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Lo T, Kushima I, Kimura H, Aleksic B, Okada T, Kato H, Inada T, Nawa Y, Torii Y, Yamamoto M, Kimura R, Funabiki Y, Kosaka H, Numata S, Kasai K, Sasaki T, Yokoyama S, Munesue T, Hashimoto R, Yasuda Y, Fujimoto M, Usami M, Itokawa M, Arai M, Ohi K, Someya T, Watanabe Y, Egawa J, Takahashi T, Suzuki M, Yamasue H, Iwata N, Ikeda M, Ozaki N. Association between copy number variations in parkin (PRKN) and schizophrenia and autism spectrum disorder: A case-control study. Neuropsychopharmacol Rep 2024; 44:42-50. [PMID: 37915257 PMCID: PMC10932780 DOI: 10.1002/npr2.12370] [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: 05/19/2023] [Accepted: 07/19/2023] [Indexed: 11/03/2023] Open
Abstract
AIM The present study aimed to examine the association between copy number variations (CNVs) in parkin (PRKN) and schizophrenia (SCZ) and autism spectrum disorder (ASD) in a large case-control sample. METHOD Array comparative genomic hybridization was performed on 3111 cases with SCZ, 1236 cases with ASD, and 2713 controls. We systematically prioritized likely pathogenic CNVs (LP-CNVs) in PRKN and examined their association with SCZ and ASD. RESULTS In total, 3014 SCZ cases (96.9%), 1205 ASD cases (97.5%), and 2671 controls (98.5%) passed quality control. We found that monoallelic carriers of LP-CNVs in PRKN were common (70/6890, 1.02%) and were not at higher risk of SCZ (p = 0.29) or ASD (p = 0.72). We observed that the distribution pattern of LP-CNVs in the Japanese population was consistent with those in other populations. We also identified a patient diagnosed with SCZ and early-onset Parkinson's disease carrying biallelic pathogenic CNVs in PRKN. The absence of Parkinson's symptoms in 10 other monoallelic carriers of the same pathogenic CNV further reflects the lack of effect of monoallelic pathogenic variants in PRKN in the absence of a second hit. CONCLUSION The present findings suggest that monoallelic CNVs in PRKN do not confer a significant risk for SCZ or ASD. However, further studies to investigate the association between biallelic CNVs in PRKN and SCZ and ASD are warranted.
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Grants
- JP15K19720 Japan Society for the Promotion of Science
- JP17H05090 Japan Society for the Promotion of Science
- JP18H04040 Japan Society for the Promotion of Science
- JP18K19511 Japan Society for the Promotion of Science
- JP19K17087 Japan Society for the Promotion of Science
- JP20H03608 Japan Society for the Promotion of Science
- JP20K07942 Japan Society for the Promotion of Science
- JP20K20602 Japan Society for the Promotion of Science
- JP21H00194 Japan Society for the Promotion of Science
- JP21H04815 Japan Society for the Promotion of Science
- JP21H05326 Japan Society for the Promotion of Science
- JP21K07543 Japan Society for the Promotion of Science
- JP22H00986 Japan Society for the Promotion of Science
- JP16dm0107134 Ministry of Education, Culture, Sports, Science and Technology
- JP19ak0101113 Ministry of Education, Culture, Sports, Science and Technology
- JP19dm0207075 Ministry of Education, Culture, Sports, Science and Technology
- JP19ek0109411 Ministry of Education, Culture, Sports, Science and Technology
- JP19km0405216 Ministry of Education, Culture, Sports, Science and Technology
- JP20ek0109488 Ministry of Education, Culture, Sports, Science and Technology
- JP21dk0307103 Ministry of Education, Culture, Sports, Science and Technology
- JP21tm0424220 Ministry of Education, Culture, Sports, Science and Technology
- JP21wm0425007 Ministry of Education, Culture, Sports, Science and Technology
- JP21wm0425008 Ministry of Education, Culture, Sports, Science and Technology
- JP21wm0425012 Ministry of Education, Culture, Sports, Science and Technology
- JP21wm0425019 Ministry of Education, Culture, Sports, Science and Technology
- JP21wm0525024 Ministry of Education, Culture, Sports, Science and Technology
- JP22tm0424222 Ministry of Education, Culture, Sports, Science and Technology
- Otsuka Toshimi Scholarship Foundation
- SENSHIN Medical Research Foundation
- Uehara Memorial Foundation
- Japan Society for the Promotion of Science
- Ministry of Education, Culture, Sports, Science and Technology
- Otsuka Toshimi Scholarship Foundation
- SENSHIN Medical Research Foundation
- Uehara Memorial Foundation
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Affiliation(s)
- Tzuyao Lo
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Itaru Kushima
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
- Medical Genomics CenterNagoya University HospitalNagoyaJapan
| | - Hiroki Kimura
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Branko Aleksic
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Takashi Okada
- Department of Developmental Disorders, National Institute of Mental HealthNational Center of Neurology and PsychiatryNagoyaJapan
| | - Hidekazu Kato
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Toshiya Inada
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Yoshihiro Nawa
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Youta Torii
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Maeri Yamamoto
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
| | - Ryo Kimura
- Department of Anatomy and Developmental BiologyGraduate School of MedicineKyoto UniversityKyotoJapan
| | - Yasuko Funabiki
- Department of Cognitive, Behavioral and Health Sciences, Graduate School of Human and Environmental StudiesKyoto UniversityKyotoJapan
| | - Hirotaka Kosaka
- Department of Neuropsychiatry, Faculty of Medical SciencesUniversity of FukuiFukuiJapan
| | - Shusuke Numata
- Department of Psychiatry, Graduate School of Biomedical ScienceTokushima UniversityTokushimaJapan
| | - Kiyoto Kasai
- Department of Neuropsychiatry, Graduate School of MedicineUniversity of TokyoTokyoJapan
- International Research Center for Neurointelligence at University of Tokyo Institutes for Advanced StudyTokyoJapan
| | - Tsukasa Sasaki
- Laboratory of Health Education, Graduate School of EducationUniversity of TokyoTokyoJapan
| | - Shigeru Yokoyama
- Research Center for Child Mental DevelopmentKanazawa UniversityIshikawaJapan
| | - Toshio Munesue
- Research Center for Child Mental DevelopmentKanazawa UniversityIshikawaJapan
| | - Ryota Hashimoto
- Department of Pathology of Mental DiseasesNational Institute of Mental HealthNational Center of Neurology and PsychiatryTokyoJapan
| | - Yuka Yasuda
- Department of Pathology of Mental DiseasesNational Institute of Mental HealthNational Center of Neurology and PsychiatryTokyoJapan
| | - Michiko Fujimoto
- Department of PsychiatryOsaka University Graduate School of MedicineOsakaJapan
| | - Masahide Usami
- Department of Child and Adolescent PsychiatryKohnodai Hospital, National Center for Global Health and MedicineChibaJapan
| | - Masanari Itokawa
- Schizophrenia Research Project, Department of Psychiatry and Behavioral SciencesTokyo Metropolitan Institute of Medical ScienceTokyoJapan
- Department of PsychiatryTokyo Metropolitan Matsuzawa HospitalTokyoJapan
| | - Makoto Arai
- Schizophrenia Research Project, Department of Psychiatry and Behavioral SciencesTokyo Metropolitan Institute of Medical ScienceTokyoJapan
| | - Kazutaka Ohi
- Department of PsychiatryGifu University Graduate School of MedicineGifuJapan
- Department of General Internal MedicineKanazawa Medical UniversityIshikawaJapan
| | - Toshiyuki Someya
- Department of PsychiatryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Yuichiro Watanabe
- Department of PsychiatryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Jun Egawa
- Department of PsychiatryNiigata University Graduate School of Medical and Dental SciencesNiigataJapan
| | - Tsutomu Takahashi
- Department of NeuropsychiatryUniversity of Toyama Graduate School of Medicine and Pharmaceutical SciencesToyamaJapan
- Research Center for Idling Brain ScienceUniversity of ToyamaToyamaJapan
| | - Michio Suzuki
- Department of NeuropsychiatryUniversity of Toyama Graduate School of Medicine and Pharmaceutical SciencesToyamaJapan
- Research Center for Idling Brain ScienceUniversity of ToyamaToyamaJapan
| | - Hidenori Yamasue
- Department of PsychiatryHamamatsu University School of MedicineHamamatsuJapan
| | - Nakao Iwata
- Department of PsychiatryFujita Health University School of MedicineToyoakeJapan
| | - Masashi Ikeda
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
- Department of PsychiatryFujita Health University School of MedicineToyoakeJapan
| | - Norio Ozaki
- Department of PsychiatryNagoya University Graduate School of MedicineNagoyaJapan
- Institute for Glyco‐core ResearchNagoya UniversityNagoyaJapan
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Mai AS, Yau CE, Tseng FS, Foo QXJ, Wang DQ, Tan EK. Linking autism spectrum disorders and parkinsonism: clinical and genetic association. Ann Clin Transl Neurol 2023; 10:484-496. [PMID: 36738194 PMCID: PMC10109258 DOI: 10.1002/acn3.51736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/03/2023] [Accepted: 01/09/2023] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Autism spectrum disorders (ASD) comprise many complex and clinically distinct neurodevelopmental conditions, with increasing evidence linking them to parkinsonism. METHODS We searched Medline and Embase from inception to 21 March 2022 and reviewed the bibliographies of relevant articles. Studies were screened and reviewed comprehensively by two independent authors. RESULTS Of 863 references from our search, we included eight clinical studies, nine genetic studies, and five case reports. Regardless of age group, Parkinson's disease (PD) and parkinsonian syndromes were more frequently observed in patients with ASD, though the evidence for increased rates of parkinsonism is less clear for children and adolescents. Parkinsonian features and hypokinetic behavior were common in Rett syndrome, with prevalence estimates ranging from 40% to 80%. Frequently observed parkinsonian features include bradykinesia, rigidity, hypomimia, and gait freezing. PD gene PARK2 copy number variations appear more frequently in ASD cases than controls. Evidence suggests that RIT2 and CD157/BST1 are implicated in ASD and PD, while the evidence for other PD-related genes (DRD2, GPCR37, the SLC gene family, and SMPD1) is less clear. Rare mutations, such as ATP13A2, CLN3, and WDR45, could result in autistic behavior and concomitant parkinsonism. CONCLUSION The prevalence of parkinsonism in ASD is substantially greater than in the general population or matched controls. Various PD-associated gene loci, especially PARK2, could confer susceptibility to ASD as well. Important future directions include conducting prospective cohort studies to understand how parkinsonian symptoms may progress, genetic studies to reveal relevant gene loci, and pathophysiologic studies to identify potential therapeutic targets.
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Affiliation(s)
- Aaron Shengting Mai
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Chun En Yau
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Fan Shuen Tseng
- Department of Neurology, Singapore General Hospital Campus, National Neuroscience Institute, Singapore, Singapore
| | - Qi Xuan Joel Foo
- Department of Neurology, Singapore General Hospital Campus, National Neuroscience Institute, Singapore, Singapore
| | - Dennis Qing Wang
- Department of Neurology, Zhujiang Hospital of Southern Medical University, Southern Medical University, Guangzhou, China
| | - Eng-King Tan
- Department of Neurology, Singapore General Hospital Campus, National Neuroscience Institute, Singapore, Singapore.,Neuroscience and Behavioural Disorders, Duke-NUS Medical School, Singapore, Singapore
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3
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Barone R, Cirnigliaro L, Saccuzzo L, Valdese S, Pettinato F, Prato A, Bernardini L, Fichera M, Rizzo R. PARK2 microdeletion in a multiplex family with autism spectrum disorder. Int J Dev Neurosci 2023; 83:121-131. [PMID: 36478299 DOI: 10.1002/jdn.10246] [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: 07/15/2022] [Revised: 11/13/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND PARK2 (PRKN; MIM*602544) encodes Parkin protein, an ubiquitin-protein ligase required for proteasomal degradation and operating in the synaptic compartments. Copy number variations (CNVs) involving PARK2 have been associated with autism spectrum disorder (ASD). We report on a family with ASD (multiplex family) harbouring a microdeletion at chr. 6q26 causing PARK2 disruption. METHODS CNV analyses were performed using CGH/SNP-array platforms, and the detected microdeletion was confirmed by real-time quantitative PCR. Standardized psychometric evaluation was used for neurobehavioral characterization. RESULTS We found an intragenic ~157 kb microdeletion of the chromosomal region 6q26 causing PARK2 disruption in two male sibs with ASD and syndromic phenotype. They both had dysmorphic facial features with coarse faces, deeply set eyes with long horizontal palpebral fissures, long eyelashes and thick eyebrows, fleshy lips and mild skeletal problems. We found an intrafamilial clinical heterogeneity owing to different severity of the autism symptoms between the affected sibs: the younger one had minimally verbal autism and severe intellectual disability, whereas his older brother presented high-functioning autism and preserved speech. Parental analysis and real-time PCR using a PRKN fragment mapping within the deletion demonstrated that the deletion was inherited from their father having subthreshold features of ASD consisting with broad autism phenotype. CONCLUSIONS The study corroborates the hypothesis that PARK2 aberrations may be associated with ASD and highlights correlations between CNV affecting PARK2 and ASD in a multiplex family. We show remarkable intrafamilial variability in the severity of inherited ASD associated with PARK2 microdeletion.
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Affiliation(s)
- Rita Barone
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.,Reseach Unit of Rare Diseases and Neurodevelopmental Disorders, Oasi Research Institute-IRCCS, Troina, Italy
| | - Lara Cirnigliaro
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Lucia Saccuzzo
- Medical Genetics, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Silvia Valdese
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Fabio Pettinato
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - Adriana Prato
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy.,Department of Cognitive Sciences, Psychology, Education and Cultural Studies, University of Messina, Messina, Italy
| | - Laura Bernardini
- Cytogenetics Unit, IRCCS Casa Sollievo della Sofferenza Foundation, San Giovanni Rotondo, FG, Italy
| | - Marco Fichera
- Reseach Unit of Rare Diseases and Neurodevelopmental Disorders, Oasi Research Institute-IRCCS, Troina, Italy.,Medical Genetics, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Renata Rizzo
- Child Neurology and Psychiatry Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
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4
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Kim J, Daadi EW, Oh T, Daadi ES, Daadi MM. Human Induced Pluripotent Stem Cell Phenotyping and Preclinical Modeling of Familial Parkinson's Disease. Genes (Basel) 2022; 13:1937. [PMID: 36360174 PMCID: PMC9689743 DOI: 10.3390/genes13111937] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 10/13/2022] [Accepted: 10/18/2022] [Indexed: 12/05/2022] Open
Abstract
Parkinson's disease (PD) is primarily idiopathic and a highly heterogenous neurodegenerative disease with patients experiencing a wide array of motor and non-motor symptoms. A major challenge for understanding susceptibility to PD is to determine the genetic and environmental factors that influence the mechanisms underlying the variations in disease-associated traits. The pathological hallmark of PD is the degeneration of dopaminergic neurons in the substantia nigra pars compacta region of the brain and post-mortem Lewy pathology, which leads to the loss of projecting axons innervating the striatum and to impaired motor and cognitive functions. While the cause of PD is still largely unknown, genome-wide association studies provide evidence that numerous polymorphic variants in various genes contribute to sporadic PD, and 10 to 15% of all cases are linked to some form of hereditary mutations, either autosomal dominant or recessive. Among the most common mutations observed in PD patients are in the genes LRRK2, SNCA, GBA1, PINK1, PRKN, and PARK7/DJ-1. In this review, we cover these PD-related mutations, the use of induced pluripotent stem cells as a disease in a dish model, and genetic animal models to better understand the diversity in the pathogenesis and long-term outcomes seen in PD patients.
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Affiliation(s)
- Jeffrey Kim
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
- Cell Systems and Anatomy, San Antonio, TX 78229, USA
| | - Etienne W. Daadi
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
| | - Thomas Oh
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
| | - Elyas S. Daadi
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
| | - Marcel M. Daadi
- Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA
- Cell Systems and Anatomy, San Antonio, TX 78229, USA
- Department of Radiology, Long School of Medicine, University of Texas Health at San Antonio, San Antonio, TX 78229, USA
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5
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Bacchelli E, Cameli C, Viggiano M, Igliozzi R, Mancini A, Tancredi R, Battaglia A, Maestrini E. An integrated analysis of rare CNV and exome variation in Autism Spectrum Disorder using the Infinium PsychArray. Sci Rep 2020; 10:3198. [PMID: 32081867 PMCID: PMC7035424 DOI: 10.1038/s41598-020-59922-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/19/2020] [Indexed: 01/11/2023] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental condition with a complex and heterogeneous genetic etiology. While a proportion of ASD risk is attributable to common variants, rare copy-number variants (CNVs) and protein-disrupting single-nucleotide variants (SNVs) have been shown to significantly contribute to ASD etiology. We analyzed a homogeneous cohort of 127 ASD Italian families genotyped with the Illumina PsychArray, to perform an integrated analysis of CNVs and SNVs and to assess their contribution to ASD risk. We observed a higher burden of rare CNVs, especially deletions, in ASD individuals versus unaffected controls. Furthermore, we identified a significant enrichment of rare CNVs intersecting ASD candidate genes reported in the SFARI database. Family-based analysis of rare SNVs genotyped by the PsychArray also indicated an increased transmission of rare SNV variants from heterozygous parents to probands, supporting a multigenic model of ASD risk with significant contributions of both variant types. Moreover, our study reinforced the evidence for a significant role of VPS13B, WWOX, CNTNAP2, RBFOX1, MACROD2, APBA2, PARK2, GPHN, and RNF113A genes in ASD susceptibility. Finally, we showed that the PsychArray, besides providing useful genotyping data in psychiatric disorders, is a valuable and cost-efficient tool for genic CNV detection, down to 10 kb.
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Affiliation(s)
- Elena Bacchelli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
| | - Cinzia Cameli
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Marta Viggiano
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy
| | - Roberta Igliozzi
- IRCCS Stella Maris Foundation, Viale del Tirreno 331, 56128, Calambrone, Pisa, Italy
| | - Alice Mancini
- IRCCS Stella Maris Foundation, Viale del Tirreno 331, 56128, Calambrone, Pisa, Italy
| | - Raffaella Tancredi
- IRCCS Stella Maris Foundation, Viale del Tirreno 331, 56128, Calambrone, Pisa, Italy
| | - Agatino Battaglia
- IRCCS Stella Maris Foundation, Viale del Tirreno 331, 56128, Calambrone, Pisa, Italy
| | - Elena Maestrini
- Department of Pharmacy and Biotechnology, University of Bologna, Bologna, Italy.
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6
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Pillai NR, Yubero D, Shayota BJ, Oyarzábal A, Ghosh R, Sun Q, Azamian MS, Arjona C, Brandi N, Palau F, Lalani SR, Artuch R, García‐Cazorla A, Scott DA. Loss of CLTRN function produces a neuropsychiatric disorder and a biochemical phenotype that mimics Hartnup disease. Am J Med Genet A 2019; 179:2459-2468. [DOI: 10.1002/ajmg.a.61357] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/22/2019] [Accepted: 08/25/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Nishitha R. Pillai
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Texas Children's Hospital Houston Texas
| | - Delia Yubero
- Department of Genetics and Molecular Medicine‐IPER, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
| | - Brian J. Shayota
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Texas Children's Hospital Houston Texas
| | - Alfonso Oyarzábal
- Laboratory of Synaptic Metabolism, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
| | - Rajarshi Ghosh
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Baylor Genetics Laboratory Houston Texas
| | - Qin Sun
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Baylor Genetics Laboratory Houston Texas
| | - Mahshid S. Azamian
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Texas Children's Hospital Houston Texas
| | - Cesar Arjona
- Department of Genetics and Molecular Medicine‐IPER, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
| | - Núria Brandi
- Department of Genetics and Molecular Medicine‐IPER, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
- School of Medicine Universitat de Barcelona Barcelona Spain
| | - Francesc Palau
- Department of Genetics and Molecular Medicine‐IPER, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
- Division of Pediatrics University of Barcelona School of Medicine and Health Sciences, and Institute of Medicine and Dermatology, Hospital Clínic Barcelona Spain
| | - Seema R. Lalani
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Texas Children's Hospital Houston Texas
| | - Rafael Artuch
- Department of Clinical Biochemistry, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
| | - Angeles García‐Cazorla
- Laboratory of Synaptic Metabolism, Institut de Recerca Sant Joan de Déu and CIBERER (ISCIII) Hospital Sant Joan de Déu Barcelona Spain
- Neurometabolic Unit, Department of Neurology Institut de Recerca, Sant Joan de Déu metabERN and CIBERER (ISCIII), Hospital Sant Joan de Déu Barcelona Spain
| | - Daryl A. Scott
- Department of Molecular and Human Genetics Baylor College of Medicine Houston Texas
- Texas Children's Hospital Houston Texas
- Department of Molecular Physiology and Biophysics Baylor College of Medicine Houston Texas
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7
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Zhu M, Cortese GP, Waites CL. Parkinson's disease-linked Parkin mutations impair glutamatergic signaling in hippocampal neurons. BMC Biol 2018; 16:100. [PMID: 30200940 PMCID: PMC6130078 DOI: 10.1186/s12915-018-0567-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 08/24/2018] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Parkinson's disease (PD)-associated E3 ubiquitin ligase Parkin is enriched at glutamatergic synapses, where it ubiquitinates multiple substrates, suggesting that its mutation/loss-of-function could contribute to the etiology of PD by disrupting excitatory neurotransmission. Here, we evaluate the impact of four common PD-associated Parkin point mutations (T240M, R275W, R334C, G430D) on glutamatergic synaptic function in hippocampal neurons. RESULTS We find that expression of these point mutants in cultured hippocampal neurons from Parkin-deficient and Parkin-null backgrounds alters NMDA and AMPA receptor-mediated currents and cell-surface levels and prevents the induction of long-term depression. Mechanistically, we demonstrate that Parkin regulates NMDA receptor trafficking through its ubiquitination of GluN1, and that all four mutants are impaired in this ubiquitinating activity. Furthermore, Parkin regulates synaptic AMPA receptor trafficking via its binding and retention of the postsynaptic scaffold Homer1, and all mutants are similarly impaired in this capacity. CONCLUSION Our findings demonstrate that pathogenic Parkin mutations disrupt glutamatergic synaptic transmission in hippocampal neurons by impeding NMDA and AMPA receptor trafficking. Such effects may contribute to the pathophysiology of PD in PARK2 patients.
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Affiliation(s)
- Mei Zhu
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
| | - Giuseppe P. Cortese
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
- Department of Psychiatry, Columbia University Medical Center, New York, NY USA
| | - Clarissa L. Waites
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032 USA
- Department of Neuroscience, Columbia University, New York, NY USA
- Waites Lab, 650 W. 168th St. Black Building 1210B, New York, NY 10032 USA
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8
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Use of clinical chromosomal microarray in Chinese patients with autism spectrum disorder-implications of a copy number variation involving DPP10. Mol Autism 2017; 8:31. [PMID: 28670437 PMCID: PMC5485587 DOI: 10.1186/s13229-017-0136-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 04/08/2017] [Indexed: 11/23/2022] Open
Abstract
Background Array comparative genomic hybridization (aCGH) is recommended as a first-tier genetic test for children with autism spectrum disorder (ASD). However, interpretation of results can often be challenging partly due to the fact that copy number variants (CNVs) in non-European ASD patients are not well studied. To address this literature gap, we report the CNV findings in a cohort of Chinese children with ASD. Methods DNA samples were obtained from 258 Chinese ASD patients recruited from a child assessment center between January 2011 and August 2014. aCGH was performed using NimbleGen-CGX-135k or Agilent-CGX 60k oligonucleotide array. Results were classified based on existing guidelines and literature. Results Ten pathogenic CNVs and one likely pathogenic CNV were found in nine patients, with an overall diagnostic yield of 3.5%. A 138 kb duplication involving 3′ exons of DPP10 (arr[GRCh37] 2q14.1(116534689_116672358)x3), reported to be associated with ASD, was identified in one patient (0.39%). The same CNV was reported as variant of uncertain significance (VUS) in DECIPHER database. Multiple individuals of typical development carrying a similar duplication were identified among our ancestry-matched control with a frequency of 6/653 (0.92%) as well as from literature and genomic databases. Conclusions The DPP10 duplication is likely a benign CNV polymorphism enriched in Southern Chinese with a population frequency of ~1%. This highlights the importance of using ancestry-matched controls in interpretation of aCGH findings. Electronic supplementary material The online version of this article (doi:10.1186/s13229-017-0136-x) contains supplementary material, which is available to authorized users.
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