1
|
Souza BR, Codo BC, Romano-Silva MA, Tropepe V. Darpp-32 is regulated by dopamine and is required for the formation of GABAergic neurons in the developing telencephalon. Prog Neuropsychopharmacol Biol Psychiatry 2024; 134:111060. [PMID: 38906412 DOI: 10.1016/j.pnpbp.2024.111060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Revised: 04/22/2024] [Accepted: 06/17/2024] [Indexed: 06/23/2024]
Abstract
DARPP-32 (dopamine and cAMP-regulated phosphoprotein Mr. 32 kDa) is a phosphoprotein that is modulated by multiple receptors integrating intracellular pathways and playing roles in various physiological functions. It is regulated by dopaminergic receptors through the cAMP/protein kinase A (PKA) pathway, which modulates the phosphorylation of threonine 34 (Thr34). When phosphorylated at Thr34, DARPP-32 becomes a potent protein phosphatase-1 (PP1) inhibitor. Since dopamine is involved in the development of GABAergic neurons and DARPP-32 is expressed in the developing brain, it is possible that DARPP-32 has a role in GABAergic neuronal development. We cloned the zebrafish darpp-32 gene (ppp1r1b) gene and observed that it is evolutionarily conserved in its inhibitory domain (Thr34 and surrounding residues) and the docking motif (residues 7-11 (KKIQF)). We also characterized darpp-32 protein expression throughout the 5 days post-fertilization (dpf) zebrafish larval brain by immunofluorescence and demonstrated that darpp-32 is mainly expressed in regions that receive dopaminergic projections (pallium, subpallium, preoptic region, and hypothalamus). We demonstrated that dopamine acutely suppressed darpp-32 activity by reducing the levels of p-darpp-32 in the 5dpf zebrafish larval brain. In addition, the knockdown of darpp-32 resulted in a decrease in the number of GABAergic neurons in the subpallium of the 5dpf larval brain, with a concomitant increase in the number of DAergic neurons. Finally, we demonstrated that darpp-32 downregulation during development reduced the motor behavior of 5dpf zebrafish larvae. Thus, our observations suggest that darpp-32 is an evolutionarily conserved regulator of dopamine receptor signaling and is required for the formation of GABAergic neurons in the developing telencephalon.
Collapse
Affiliation(s)
- Bruno Rezende Souza
- Laboratório NeuroDEv, Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil 31270-901; Laboratório de Neurociências Molecular e Comportamental (LANEC) - Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil.
| | - Beatriz Campos Codo
- Laboratório NeuroDEv, Department of Physiology and Biophysics, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil 31270-901; Laboratório de Neurociências Molecular e Comportamental (LANEC) - Universidade Federal de Minas Gerais, Belo Horizonte, MG 31270-901, Brazil
| | - Marco Aurélio Romano-Silva
- Laboratório de Neurociências and INCT de Medicina Molecular, Department of Mental Health, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil 30130-100
| | - Vincent Tropepe
- Department of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada M5S 3G5.
| |
Collapse
|
2
|
Nagaoka A, Hino M, Izumi R, Shishido R, Ishibashi M, Hatano M, Sainouchi M, Kakita A, Tomita H, Kunii Y. Availability of individual proteins for quantitative analysis in postmortem brains preserved in two different brain banks. Neuropsychopharmacol Rep 2024; 44:399-409. [PMID: 38558385 PMCID: PMC11144605 DOI: 10.1002/npr2.12430] [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: 08/31/2023] [Revised: 02/22/2024] [Accepted: 02/26/2024] [Indexed: 04/04/2024] Open
Abstract
AIM Postmortem brain research is necessary for elucidating the pathology of schizophrenia; an increasing number of studies require a combination of suitable tissue samples preserved at multiple brain banks. In this study, we examined whether a comparative study of protein expression levels can be conducted using postmortem brain samples preserved in different facilities. METHODS We compared the demographic factors of postmortem brain samples preserved in two institutions and measured and compared the expression levels of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and glial fibrillary acidic protein (GFAP) in the prefrontal cortex and superior temporal gyrus. GAPDH is generally used as a loading control for western blotting, and GFAP is considered as an astrocyte marker in the brain. RESULTS We found significant differences between the two institutions in postmortem interval, age at death, and preservation time. To reduce the effects of these differences on our measurements, the parameters were set as covariates in our analyses of covariance. Subsequently, no differences in GAPDH and GFAP expression were found between institutions. CONCLUSIONS When studies are conducted using brain samples preserved in different brain banks, differences in demographic factors should be carefully considered and taken into account by statistical methods to minimize their impact as much as possible. Since there was no significant difference in the protein expression levels of GAPDH and GFAP in either region between the two institutions that preserved the postmortem brains, we concluded that it is possible to perform protein quantitative analysis assuming that there is no effect of difference between two institutions.
Collapse
Affiliation(s)
- Atsuko Nagaoka
- Department of PsychiatryTohoku University HospitalSendaiJapan
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
| | - Mizuki Hino
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
- Department of Disaster Psychiatry, International Research Institute of Disaster ScienceTohoku UniversitySendaiJapan
| | - Ryuta Izumi
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
| | - Risa Shishido
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
| | - Miki Ishibashi
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
| | - Masataka Hatano
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
| | - Makoto Sainouchi
- Department of Pathology, Brain Research InstituteNiigata UniversityNiigataJapan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research InstituteNiigata UniversityNiigataJapan
| | - Hiroaki Tomita
- Department of PsychiatryTohoku University HospitalSendaiJapan
- Department of Disaster Psychiatry, International Research Institute of Disaster ScienceTohoku UniversitySendaiJapan
- Department of Psychiatry, Graduate School of MedicineTohoku UniversitySendaiJapan
| | - Yasuto Kunii
- Department of PsychiatryTohoku University HospitalSendaiJapan
- Department of Neuropsychiatry, School of MedicineFukushima Medical UniversityFukushimaJapan
- Department of Disaster Psychiatry, International Research Institute of Disaster ScienceTohoku UniversitySendaiJapan
| |
Collapse
|
3
|
Kunii Y, Hino M, Tomita H. Editorial: Molecular pathology in psychiatric diseases: frontiers of postmortem brain research. Front Psychiatry 2023; 14:1286182. [PMID: 37829758 PMCID: PMC10565467 DOI: 10.3389/fpsyt.2023.1286182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 09/13/2023] [Indexed: 10/14/2023] Open
Affiliation(s)
- Yasuto Kunii
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
- Department of Psychiatry, Tohoku University Hospital, Miyagi, Japan
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Miyagi, Japan
| | - Mizuki Hino
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Hiroaki Tomita
- Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
- Department of Psychiatry, Tohoku University Hospital, Miyagi, Japan
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Miyagi, Japan
| |
Collapse
|
4
|
Sønderstrup M, Batiuk MY, Mantas P, Tapias-Espinosa C, Oliveras I, Cañete T, Sampedro-Viana D, Brudek T, Rydbirk R, Khodosevich K, Fernandez-Teruel A, Elfving B, Aznar S. A maturational shift in the frontal cortex synaptic transcriptional landscape underlies schizophrenia-relevant behavioural traits: A congenital rat model. Eur Neuropsychopharmacol 2023; 74:32-46. [PMID: 37263043 DOI: 10.1016/j.euroneuro.2023.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/05/2023] [Accepted: 05/10/2023] [Indexed: 06/03/2023]
Abstract
Disruption of brain development early in life may underlie the neurobiology behind schizophrenia. We have reported more immature synaptic spines in the frontal cortex (FC) of adult Roman High-Avoidance (RHA-I) rats, a behavioural model displaying schizophrenia-like traits. Here, we performed a whole transcriptome analysis in the FC of 4 months old male RHA-I (n=8) and its counterpart, the Roman Low-Avoidance (RLA-I) (n=8). We identified 203 significant genes with overrepresentation of genes involved in synaptic function. Next, we performed a gene set enrichment analysis (GSEA) for genes co-expressed during neurodevelopment. Gene networks were obtained by weighted gene co-expression network analysis (WGCNA) of a transcriptomic dataset containing human FC during lifespan (n=269). Out of thirty-one functional gene networks, six were significantly enriched in the RHA-I. These were differentially regulated during infancy and enriched in biological ontologies related to myelination, synaptic function, and immune response. We validated differential gene expression in a new cohort of adolescent (<=2 months old) and young-adult (>=3 months old) RHA-I and RLA-I rats. The results confirmed overexpression of Gsn, Nt5cd1, Ppp1r1b, and Slc9a3r1 in young-adult RHA-I, while Cables1, a regulator of Cdk5 phosphorylation in actin regulation and involved in synaptic plasticity and maturation, was significantly downregulated in adolescent RHA-I. This age-related expression change was also observed for presynaptic components Snap25 and Snap29. Our results show a different maturational expression profile of synaptic components in the RHA-I strain, supporting a shift in FC maturation underlying schizophrenia-like behavioural traits and adding construct validity to this strain as a neurodevelopmental model.
Collapse
Affiliation(s)
- Marie Sønderstrup
- Centre for Neuroscience and Stereology, Copenhagen University Hospital Bispebjerg-Frederiksberg, Denmark; Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Denmark
| | - Mykhailo Y Batiuk
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Panagiotis Mantas
- Department of Health Technology, Technical University of Denmark (DTU), Denmark
| | - Carles Tapias-Espinosa
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universidad Autónoma de Barcelona, Spain
| | - Ignasi Oliveras
- Centre for Neuroscience and Stereology, Copenhagen University Hospital Bispebjerg-Frederiksberg, Denmark; Department of Psychiatry and Forensic Medicine, School of Medicine, Universidad Autónoma de Barcelona, Spain
| | - Toni Cañete
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universidad Autónoma de Barcelona, Spain
| | - Daniel Sampedro-Viana
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universidad Autónoma de Barcelona, Spain
| | - Tomasz Brudek
- Centre for Neuroscience and Stereology, Copenhagen University Hospital Bispebjerg-Frederiksberg, Denmark; Center for Translational Research, Copenhagen University Hospital Bispebjerg-Frederiksberg, Denmark
| | - Rasmus Rydbirk
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Konstantin Khodosevich
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Alberto Fernandez-Teruel
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universidad Autónoma de Barcelona, Spain.
| | - Betina Elfving
- Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Denmark
| | - Susana Aznar
- Centre for Neuroscience and Stereology, Copenhagen University Hospital Bispebjerg-Frederiksberg, Denmark; Center for Translational Research, Copenhagen University Hospital Bispebjerg-Frederiksberg, Denmark.
| |
Collapse
|
5
|
Ma H, Qiu R, Zhang W, Chen X, Zhang L, Wang M. Association of PPP1R1B polymorphisms with working memory in healthy Han Chinese adults. Front Neurosci 2022; 16:989046. [PMID: 36440265 PMCID: PMC9685989 DOI: 10.3389/fnins.2022.989046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/10/2022] [Indexed: 11/11/2022] Open
Abstract
Aims The dopamine- and cAMP-regulated phosphoprotein (DARPP-32), which is encoded by the PPP1R1B gene, plays a converging regulatory role in the central nervous system by mediating the actions of dopamine, serotonin, and glutamate. Previous studies have demonstrated that variations in genes related to the dopamine system influence working memory. The present study thus investigated whether polymorphisms in PPP1R1B gene were associated with working memory. Materials and methods A sample of 124 healthy Han Chinese were genotyped for three single nucleotide polymorphisms of PPP1R1B gene, namely rs12601930C/T, rs879606A/G, and rs3764352A/G, using polymerase chain reaction and restriction fragment length polymorphism analysis. Working memory performance was assessed using the Wisconsin Card Sorting Test (WCST). Results Significant differences were observed in the Total Correct (TC), Total Errors (TE), and Conceptual Level Responses (CLR) scores of the WCST among the three rs12601930C/T genotypes (p = 0.044, 0.044, and 0.047, respectively); in TC, TE, Non-Perseverative Errors (NPE), and CLR scores between participants with the CC and (CT + TT) rs12601930C/T polymorphism genotypes (p = 0.032, 0.032, 0.019, and 0.029, respectively); in TC, TE, Perseverative Errors (PE), NPE, and CLR scores between participants with the (CT + CC) and TT rs12601930C/T polymorphism genotypes (p = 0.001, 0.001, 0.011, 0.004, and 0.001, respectively); and in NPE and CLR scores between participants with the GG and (AG + AA) genotypes of the rs3764352A/G polymorphism (p = 0.011 and 0.010). Furthermore, for males only, there were significant differences in TC, TE, PE, NPE, and CLR scores among the rs12601930C/T genotypes (p = 0.020, 0.020, 0.037, 0.029, and 0.014, respectively) and NPE and CLR scores among the rs3764352 genotypes (p = 0.045 and 0.042). Conclusion PPP1R1B gene polymorphisms rs12601930C/T and rs3764352A/G might be associated with working memory assessed by the WCST in healthy Chinese adults, especially among males.
Collapse
Affiliation(s)
- Hui Ma
- Hainan Provincial Institute of Mental Health, Hainan Provincial Anning Hospital, Haikou, Hainan, China
| | - Riyang Qiu
- Department of Precision Therapy, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Department of Precision Therapy, Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Wenya Zhang
- Department of Precision Therapy, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Department of Precision Therapy, Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Xiaohong Chen
- Department of Precision Therapy, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Department of Precision Therapy, Shenzhen Mental Health Center, Shenzhen, Guangdong, China
| | - Liguo Zhang
- Department of Psychiatry, The Third Hospital of Heilongjiang Province, Bei’an, Heilongjiang, China
| | - Man Wang
- Department of Precision Therapy, Shenzhen Kangning Hospital, Shenzhen, Guangdong, China
- Department of Precision Therapy, Shenzhen Mental Health Center, Shenzhen, Guangdong, China
- *Correspondence: Man Wang,
| |
Collapse
|
6
|
Song S, Creus Muncunill J, Galicia Aguirre C, Tshilenge KT, Hamilton BW, Gerencser AA, Benlhabib H, Cirnaru MD, Leid M, Mooney SD, Ellerby LM, Ehrlich ME. Postnatal Conditional Deletion of Bcl11b in Striatal Projection Neurons Mimics the Transcriptional Signature of Huntington's Disease. Biomedicines 2022; 10:2377. [PMID: 36289639 PMCID: PMC9598565 DOI: 10.3390/biomedicines10102377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/15/2022] [Accepted: 08/19/2022] [Indexed: 11/16/2022] Open
Abstract
The dysregulation of striatal gene expression and function is linked to multiple diseases, including Huntington's disease (HD), Parkinson's disease, X-linked dystonia-parkinsonism (XDP), addiction, autism, and schizophrenia. Striatal medium spiny neurons (MSNs) make up 90% of the neurons in the striatum and are critical to motor control. The transcription factor, Bcl11b (also known as Ctip2), is required for striatal development, but the function of Bcl11b in adult MSNs in vivo has not been investigated. We conditionally deleted Bcl11b specifically in postnatal MSNs and performed a transcriptomic and behavioral analysis on these mice. Multiple enrichment analyses showed that the D9-Cre-Bcl11btm1.1Leid transcriptional profile was similar to the HD gene expression in mouse and human data sets. A Gene Ontology enrichment analysis linked D9-Cre-Bcl11btm1.1Leid to calcium, synapse organization, specifically including the dopaminergic synapse, protein dephosphorylation, and HDAC-signaling, commonly dysregulated pathways in HD. D9-Cre-Bcl11btm1.1Leid mice had decreased DARPP-32/Ppp1r1b in MSNs and behavioral deficits, demonstrating the dysregulation of a subtype of the dopamine D2 receptor expressing MSNs. Finally, in human HD isogenic MSNs, the mislocalization of BCL11B into nuclear aggregates points to a mechanism for BCL11B loss of function in HD. Our results suggest that BCL11B is important for the function and maintenance of mature MSNs and Bcl11b loss of function drives, in part, the transcriptomic and functional changes in HD.
Collapse
Affiliation(s)
- Sicheng Song
- Department of Biomedical Informatics and Medical Education, School of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Jordi Creus Muncunill
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Carlos Galicia Aguirre
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Ave, Los Angeles, CA 90893, USA
| | | | - B. Wade Hamilton
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | | | - Houda Benlhabib
- Department of Biomedical Informatics and Medical Education, School of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Maria-Daniela Cirnaru
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Mark Leid
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, WA 99202, USA
| | - Sean D. Mooney
- Department of Biomedical Informatics and Medical Education, School of Medicine, University of Washington, Seattle, WA 98109, USA
| | - Lisa M. Ellerby
- Buck Institute for Research on Aging, Novato, CA 94945, USA
- Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Ave, Los Angeles, CA 90893, USA
| | - Michelle E. Ehrlich
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| |
Collapse
|
7
|
Huang Y, Liu Y, Wu Y, Tang Y, Zhang M, Liu S, Xiao L, Tao S, Xie M, Dai M, Li M, Gui H, Wang Q. Patterns of Convergence and Divergence Between Bipolar Disorder Type I and Type II: Evidence From Integrative Genomic Analyses. Front Cell Dev Biol 2022; 10:956265. [PMID: 35912095 PMCID: PMC9334650 DOI: 10.3389/fcell.2022.956265] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/21/2022] [Indexed: 01/05/2023] Open
Abstract
Aim: Genome-wide association studies (GWAS) analyses have revealed genetic evidence of bipolar disorder (BD), but little is known about the genetic structure of BD subtypes. We aimed to investigate the genetic overlap and distinction of bipolar type I (BD I) & type II (BD II) by conducting integrative post-GWAS analyses. Methods: We utilized single nucleotide polymorphism (SNP)–level approaches to uncover correlated and distinct genetic loci. Transcriptome-wide association analyses (TWAS) were then approached to pinpoint functional genes expressed in specific brain tissues and blood. Next, we performed cross-phenotype analysis, including exploring the potential causal associations between two BD subtypes and lithium responses and comparing the difference in genetic structures among four different psychiatric traits. Results: SNP-level evidence revealed three genomic loci, SLC25A17, ZNF184, and RPL10AP3, shared by BD I and II, and one locus (MAD1L1) and significant gene sets involved in calcium channel activity, neural and synapsed signals that distinguished two subtypes. TWAS data implicated different genes affecting BD I and II through expression in specific brain regions (nucleus accumbens for BD I). Cross-phenotype analyses indicated that BD I and II share continuous genetic structures with schizophrenia and major depressive disorder, which help fill the gaps left by the dichotomy of mental disorders. Conclusion: These combined evidences illustrate genetic convergence and divergence between BD I and II and provide an underlying biological and trans-diagnostic insight into major psychiatric disorders.
Collapse
Affiliation(s)
- Yunqi Huang
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Yunjia Liu
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Yulu Wu
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Yiguo Tang
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Mengting Zhang
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Siyi Liu
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Liling Xiao
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Shiwan Tao
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Min Xie
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Minhan Dai
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Mingli Li
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
| | - Hongsheng Gui
- Center for Health Policy & Health Services Research, Henry Ford Health System, Detroit, MI, United States
- Behavioral Health Services, Henry Ford Health System, Detroit, MI, United States
- *Correspondence: Hongsheng Gui, ; Qiang Wang,
| | - Qiang Wang
- Mental Health Center and Psychiatric Laboratory, State Key Laboratory of Biotherapy, West China Hospital of Sichuan University, Chengdu, China
- West China Brain Research Center, West China Hospital of Sichuan University, Chengdu, China
- Sichuan Clinical Medical Research Center for Mental Disorders, Chengdu, China
- *Correspondence: Hongsheng Gui, ; Qiang Wang,
| |
Collapse
|
8
|
Khan A, Molitor A, Mayeur S, Zhang G, Rinaldi B, Lannes B, Lhermitte B, Umair M, Arold ST, Friant S, Rastegar S, Anheim M, Bahram S, Carapito R. A Homozygous Missense Variant in PPP1R1B/DARPP-32 Is Associated With Generalized Complex Dystonia. Mov Disord 2021; 37:365-374. [PMID: 34820905 DOI: 10.1002/mds.28861] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/16/2021] [Accepted: 10/18/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND The dystonias are a heterogeneous group of hyperkinetic disorders characterized by sustained or intermittent muscle contractions that cause abnormal movements and/or postures. Although more than 200 causal genes are known, many cases of primary dystonia have no clear genetic cause. OBJECTIVES To identify the causal gene in a consanguineous family with three siblings affected by a complex persistent generalized dystonia, generalized epilepsy, and mild intellectual disability. METHODS We performed exome sequencing in the parents and two affected siblings and characterized the expression of the identified gene by immunohistochemistry in control human and zebrafish brains. RESULTS We identified a novel missense variant (c.142G>A (NM_032192); p.Glu48Lys) in the protein phosphatase 1 regulatory inhibitor subunit 1B gene (PPP1R1B) that was homozygous in all three siblings and heterozygous in the parents. This gene is also known as dopamine and cAMP-regulated neuronal phosphoprotein 32 (DARPP-32) and has been involved in the pathophysiology of abnormal movements. The uncovered variant is absent in public databases and modifies the conserved glutamate 48 localized close to the serine 45 phosphorylation site. The PPP1R1B protein was shown to be expressed in cells and regions involved in movement control, including projection neurons of the caudate-putamen, substantia nigra neuropil, and cerebellar Purkinje cells. The latter cells were also confirmed to be positive for PPP1R1B expression in the zebrafish brain. CONCLUSIONS We report the association of a PPP1R1B/DARPP-32 variant with generalized dystonia in man. It might be relevant to include the sequencing of this new gene in the diagnosis of patients with otherwise unexplained movement disorders. © 2021 International Parkinson and Movement Disorder Society.
Collapse
Affiliation(s)
- Amjad Khan
- Laboratoire d'ImmunoRhumatologie Moléculaire, Plateforme GENOMAX, INSERM UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, ITI TRANSPLANTEX NG, Université de Strasbourg, Strasbourg, France.,Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Faculty of Science, Department of Biological Sciences (Zoology), University of Lakki Marwat, Lakki Marwat, Khyber Pakhtunkhwa, Pakistan
| | - Anne Molitor
- Laboratoire d'ImmunoRhumatologie Moléculaire, Plateforme GENOMAX, INSERM UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, ITI TRANSPLANTEX NG, Université de Strasbourg, Strasbourg, France.,Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France
| | - Sylvain Mayeur
- Laboratoire d'ImmunoRhumatologie Moléculaire, Plateforme GENOMAX, INSERM UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, ITI TRANSPLANTEX NG, Université de Strasbourg, Strasbourg, France.,Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Department of Pathology, Strasbourg University Hospitals, Strasbourg, France
| | - Gaoqun Zhang
- Institute of Biological and Chemical Systems-Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Bruno Rinaldi
- Laboratoire de Génétique Moléculaire, Génomique, Microbiologie, GMGM UMR7156 CNRS/Université de Strasbourg, IPCB, Strasbourg, France
| | - Béatrice Lannes
- Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Department of Pathology, Strasbourg University Hospitals, Strasbourg, France
| | - Benoît Lhermitte
- Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Department of Pathology, Strasbourg University Hospitals, Strasbourg, France
| | - Muhammad Umair
- Medical Genomics Research Department, King Abdullah International Research Center (KAIMRC), King Saud Bin Abdulaziz University for Health Sciences, King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia.,Department of Life Sciences, School of Science, University of Management and Technology (UMT), Lahore, Pakistan
| | - Stefan T Arold
- King Abdullah University of Science and Technology (KAUST), Computational Bioscience Research Center (CBRC), Division of Biological and Environmental Sciences and Engineering (BESE), Thuwal, Saudi Arabia.,Centre de Biologie Structurale, CNRS, INSERM, Université de Montpellier, Montpellier, France
| | - Sylvie Friant
- Laboratoire de Génétique Moléculaire, Génomique, Microbiologie, GMGM UMR7156 CNRS/Université de Strasbourg, IPCB, Strasbourg, France
| | - Sepand Rastegar
- Institute of Biological and Chemical Systems-Biological Information Processing (IBCS-BIP), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
| | - Mathieu Anheim
- Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Department of Neurology, Strasbourg University Hospitals, Strasbourg, France.,INSERM UMR_S 964; CNRS UMR 7104, University of Strasbourg, Illkirch-Graffenstaden, France
| | - Seiamak Bahram
- Laboratoire d'ImmunoRhumatologie Moléculaire, Plateforme GENOMAX, INSERM UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, ITI TRANSPLANTEX NG, Université de Strasbourg, Strasbourg, France.,Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Service d'Immunologie Biologique, Plateau Technique de Biologie, Pôle de Biologie, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Raphael Carapito
- Laboratoire d'ImmunoRhumatologie Moléculaire, Plateforme GENOMAX, INSERM UMR_S 1109, Faculté de Médecine, Fédération Hospitalo-Universitaire OMICARE, ITI TRANSPLANTEX NG, Université de Strasbourg, Strasbourg, France.,Strasbourg Federation of Translational Medicine (FMTS), Strasbourg University, Strasbourg, France.,Service d'Immunologie Biologique, Plateau Technique de Biologie, Pôle de Biologie, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| |
Collapse
|
9
|
Izumi R, Hino M, Nagaoka A, Shishido R, Kakita A, Hoshino M, Kunii Y, Yabe H. Dysregulation of DPYSL2 expression by mTOR signaling in schizophrenia: Multi-level study of postmortem brain. Neurosci Res 2021; 175:73-81. [PMID: 34543692 DOI: 10.1016/j.neures.2021.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 01/26/2023]
Abstract
The mechanistic target of rapamycin (mTOR)-signaling and dihydropyrimidinase-like 2 (DPYSL2), which are increasingly gaining attention as potential therapeutic targets for schizophrenia, are connected via Cap-dependent translation of the 5'TOP motif. We quantified the expression of molecules constituting the mTOR-signaling and DPYSL2 in the prefrontal cortex (PFC) and superior temporal gyrus (STG) of postmortem brain tissue samples from 24 patients with schizophrenia and 32 control individuals and conducted association analysis to examine abnormal regulation of DPYSL2 expression by the mTOR-signaling in schizophrenia. The average ribosomal protein S6 (S6) levels in the PFC and STG were lower in patients with schizophrenia (p < 0.01). DPYSL2 expression showed a significant positive correlation with phospho-S6 expression levels, which were effectors of mTOR translational regulation, and the correlation slope between phospho-S6 and DPYSL2 expressions differed between cases and controls. Association analyses of these mTOR-signaling and DPYSL2 alterations with genetic polymorphisms and the clinical profile suggested that certain genetic variants of DPYSL2 require high mTOR-signaling activity. Thus, the findings confirmed decreased S6 expression levels in schizophrenia and supported the relationship between the mTOR-signaling and DPYSL2 via 5'TOP Cap-dependent translation, thus providing insights connecting the two major schizophrenia treatment strategies associated with the mTOR-signaling and DPYSL2.
Collapse
Affiliation(s)
- Ryuta Izumi
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan; Department of Psychology, Takeda General Hospital, Aizuwakamatu, Japan
| | - Mizuki Hino
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan; Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Atsuko Nagaoka
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Risa Shishido
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| | - Akiyoshi Kakita
- Department of Pathology, Brain Research Institute, Niigata University, Niigata, Japan
| | - Mikio Hoshino
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yasuto Kunii
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan; Department of Disaster Psychiatry, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan.
| | - Hirooki Yabe
- Department of Neuropsychiatry, School of Medicine, Fukushima Medical University, Fukushima, Japan
| |
Collapse
|
10
|
Kim WD, Yap SQ, Huber RJ. A Proteomics Analysis of Calmodulin-Binding Proteins in Dictyostelium discoideum during the Transition from Unicellular Growth to Multicellular Development. Int J Mol Sci 2021; 22:ijms22041722. [PMID: 33572113 PMCID: PMC7915506 DOI: 10.3390/ijms22041722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/22/2021] [Accepted: 02/05/2021] [Indexed: 11/24/2022] Open
Abstract
Calmodulin (CaM) is an essential calcium-binding protein within eukaryotes. CaM binds to calmodulin-binding proteins (CaMBPs) and influences a variety of cellular and developmental processes. In this study, we used immunoprecipitation coupled with mass spectrometry (LC-MS/MS) to reveal over 500 putative CaM interactors in the model organism Dictyostelium discoideum. Our analysis revealed several known CaMBPs in Dictyostelium and mammalian cells (e.g., myosin, calcineurin), as well as many novel interactors (e.g., cathepsin D). Gene ontology (GO) term enrichment and Search Tool for the Retrieval of Interacting proteins (STRING) analyses linked the CaM interactors to several cellular and developmental processes in Dictyostelium including cytokinesis, gene expression, endocytosis, and metabolism. The primary localizations of the CaM interactors include the nucleus, ribosomes, vesicles, mitochondria, cytoskeleton, and extracellular space. These findings are not only consistent with previous work on CaM and CaMBPs in Dictyostelium, but they also provide new insight on their diverse cellular and developmental roles in this model organism. In total, this study provides the first in vivo catalogue of putative CaM interactors in Dictyostelium and sheds additional light on the essential roles of CaM and CaMBPs in eukaryotes.
Collapse
Affiliation(s)
- William D. Kim
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON K9L 0G2, Canada; (W.D.K.); (S.Q.Y.)
| | - Shyong Q. Yap
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON K9L 0G2, Canada; (W.D.K.); (S.Q.Y.)
| | - Robert J. Huber
- Department of Biology, Trent University, Peterborough, ON K9L 0G2, Canada
- Correspondence: ; Tel.: +1-705-748-1011 (ext. 7316)
| |
Collapse
|
11
|
Abstract
DARPP-32 (dopamine- and cAMP-regulated phosphoprotein with an apparent Mr of 32,000), now also known as phosphoprotein phosphatase 1 regulatory subunit 1B (PPP1R1B), is a potent inhibitor of protein phosphatase 1 (PP1, also known as PPP1) when phosphorylated at Thr34 by cAMP-dependent protein kinase (PKA). DARPP-32 exhibits a remarkable regional distribution in brain, roughly similar to that of dopamine innervation. Its discovery was a culmination of the long-standing effort of Paul Greengard to understand the mechanisms through which neurotransmitters such as dopamine exert their effects on target neurons. DARPP-32 is particularly enriched in striatal projection neurons where it is regulated by numerous signals through which it integrates and amplifies responses to many stimuli. Molecular studies of DARPP-32 have revealed that its regulation and function are more complex than anticipated. It is phosphorylated on multiple sites by several protein kinases that modulate DARPP-32 properties. Primarily, when phosphorylated at Thr34 DARPP-32 is a potent inhibitor of PP1, whereas when phosphorylated at Thr75 by Cdk5 it inhibits PKA. Phosphorylation at serine residues by CK1 and CK2 modulates its intracellular localization and its sensitivity to kinases or phosphatases. Modeling studies provide evidence that the signaling pathways including DARPP-32 are endowed of strong robustness and bistable properties favoring switch-like responses. Thus DARPP-32 combined with a set of other distinct signaling molecules enriched in striatal projection neurons plays a key role in the characteristic properties and physiological function of these neurons.
Collapse
|
12
|
Transcriptome-wide association study for restless legs syndrome identifies new susceptibility genes. Commun Biol 2020; 3:373. [PMID: 32651461 PMCID: PMC7351781 DOI: 10.1038/s42003-020-1105-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/24/2020] [Indexed: 11/16/2022] Open
Abstract
Restless legs syndrome (RLS) is a common neurological condition, with a prevalence of 5–15% in Central Europe and North America. Although genome-wide association studies (GWAS) have identified some common risk regions for RLS, the causal genes have yet to be fully elucidated. We conducted a transcriptome-wide association study involving 15,126 RLS cases and 95,725 controls, from the most recent meta-analysis of GWAS, and gene expression weights of GTEx v7 and the CMC dorsolateral prefrontal cortex tissue panels. We identified 13 associations (in 8 independent loci) at the transcriptome-wide significant level, of which 6 were not implicated in the previous GWAS: SKAP1, SLC36A1, CCDC57, FN3KRP, NCOA6/TRPC4AP. A fine-mapping approach prioritized CMTR1, RP1-153P14.5, PRPF6, and PPP3R1 – to our knowledge, the latter of which is the first RLS-associated gene directly implicated in dopaminergic pathways. Overall, our findings highlight the power of integrating gene expression data with GWAS to prioritize putative causal genes for functional follow-up studies. Fulya Akçimen et al. report a transcriptome-wide association study of restless legs syndrome using publicly available data from genome-wide association studies and gene expression data from GTEx. They find significant associations at 8 loci, 6 of which are novel and one of which implicates dopaminergic pathway.
Collapse
|