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Choi EH, Kim MH, Park SJ. Targeting Mitochondrial Dysfunction and Reactive Oxygen Species for Neurodegenerative Disease Treatment. Int J Mol Sci 2024; 25:7952. [PMID: 39063194 PMCID: PMC11277296 DOI: 10.3390/ijms25147952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 07/18/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
Alzheimer's disease (AD) and Parkinson's disease (PD) are the most common neurodegenerative diseases, and they affect millions of people worldwide, particularly older individuals. Therefore, there is a clear need to develop novel drug targets for the treatment of age-related neurodegenerative diseases. Emerging evidence suggests that mitochondrial dysfunction and reactive oxygen species (ROS) generation play central roles in the onset and progression of neurodegenerative diseases. Mitochondria are key regulators of respiratory function, cellular energy adenosine triphosphate production, and the maintenance of cellular redox homeostasis, which are essential for cell survival. Mitochondrial morphology and function are tightly regulated by maintaining a balance among mitochondrial fission, fusion, biogenesis, and mitophagy. In this review, we provide an overview of the main functions of mitochondria, with a focus on recent progress highlighting the critical role of ROS-induced oxidative stress, dysregulated mitochondrial dynamics, mitochondrial apoptosis, mitochondria-associated inflammation, and impaired mitochondrial function in the pathogenesis of age-related neurodegenerative diseases, such as AD and PD. We also discuss the potential of mitochondrial fusion and biogenesis enhancers, mitochondrial fission inhibitors, and mitochondria-targeted antioxidants as novel drugs for the treatment of these diseases.
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Affiliation(s)
| | | | - Sun-Ji Park
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu 41061, Republic of Korea; (E.-H.C.); (M.-H.K.)
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Schulze J, Dhaliwal JK, Miller M, Quinn E, Wetherill L, Cook L. Factors Influencing Patient Disclosure of Parkinson's Disease Genetic Testing Results to Relatives. Mov Disord Clin Pract 2024; 11:786-794. [PMID: 38586948 PMCID: PMC11233843 DOI: 10.1002/mdc3.14043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/09/2024] [Accepted: 03/20/2024] [Indexed: 04/09/2024] Open
Abstract
BACKGROUND Persons with Parkinson's disease (PD) who have received genetic test results are faced with the decision of whether, and how, to share that information with family. Studies in other specialties have shown high rates of disclosure motivated by a sense of responsibility. Rates of, and attitudes surrounding, disclosure have yet to be reported in this population. OBJECTIVES To explore the disclosure practices and motivations of patients with PD regarding genetic test results, allowing insight to guide genetic counseling and navigation of test result discussions. METHODS A cross-sectional online survey was distributed to adults with PD and previous genetic test results. Survey questions assessed demographics, genetic testing results and delivery, sharing behaviors, perceptions of PD, and motivations and barriers to family disclosure. RESULTS Among respondents, 88.9% shared results with at least one family member, most often a child (73.5%) or sibling (65.4%). Seventy-four percent reported sharing results with someone outside of their family, most frequently a friend (88.4%). The most common motivation for disclosure was the perception that family members would want to know. Barriers to disclosure were lack of close relationships, understanding results, and perceived utility. CONCLUSIONS Disclosure rates in this PD population were consistent with those in previously reported populations. Motivations were anchored in perceptions of utility and family desire for information, suggesting a need to adjust patient education to improve retention and to explore family dynamics and perceptions of results.
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Affiliation(s)
- Jeanine Schulze
- Indiana University School of MedicineMedical and Molecular GeneticsIndianapolisIndianaUSA
| | | | - Mandy Miller
- Indiana University School of MedicineMedical and Molecular GeneticsIndianapolisIndianaUSA
| | - Emily Quinn
- Keck Graduate InstituteClaremontCaliforniaUSA
| | - Leah Wetherill
- Indiana University School of MedicineMedical and Molecular GeneticsIndianapolisIndianaUSA
| | - Lola Cook
- Indiana University School of MedicineMedical and Molecular GeneticsIndianapolisIndianaUSA
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3
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Cogan G, Daida K, Billingsley KJ, Tesson C, Forlani S, Jornea L, Arnaud L, Tissier L, LeGuern E, Singleton AB, Ferrien M, Gervais Bernard H, Lesage S, Blauwendraat C, Brice A. Long-read sequencing unravels the complexity of structural variants in PRKN in two individuals with early-onset Parkinson's disease. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.05.02.24306523. [PMID: 38746197 PMCID: PMC11092742 DOI: 10.1101/2024.05.02.24306523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Background PRKN biallelic pathogenic variants are the most common cause of autosomal recessive early-onset Parkinson's disease (PD). However, the variants responsible for suspected PRKN- PD individuals are not always identified with standard genetic testing. Objectives Identify the genetic cause in two siblings with a PRKN -PD phenotype using long-read sequencing (LRS). Methods The genetic investigation involved standard testing using successively multiple ligation probe amplification (MLPA), Sanger sequencing, targeted sequencing, whole-exome sequencing and LRS. Results MLPA and targeted sequencing identified one copy of exon four in PRKN but no other variants were identified. Subsequently, LRS unveiled a large deletion encompassing exon 3 to 4 on one allele and a duplication of exon 3 on the second allele; explaining the siblings' phenotype. MLPA could not identify the balanced rearrangement of exon 3. Conclusions This study highlights the potential utility of long-read sequencing in the context of unsolved typical PRKN- PD individuals.
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Bishay AE, Hughes NC, Zargari M, Paulo DL, Bishay S, Lyons AT, Morkos MN, Ball TJ, Englot DJ, Bick SK. Disparities in Access to Deep Brain Stimulation for Parkinson's Disease and Proposed Interventions: A Literature Review. Stereotact Funct Neurosurg 2024; 102:179-194. [PMID: 38697047 DOI: 10.1159/000538748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/28/2024] [Indexed: 05/04/2024]
Abstract
BACKGROUND Deep brain stimulation (DBS) is an effective therapy for Parkinson's disease (PD), but disparities exist in access to DBS along gender, racial, and socioeconomic lines. SUMMARY Women are underrepresented in clinical trials and less likely to undergo DBS compared to their male counterparts. Racial and ethnic minorities are also less likely to undergo DBS procedures, even when controlling for disease severity and other demographic factors. These disparities can have significant impacts on patients' access to care, quality of life, and ability to manage their debilitating movement disorders. KEY MESSAGES Addressing these disparities requires increasing patient awareness and education, minimizing barriers to equitable access, and implementing diversity and inclusion initiatives within the healthcare system. In this systematic review, we first review literature discussing gender, racial, and socioeconomic disparities in DBS access and then propose several patient, provider, community, and national-level interventions to improve DBS access for all populations.
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Affiliation(s)
- Anthony E Bishay
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA,
| | - Natasha C Hughes
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Michael Zargari
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Danika L Paulo
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Steven Bishay
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | | | - Mariam N Morkos
- Arizona College of Osteopathic Medicine, Glendale, Arizona, USA
| | - Tyler J Ball
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Dario J Englot
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Sarah K Bick
- Department of Neurological Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
- Department of Psychiatry, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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5
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Menon PJ, Sambin S, Criniere-Boizet B, Courtin T, Tesson C, Casse F, Ferrien M, Mariani LL, Carvalho S, Lejeune FX, Rebbah S, Martet G, Houot M, Lanore A, Mangone G, Roze E, Vidailhet M, Aasly J, Gan Or Z, Yu E, Dauvilliers Y, Zimprich A, Tomantschger V, Pirker W, Álvarez I, Pastor P, Di Fonzo A, Bhatia KP, Magrinelli F, Houlden H, Real R, Quattrone A, Limousin P, Korlipara P, Foltynie T, Grosset D, Williams N, Narendra D, Lin HP, Jovanovic C, Svetel M, Lynch T, Gallagher A, Vandenberghe W, Gasser T, Brockmann K, Morris HR, Borsche M, Klein C, Corti O, Brice A, Lesage S, Corvol JC. Genotype-phenotype correlation in PRKN-associated Parkinson's disease. NPJ Parkinsons Dis 2024; 10:72. [PMID: 38553467 PMCID: PMC10980707 DOI: 10.1038/s41531-024-00677-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 03/07/2024] [Indexed: 04/02/2024] Open
Abstract
Bi-allelic pathogenic variants in PRKN are the most common cause of autosomal recessive Parkinson's disease (PD). 647 patients with PRKN-PD were included in this international study. The pathogenic variants present were characterised and investigated for their effect on phenotype. Clinical features and progression of PRKN-PD was also assessed. Among 133 variants in index cases (n = 582), there were 58 (43.6%) structural variants, 34 (25.6%) missense, 20 (15%) frameshift, 10 splice site (7.5%%), 9 (6.8%) nonsense and 2 (1.5%) indels. The most frequent variant overall was an exon 3 deletion (n = 145, 12.3%), followed by the p.R275W substitution (n = 117, 10%). Exon3, RING0 protein domain and the ubiquitin-like protein domain were mutational hotspots with 31%, 35.4% and 31.7% of index cases presenting mutations in these regions respectively. The presence of a frameshift or structural variant was associated with a 3.4 ± 1.6 years or a 4.7 ± 1.6 years earlier age at onset of PRKN-PD respectively (p < 0.05). Furthermore, variants located in the N-terminus of the protein, a region enriched with frameshift variants, were associated with an earlier age at onset. The phenotype of PRKN-PD was characterised by slow motor progression, preserved cognition, an excellent motor response to levodopa therapy and later development of motor complications compared to early-onset PD. Non-motor symptoms were however common in PRKN-PD. Our findings on the relationship between the type of variant in PRKN and the phenotype of the disease may have implications for both genetic counselling and the design of precision clinical trials.
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Affiliation(s)
- Poornima Jayadev Menon
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France.
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France.
- School of Postgraduate Studies, Royal College of Surgeons in Ireland, Dublin, Ireland.
| | - Sara Sambin
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
| | - Baptiste Criniere-Boizet
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Thomas Courtin
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Genetics, Hôpital Pitié-Salpêtrière, Paris, France
| | - Christelle Tesson
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Fanny Casse
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Melanie Ferrien
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Louise-Laure Mariani
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
| | - Stephanie Carvalho
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Francois-Xavier Lejeune
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Sana Rebbah
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Gaspard Martet
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Marion Houot
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
- Centre of Excellence of Neurodegenerative Disease (CoEN), AP-HP, Pitié-Salpêtrière Hospital, Paris, France
- Institute of Memory and Alzheimer's Disease (IM2A), Department of Neurology, AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Aymeric Lanore
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
| | - Graziella Mangone
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
- Department of Neurology, Movement Disorder Division, Rush University Medical Center, 1725 W. Harrison Street, Chicago, IL, USA
| | - Emmanuel Roze
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
| | - Marie Vidailhet
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
| | - Jan Aasly
- Department of Neurology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ziv Gan Or
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Eric Yu
- The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, QC, Canada
- Department of Neurology and Neurosurgery, McGill University, Montreal, QC, Canada
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Yves Dauvilliers
- Department of Neurology, Gui-de-Chauliac Hospital, CHU Montpellier, University of Montpellier, Institute for Neurosciences of Montpellier (INM), INSERM, Montpellier, France
| | | | | | - Walter Pirker
- Department of Neurology, Ottakring Clinic, Vienna, Austria
| | - Ignacio Álvarez
- Department of Neurology, Hospital Universitari Mutua de Terrassa, and Fundació per a la Recerca Biomèdica i Social Mútua de Terrassa, Terrassa, Barcelona, Spain
| | - Pau Pastor
- Unit of Neurodegenerative diseases, Department of Neurology, University Hospital Germans Trias i Pujol and The Germans Trias i Pujol Research Institute (IGTP) Badalona, Barcelona, Spain
| | - Alessio Di Fonzo
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Kailash P Bhatia
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Francesca Magrinelli
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Henry Houlden
- Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK
| | - Raquel Real
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- UCL Movement Disorders Centre, University College London, London, UK
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815, USA
| | - Andrea Quattrone
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
- Institute of Neurology, Department of Medical and Surgical Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Patricia Limousin
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Prasad Korlipara
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Thomas Foltynie
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Donald Grosset
- Institute of Neurological Sciences, University of Glasgow, Glasgow, UK
| | - Nigel Williams
- Department of Psychological Medicine and Neurology, Cardiff University, Cardiff, UK
| | - Derek Narendra
- Inherited Disorders Unit, Neurogenetics Branch, Division of Intramural Research, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Hsin-Pin Lin
- Inherited Disorders Unit, Neurogenetics Branch, Division of Intramural Research, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Carna Jovanovic
- University Clinical Center of Serbia, Neurology Clinic, Belgrade, Serbia
| | - Marina Svetel
- University Clinical Center of Serbia, Neurology Clinic, Belgrade, Serbia
| | - Timothy Lynch
- The Dublin Neurological Institute at the Mater Misericordiae University Hospital, Dublin Ireland and University College Dublin, Dublin, Ireland
| | - Amy Gallagher
- The Dublin Neurological Institute at the Mater Misericordiae University Hospital, Dublin Ireland and University College Dublin, Dublin, Ireland
| | - Wim Vandenberghe
- Department of Neurology, University Hospitals Leuven; Department of Neurosciences, KU Leuven; Leuven Brain Institute, Leuven, Belgium
| | - Thomas Gasser
- Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- DZNE, German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Kathrin Brockmann
- Department of Neurodegenerative Diseases, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- DZNE, German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Huw R Morris
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | - Max Borsche
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Olga Corti
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Alexis Brice
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Genetics, Hôpital Pitié-Salpêtrière, Paris, France
| | - Suzanne Lesage
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
| | - Jean Christophe Corvol
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute - ICM, Inserm, CNRS, Paris, France
- Assistance Publique Hôpitaux de Paris, Department of Neurology, CIC Neurosciences, Hôpital Pitié-Salpêtrière, Paris, France
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Cha Y, Kagalwala MN, Ross J. Navigating the Frontiers of Machine Learning in Neurodegenerative Disease Therapeutics. Pharmaceuticals (Basel) 2024; 17:158. [PMID: 38399373 PMCID: PMC10891920 DOI: 10.3390/ph17020158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/16/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
Recent advances in machine learning hold tremendous potential for enhancing the way we develop new medicines. Over the years, machine learning has been adopted in nearly all facets of drug discovery, including patient stratification, lead discovery, biomarker development, and clinical trial design. In this review, we will discuss the latest developments linking machine learning and CNS drug discovery. While machine learning has aided our understanding of chronic diseases like Alzheimer's disease and Parkinson's disease, only modest effective therapies currently exist. We highlight promising new efforts led by academia and emerging biotech companies to leverage machine learning for exploring new therapies. These approaches aim to not only accelerate drug development but to improve the detection and treatment of neurodegenerative diseases.
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Affiliation(s)
| | | | - Jermaine Ross
- Alleo Labs, San Francisco, CA 94105, USA; (Y.C.); (M.N.K.)
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Rački V, Hero M, Papić E, Rožmarić G, Čizmarević NS, Chudy D, Peterlin B, Vuletić V. Applicability of clinical genetic testing for deep brain stimulation treatment in monogenic Parkinson's disease and monogenic dystonia: a multidisciplinary team perspective. Front Neurosci 2023; 17:1282267. [PMID: 38027472 PMCID: PMC10667448 DOI: 10.3389/fnins.2023.1282267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
In this perspective article, we highlight the possible applicability of genetic testing in Parkinson's disease and dystonia patients treated with deep brain stimulation (DBS). DBS, a neuromodulatory technique employing electrical stimulation, has historically targeted motor symptoms in advanced PD and dystonia, yet its precise mechanisms remain elusive. Genetic insights have emerged as potential determinants of DBS efficacy. Known PD genes such as GBA, SNCA, LRRK2, and PRKN are most studied, even though further studies are required to make firm conclusions. Variable outcomes depending on genotype is present in genetic dystonia, as DYT-TOR1A, NBIA/DYTPANK2, DYT-SCGE and X-linked dystonia-parkinsonism have demonstrated promising outcomes following GPi-DBS, while varying outcomes have been documented in DYT-THAP1. We present two clinical vignettes that illustrate the applicability of genetics in clinical practice, with one PD patient with compound GBA mutations and one GNAL dystonia patient. Integrating genetic testing into clinical practice is pivotal, particularly with advancements in next-generation sequencing. However, there is a clear need for further research, especially in rarer monogenic forms. Our perspective is that applying genetics in PD and dystonia is possible today, and despite challenges, it has the potential to refine patient selection and enhance treatment outcomes.
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Affiliation(s)
- Valentino Rački
- Department of Neurology, Clinical Hospital Center Rijeka, Rijeka, Croatia
- Department of Neurology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Mario Hero
- Department of Neurology, Clinical Hospital Center Rijeka, Rijeka, Croatia
- Department of Neurology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Eliša Papić
- Department of Neurology, Clinical Hospital Center Rijeka, Rijeka, Croatia
- Department of Neurology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Gloria Rožmarić
- Department of Neurology, Clinical Hospital Center Rijeka, Rijeka, Croatia
| | - Nada Starčević Čizmarević
- Department of Medical Genomics and Biology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Darko Chudy
- Department of Neurosurgery, Clinical Hospital Dubrava, Zagreb, Croatia
| | - Borut Peterlin
- Clinical Institute of Genomic Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Vladimira Vuletić
- Department of Neurology, Clinical Hospital Center Rijeka, Rijeka, Croatia
- Department of Neurology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
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8
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Pitton Rissardo J, Fornari Caprara AL. Cardiac 123I-Metaiodobenzylguanidine (MIBG) Scintigraphy in Parkinson's Disease: A Comprehensive Review. Brain Sci 2023; 13:1471. [PMID: 37891838 PMCID: PMC10605004 DOI: 10.3390/brainsci13101471] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 09/23/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Cardiac sympathetic denervation, as documented on 123I-metaiodobenzylguanidine (MIBG) myocardial scintigraphy, is relatively sensitive and specific for distinguishing Parkinson's disease (PD) from other neurodegenerative causes of parkinsonism. The present study aims to comprehensively review the literature regarding the use of cardiac MIBG in PD. MIBG is an analog to norepinephrine. They share the same uptake, storage, and release mechanisms. An abnormal result in the cardiac MIBG uptake in individuals with parkinsonism can be an additional criterion for diagnosing PD. However, a normal result of cardiac MIBG in individuals with suspicious parkinsonian syndrome does not exclude the diagnosis of PD. The findings of cardiac MIBG studies contributed to elucidating the pathophysiology of PD. We investigated the sensitivity and specificity of cardiac MIBG scintigraphy in PD. A total of 54 studies with 3114 individuals diagnosed with PD were included. The data were described as means with a Hoehn and Yahr stage of 2.5 and early and delayed registration H/M ratios of 1.70 and 1.51, respectively. The mean cutoff for the early and delayed phases were 1.89 and 1.86. The sensitivity for the early and delayed phases was 0.81 and 0.83, respectively. The specificity for the early and delayed phases were 0.86 and 0.80, respectively.
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Yaghoobi A, Seyedmirzaei H, Ala M. Genome- and Exome-Wide Association Studies Revealed Candidate Genes Associated with DaTscan Imaging Features. PARKINSON'S DISEASE 2023; 2023:2893662. [PMID: 37664790 PMCID: PMC10468272 DOI: 10.1155/2023/2893662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/02/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023]
Abstract
Introduction Despite remarkable progress in identifying Parkinson's disease (PD) genetic risk loci, the genetic basis of PD remains largely unknown. With the help of the endophenotype approach and using data from dopamine transporter single-photon emission computerized tomography (DaTscan), we identified potentially involved genes in PD. Method We conducted an imaging genetic study by performing exome-wide association study (EWAS) and genome-wide association study (GWAS) on the specific binding ratio (SBR) of six DaTscan anatomical areas between 489 and 559 subjects of Parkinson's progression markers initiative (PPMI) cohort and 83,623 and 36,845 single-nucleotide polymorphisms (SNPs)/insertion-deletion mutations (INDELs). We also investigated the association of cerebrospinal fluid (CSF) protein concentration of our significant genes with PD progression using PPMI CSF proteome data. Results Among 83,623 SNPs/INDELs in EWAS, one SNP (rs201465075) on 1 q32.1 locus was significantly (P value = 4.03 × 10-7) associated with left caudate DaTscan SBR, and 33 SNPs were suggestive. Among 36,845 SNPs in GWAS, one SNP (rs12450112) on 17 p.12 locus was significantly (P value = 1.34 × 10-6) associated with right anterior putamen DaTscan SBR, and 39 SNPs were suggestive among which 8 SNPs were intergenic. We found that rs201465075 and rs12450112 are most likely related to IGFN1 and MAP2K4 genes. The protein level of MAP2K4 in the CSF was significantly associated with PD progression in the PPMI cohort; however, proteomic data were not available for the IGFN1 gene. Conclusion We have shown that particular variants of IGFN1 and MAP2K4 genes may be associated with PD. Since DaTscan imaging could be positive in other Parkinsonian syndromes, caution should be taken when interpreting our results. Future experimental studies are also needed to verify these findings.
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Affiliation(s)
- Arash Yaghoobi
- Institute for Research in Fundamental Sciences (IPM), School of Biological Sciences, Tehran, Iran
| | - Homa Seyedmirzaei
- Interdisciplinary Neuroscience Research Program (INRP), Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Moein Ala
- Experimental Research Center, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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10
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Patel N. To lump or to split? Deep brain stimulation may improve non-motor symptoms in certain Parkinson's disease subtypes. Parkinsonism Relat Disord 2023; 109:105369. [PMID: 36948990 DOI: 10.1016/j.parkreldis.2023.105369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Neepa Patel
- Department of Neurological Sciences, Rush University Medical Center, 1725 West Harrison, Suite 755, Chicago, IL, 60612, USA.
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11
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Santos-García D, de Deus Fonticoba T, Cores Bartolomé C, Feal Painceiras MJ, Íñiguez-Alvarado MC, García Díaz I, Jesús S, Buongiorno MT, Planellas L, Cosgaya M, García Caldentey J, Caballol N, Legarda I, Hernández Vara J, Cabo I, López Manzanares L, González Aramburu I, Ávila Rivera MA, Gómez Mayordomo V, Nogueira V, Puente V, Dotor García-Soto J, Borrué C, Solano Vila B, Álvarez Sauco M, Vela L, Escalante S, Cubo E, Carrillo Padilla F, Martínez Castrillo JC, Sánchez Alonso P, Alonso Losada MG, López Ariztegui N, Gastón I, Kulisevsky J, Menéndez González M, Seijo M, Ruiz Martínez J, Valero C, Kurtis M, González Ardura J, Alonso Redondo R, Ordás C, López Díaz LM, McAfee D, Calopa M, Carrillo F, Escamilla Sevilla F, Freire-Alvarez E, Gómez Esteban JC, García Ramos R, Luquín MRI, Martínez-Torres I, Sesar Ignacio Á, Martinez-Martin P, Mir P. Staging Parkinson's Disease According to the MNCD (Motor/Non-motor/Cognition/Dependency) Classification Correlates with Disease Severity and Quality of Life. JOURNAL OF PARKINSON'S DISEASE 2023; 13:379-402. [PMID: 36911948 DOI: 10.3233/jpd-225073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
BACKGROUND Recently, a novel simple classification called MNCD, based on 4 axes (Motor; Non-motor; Cognition; Dependency) and 5 stages, has been proposed to classify Parkinson's disease (PD). OBJECTIVE Our aim was to apply the MNCD classification in a cohort of PD patients for the first time and also to analyze the correlation with quality of life (QoL) and disease severity. METHODS Data from the baseline visit of PD patients recruited from 35 centers in Spain from the COPPADIS cohort fromJanuary 2016 to November 2017 were used to apply the MNCD classification. Three instruments were used to assess QoL:1) the 39-item Parkinson's disease Questionnaire [PDQ-39]); PQ-10; the EUROHIS-QOL 8-item index (EUROHIS-QOL8). RESULTS Four hundred and thirty-nine PD patients (62.05±7.84 years old; 59% males) were included. MNCD stage was:stage 1, 8.4% (N = 37); stage 2, 62% (N = 272); stage 3, 28.2% (N = 124); stage 4-5, 1.4% (N = 6). A more advancedMNCD stage was associated with a higher score on the PDQ39SI (p < 0.0001) and a lower score on the PQ-10 (p< 0.0001) and EUROHIS-QOL8 (p< 0.0001). In many other aspects of the disease, such as disease duration, levodopa equivalent daily dose, motor symptoms, non-motor symptoms, and autonomy for activities of daily living, an association between the stage and severity was observed, with data indicating a progressive worsening related to disease progression throughout the proposed stages. CONCLUSION Staging PD according to the MNCD classification correlated with QoL and disease severity. The MNCD could be a proper tool to monitor the progression of PD.
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Affiliation(s)
| | | | | | | | | | - Iago García Díaz
- CHUAC, Complejo Hospitalario Universitario de A Coruña, A Coruña, Spain
| | - Silvia Jesús
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain.,CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain
| | | | | | | | | | - Nuria Caballol
- Consorci Sanitari Integral, Hospital Moisés Broggi, Sant Joan Despí, Barcelona, Spain
| | - Ines Legarda
- Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | - Jorge Hernández Vara
- CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain.,Hospital Universitario Valld' Hebron, Barcelona, Spain
| | - Iria Cabo
- Complejo Hospitalario Universitario de Pontevedra (CHOP), Pontevedra, Spain
| | | | - Isabel González Aramburu
- CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain.,Hospital Universitario Marqués de Valdecilla, Santander Spain
| | - Maria A Ávila Rivera
- Consorci Sanitari Integral, Hospital General de LΉospitalet, LΉospitalet de Llobregat, Barcelona,Spain
| | | | | | | | | | | | - Berta Solano Vila
- Institut d'Assistència Sanitària (IAS) - Institut Cataè de la Salut, Girona, Spain
| | | | - Lydia Vela
- Fundación Hospital de Alcorcón, Madrid,Spain
| | - Sonia Escalante
- Hospital de Tortosa Verge de la Cinta (HTVC), Tortosa, Tarragona, Spain
| | - Esther Cubo
- Complejo Asistencial Universitario de Burgos, Burgos, Spain
| | | | - Juan C Martínez Castrillo
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | | | - Maria G Alonso Losada
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Nuria López Ariztegui
- CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain
| | - Itziar Gastón
- Hospital Universitari Mutua de Terrassa, Terrassa, Barcelona, Spain
| | - Jaime Kulisevsky
- CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain.,Clínica del Pilar, Barcelona, Spain
| | | | - Manuel Seijo
- Complejo Hospitalario Universitario de Pontevedra (CHOP), Pontevedra, Spain
| | | | - Caridad Valero
- Consorci Sanitari Integral, Hospital Moisés Broggi, Sant Joan Despí, Barcelona, Spain
| | - Mónica Kurtis
- Hospital Universitario Son Espases, Palma de Mallorca, Spain
| | | | | | - Carlos Ordás
- Hospital Universitario La Princesa, Madrid, Spain, Pontevedra, Spain
| | - Luis M López Díaz
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain
| | - Darrian McAfee
- Hospital Universitario Marqués de Valdecilla, Santander Spain
| | - Matilde Calopa
- Consorci Sanitari Integral, Hospital General de LΉospitalet, LΉospitalet de Llobregat, Barcelona,Spain
| | - Fátima Carrillo
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain.,CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain
| | | | | | | | | | | | | | | | - Pablo Martinez-Martin
- CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain
| | - Pablo Mir
- Unidad de Trastornos del Movimiento, Servicio de Neurología y Neurofisiología Clínica, Instituto de Biomedicina de Sevilla, Hospital Universitario Virgen del Rocío/CSIC/Universidad de Sevilla, Seville, Spain.,CIBERNED (Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas), Spain
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12
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Pandey SK, Singh RK. Recent developments in nucleic acid-based therapies for Parkinson’s disease: Current status, clinical potential, and future strategies. Front Pharmacol 2022; 13:986668. [PMID: 36339626 PMCID: PMC9632735 DOI: 10.3389/fphar.2022.986668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 10/06/2022] [Indexed: 11/23/2022] Open
Abstract
Parkinson’s disease is the second most common progressive neurodegenerative disease diagnosed mainly based on clinical symptoms caused by loss of nigrostriatal dopaminergic neurons. Although currently available pharmacological therapies provide symptomatic relief, however, the disease continues to progress eventually leading to severe motor and cognitive decline and reduced quality of life. The hallmark pathology of Parkinson’s disease includes intraneuronal inclusions known as Lewy bodies and Lewy neurites, including fibrillar α-synuclein aggregates. These aggregates can progressively spread across synaptically connected brain regions leading to emergence of disease symptoms with time. The α-synuclein level is considered important in its fibrillization and aggregation. Nucleic acid therapeutics have recently been shown to be effective in treating various neurological diseases, raising the possibility of developing innovative molecular therapies for Parkinson’s disease. In this review, we have described the advancements in genetic dysregulations in Parkinson’s disease along with the disease-modifying strategies involved in genetic regulation with particular focus on downregulation of α-synuclein gene using various novel technologies, notably antisense oligonucleotides, microRNA, short interfering RNA, short hairpin RNAs, DNA aptamers, and gene therapy of vector-assisted delivery system-based therapeutics. In addition, the current status of preclinical and clinical development for nucleic acid-based therapies for Parkinson’s disease have also been discussed along with their limitations and opportunities.
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13
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Aborageh M, Krawitz P, Fröhlich H. Genetics in parkinson's disease: From better disease understanding to machine learning based precision medicine. FRONTIERS IN MOLECULAR MEDICINE 2022; 2:933383. [PMID: 39086979 PMCID: PMC11285583 DOI: 10.3389/fmmed.2022.933383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 08/30/2022] [Indexed: 08/02/2024]
Abstract
Parkinson's Disease (PD) is a neurodegenerative disorder with highly heterogeneous phenotypes. Accordingly, it has been challenging to robustly identify genetic factors associated with disease risk, prognosis and therapy response via genome-wide association studies (GWAS). In this review we first provide an overview of existing statistical methods to detect associations between genetic variants and the disease phenotypes in existing PD GWAS. Secondly, we discuss the potential of machine learning approaches to better quantify disease phenotypes and to move beyond disease understanding towards a better-personalized treatment of the disease.
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Affiliation(s)
- Mohamed Aborageh
- Bonn-Aachen International Center for Information Technology (B-IT), Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
| | - Peter Krawitz
- Institute for Genomic Statistics and Bioinformatics, University Hospital Bonn, Bonn, Germany
| | - Holger Fröhlich
- Bonn-Aachen International Center for Information Technology (B-IT), Rheinische Friedrich-Wilhelms-Universität Bonn, Bonn, Germany
- Department of Bioinformatics, Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), Sankt Augustin, Germany
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14
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Genetic stratification of motor and QoL outcomes in Parkinson's disease in the EARLYSTIM study. Parkinsonism Relat Disord 2022; 103:169-174. [PMID: 36117018 DOI: 10.1016/j.parkreldis.2022.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 08/16/2022] [Accepted: 08/20/2022] [Indexed: 11/22/2022]
Abstract
PURPOSE The decision for subthalamic deep brain stimulation (STN-DBS) in Parkinson's disease (PD) relies on clinical predictors. Whether genetic variables could predict favourable or unfavourable decisions is under investigation. OBJECTIVE First, we aimed to reproduce the previous observation that SNCA rs356220 was associated with favourable STN-DBS motor response. In additional exploratory analyses, we studied if other PD risk and progression variants from the latest GWAS are associated with therapeutic outcome. Further, we evaluated the predictive value of polygenic risk scores. METHODS We comprehensively genotyped patients from the EarlyStim cohort using NeuroChip, and assessed the clinico-genetic associations with longitudinal outcome parameters. RESULTS The SNCA rs356220 variant did not predict UPDRS III outcomes. However, it was associated with quality of life improvement in secondary analyses. Several polymorphisms from previously identified GWAS hits predicted motor or quality of life outcomes in DBS patients. Polygenic risk scores did not predict any outcome parameter. CONCLUSIONS Our findings support the hypothesis that different common genetic markers are associated with favourable quality of life outcomes of STN-DBS in PD. These findings can be the basis for further validation in larger and independent cohorts.
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15
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Farrer MJ. Obituary for Jan O. Aasly (1950-2022). Mov Disord 2022; 37:1783-1784. [PMID: 36004440 DOI: 10.1002/mds.29198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 08/02/2022] [Indexed: 11/08/2022] Open
Affiliation(s)
- Matthew J Farrer
- Department of Neurology, University of Florida, Gainesville, Florida, USA
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16
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Nguyen TT, Kim YJ, Lai TT, Nguyen PT, Koh YH, Nguyen LTN, Ma HI, Kim YE. PTEN-Induced Putative Kinase 1 Dysfunction Accelerates Synucleinopathy. JOURNAL OF PARKINSON'S DISEASE 2022; 12:1201-1217. [PMID: 35253778 PMCID: PMC9198758 DOI: 10.3233/jpd-213065] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background: Mutations in PTEN-induced putative kinase 1 (PINK1) cause autosomal recessive Parkinson’s disease (PD) and contribute to the risk of sporadic PD. However, the relationship between PD-related PINK1 mutations and alpha-synuclein (α-syn) aggregation—a main pathological component of PD—remains unexplored. Objective: To investigate whether α-syn pathology is exacerbated in the absence of PINK1 after α-syn preformed fibril (PFF) injection in a PD mouse model and its effects on neurodegeneration. Methods: In this study, 10-week-old Pink1 knockout (KO) and wildtype (WT) mice received stereotaxic unilateral striatal injection of recombinant mouse α-syn PFF. Then, α-syn pathology progression, inflammatory responses, and neurodegeneration were analyzed via immunohistochemistry, western blot analysis, and behavioral testing. Results: After PFF injection, the total α-syn levels significantly increased, and pathological α-syn was markedly aggregated in Pink1 KO mice compared with Pink1 WT mice. Then, earlier and more severe neuronal loss and motor deficits occurred. Moreover, compared with WT mice, Pink1 KO mice had evident microglial/astrocytic immunoreactivity and prolonged astrocytic activation, and a higher rate of protein phosphatase 2A phosphorylation, which might explain the greater α-syn aggravation and neuronal death. Conclusion: The loss of Pink1 function accelerated α-syn aggregation, accumulation and glial activation, thereby leading to early and significant neurodegeneration and behavioral impairment in the PD mouse model. Therefore, our findings support the notion that PINK1 dysfunction increases the risk of synucleinopathy.
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Affiliation(s)
- Tinh Thi Nguyen
- Department of Biomedical Gerontology, Graduate School of Hallym University, Chuncheon, South Korea.,Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, South Korea.,Hallym Neurological Institute, Hallym University, South Korea
| | - Yun Joong Kim
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, South Korea
| | - Thuy Thi Lai
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, South Korea.,Hallym Neurological Institute, Hallym University, South Korea
| | - Phuong Thi Nguyen
- Department of Biomedical Gerontology, Graduate School of Hallym University, Chuncheon, South Korea.,Ilsong Institute of Life Science, Hallym University, Seoul, South Korea
| | - Young Ho Koh
- Department of Biomedical Gerontology, Graduate School of Hallym University, Chuncheon, South Korea.,Ilsong Institute of Life Science, Hallym University, Seoul, South Korea
| | - Linh Thi Nhat Nguyen
- Department of Medical Sciences, Graduate School of Hallym University, Chuncheon, South Korea
| | - Hyeo-Il Ma
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, South Korea.,Hallym Neurological Institute, Hallym University, South Korea
| | - Young Eun Kim
- Department of Neurology, Hallym University Sacred Heart Hospital, Hallym University, Anyang, South Korea.,Hallym Neurological Institute, Hallym University, South Korea
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17
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Li C, Hou Y, Ou R, Gu X, Chen Y, Zhang L, Liu K, Lin J, Cao B, Wei Q, Chen X, Song W, Zhao B, Wu Y, Cui Y, Shang H. Genetic Determinants of Survival in Parkinson's Disease in the Asian Population. Mov Disord 2022; 37:1624-1633. [PMID: 35616254 DOI: 10.1002/mds.29069] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/15/2022] [Accepted: 05/02/2022] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Patients with Parkinson's disease (PD) have reduced life expectancy compared to the general population. Genetic variation was shown to play a role in the heterogeneity of survival for patients with PD, although the underlying genetic background remains poorly studied. OBJECTIVE The aim was to explore the genetic determinants influencing the survival of PD. METHODS We performed a genome-wide association analysis using a Cox proportional hazards model in a longitudinal cohort of 1080 Chinese patients with PD. Furthermore, we built a clinical-genetic model to predict the survival of patients using clinical variables combined with polygenic risk score (PRS) of survival of PD. RESULTS The cohort was followed up for an average of 7.13 years, with 85 incidents of death. One locus rs12628329 (RPL3) was significantly associated with reduced survival time by ~10.8 months (P = 2.72E-08, β = 1.79, standard error = 0.32). Functional exploration suggested this variant could upregulate the expression of RPL3 and induce apoptosis and cell death. In addition, adding PRS of survival in the prediction model substantially improved survival predictability (concordance index [Cindex]: 0.936) compared with the clinical model (Cindex: 0.860). CONCLUSIONS These findings improve the current understanding of the genetic cause of survival of PD and provide a novel target RPL3 for further research on PD pathogenesis and potential therapeutic options. Our results also demonstrate the potential utility of PRS of survival in identifying patients with shorter survival and providing personalized clinical monitoring and treatment. © 2022 International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Chunyu Li
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Yanbing Hou
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Ruwei Ou
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaojing Gu
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Yongping Chen
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Lingyu Zhang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Kuncheng Liu
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Junyu Lin
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Bei Cao
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Qianqian Wei
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Xueping Chen
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Song
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Bi Zhao
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Wu
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Yiyuan Cui
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
| | - Huifang Shang
- Department of Neurology, Laboratory of Neurodegenerative Disorders, National Clinical Research Center for Geriatric, West China Hospital, Sichuan University, Chengdu, China
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18
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Genetics of cognitive dysfunction in Parkinson's disease. PROGRESS IN BRAIN RESEARCH 2022; 269:195-226. [PMID: 35248195 DOI: 10.1016/bs.pbr.2022.01.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Presentation and progression of cognitive symptoms in Parkinson's disease are highly variable. PD is a genetically complex disorder with multiple genetic risk factors and understanding the role that genes play in cognitive outcomes is important for patient counseling and treatment. Currently, there are seven well-described genes that increase the risk for PD, with variable levels of penetrance: SNCA, LRRK2, VPS35, PRKN, PINK1, DJ1 and GBA. In addition, large, genome-wide association studies have identified multiple loci in our DNA which increase PD risk. In this chapter, we summarize what is currently known about each of the seven strongly-associated PD genes and select PD risk variants, including PITX3, TMEM106B, SNCA Rep1, APOɛ4, COMT and MAPT H1/H1, along with their respective relationships to cognition.
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19
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Varela L, Garcia-Rendueles MER. Oncogenic Pathways in Neurodegenerative Diseases. Int J Mol Sci 2022; 23:ijms23063223. [PMID: 35328644 PMCID: PMC8952192 DOI: 10.3390/ijms23063223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/14/2022] [Accepted: 03/15/2022] [Indexed: 02/05/2023] Open
Abstract
Cancer and neurodegenerative diseases are two of the leading causes of premature death in modern societies. Their incidence continues to increase, and in the near future, it is believed that cancer will kill more than 20 million people per year, and neurodegenerative diseases, due to the aging of the world population, will double their prevalence. The onset and the progression of both diseases are defined by dysregulation of the same molecular signaling pathways. However, whereas in cancer, these alterations lead to cell survival and proliferation, neurodegenerative diseases trigger cell death and apoptosis. The study of the mechanisms underlying these opposite final responses to the same molecular trigger is key to providing a better understanding of the diseases and finding more accurate treatments. Here, we review the ten most common signaling pathways altered in cancer and analyze them in the context of different neurodegenerative diseases such as Alzheimer's (AD), Parkinson's (PD), and Huntington's (HD) diseases.
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Affiliation(s)
- Luis Varela
- Yale Center for Molecular and Systems Metabolism, Department of Comparative Medicine, School of Medicine, Yale University, 310 Cedar St. BML 330, New Haven, CT 06520, USA
- Correspondence: (L.V.); (M.E.R.G.-R.)
| | - Maria E. R. Garcia-Rendueles
- Precision Nutrition and Cancer Program, IMDEA Food Institute, Campus Excelencia Internacional UAM+CSIC, 28049 Madrid, Spain
- Correspondence: (L.V.); (M.E.R.G.-R.)
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20
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Hustad E, Myklebust TÅ, Gulati S, Aasly JO. Increased Mortality in Young-Onset Parkinson's Disease. J Mov Disord 2021; 14:214-220. [PMID: 34315208 PMCID: PMC8490197 DOI: 10.14802/jmd.21029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 04/28/2021] [Indexed: 11/27/2022] Open
Abstract
Objective
Few studies have followed Parkinson’s disease (PD) patients from the time of diagnosis to the date of death. This study compared mortality in the Trondheim PD cohort to the general population, investigated causes of death and analyzed the associations between mortality and age at disease onset (AAO) and cognitive decline defined as Montreal Cognitive Assessment (MoCA) score below 26. Methods
The cohort was followed longitudinally from 1997. By the end of January 2020, 587 patients had died. Comparisons to the Norwegian population were performed by calculating standardized mortality ratios (SMRs). Survival curves were estimated using the standard Kaplan-Meier estimator, and multivariable Cox proportional hazard models were estimated to investigate associations. Results
SMR was 2.28 [95% confidence interval (CI): 2.13–2.44] for the whole cohort. For participants with AAO 20–39 years, the SMR was 5.55 (95% CI: 3.38–8.61). Median survival was 15 years (95% CI: 14.2–15.5) for the whole cohort. Early-onset PD (EOPD) patients (AAO < 50 years) had the longest median survival time. For all groups, there was a significant shortening in median survival time and an almost 3-fold higher age- and sex-adjusted hazard ratio for death when the MoCA score decreased below 26. Conclusion
PD patients with an AAO before 40 years had a more than fivefold higher mortality rate compared to a similar general population. EOPD patients had the longest median survival; however, their life expectancy was reduced to a greater degree than that of late-onset PD patients. Cognitive impairment was strongly associated with mortality in PD.
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Affiliation(s)
- Eldbjørg Hustad
- Department of Neuromedicine and Movement Science (INB), NTNU, Faculty of Medicine and Health Sciences, Trondheim, Norway
| | - Tor Åge Myklebust
- Department of Research and Innovation, More and Romsdal Hospital Trust, Ålesund, Norway
| | - Sasha Gulati
- Department of Neuromedicine and Movement Science (INB), NTNU, Faculty of Medicine and Health Sciences, Trondheim, Norway.,Department of Neurosurgery, St. Olavs Hospital, Trondheim, Norway
| | - Jan O Aasly
- Department of Neuromedicine and Movement Science (INB), NTNU, Faculty of Medicine and Health Sciences, Trondheim, Norway.,Department of Neurology, St. Olavs Hospital, Trondheim, Norway
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21
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Aasly JO. Inflammatory Diseases Among Norwegian LRRK2 Mutation Carriers. A 15-Years Follow-Up of a Cohort. Front Neurosci 2021; 15:634666. [PMID: 33584195 PMCID: PMC7876287 DOI: 10.3389/fnins.2021.634666] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 01/06/2021] [Indexed: 12/29/2022] Open
Abstract
The first families with LRRK2 related Parkinson’s disease (PD) were presented around 15 years ago and numerous papers have described the characteristics of the LRRK2 phenotype. The prevalence of autosomal dominant PD varies around the world mainly depending on local founder effects. The highest prevalence of LRRK2 G2019S PD in Norway is located to the central part of the country and most families could be traced back to common ancestors. The typical Norwegian LRRK2 phenotype is not different from classical PD and similar to that seen in most other LRRK2 families. The discovery of LRRK2 PD has allowed us to follow-up multi-incident families and to study their phenotype longitudinally. In the Norwegian LRRK2 families there has been a significantly higher incidence of inflammatory diseases like multiple sclerosis and rheumatoid arthritis that seen in other PD populations. Recent studies in LRRK2 mechanisms have indicated that this protein may be crucial in initiating disease processes. In this short survey of 100 Norwegian mutation carriers followed through more than 15 years are presented. The prevalence of inflammatory diseases among these cases is highlighted. The role of LRRK2 in the conversion process from carrier status to PD phenotype is still unknown and disease generating mechanisms important for initiating LRRK2 PD are still to be identified.
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Affiliation(s)
- Jan O Aasly
- Department of Neurology, St. Olavs Hospital, Trondheim, Norway.,Department of Neuromedicine and Movement Science (INB), Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
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22
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Binck S, Pauly C, Vaillant M, Hipp G, Gantenbein M, Krueger R, Diederich NJ. Contributing Factors and Evolution of Impulse Control Disorder in the Luxembourg Parkinson Cohort. Front Neurol 2020; 11:578924. [PMID: 33281714 PMCID: PMC7688665 DOI: 10.3389/fneur.2020.578924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/09/2020] [Indexed: 11/13/2022] Open
Abstract
Background: To establish the frequency of impulse control disorder (ICD) in Parkinson's disease (PD).Methods: Within the Luxembourg Parkinson's Study, PD patients were evaluated for ICD presence (score ≥ 1 on MDS-UPDRS I item 1.6), use of dopamine agonists (DA) and other medications.Results: 470 patients were enrolled. Among 217 patients without DA use, 6.9% scored positive for ICD, vs. 15.4% among 253 patients with DA use (p = 0.005). The regression analysis showed that age at PD diagnosis had only a minor impact on ICD occurrence, while there was no influence by gender or co-medications. The longitudinal study over 2 years in 156 patients demonstrated increasing ICD frequency in DA users (p = 0.005).Conclusion: This large and non-interventional study confirms that PD patients with DA treatment show higher frequency of ICD than patients without DA use. It newly demonstrates that ICD can develop independently from age, gender, or co-medications.
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Affiliation(s)
- Sylvia Binck
- Luxembourg Centre for System Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg
- *Correspondence: Sylvia Binck
| | - Claire Pauly
- Luxembourg Centre for System Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg
| | | | - Geraldine Hipp
- Luxembourg Centre for System Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
| | | | - Rejko Krueger
- Luxembourg Centre for System Biomedicine, University of Luxembourg, Luxembourg, Luxembourg
- Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg
- Luxembourg Institute of Health, Luxembourg, Luxembourg
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