAs were released in 2010 by the European Molecular Genetics Quality Network, following the recognition of gross genotyping errors by some diagnostic laboratories. The main goal of this study was to verify the existence of inter-laboratorial consistency comparing genotypes for SCA1, SCA2, SCA3, SCA6 and SCA7 obtained by independent diagnostic laboratories. The individual impact of different methodological issues on the genotype for the several SCAs was also analysed. Four international collaborative diagnostic laboratories provided 79 samples and the respective SCA genotypes. Samples were genotyped in-house for all SCAs using an independent methodology; comparison of the allele size obtained with the one provided by the collaborative laboratories was performed. Globally, no significant differences were identified, a result which could be reflecting the fulfilment of recommendations for the molecular testing of SCAs and demonstrating an improvement in genotyping accuracy.
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Affiliation(s)
- Amanda Ramos
- Department of Biology/CIRN, University of the Azores, Rua da Mãe de Deus - Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal. .,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal. .,Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.
| | - Mafalda Raposo
- Department of Biology/CIRN, University of the Azores, Rua da Mãe de Deus - Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal.,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Montserrat Milà
- Department of Biochemistry and Molecular Genetics, Hospital Clínic and IDIBAPS, Barcelona, Spain
| | | | - Henry Houlden
- Department of Molecular Neuroscience, UCL Institute of Neurology, London, England
| | - Bulmaro Cisneros
- Department of Genetics and Molecular Biology, Center of Research and Advanced Studies (CINVESTAV-IPN), Mexico City, Mexico
| | - Jonathan J Magaña
- Laboratory of Genomic Medicine, Department of Genetics, National Rehabilitation Institute (INR), Mexico City, Mexico
| | - Bruno Filipe Bettencourt
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.,Hospital de Santo Espírito da Ilha Terceira, SEEBMO, Angra do Heroísmo, Portugal
| | - Jácome Bruges-Armas
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.,Hospital de Santo Espírito da Ilha Terceira, SEEBMO, Angra do Heroísmo, Portugal
| | - Cristina Santos
- Unitat d'Antropologia Biològica, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - Manuela Lima
- Department of Biology/CIRN, University of the Azores, Rua da Mãe de Deus - Apartado 1422, 9501-801, Ponta Delgada, Azores, Portugal.,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
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28
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Raposo M, Ramos A, Bettencourt C, Lima M. Replicating studies of genetic modifiers in spinocerebellar ataxia type 3: can homogeneous cohorts aid? Brain 2015; 138:e398. [PMID: 26173860 DOI: 10.1093/brain/awv206] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Mafalda Raposo
- 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal
| | - Amanda Ramos
- 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal
| | | | - Manuela Lima
- 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal 1 Department of Biology, University of the Azores, Ponta Delgada, Portugal
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29
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Duarte AA, Abegão LMG, Ribeiro JHF, Lourenço JP, Ribeiro PA, Raposo M. Study of in situ adsorption kinetics of polyelectrolytes and liposomes using quartz crystal microbalance: Influence of experimental layout. Rev Sci Instrum 2015; 86:063901. [PMID: 26133844 DOI: 10.1063/1.4921715] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Quartz Crystal Microbalance (QCM) is a widely used technique to characterize adsorption/desorption phenomena at the solid/liquid interface. However, the obtained adsorption/desorption kinetics curves are often not reproducible and present some noise and long term fluctuations. In this work, the accuracy of a commercial QCM to measure the adsorbed amount of polyelectrolytes and biological molecules was evaluated in terms of experimental QCM configurations with respect to quality, stability, and reproducibility of the measured data. Evaluation consisted in comparing the adsorption kinetics curves of the cationic polyelectrolyte poly(ethyleneimine) and the anionic 1,2-dipalmitoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (sodium salt) liposomes, when setting the quartz crystal surface in stationary horizontal open, stationary horizontal closed, stationary vertical open, continuous vertical closed, and stationary vertical closed measuring configuration. For this last configuration, a new cell was designed and implemented. The analysis of the kinetics curves revealed that horizontal modes are more unstable when subjected to fostering noise due to the mechanical vibrations and lead to resonance frequency shift. This shift is caused by the measurement of non-adsorbed molecules which are deposited on the quartz crystal due to gravity force. The vertical modes proved to be more reproducible and reliable.
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Affiliation(s)
- A A Duarte
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - L M G Abegão
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - J H F Ribeiro
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - J P Lourenço
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - P A Ribeiro
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - M Raposo
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, FCT, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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30
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Raposo M, Bettencourt C, Maciel P, Gao F, Ramos A, Kazachkova N, Vasconcelos J, Kay T, Rodrigues AJ, Bettencourt B, Bruges-Armas J, Geschwind D, Coppola G, Lima M. Novel candidate blood-based transcriptional biomarkers of Machado-Joseph disease. Mov Disord 2015; 30:968-75. [PMID: 25914309 DOI: 10.1002/mds.26238] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 01/27/2015] [Accepted: 03/02/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Machado-Joseph disease (or spinocerebellar ataxia type 3) is a late-onset polyglutamine neurodegenerative disorder caused by a mutation in the ATXN3 gene, which encodes for the ubiquitously expressed protein ataxin-3. Previous studies on cell and animal models have suggested that mutated ataxin-3 is involved in transcriptional dysregulation. Starting with a whole-transcriptome profiling of peripheral blood samples from patients and controls, we aimed to confirm abnormal expression profiles in Machado-Joseph disease and to identify promising up-regulated genes as potential candidate biomarkers of disease status. METHODS The Illumina Human V4-HT12 array was used to measure transcriptome-wide gene expression in peripheral blood samples from 12 patients and 12 controls. Technical validation and validation in an independent set of samples were performed by quantitative real-time polymerase chain reaction (PCR). RESULTS Based on the results from the microarray, twenty six genes, found to be up-regulated in patients, were selected for technical validation by quantitative real-time PCR (validation rate of 81% for the up-regulation trend). Fourteen of these were further tested in an independent set of 42 patients and 35 controls; 10 genes maintained the up-regulation trend (FCGR3B, CSR2RA, CLC, TNFSF14, SLA, P2RY13, FPR2, SELPLG, YIPF6, and GPR96); FCGR3B, P2RY13, and SELPLG were significantly up-regulated in patients when compared with controls. CONCLUSIONS Our findings support the hypothesis that mutated ataxin-3 is associated with transcription dysregulation, detectable in peripheral blood cells. Furthermore, this is the first report suggesting a pool of up-regulated genes in Machado-Joseph disease that may have the potential to be used for fine phenotyping of this disease. © 2015 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Mafalda Raposo
- Centre of Research in Natural Resources (CIRN), University of the Azores, Ponta Delgada, Portugal.,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | | | - Patrícia Maciel
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Fuying Gao
- Departments of Psychiatry and Neurology, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Amanda Ramos
- Centre of Research in Natural Resources (CIRN), University of the Azores, Ponta Delgada, Portugal.,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - Nadiya Kazachkova
- Centre of Research in Natural Resources (CIRN), University of the Azores, Ponta Delgada, Portugal.,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
| | - João Vasconcelos
- Department of Neurology, Hospital do Divino Espírito Santo, Ponta Delgada, Portugal
| | - Teresa Kay
- Department of Clinical Genetics, Hospital of D. Estefania, Lisbon, Portugal
| | - Ana João Rodrigues
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Bruno Bettencourt
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.,Hospital de Santo Espírito da Ilha Terceira, SEEBMO, Angra do Heroísmo, Portugal
| | - Jácome Bruges-Armas
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.,Hospital de Santo Espírito da Ilha Terceira, SEEBMO, Angra do Heroísmo, Portugal
| | - Daniel Geschwind
- Departments of Psychiatry and Neurology, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Giovanni Coppola
- Departments of Psychiatry and Neurology, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California Los Angeles, Los Angeles CA, USA
| | - Manuela Lima
- Centre of Research in Natural Resources (CIRN), University of the Azores, Ponta Delgada, Portugal.,Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal
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Gomes PJ, Ferraria AM, Botelho do Rego AM, Hoffmann SV, Ribeiro PA, Raposo M. Energy Thresholds of DNA Damage Induced by UV Radiation: An XPS Study. J Phys Chem B 2015; 119:5404-11. [DOI: 10.1021/acs.jpcb.5b01439] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- P. J. Gomes
- CEFITEC,
Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - A. M. Ferraria
- Centro
de Química-Física Molecular and IN, Instituto Superior
Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - A. M. Botelho do Rego
- Centro
de Química-Física Molecular and IN, Instituto Superior
Técnico, Universidade de Lisboa, 1049-001 Lisboa, Portugal
| | - S. V. Hoffmann
- ISA,
Department of Physics and Astronomy, Aarhus University, Ny Munkegade
120, Building 1520, DK-8000 Aarhus C, Denmark
| | - P. A. Ribeiro
- CEFITEC,
Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - M. Raposo
- CEFITEC,
Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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32
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Cymbron T, Mendes P, Ramos A, Raposo M, Kazachkova N, Medeiros AM, Bruges-Armas J, Bourbon M, Lima M. Familial hypercholesterolemia: Molecular characterization of possible cases from the Azores Islands (Portugal). Meta Gene 2014; 2:638-45. [PMID: 25606447 PMCID: PMC4287853 DOI: 10.1016/j.mgene.2014.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Revised: 07/30/2014] [Accepted: 08/15/2014] [Indexed: 01/17/2023] Open
Abstract
Familial hypercholesterolemia (FH) is an autosomal dominant disorder of the cholesterol metabolism, which constitutes a risk factor for coronary arterial disease (CAD). In the Azores Islands (Portugal), where mortality from CAD doubles its rate comparatively to the rest of the country and where a high frequency of dyslipidemia has been reported, the prevalence and distribution of FH remain unknown. The molecular characterization of a group of 33 possible cases of FH of Azorean background was undertaken in this study. A DNA array was initially used to search mutations in the LDLR, APOB and PCSK9 loci in 10 unrelated possible cases of FH. No mutations were detected in the array; after sequencing the full LDLR gene, 18 variants were identified, corresponding to two missense (c.806G > A; c.1171G > A) and sixteen synonymous alterations. Six of the synonymous variants which are consistently described in the literature as associated with altered cholesterol levels were used to build haplotypes. The most frequent haplotype corresponded to TTCGCC (45%), a “risk” haplotype, formed exclusively by alleles that were reported to increase cholesterol levels. Some of the variants detected in the full sequencing of the LDLR gene fell within the ligand-binding domain of this gene, defined by exons 2 to 6. To add information as to the role of such variants, these exons were sequenced in the remaining 23 possible FH cases. Two missense alterations (c.185C > T; c.806G > A) were found in this subset of possible FH cases. The missense alteration c.185C > T, identified in one individual, is novel for the Portuguese population. In silico analysis was not conclusive for this alteration, whose role will have to be further investigated. This study represents the first approach to the establishment of the mutational profile of FH in the Azores Islands.
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Affiliation(s)
- Teresa Cymbron
- Centre of Research in Natural Resources (CIRN), Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal ; Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal
| | - Patrícia Mendes
- The Azores School of New Technologies (ENTA), 9504-540 Ponta Delgada, Azores, Portugal
| | - Amanda Ramos
- Centre of Research in Natural Resources (CIRN), Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal ; Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal
| | - Mafalda Raposo
- Centre of Research in Natural Resources (CIRN), Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal ; Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal
| | - Nadiya Kazachkova
- Centre of Research in Natural Resources (CIRN), Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal ; Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal
| | - Ana Margarida Medeiros
- Grupo de Investigação Cardiovascular, Unidade I&D, Departamento de Promoção da Saúde e Prevenção de Doenças Não Transmissíveis, Instituto Nacional de Saúde Dr. Ricardo Jorge, 1649-040 Lisboa, Portugal ; Centre for Biodiversity, Functional and Integrative Genomics (BioFIG), Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal
| | - Jácome Bruges-Armas
- Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal ; Specialized Service of Epidemiology and Molecular Biology (SEEBMO), Hospital of Santo Espírito, 9700-049 Angra do Heroísmo, Azores, Portugal
| | - Mafalda Bourbon
- Grupo de Investigação Cardiovascular, Unidade I&D, Departamento de Promoção da Saúde e Prevenção de Doenças Não Transmissíveis, Instituto Nacional de Saúde Dr. Ricardo Jorge, 1649-040 Lisboa, Portugal ; Centre for Biodiversity, Functional and Integrative Genomics (BioFIG), Faculty of Sciences, University of Lisboa, 1749-016 Lisboa, Portugal
| | - Manuela Lima
- Centre of Research in Natural Resources (CIRN), Department of Biology, University of the Azores, 9501-801 Ponta Delgada, Azores, Portugal ; Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150-180 Porto, Portugal
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Raposo M, Vasconcelos J, Bettencourt C, Kay T, Coutinho P, Lima M. Nystagmus as an early ocular alteration in Machado-Joseph disease (MJD/SCA3). BMC Neurol 2014; 14:17. [PMID: 24450306 PMCID: PMC3901765 DOI: 10.1186/1471-2377-14-17] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 11/11/2013] [Accepted: 01/17/2014] [Indexed: 11/30/2022] Open
Abstract
Background Machado-Joseph disease (MJD), also named spinocerebellar ataxia type 3 (SCA3) is the most common autosomal dominant ataxia worldwide. Although nystagmus is one of the most frequently reported ocular alterations in MJD patients its behaviour during the course of the disease, namely in its early stages, has only recently started to be investigated. The main goal of this work was to characterize the frequency of nystagmus in symptomatic and presymptomatic carriers of the MJD mutation, and investigate its usefulness as an early indicator of the disease. Methods We conducted an observational study of Azorean MJD family members, comprising a total of 158 subjects which underwent neurological evaluation. Sixty eight were clinically and molecularly diagnosed with MJD, 48 were confirmed asymptomatic carriers and 42 were confirmed non-carriers of the MJD mutation. The frequency of nystagmus was calculated for the 3 groups. Results Nystagmus was present in 88% of the MJD patients. Seventeen percent of the at-risk subjects with a carrier result in the molecular test and none of the 42 individuals who received a non-carrier test result displayed nystagmus (p < 0.006). Although not reaching statistical significance, symptomatic subjects showing nystagmus had a tendency for a higher length of the CAG tract in the expanded allele, when compared to individuals who did not have nystagmus. Conclusions The frequency of nystagmus in asymptomatic carriers and its absence in non-carriers of the mutation, suggests that nystagmus may appear before gait disturbance and can thus be considered an early sign of MJD.
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Affiliation(s)
- Mafalda Raposo
- Center of Research in Natural Resources (CIRN), University of the Azores, Rua Mãe de Deus, Apartado 1422, 9501-801 Ponta Delgada, Portugal.
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Santiago MG, Raposo M, Duarte C, Salvador MJ, Paiva A, da Silva JAP. AB0144 Increased frequency of interleukin-2 production by th17 and tc17 lymphocytes in peripheral blood of systemic sclerosis patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Santiago MG, Raposo M, Duarte C, Salvador MJ, Paiva A, da Silva JAP. AB0146 Increased frequency of th1 and tc1 lymphocytes producing tumor necrosis factor alpha in peripheral blood of late-stage systemic sclerosis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bettencourt C, Raposo M, Kazachkova N, Santos C, Kay T, Vasconcelos J, Maciel P, Donis KC, Saraiva-Pereira ML, Jardim LB, Sequeiros J, Bruges-Armas J, Lima M. Sequence analysis of 5' regulatory regions of the Machado-Joseph disease gene (ATXN3). Cerebellum 2013; 11:1045-50. [PMID: 22422287 DOI: 10.1007/s12311-012-0373-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Machado-Joseph disease (MJD) is a late-onset autosomal dominant neurodegenerative disorder, which is caused by a coding (CAG)(n) expansion in the ATXN3 gene (14q32.1). The number of CAG repeats in the expanded alleles accounts only for 50 to 75 % of onset variance, the remaining variation being dependent on other factors. Differential allelic expression of ATXN3 could contribute to the explanation of different ages at onset in patients displaying similar CAG repeat sizes. Variation in 5' regulatory regions of the ATXN3 gene may have the potential to influence expression levels and, ultimately, modulate the MJD phenotype. The main goal of this work was to analyze the extent of sequence variation upstream of the ATXN3 start codon. A fragment containing the core promoter and the 5' untranslated region (UTR) was sequenced and analyzed in 186 patients and 59 controls (490 chromosomes). In the core promoter, no polymorphisms were observed. In the 5' UTR, only one SNP (rs3814834) was found, but no improvements on the explanation of onset variance were observed, when adding its allelic state in a linear model. Accordingly, in silico analysis predicted that this SNP lays in a nonconserved position for CMYB binding. Therefore, no functional effect could be predicted for this variant.
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Affiliation(s)
- Conceição Bettencourt
- Institute for Molecular and Cell Biology (IBMC), University of Porto, Porto, Portugal.
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Ferreira Q, Gomes PJ, Ribeiro PA, Jones NC, Hoffmann SV, Mason NJ, Oliveira ON, Raposo M. Determination of degree of ionization of poly(allylamine hydrochloride) (PAH) and poly[1-[4-(3-carboxy-4 hydroxyphenylazo)benzene sulfonamido]-1,2-ethanediyl, sodium salt] (PAZO) in layer-by-layer films using vacuum photoabsorption spectroscopy. Langmuir 2013; 29:448-455. [PMID: 23215445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Electrostatic and hydrophobic interactions govern most of the properties of supramolecular systems, which is the reason determining the degree of ionization of macromolecules has become crucial for many applications. In this paper, we show that high-resolution ultraviolet spectroscopy (VUV) can be used to determine the degree of ionization and its effect on the electronic excitation energies of layer-by-layer (LbL) films of poly(allylamine hydrochloride) (PAH) and poly[1-[4-(3-carboxy-4 hydroxyphenylazo)benzene sulfonamido]-1,2-ethanediyl, sodium salt] (PAZO). A full assignment of the VUV peaks of these polyelectrolytes in solution and in cast or LbL films could be made, with their pH dependence allowing us to determine the pK(a) using the Henderson-Hasselbach equation. The pK(a) for PAZO increased from ca. 6 in solution to ca. 7.3 in LbL films owing to the charge transfer from PAH. Significantly, even using solutions at a fixed pH for PAH, the amount adsorbed on the LbL films still varied with the pH of the PAZO solutions due to these molecular-level interactions. Therefore, the procedure based on a comparison of VUV spectra from solutions and films obtained under distinct conditions is useful to determine the degree of dissociation of macromolecules, in addition to permitting interrogation of interface effects in multilayer films.
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Affiliation(s)
- Q Ferreira
- CEFITEC, Departamento de Física, Faculdade de Ciências e Tecnologia, UNL, Campus de Caparica, 2829-516, Caparica, Portugal
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Gonzalez C, Gomes E, Kazachkova N, Bettencourt C, Raposo M, Kay TT, MacLeod P, Vasconcelos J, Lima M. Psychological well-being and family satisfaction levels five years after being confirmed as a carrier of the Machado-Joseph disease mutation. Genet Test Mol Biomarkers 2012; 16:1363-8. [PMID: 23153003 PMCID: PMC3501113 DOI: 10.1089/gtmb.2011.0370] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The present study on long-term outcome of presymptomatic testing for Machado-Joseph disease (MJD) aimed to evaluate the psychological well-being and the familial satisfaction of subjects that 5 years prior received an unfavorable result in the predictive testing (PT). The study included 47 testees of Azorean origin (23 from the island of Flores and 24 from S. Miguel) that completed the fourth evaluation session of the MJD protocol, and undertook a neurological examination at the moment of participation in the study. Nearly 50% of testees were symptomatic at the time of the study. Psychological well-being of the 47 participants was evaluated using the Psychological General Well-Being Index (PGWB). The family satisfaction scale by adjectives was applied to obtain information on family dynamics. The average PGWB score of the total participants was of 73.3, a value indicative of psychological well-being. Nearly half of the testees presented scores indicating psychological well-being, whereas scores indicating moderate (28.9%) or severe (23.7%) stress were found in the remaining. The average score in the PGWB scale was lower in symptomatic than in asymptomatic subjects; moreover, the distinct distribution of the well-being categories seen in the two groups shows an impact of the appearance of first symptoms on the psychological state. Motives for undertaking the test, provided 5 years prior, failed to show an impact in well-being. The average score for familial satisfaction was of 134, a value compatible with high familial satisfaction, which represented the most frequent category (59.6%). Results demonstrate that well-being and family satisfaction need to be monitored in confirmed carriers of the MJD mutation. The inclusion of acceptance studies, after PT, as well as the development of acceptance training actions, should be of major importance to anticipate the possibility of psychological damage.
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Affiliation(s)
- Carlos Gonzalez
- Department of Clinical Psychology, Hospital Divino Espírito Santo, Ponta Delgada, Portugal
| | - Elisabete Gomes
- Center of Family Therapy and Systemic Intervention, Ponta Delgada, Portugal
| | - Nadiya Kazachkova
- Center of Research in Natural Resources (CIRN) and Department of Biology, University of the Azores, Ponta Delgada, Portugal
- Institute for Molecular and Cellular Biology (IBMC), University of Porto, Porto, Portugal
| | - Conceição Bettencourt
- Center of Research in Natural Resources (CIRN) and Department of Biology, University of the Azores, Ponta Delgada, Portugal
- Institute for Molecular and Cellular Biology (IBMC), University of Porto, Porto, Portugal
- Laboratory of Molecular Biology, “Instituto de Enfermedades Neurológicas,” “Fundación Socio-Sanitaria de Castilha-La Mancha,” Guadalajara, Spain
| | - Mafalda Raposo
- Center of Research in Natural Resources (CIRN) and Department of Biology, University of the Azores, Ponta Delgada, Portugal
| | - Teresa Taylor Kay
- Department of Medical Genetics, Hospital D. Estefânia, Lisboa, Portugal
| | - Patrick MacLeod
- Center for Biomedical Research, University of Victoria, Victoria, Canada
| | - João Vasconcelos
- Department of Neurology, Hospital of Divino Espírito Santo, Ponta Delgada, Portugal
| | - Manuela Lima
- Center of Research in Natural Resources (CIRN) and Department of Biology, University of the Azores, Ponta Delgada, Portugal
- Institute for Molecular and Cellular Biology (IBMC), University of Porto, Porto, Portugal
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Kazachkova N, Raposo M, Montiel R, Cymbron T, Bettencourt C, Silva-Fernandes A, Silva S, Maciel P, Lima M. Patterns of mitochondrial DNA damage in blood and brain tissues of a transgenic mouse model of Machado-Joseph disease. NEURODEGENER DIS 2012; 11:206-14. [PMID: 22832131 DOI: 10.1159/000339207] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 05/03/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Machado-Joseph disease (MJD) is an autosomal dominant spinocerebellar ataxia caused by a CAG tract expansions in the ATXN3 gene. Patterns of mitochondrial damage associated with pathological findings of brain tissues could provide molecular biomarkers of this disorder. OBJECTIVE The potential of mitochondrial DNA (mtDNA) damage as a biomarker of MJD progression was investigated using a transgenic mouse model. METHODS DNA was obtained from affected (pontine nuclei) and nonaffected tissues (hippocampus and blood) of transgenic animals of three distinct age groups: 8 weeks, before onset of the phenotype; 16 weeks, at onset, and 24 weeks, at well-established phenotype. Wild-type littermate mice, serving as controls, were analyzed for the same tissues and age groups. mtDNA damage was studied by fluorescence-based quantitative PCR in 84 transgenic and 93 wild-type samples. RESULTS A clear pattern of decrease in mtDNA copy number with age and accumulation of 3,867-bp deletions at the initial stages (both being more pronounced in transgenic mice) was observed. Pontine nuclei, the affected tissue in transgenic mice, displayed 1.5 times less copies of mtDNA than nonaffected brain tissue hippocampus (odds ratio = 1.21). Pontine nuclei displayed the highest percentage of mtDNA deletions (6.05% more in transgenic mice). CONCLUSION These results suggest that mtDNA damage is related to the initiation of the phenotype in transgenic mice; mtDNA 3,867-bp deletions may be a biomarker of the initial stages of the disease.
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Affiliation(s)
- Nadiya Kazachkova
- Center of Research in Natural Resources (CIRN), University of the Azores, Ponta Delgada, Portugal.
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Bettencourt C, Raposo M, Ros R, Montiel R, Bruges-Armas J, Lima M. Transcript diversity of Machado-Joseph disease gene (ATXN3) is not directly determined by SNPs in exonic or flanking intronic regions. J Mol Neurosci 2012; 49:539-43. [PMID: 22706685 DOI: 10.1007/s12031-012-9832-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 06/04/2012] [Indexed: 10/28/2022]
Abstract
Alternative splicing (AS) of pre-mRNA is an important regulatory mechanism that enables one gene to produce multiple mature transcripts and, therefore, multiple protein isoforms. Besides the information content of core splicing signals, additional cis-regulatory elements (splicing enhancers and silencers) are needed to precisely define exons. AS is well documented in ATXN3 gene, which encodes for ataxin-3 and, when mutated, is responsible for Machado-Joseph disease (MJD). By studying MJD patients and controls, we have previously identified 56 alternative transcript variants for this gene; some were predicted to encode "protective" ataxin-3 isoforms, making then pertinent to understand AS regulation. The present study aims to investigate the relationship between variation in ATXN3 cis-regulatory motifs and AS variants found for each individual. We have sequenced exonic and flanking intronic ATXN3 regions, in genomic DNA from MJD patients and controls previously studied. None of the 10 single nucleotide polymorphisms (SNPs) that were found was located in core splicing signals. In silico analysis showed those SNPs implied losses and gains of recognition motifs for splicing factors. Each particular allele was not directly reflected in alterations of the resulting splicing variants, indicating that AS cannot be determined solely by these cis-elements, but should result from a more complex mode of regulation.
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Affiliation(s)
- Conceição Bettencourt
- Institute for Molecular and Cell Biology (IBMC), University of Porto, 4150, Porto, Portugal.
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Bettencourt C, Santos C, Coutinho P, Rizzu P, Vasconcelos J, Kay T, Cymbron T, Raposo M, Heutink P, Lima M. Parkinsonian phenotype in Machado-Joseph disease (MJD/SCA3): a two-case report. BMC Neurol 2011; 11:131. [PMID: 22023810 PMCID: PMC3217914 DOI: 10.1186/1471-2377-11-131] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [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: 05/05/2011] [Accepted: 10/24/2011] [Indexed: 12/30/2022] Open
Abstract
Background Machado-Joseph disease (MJD), or spinocerebellar ataxia type 3 (SCA3), is an autosomal dominant neurodegenerative disorder of late onset, which is caused by a CAG repeat expansion in the coding region of the ATXN3 gene. This disease presents clinical heterogeneity, which cannot be completely explained by the size of the repeat tract. MJD presents extrapyramidal motor signs, namely Parkinsonism, more frequently than the other subtypes of autosomal dominant cerebellar ataxias. Although Parkinsonism seems to segregate within MJD families, only a few MJD patients develop parkinsonian features and, therefore, the clinical and genetic aspects of these rare presentations remain poorly investigated. The main goal of this work was to describe two MJD patients displaying the parkinsonian triad (tremor, bradykinesia and rigidity), namely on what concerns genetic variation in Parkinson's disease (PD) associated loci (PARK2, LRRK2, PINK1, DJ-1, SNCA, MAPT, APOE, and mtDNA tRNAGln T4336C). Case presentation Patient 1 is a 40 year-old female (onset at 30 years of age), initially with a pure parkinsonian phenotype (similar to the phenotype previously reported for her mother). Patient 2 is a 38 year-old male (onset at 33 years of age), presenting an ataxic phenotype with parkinsonian features (not seen either in other affected siblings or in his father). Both patients presented an expanded ATXN3 allele with 72 CAG repeats. No PD mutations were found in the analyzed loci. However, allelic variants previously associated with PD were observed in DJ-1 and APOE genes, for both patients. Conclusions The present report adds clinical and genetic information on this particular and rare MJD presentation, and raises the hypothesis that DJ-1 and APOE polymorphisms may confer susceptibility to the parkinsonian phenotype in MJD.
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Affiliation(s)
- Conceição Bettencourt
- Center of Research in Natural Resources, University of the Azores, Ponta Delgada, Portugal.
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Cymbron T, Raposo M, Kazachkova N, Bettencourt C, Silva F, Santos C, Dahmani Y, Lourenço P, Ferin R, Pavão ML, Lima M. Cross-sectional study of risk factors for atherosclerosis in the Azorean population. Ann Hum Biol 2011; 38:354-9. [PMID: 21322770 DOI: 10.3109/03014460.2011.553203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Atherosclerosis-a major cause of vascular disease, including ischemic heart disease (IHD), is a pathology that has a two-fold higher mortality rate in the Azorean Islands compared to mainland Portugal. AIM This cross-sectional study investigated the role of genetic variation in the prevalence of atherosclerosis in this population. SUBJECTS AND METHODS A total of 305 individuals were characterized for polymorphisms in eight susceptibility genes for atherosclerosis: ACE, PAI1, NOS3, LTA, FGB, ITGB3, PON1 and APOE. Data were analysed with respect to phenotypic characteristics such as blood pressure, lipid profile, life-style risk factors and familial history of myocardial infarction. RESULTS In the total sample, frequencies for hypercholestrolemic, hypertensive and obese individuals were 63.6%, 39.3% and 23.3%, respectively. The genetic profile was similar to that observed in other European populations, namely in mainland Portugal. No over-representation of risk alleles was evidenced in this sample. CONCLUSIONS One has to consider the possibility of an important non-genetic influence on the high cholesterolemia present in the Azorean population. Since diet is the most important life-style risk factor for dyslipidemia, studies aiming to evaluate the dietary characteristics of this population and its impact on serum lipid levels will be of major importance.
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Affiliation(s)
- Teresa Cymbron
- Center of Research in Natural Resources (CIRN), University of the Azores, Ponta Delgada, Portugal.
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Raposo M, Sousa P, Nemeth S, Couto AR, Santos MR, Pinheiro JP, Peixoto MJ, Oberkanins C, Kazachkova N, Cymbron T, Lima M, Bruges-Armas J. Polymorphism in cardiovascular diseases (CVD) susceptibility loci in the azores islands (Portugal). ACTA ACUST UNITED AC 2011. [DOI: 10.4236/ojgen.2011.13009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Ferin R, Correia C, Raposo M, Gonçalves B, Gonçalves C, Baptista J, Pavão M. MS269 PLASMA AMINOTHIOLS STATUS IN THE POPULATION OF THE ISLAND OF S ÃO JORGE (THE AZORES' ARCHIPELAGO, PORTUGAL). ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70770-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Gimenes LU, Ferraz ML, Araujo A, Fantinato Neto P, Chiarati MR, Mesquita LG, Arango JSP, Raposo M, Souza DC, Calomeni GD, Gardinal R, Rodriguez CLV, Trinca L, Meirelles FV, Baruselli PS. 273 OVUM PICKUP AT DIFFERENT TIMES OF A SYNCHRONIZED FOLLICULAR WAVE DID NOT AFFECT IVP IN BOS INDICUS, BOS TAURUS, OR BUBALUS BUBALIS. Reprod Fertil Dev 2010. [DOI: 10.1071/rdv22n1ab273] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
One important factor in the success of ovum pickup (OPU)/IVP in Bos taurus is the follicular status at OPU concerning the dominance period (Hendriksen et al. 2000 Theriogenology 53, 11-20). The hypothesis of the present study is that OPU performed after follicle deviation, when follicles show a mild level of atresia, improves competence for IVP in Nelore (NE), Holstein (HO), and buffaloes (BU). Objectives were to determine effects of OPU done at different times of synchronized follicular wave (1, 3, or 5 d after expected emergence) and of genetic group (NE, HO, and BU) on IVP. A total of 27 heifers (9 of each genetic group) were maintained in contemporary nutritional and environmental conditions during experiment, in a cross-over design, performed in 6 replicates. Recovered oocytes with at least one cumulus cell layer were matured in TCM-199 supplemented with 10% of FCS plus 50 μM of cysteamin and 0.3 mM of cystine, at 38.5°C with 5% CO2 in air for 24 h. IVF was done with 2 × 106 spermatozoa per mL of NE (for bovine oocytes) or BU semen (for BU oocytes), for 20 h at the same incubator conditions of IVM. After IVF, presumptive zygotes were denuded and cultured in SOF under the same previous atmosphere conditions. Medium was changed 3 d after IVF when cleavage rate (CR) was assessed. Blastocyst (BR) and hatching rates (HR) were evaluated 7 and 9 days after IVF, respectively. About 50% of hatched blastocysts were fixed until nuclei counting. Data were analyzed by ANOVA using the Proc Mixed model. No effects of interaction or time of synchronization were observed in any of the variables. Concerning genetic group, NE had better results than HO and BU (mean ± SEM / heifer / replicate), respectively, for visualized follicles (41.0a ± 2.1, 22.1b ± 1.3, 18.8b ± 0.9), total oocytes (37.1a ± 2.5, 15.4b ± 1.2, 14.8b ± 1.0), oocytes at IVM (30.8a ± 2.4, 10.7b ± 1.0, 7.9b ± 0.7), oocytes at IVC (18.7a ± 0.8, 8.0b ± 0.5, 7.5b ± 0.4), cleaved embryos (15.4a ± 0.7, 4.6b ± 0.4, 4.4b ± 0.3),CR(81.8a, 59.1b, 62.3b), blastocysts on Day 7 (5.1a ± 0.6, 1.0b ± 0.2, 0.6b ± 0.1), BR (25.8a, 13.6b, 9.1b), and hatched blastocysts on Day 9 (2.6a ± 0.4, 0.3b ± 0.1, 0.3b ± 0.1). Recovery rate and HR were greater for NE (89.4 and 50.6%, respectively) than for HO (73.3 and 23.2%), but neither differed from BU (82.8 and 31.9%). Also, the percentage of viable was greater for NE (83.0) than for HO (66.9) and BU (53.1). No effects were observed for nuclei counting (NE = 176.6 ± 5.3, HO = 168.9 ± 13.7 and BU = 206.1 ± 23.1). Results demonstrate that Nelore had a better efficiency for IVP than Holstein and buffaloes. OPU performed at different times of synchronized follicular wave did not influence IVP, conversely to the initial hypothesis of this study.
FAPESP (06/59550-6, 07/04782-2), Tortuga Cia Zootecnica®, Santa Adele and São Caetano Farms, LMMD, PCAPS, HOVET (Dr. Ubiraem Schalch), VRA, VNP (Prof. Dr. Francisco de Palma Rennó).
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Paula-Lopes FF, Mendes CM, Risolia PHB, Gonçalves JSA, Feitosa WB, Raposo M, Assumpção MEOA, Visintin JA. 353 CUMULUS CELLS RESPONSE TO HEAT SHOCK AND INSULIN-LIKE GROWTH FACTOR-I. Reprod Fertil Dev 2010. [DOI: 10.1071/rdv22n1ab353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Heat-stress induced maternal hyperthermia has been shown to compromise the series of events associated with oocyte growth and maturation reducing oocyte competence. Such events are regulated by a variety of growth factors and dynamic communication between the oocyte and its surrounding cumulus cells. The objective of the current study was to evaluate the modulatory effects of COCs quality and IGF-I on mitochondrial membrane potential (MMP) and apoptosis in cumulus cells induced by heat shock. In this study high (≥3 layers of compact cumulus cells and homogeneous cytoplasm) and low-grade COCs (<3 layers of less compact cumulus cells and irregular cytoplasm) derived from slaughterhouse ovaries were exposed to control (CTR: 39°C) or heat shock (HS: 41°C) treatments in the presence of 0 or 100 ng mL-1 IGF-I during the first 12 h of in vitro maturation (12 h-IVM). Immediately after 12 h-IVM COCs were denuded by repeated pipetting and cumulus cells evaluated for MMP (MitoProbe JC-1 assay kit. JC-1 is a cationic dye that exhibits potential-depend accumulation in the mitochondria) and apoptosis (Annexin V-FITC and propidium iodide) by flow cytometry (Guava EasyCyte Mini Flow Cytometry System, Millipore, Billerica, MA, USA). This factorial experiment was replicated 4 times using 75-100 COCs per treatment. Data were subjected to three-way analysis of variance using the General Linear Models procedure of SAS. Results are shown in Table 1. Exposure of high and low-grade COCs to HS reduced (P < 0.01) the percentage of cumulus cells carrying high MMP regardless of IGF-I. Even though HS caused cumulus cells mitochondrial membrane depolarization there was neither temperature nor COCs quality effect on cumulus cells apoptosis as indicated by the lack of phosphatidylserine (PS) translocation from the inner to the outer leaflet of the plasma membrane. On the other hand, addition of IGF-I to maturation medium reduced (P < 0.05) the percentage of cumulus cells labeled with Annexin V + PI regardless of COCs quality or temperature. There was no statistical interaction between COCs quality × IGF-I × temperature. In conclusion, exposure of COCs to HS during 12 h-IVM caused cumulus cells mitochondrial depolarization without inducing apoptosis. It is possible that a period longer than 12 h is required for most PS translocation to occur in cumulus cells. Moreover, IGF-I exerted protective effect reducing cumulus cells late apoptosis/necrosis events.
Table 1.Effect of heat-shock and IGF-I on cumulus cells mitochondrial membrane potential and apoptosis. Results are least-squares means ± SEM.
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Trindade H, Dias C, Raposo M, Portela JL. Double brachial plexus block: a case report. Reg Anesth Pain Med 2007. [DOI: 10.1097/00115550-200709001-00118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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André S, Correia J, Raposo M, Matos C, Nogueira F, Abreu M. Pulmonary carcinoid tumours. Breathe (Sheff) 2006. [DOI: 10.1183/18106838.0204.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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André S, Correia J, Raposo M, Matos C, Nogueira F, Abreu M. A 70-year-old male with chronic diarrhoea and flushing. Breathe (Sheff) 2006. [DOI: 10.1183/18106838.0204.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Mota R, Parafita R, Maneira MJP, Mason NJ, Garcia G, Ribeiro PA, Raposo M, Limão-Vieira P. VUV spectroscopy of water under cellular conditions. Radiat Prot Dosimetry 2006; 122:66-71. [PMID: 17169951 DOI: 10.1093/rpd/ncl388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The understanding of radiation damage within cells, and thence mutagenesis, depends upon a detailed knowledge of the spectroscopy and dissociation dynamics of water. Results of a new study of the electronic state spectroscopy of water, using synchrotron radiation are reported. In order to gain some insight into how the spectroscopy and dissociation dynamics of water is influenced by its environment we also report photo-absorption spectra of water within thin films of poly(o-methoxyaniline) which have been suggested as a good mimic for biological membranes in the cellular environment. Comparison of these spectra with those of gaseous water and condensed amorphous water ice suggest that water in such films is similar to gaseous water and does not show the blue shift suggested in some cellular models. The lowest energy of OH production from dissociation of water in the cellular environment may therefore be around 6.7 eV (185 nm).
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Affiliation(s)
- R Mota
- Laboratório de Colisões Atómicas e Moleculares, Departamento de Física, CEFITEC, FCT-Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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