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Esmel-Vilomara R, Dougherty-De Miguel L, Artigas-Baleri A, Turón-Viñas E, Cuscó I, Díaz-Gómez A, Panadés-De Oliveira L, Rocamora R, Boronat S. Cardiovascular abnormalities in patients with SHANK3 pathogenic variants: beyond neurodevelopmental disorders and epilepsy. Eur J Med Genet 2024:104965. [PMID: 39094681 DOI: 10.1016/j.ejmg.2024.104965] [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: 04/23/2024] [Revised: 07/04/2024] [Accepted: 07/30/2024] [Indexed: 08/04/2024]
Abstract
Neurodevelopmental disorders have been linked to numerous genes, particularly pathogenic variants in genes encoding postsynaptic scaffolding proteins, like SHANK3. This study aims to provide insights into the cardiovascular profile of patients with pathogenic SHANK3 variants, expanding beyond the well-established associations with neurodevelopmental disorders and epilepsy. We conducted a prospective study involving patients affected by neurodevelopmental disorders with pathogenic SHANK3 variants. Comprehensive cardiovascular assessments were performed and molecular genetic testing included chromosomal microarray followed by clinical exome sequencing. We identified five patients with de novo SHANK3 variants, all of whom exhibited cardiac involvement, including myocardial dysfunction, congenital heart disease (patent ductus arteriosus), and a case of postictal atrial fibrillation. Our findings emphasize an elevated risk of cardiovascular abnormalities in patients with SHANK3 pathogenic variants compared to prior reports. Despite their young age, these patients displayed significant cardiac abnormalities. The study highlights the necessity of integrating cardiac evaluation and ongoing cardiovascular monitoring into multidisciplinary care, facilitating early detection of heart failure and assessment of the risk of sudden unexpected death in epilepsy (SUDEP). Further research is needed to elucidate the underlying mechanisms of cardiac manifestations in SHANK3 mutation carriers.
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Affiliation(s)
- Roger Esmel-Vilomara
- Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona (Spain); Pediatric Cardiology Unit, Department of Pediatrics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain).
| | - Lucy Dougherty-De Miguel
- Pediatric Neurology Unit, Department of Pediatrics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain).
| | - Alícia Artigas-Baleri
- Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona (Spain); Department of Genetics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain).
| | - Eulàlia Turón-Viñas
- Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona (Spain); Pediatric Neurology Unit, Department of Pediatrics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain).
| | - Ivon Cuscó
- Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona (Spain); Department of Genetics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain); Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (Spain).
| | - Asunción Díaz-Gómez
- Pediatric Neurology Unit, Department of Pediatrics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain).
| | | | - Rodrigo Rocamora
- Epilepsy Monitoring Unit, Department of Neurology. Hospital del Mar, Barcelona (Spain).
| | - Susana Boronat
- Faculty of Medicine, Universitat Autònoma de Barcelona, Barcelona (Spain); Pediatric Neurology Unit, Department of Pediatrics. Hospital de la Santa Creu i Sant Pau, Sant Pau Biomedical Research Institute (IIB Sant Pau), Barcelona (Spain).
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2
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Xu QW, Larosa A, Wong TP. Roles of AMPA receptors in social behaviors. Front Synaptic Neurosci 2024; 16:1405510. [PMID: 39056071 PMCID: PMC11269240 DOI: 10.3389/fnsyn.2024.1405510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 06/24/2024] [Indexed: 07/28/2024] Open
Abstract
As a crucial player in excitatory synaptic transmission, AMPA receptors (AMPARs) contribute to the formation, regulation, and expression of social behaviors. AMPAR modifications have been associated with naturalistic social behaviors, such as aggression, sociability, and social memory, but are also noted in brain diseases featuring impaired social behavior. Understanding the role of AMPARs in social behaviors is timely to reveal therapeutic targets for treating social impairment in disorders, such as autism spectrum disorder and schizophrenia. In this review, we will discuss the contribution of the molecular composition, function, and plasticity of AMPARs to social behaviors. The impact of targeting AMPARs in treating brain disorders will also be discussed.
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Affiliation(s)
- Qi Wei Xu
- Douglas Hospital Research Centre, Montreal, QC, Canada
| | - Amanda Larosa
- Douglas Hospital Research Centre, Montreal, QC, Canada
| | - Tak Pan Wong
- Douglas Hospital Research Centre, Montreal, QC, Canada
- Department of Psychiatry, McGill University, Montreal, QC, Canada
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3
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Guerra M, Medici V, La Sala G, Farini D. Unravelling the Cerebellar Involvement in Autism Spectrum Disorders: Insights into Genetic Mechanisms and Developmental Pathways. Cells 2024; 13:1176. [PMID: 39056758 PMCID: PMC11275240 DOI: 10.3390/cells13141176] [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: 05/30/2024] [Revised: 07/05/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Autism spectrum disorders (ASDs) are complex neurodevelopmental conditions characterized by deficits in social interaction and communication, as well as repetitive behaviors. Although the etiology of ASD is multifactorial, with both genetic and environmental factors contributing to its development, a strong genetic basis is widely recognized. Recent research has identified numerous genetic mutations and genomic rearrangements associated with ASD-characterizing genes involved in brain development. Alterations in developmental programs are particularly harmful during critical periods of brain development. Notably, studies have indicated that genetic disruptions occurring during the second trimester of pregnancy affect cortical development, while disturbances in the perinatal and early postnatal period affect cerebellar development. The developmental defects must be viewed in the context of the role of the cerebellum in cognitive processes, which is now well established. The present review emphasizes the genetic complexity and neuropathological mechanisms underlying ASD and aims to provide insights into the cerebellar involvement in the disorder, focusing on recent advances in the molecular landscape governing its development in humans. Furthermore, we highlight when and in which cerebellar neurons the ASD-associated genes may play a role in the development of cortico-cerebellar circuits. Finally, we discuss improvements in protocols for generating cerebellar organoids to recapitulate the long period of development and maturation of this organ. These models, if generated from patient-induced pluripotent stem cells (iPSC), could provide a valuable approach to elucidate the contribution of defective genes to ASD pathology and inform diagnostic and therapeutic strategies.
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Affiliation(s)
- Marika Guerra
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Hearth, 00168 Rome, Italy; (M.G.); (V.M.)
| | - Vanessa Medici
- Department of Neuroscience, Section of Human Anatomy, Catholic University of the Sacred Hearth, 00168 Rome, Italy; (M.G.); (V.M.)
| | - Gina La Sala
- Institute of Biochemistry and Cell Biology, Italian National Research Council (CNR), 00015 Monterotondo Scalo, Italy
| | - Donatella Farini
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, 00133 Rome, Italy
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4
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Okuzono S, Fujii F, Setoyama D, Taira R, Shinmyo Y, Kato H, Masuda K, Yonemoto K, Akamine S, Matsushita Y, Motomura Y, Sakurai T, Kawasaki H, Han K, Kato TA, Torisu H, Kang D, Nakabeppu Y, Ohga S, Sakai Y. An N-terminal and ankyrin repeat domain interactome of Shank3 identifies the protein complex with the splicing regulator Nono in mice. Genes Cells 2024. [PMID: 38964745 DOI: 10.1111/gtc.13142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 06/17/2024] [Accepted: 06/20/2024] [Indexed: 07/06/2024]
Abstract
An autism-associated gene Shank3 encodes multiple splicing isoforms, Shank3a-f. We have recently reported that Shank3a/b-knockout mice were more susceptible to kainic acid-induced seizures than wild-type mice at 4 weeks of age. Little is known, however, about how the N-terminal and ankyrin repeat domains (NT-Ank) of Shank3a/b regulate multiple molecular signals in the developing brain. To explore the functional roles of Shank3a/b, we performed a mass spectrometry-based proteomic search for proteins interacting with GFP-tagged NT-Ank. In this study, NT-Ank was predicted to form a variety of complexes with a total of 348 proteins, in which RNA-binding (n = 102), spliceosome (n = 22), and ribosome-associated molecules (n = 9) were significantly enriched. Among them, an X-linked intellectual disability-associated protein, Nono, was identified as a NT-Ank-binding protein. Coimmunoprecipitation assays validated the interaction of Shank3 with Nono in the mouse brain. In agreement with these data, the thalamus of Shank3a/b-knockout mice aberrantly expressed splicing isoforms of autism-associated genes, Nrxn1 and Eif4G1, before and after seizures with kainic acid treatment. These data indicate that Shank3 interacts with multiple RNA-binding proteins in the postnatal brain, thereby regulating the homeostatic expression of splicing isoforms for autism-associated genes after birth.
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Affiliation(s)
- Sayaka Okuzono
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Section of Pediatrics, Department of Medicine, Fukuoka Dental College, Fukuoka, Japan
| | - Fumihiko Fujii
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryoji Taira
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yohei Shinmyo
- Department of Medical Neuroscience, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Hiroki Kato
- Department of Molecular Cell Biology and Oral Anatomy, Graduate School of Dental Science, Kyushu University, Fukuoka, Japan
| | - Keiji Masuda
- Section of Oral Medicine for Children, Division of Oral Health, Growth and Development, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Kousuke Yonemoto
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Satoshi Akamine
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yuki Matsushita
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yoshitomo Motomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takeshi Sakurai
- Medical Innovation Center, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hiroshi Kawasaki
- Department of Medical Neuroscience, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
| | - Kihoon Han
- Department of Neuroscience, Korea University College of Medicine, Seoul, Republic of Korea
| | - Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroyuki Torisu
- Section of Pediatrics, Department of Medicine, Fukuoka Dental College, Fukuoka, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yusaku Nakabeppu
- Division of Neurofunctional Genomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Shouichi Ohga
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Yasunari Sakai
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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5
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Thibaudeau A, Schmitt K, François L, Chatrousse L, Hoffmann D, Cousin L, Weiss A, Vuidel A, Jacob CB, Sommer P, Benchoua A, Wilbertz JH. Pharmacological modulation of developmental and synaptic phenotypes in human SHANK3 deficient stem cell-derived neuronal models. Transl Psychiatry 2024; 14:249. [PMID: 38858349 PMCID: PMC11165012 DOI: 10.1038/s41398-024-02947-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 06/12/2024] Open
Abstract
Phelan-McDermid syndrome (PMDS) arises from mutations in the terminal region of chromosome 22q13, impacting the SHANK3 gene. The resulting deficiency of the postsynaptic density scaffolding protein SHANK3 is associated with autism spectrum disorder (ASD). We examined 12 different PMDS patient and CRISPR-engineered stem cell-derived neuronal models and controls and found that reduced expression of SHANK3 leads to neuronal hyperdifferentiation, increased synapse formation, and decreased neuronal activity. We performed automated imaging-based screening of 7,120 target-annotated small molecules and identified three compounds that rescued SHANK3-dependent neuronal hyperdifferentiation. One compound, Benproperine, rescued the decreased colocalization of Actin Related Protein 2/3 Complex Subunit 2 (ARPC2) with ß-actin and rescued increased synapse formation in SHANK3 deficient neurons when administered early during differentiation. Neuronal activity was only mildly affected, highlighting Benproperine's effects as a neurodevelopmental modulator. This study demonstrates that small molecular compounds that reverse developmental phenotypes can be identified in human neuronal PMDS models.
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6
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Falcão M, Monteiro P, Jacinto L. Tactile sensory processing deficits in genetic mouse models of autism spectrum disorder. J Neurochem 2024. [PMID: 38837765 DOI: 10.1111/jnc.16135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 05/04/2024] [Accepted: 05/07/2024] [Indexed: 06/07/2024]
Abstract
Altered sensory processing is a common feature in autism spectrum disorder (ASD), as recognized in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Although altered responses to tactile stimuli are observed in over 60% of individuals with ASD, the neurobiological basis of this phenomenon is poorly understood. ASD has a strong genetic component and genetic mouse models can provide valuable insights into the mechanisms underlying tactile abnormalities in ASD. This review critically addresses recent findings regarding tactile processing deficits found in mouse models of ASD, with a focus on behavioral, anatomical, and functional alterations. Particular attention was given to cellular and circuit-level functional alterations, both in the peripheral and central nervous systems, with the objective of highlighting possible convergence mechanisms across models. By elucidating the impact of mutations in ASD candidate genes on somatosensory circuits and correlating them with behavioral phenotypes, this review significantly advances our understanding of tactile deficits in ASD. Such insights not only broaden our comprehension but also pave the way for future therapeutic interventions.
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Affiliation(s)
- Margarida Falcão
- Department of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Patricia Monteiro
- Department of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
| | - Luis Jacinto
- Department of Biomedicine-Experimental Biology Unit, Faculty of Medicine of the University of Porto (FMUP), Porto, Portugal
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7
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Gao L, Ardiel E, Nurrish S, Kaplan JM. Voltage-induced calcium release in Caenorhabditis elegans body muscles. Proc Natl Acad Sci U S A 2024; 121:e2317753121. [PMID: 38687794 PMCID: PMC11087772 DOI: 10.1073/pnas.2317753121] [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: 10/12/2023] [Accepted: 04/03/2024] [Indexed: 05/02/2024] Open
Abstract
Type 1 voltage-activated calcium channels (CaV1) in the plasma membrane trigger calcium release from the sarcoplasmic reticulum (SR) by two mechanisms. In voltage-induced calcium release (VICR), CaV1 voltage sensing domains are directly coupled to ryanodine receptors (RYRs), an SR calcium channel. In calcium-induced calcium release (CICR), calcium ions flowing through activated CaV1 channels bind and activate RYR channels. VICR is thought to occur exclusively in vertebrate skeletal muscle while CICR occurs in all other muscles (including all invertebrate muscles). Here, we use calcium-activated SLO-2 potassium channels to analyze CaV1-SR coupling in Caenorhabditis elegans body muscles. SLO-2 channels were activated by both VICR and external calcium. VICR-mediated SLO-2 activation requires two SR calcium channels (RYRs and IP3 Receptors), JPH-1/Junctophilin, a PDZ (PSD95, Dlg1, ZO-1 domain) binding domain (PBD) at EGL-19/CaV1's carboxy-terminus, and SHN-1/Shank (a scaffolding protein that binds EGL-19's PBD). Thus, VICR occurs in invertebrate muscles.
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Affiliation(s)
- Luna Gao
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA02114
- Department of Neurobiology, Harvard Medical School, Boston, MA02115
| | - Evan Ardiel
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA02114
- Department of Neurobiology, Harvard Medical School, Boston, MA02115
| | - Stephen Nurrish
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA02114
- Department of Neurobiology, Harvard Medical School, Boston, MA02115
| | - Joshua M. Kaplan
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA02114
- Department of Neurobiology, Harvard Medical School, Boston, MA02115
- Program in Neuroscience, Harvard Medical School, Boston, MA02115
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8
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Mitz AR, Boccuto L, Thurm A. Evidence for common mechanisms of pathology between SHANK3 and other genes of Phelan-McDermid syndrome. Clin Genet 2024; 105:459-469. [PMID: 38414139 PMCID: PMC11025605 DOI: 10.1111/cge.14503] [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: 11/06/2023] [Revised: 01/18/2024] [Accepted: 02/02/2024] [Indexed: 02/29/2024]
Abstract
Chromosome 22q13.3 deletion (Phelan-McDermid) syndrome (PMS, OMIM 606232) is a rare genetic condition that impacts neurodevelopment. PMS most commonly results from heterozygous contiguous gene deletions that include the SHANK3 gene or likely pathogenic variants of SHANK3 (PMS-SHANK3 related). Rarely, chromosomal rearrangements that spare SHANK3 share the same general phenotype (PMS-SHANK3 unrelated). Very recent human and model system studies of genes that likely contribute to the PMS phenotype point to overlap in gene functions associated with neurodevelopment, synaptic formation, stress/inflammation and regulation of gene expression. In this review of recent findings, we describe the functional overlaps between SHANK3 and six partner genes of 22q13.3 (PLXNB2, BRD1, CELSR1, PHF21B, SULT4A1, and TCF20), which suggest a model that explains the commonality between PMS-SHANK3 related and PMS-SHANK3 unrelated classes of PMS. These genes are likely not the only contributors to neurodevelopmental impairments in the region, but they are the best documented to date. The review provides evidence for the overlapping and likely synergistic contributions of these genes to the PMS phenotype.
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Affiliation(s)
- Andrew R. Mitz
- Laboratory of Neuropsychology, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | - Luigi Boccuto
- Healthcare Genetics and Genomics Interdisciplinary Doctoral Program, School of Nursing, College of Behavioral, Social and Health Sciences, Clemson University, Clemson, SC, USA
| | - Audrey Thurm
- Neurodevelopmental and Behavioral Phenotyping Service, Office of the Clinical Director, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
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Salman M, Stayton AS, Parveen K, Parveen A, Puchowicz MA, Parvez S, Bajwa A, Ishrat T. Intranasal Delivery of Mitochondria Attenuates Brain Injury by AMPK and SIRT1/PGC-1α Pathways in a Murine Model of Photothrombotic Stroke. Mol Neurobiol 2024; 61:2822-2838. [PMID: 37946007 DOI: 10.1007/s12035-023-03739-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023]
Abstract
Ischemic stroke is one of the major causes of morbidity and mortality worldwide. Mitochondria play a vital role in the pathological processes of cerebral ischemic injury, but its transplantation and underlying mechanisms remain unclear. In the present study, we examined the effects of mitochondrial therapy on the modulation of AMPK and SIRT1/PGC-1α signaling pathway, oxidative stress, and NLRP3 inflammasome activation after photothrombotic ischemic stroke (pt-MCAO). The adult male mice were subjected to the pt-MCAO in which the proximal-middle cerebral artery was exposed with a 532-nm laser beam for 4 min by retro-orbital injection of a photosensitive dye (Rose Bengal: 15 mg/kg) before the laser light exposure and isolated mitochondria (100 μg protein) were administered intranasally at 30 min, 24 h, and 48 h following post-stroke. After 72 h, mice were tested for neurobehavioral outcomes and euthanized for infarct volume, brain edema, and molecular analysis. First, we found that mitochondria therapy significantly decreased brain infarct volume and brain edema, improved neurological dysfunction, attenuated ischemic stroke-induced oxidative stress, and neuroinflammation. Second, mitochondria treatment inhibited NLRP3 inflammasome activation. Finally, mitochondria therapy accelerated p-AMPKα(Thr172) and PGC-1α expression and resorted SIRT1 protein expression levels in pt-MCAO mice. In conclusion, our results demonstrate that mitochondria therapy exerts neuroprotective effects by inhibiting oxidative damage and inflammation, mainly dependent on the heightening activation of the AMPK and SIRT1/PGC-1α signaling pathway. Thus, intranasal delivery of mitochondria might be considered a new therapeutic strategy for ischemic stroke treatment.
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Affiliation(s)
- Mohd Salman
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-231, Memphis, TN, 38163, USA.
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-228, Memphis, TN, 38163, USA.
| | - Amanda S Stayton
- Transplant Research Institute, College of Medicine, The University of Tennessee Health Science Center, 71 S Manassas St, Room 418H, Memphis, TN, 38103, USA
| | - Kehkashan Parveen
- Department of Pediatrics, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Arshi Parveen
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-231, Memphis, TN, 38163, USA
| | - Michelle A Puchowicz
- Department of Pediatrics, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Suhel Parvez
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Amandeep Bajwa
- Transplant Research Institute, College of Medicine, The University of Tennessee Health Science Center, 71 S Manassas St, Room 418H, Memphis, TN, 38103, USA.
- Department of Genetics, Genomics, and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA.
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA.
| | - Tauheed Ishrat
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-231, Memphis, TN, 38163, USA.
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA.
- Neuroscience Institute, The University of Tennessee Health Science Center, Memphis, TN, USA.
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10
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Ioannidis V, Pandey R, Bauer HF, Schön M, Bockmann J, Boeckers TM, Lutz AK. Disrupted extracellular matrix and cell cycle genes in autism-associated Shank3 deficiency are targeted by lithium. Mol Psychiatry 2024; 29:704-717. [PMID: 38123724 PMCID: PMC11153165 DOI: 10.1038/s41380-023-02362-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 11/20/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Abstract
The Shank3 gene encodes the major postsynaptic scaffolding protein SHANK3. Its mutation causes a syndromic form of autism spectrum disorder (ASD): Phelan-McDermid Syndrome (PMDS). It is characterized by global developmental delay, intellectual disorders (ID), ASD behavior, affective symptoms, as well as extra-cerebral symptoms. Although Shank3 deficiency causes a variety of molecular alterations, they do not suffice to explain all clinical aspects of this heterogenic syndrome. Since global gene expression alterations in Shank3 deficiency remain inadequately studied, we explored the transcriptome in vitro in primary hippocampal cells from Shank3∆11(-/-) mice, under control and lithium (Li) treatment conditions, and confirmed the findings in vivo. The Shank3∆11(-/-) genotype affected the overall transcriptome. Remarkably, extracellular matrix (ECM) and cell cycle transcriptional programs were disrupted. Accordingly, in the hippocampi of adolescent Shank3∆11(-/-) mice we found proteins of the collagen family and core cell cycle proteins downregulated. In vitro Li treatment of Shank3∆11(-/-) cells had a rescue-like effect on the ECM and cell cycle gene sets. Reversed ECM gene sets were part of a network, regulated by common transcription factors (TF) such as cAMP responsive element binding protein 1 (CREB1) and β-Catenin (CTNNB1), which are known downstream effectors of synaptic activity and targets of Li. These TFs were less abundant and/or hypo-phosphorylated in hippocampi of Shank3∆11(-/-) mice and could be rescued with Li in vitro and in vivo. Our investigations suggest the ECM compartment and cell cycle genes as new players in the pathophysiology of Shank3 deficiency, and imply involvement of transcriptional regulators, which can be modulated by Li. This work supports Li as potential drug in the management of PMDS symptoms, where a Phase III study is ongoing.
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Affiliation(s)
- Valentin Ioannidis
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany
| | - Rakshita Pandey
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, Ulm University, Ulm, Germany
| | - Helen Friedericke Bauer
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany
- International Graduate School in Molecular Medicine Ulm, Ulm University, Ulm, Germany
| | - Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany
| | - Jürgen Bockmann
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany
| | - Tobias M Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany
- German Center for Neurodegenerative Diseases (DZNE), Ulm site, 89081, Ulm, Germany
| | - Anne-Kathrin Lutz
- Institute for Anatomy and Cell Biology, Ulm University, 89081, Ulm, Germany.
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11
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Maddhesiya J, Mohapatra B. Understanding the Genetic and Non-Genetic Interconnections in the Aetiology of Syndromic Congenital Heart Disease: An Updated Review: Part 2. Curr Cardiol Rep 2024; 26:167-178. [PMID: 38358608 DOI: 10.1007/s11886-024-02020-x] [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] [Accepted: 01/08/2024] [Indexed: 02/16/2024]
Abstract
PURPOSE OF REVIEW Approximately 30% of syndromic cases diagnosed with CHD, which lure us to further investigate the molecular and clinical challenges behind syndromic CHD (sCHD). The aetiology of sCHD in a majority of cases remains enigmatic due to involvement of multiple factors, namely genetic, epigenetic and environmental modifiable risk factors for the development of the disease. Here, we aim to update the role of genetic contributors including chromosomal abnormalities, copy number variations (CNVs) and single gene mutations in cardiac specific genes, maternal lifestyle conditions, environmental exposures and epigenetic modifiers in causing CHD in different genetic syndromes. RECENT FINDINGS The exact aetiology of sCHD is still unknown. With the advancement of next-generation technologies including WGS, WES, transcriptome, proteome and methylome study, numerous novel genes and pathways have been identified. Moreover, our recent knowledge regarding epigenetic and environmental regulation during cardiogenesis is still evolving and may solve some of the mystery behind complex sCHD. Here, we focus to understand how the complex combination of genetic, environmental and epigenetic factors interact to interfere with developmental pathways, culminating into cardiac and extracardiac defects in sCHD.
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Affiliation(s)
- Jyoti Maddhesiya
- Cytogenetics Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India
| | - Bhagyalaxmi Mohapatra
- Cytogenetics Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi, 221005, Uttar Pradesh, India.
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12
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Hung LY, Margolis KG. Autism spectrum disorders and the gastrointestinal tract: insights into mechanisms and clinical relevance. Nat Rev Gastroenterol Hepatol 2024; 21:142-163. [PMID: 38114585 DOI: 10.1038/s41575-023-00857-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2023] [Indexed: 12/21/2023]
Abstract
Autism spectrum disorders (ASDs) are recognized as central neurodevelopmental disorders diagnosed by impairments in social interactions, communication and repetitive behaviours. The recognition of ASD as a central nervous system (CNS)-mediated neurobehavioural disorder has led most of the research in ASD to be focused on the CNS. However, gastrointestinal function is also likely to be affected owing to the neural mechanistic nature of ASD and the nervous system in the gastrointestinal tract (enteric nervous system). Thus, it is unsurprising that gastrointestinal disorders, particularly constipation, diarrhoea and abdominal pain, are highly comorbid in individuals with ASD. Gastrointestinal problems have also been repeatedly associated with increased severity of the core symptoms diagnostic of ASD and other centrally mediated comorbid conditions, including psychiatric issues, irritability, rigid-compulsive behaviours and aggression. Despite the high prevalence of gastrointestinal dysfunction in ASD and its associated behavioural comorbidities, the specific links between these two conditions have not been clearly delineated, and current data linking ASD to gastrointestinal dysfunction have not been extensively reviewed. This Review outlines the established and emerging clinical and preclinical evidence that emphasizes the gut as a novel mechanistic and potential therapeutic target for individuals with ASD.
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Affiliation(s)
- Lin Y Hung
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, USA
| | - Kara Gross Margolis
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, USA.
- Department of Cell Biology, NYU Grossman School of Medicine and Langone Medical Center, New York, NY, USA.
- Department of Pediatrics, NYU Grossman School of Medicine and Langone Medical Center, New York, NY, USA.
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13
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Granocchio E, Pollina E, De Salvatore M, Scopelliti MR, Tanzi G, Sciacca FL, D'Arrigo S, Ciaccio C. 22q13.33 duplication involving SHANK3 gene: a boy and his mother with "persistent" language and speech sound disorder. Psychiatr Genet 2024; 34:19-23. [PMID: 38084626 DOI: 10.1097/ypg.0000000000000355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Patients carrying 22q13.33 duplication present variable neurodevelopmental phenotype. Among these, patients with genetic alteration disrupting SHANK3 gene are very rare and they also present neurodevelopmental disorder such as autism spectrum disorder and intellectual disability. The real incidence is unknown because mild and variable phenotype could cause reduction in diagnosed cases. We describe the first case of 22q13.33 microduplication disrupting SHANK3 gene, inherited from mother to son, that presents a "persistent" language and speech sound disorder as main symptom without intellectual disability and autism spectrum disorder. More clinical reports with accurate phenotype description are needed to better define the profile of carriers of this genetic alteration.
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Affiliation(s)
- Elisa Granocchio
- Department of Pediatric Neuroscience, Foundation I.R.C.C.S. Istituto Neurologico Carlo Besta
| | | | - Marinella De Salvatore
- Department of Pediatric Neuroscience, Foundation I.R.C.C.S. Istituto Neurologico Carlo Besta
| | - Maria R Scopelliti
- Department of Pediatric Neuroscience, Foundation I.R.C.C.S. Istituto Neurologico Carlo Besta
| | | | - Francesca L Sciacca
- Laboratory of Cytogenetic, Department of Diagnostic and Technology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Milan, Italy
| | - Stefano D'Arrigo
- Department of Pediatric Neuroscience, Foundation I.R.C.C.S. Istituto Neurologico Carlo Besta
| | - Claudia Ciaccio
- Department of Pediatric Neuroscience, Foundation I.R.C.C.S. Istituto Neurologico Carlo Besta
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14
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Boley G, Pierri J, Finegold D, Pan L. Evaluation of catatonia in autism and severe depression revealing Phelan-McDermid syndrome and tetrahydrobiopterin deficiency. BMJ Case Rep 2024; 17:e256155. [PMID: 38176751 PMCID: PMC10773351 DOI: 10.1136/bcr-2023-256155] [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] [Indexed: 01/06/2024] Open
Abstract
The authors describe a female in her late twenties, presenting with catatonia and diagnosed with epilepsy, autism spectrum disorder, mild intellectual disability, psychosis, dysthymia, anxiety and bipolar disorder, receiving weekly electroconvulsive therapy (ECT). After testing, findings indicated an interstitial deletion in the 22q13.33 region associated with Phelan-McDermid syndrome. In addition, the patient had low cerebral spinal fluid tetrahydrobiopterin (BH4) levels, suggesting dysfunction in the pterin biosynthetic pathway. As a result, the patient started on sapropterin, a BH4 replacement small molecule. After sapropterin treatment, catatonia improved, and the need for ECT decreased. There was an improvement in her cognitive ability, attention and independence. However, there has been no improvement in seizure frequency.
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Affiliation(s)
- Georgia Boley
- Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Joseph Pierri
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - David Finegold
- Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
| | - Lisa Pan
- Human Genetics, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania, USA
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15
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Frank Y, Levy T, Lozano R, Friedman K, Underwood S, Kostic A, Walker H, Kolevzon A. Gait Abnormalities in Children with Phelan-McDermid Syndrome. J Child Neurol 2023; 38:665-671. [PMID: 37849292 DOI: 10.1177/08830738231204395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Background: Phelan-McDermid syndrome is a genetic disorder caused by haploinsufficiency of the SHANK3 gene on chromosome 22q13.3 and is characterized by autism spectrum disorder, intellectual disability, speech and language abnormalities, hypotonia, and mild dysmorphic features. Early literature in Phelan-McDermid syndrome did not include gait abnormalities as part of the syndrome although recent prospective studies report that the prevalence of gait abnormalities ranges from 55% to 94%. We compared gait abnormalities in individuals with Phelan-McDermid syndrome, idiopathic autism spectrum disorder, and typically developing controls, and explored associations between gait abnormalities, autism spectrum disorder, and intellectual functioning. Method: The study cohort consists of 67 participants between the ages of 3 and 18 years, divided into 3 groups: Phelan-McDermid syndrome (n = 46), idiopathic autism spectrum disorder (n = 11), and typically developing controls (n = 10). Gait was recorded using a video camera and scored across 26 gait features using a "Gait Clinical Observations scale" designed specifically for this study. Results: Gait abnormalities were significantly higher in the Phelan-McDermid syndrome group as compared to idiopathic autism spectrum disorder or typically developing controls. The number of gait abnormalities across groups was also significantly correlated with Intellectual Quotient/Developmental Quotient (IQ/DQ). In analysis of covariance including IQ/DQ, the effect of group was not significant, but the effect of IQ/DQ was significant. Conclusions: Overall differences in gait abnormalities were determined by the degree of intellectual disability, which was significantly higher in Phelan-McDermid syndrome.
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Affiliation(s)
- Yitzchak Frank
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Tess Levy
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Reymundo Lozano
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Kate Friedman
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Slayton Underwood
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ana Kostic
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hannah Walker
- Health and Behavior Sciences at Teachers College, Columbia University, New York, NY, USA
| | - Alexander Kolevzon
- Department of Psychiatry, Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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16
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Garofalo M, Vansenne F, Sival DA, Verbeek DS. Pathogenetic Insights into Developmental Coordination Disorder Reveal Substantial Overlap with Movement Disorders. Brain Sci 2023; 13:1625. [PMID: 38137073 PMCID: PMC10741651 DOI: 10.3390/brainsci13121625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/09/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Developmental Coordination Disorder (DCD) is a neurodevelopmental condition characterized by non-progressive central motor impairments. Mild movement disorder features have been observed in DCD. Until now, the etiology of DCD has been unclear. Recent studies suggested a genetic substrate in some patients with DCD, but comprehensive knowledge about associated genes and underlying pathogenetic mechanisms is still lacking. In this study, we first identified genes described in the literature in patients with a diagnosis of DCD according to the official diagnostic criteria. Second, we exposed the underlying pathogenetic mechanisms of DCD, by investigating tissue- and temporal gene expression patterns and brain-specific biological mechanisms. Third, we explored putative shared pathogenetic mechanisms between DCD and frequent movement disorders with a known genetic component, including ataxia, chorea, dystonia, and myoclonus. We identified 12 genes associated with DCD in the literature, which are ubiquitously expressed in the central nervous system throughout brain development. These genes are involved in cellular processes, neural signaling, and nervous system development. There was a remarkable overlap (62%) in pathogenetic mechanisms between DCD-associated genes and genes linked with movement disorders. Our findings suggest that some patients might have a genetic etiology of DCD, which could be considered part of a pathogenetic movement disorder spectrum.
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Affiliation(s)
- Martinica Garofalo
- Department of Pediatric Neurology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.G.); (D.A.S.)
- Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands;
| | - Fleur Vansenne
- Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands;
- Department of Genetics, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
| | - Deborah A. Sival
- Department of Pediatric Neurology, Beatrix Children’s Hospital, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands; (M.G.); (D.A.S.)
- Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands;
| | - Dineke S. Verbeek
- Expertise Center Movement Disorders Groningen, University Medical Center Groningen (UMCG), 9713 GZ Groningen, The Netherlands;
- Department of Genetics, University Medical Center Groningen, University of Groningen, 9713 GZ Groningen, The Netherlands
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17
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Lopez-Rodriguez AB, Murray CL, Kealy J, Towns C, Roche A, Nazmi A, Doran M, Lowry JP, Cunningham C. Hyperthermia elevates brain temperature and improves behavioural signs in animal models of autism spectrum disorder. Mol Autism 2023; 14:43. [PMID: 37968722 PMCID: PMC10652497 DOI: 10.1186/s13229-023-00569-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 09/25/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Autism spectrum disorders (ASD) are predominantly neurodevelopmental and largely genetically determined. However, there are human data supporting the idea that fever can improve symptoms in some individuals, but those data are limited and there are almost no data to support this from animal models. We aimed to test the hypothesis that elevated body temperature would improve function in two animal models of ASD. METHODS We used a 4 h whole-body hyperthermia (WBH) protocol and, separately, systemic inflammation induced by bacterial endotoxin (LPS) at 250 µg/kg, to dissociate temperature and inflammatory elements of fever in two ASD animal models: C58/J and Shank3B- mice. We used one- or two-way ANOVA and t-tests with normally distributed data and Kruskal-Wallis or Mann-Whitney with nonparametric data. Post hoc comparisons were made with a level of significance set at p < 0.05. For correlation analyses, data were adjusted by a linear regression model. RESULTS Only LPS induced inflammatory signatures in the brain while only WBH produced fever-range hyperthermia. WBH reduced repetitive behaviours and improved social interaction in C58/J mice and significantly reduced compulsive grooming in Shank3B- mice. LPS significantly suppressed most activities over 5-48 h. LIMITATIONS We show behavioural, cellular and molecular changes, but provide no specific mechanistic explanation for the observed behavioural improvements. CONCLUSIONS The data are the first, to our knowledge, to demonstrate that elevated body temperature can improve behavioural signs in 2 distinct ASD models. Given the developmental nature of ASD, evidence that symptoms may be improved by environmental perturbations indicates possibilities for improving function in these individuals. Since experimental hyperthermia in patients would carry significant risks, it is now essential to pursue molecular mechanisms through which hyperthermia might bring about the observed benefits.
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Affiliation(s)
- Ana Belen Lopez-Rodriguez
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland
| | - Carol L Murray
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland
| | - John Kealy
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland
| | - Clodagh Towns
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland
| | - Andrew Roche
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland
| | - Arshed Nazmi
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland
| | - Michelle Doran
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Republic of Ireland
| | - John P Lowry
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Republic of Ireland
| | - Colm Cunningham
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute and Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Republic of Ireland.
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18
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Woelfle S, Pedro MT, Wagner J, Schön M, Boeckers TM. Expression profiles of the autism-related SHANK proteins in the human brain. BMC Biol 2023; 21:254. [PMID: 37953224 PMCID: PMC10641957 DOI: 10.1186/s12915-023-01712-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 09/25/2023] [Indexed: 11/14/2023] Open
Abstract
BACKGROUND SHANKs are major scaffolding proteins at postsynaptic densities (PSDs) in the central nervous system. Mutations in all three family members have been associated with neurodevelopmental disorders such as autism spectrum disorders (ASDs). Despite the pathophysiological importance of SHANK2 and SHANK3 mutations in humans, research on the expression of these proteins is mostly based on rodent model organisms. RESULTS In the present study, cellular and neuropil SHANK2 expression was analyzed by immunofluorescence (IF) staining of post mortem human brain tissue from four male individuals (19 brain regions). Mouse brains were analyzed in comparison to evaluate the degree of phylogenetic conservation. Furthermore, SHANK2 and SHANK3 isoform patterns were compared in human and mouse brain lysates. While isoform expression and subcellular distribution were largely conserved, differences in neuropil levels of SHANK2 were found by IF staining: Maximum expression was concordantly measured in the cerebellum; however, higher SHANK2 expression was detected in the human brainstem and thalamus when compared to mice. One of the lowest SHANK2 levels was found in the human amygdala, a moderately expressing region in mouse. Quantification of SHANK3 IF in mouse brains unveiled a distribution comparable to humans. CONCLUSIONS In summary, these data show that the overall expression pattern of SHANK is largely conserved in defined brain regions; however, differences do exist, which need to be considered in the translation of rodent studies. The summarized expression patterns of SHANK2 and SHANK3 should serve as a reference for future studies.
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Affiliation(s)
- Sarah Woelfle
- Institute for Anatomy and Cell Biology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Maria T Pedro
- Department of Neurosurgery, Ulm University, Campus Günzburg, Lindenallee 2, 89312, Günzburg, Germany
| | - Jan Wagner
- Department of Neurology, Ulm University and Universitäts- and Rehabilitationskliniken Ulm, 89081, Ulm, Germany
| | - Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
| | - Tobias M Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
- Deutsches Zentrum Für Neurodegenerative Erkrankungen, DZNE, Ulm Site, 89081, Ulm, Germany.
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19
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Abdel-Haq M, Ojha SK, Hamoudi W, Kumar A, Tripathi MK, Khaliulin I, Domb AJ, Amal H. Effects of extended-release 7-nitroindazole gel formulation treatment on the behavior of Shank3 mouse model of autism. Nitric Oxide 2023; 140-141:41-49. [PMID: 37714296 DOI: 10.1016/j.niox.2023.09.003] [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: 08/20/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/17/2023]
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by behavioral deficits such as abnormalities in communication, social interaction, anxiety, and repetitive behavior. We have recently shown that the Shank3 mutation in mice representing a model of ASD causes excessive nitric oxide (NO) levels and aberrant protein S-nitrosylation. Further, 10-day daily injections of 7-NI, a neuronal nitric oxide synthase inhibitor, into Shank3Δ4-22 and Cntnap2(-/-) mutant mice (models of ASD) at a dose of 80 mg/kg reversed the manifestations of ASD phenotype. In this study, we proposed an extended release of 7-NI using a novel drug system. Importantly, unlike the intraperitoneal injections, our new preparation of poly (sebacic acid-co-ricinoleic acid) (PSARA) gel containing 7-NI was injected subcutaneously into the mutant mice only once. The animals underwent behavioral testing starting from day 3 post-injection. It should be noted that the developed PSARA gel formulation allowed a slow release of 7-NI maintaining the plasma level of the drug at ∼45 μg/ml/day. Further, we observed improved memory and social interaction and reduced anxiety-like behavior in Shank3 mutant mice. This was accompanied by a reduction in 3-nitrotyrosine levels (an indicator of nitrative/nitrosative stress) in plasma. Overall, we suggest that our single-dose formulation of PSARA gel is very efficient in rendering a therapeutic effect of 7-NI for at least 10 days. This approach may provide in the future a rational design of an effective ASD treatment using 7-NI and its clinical translation.
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Affiliation(s)
- Muhammad Abdel-Haq
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Shashank Kumar Ojha
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Wajeha Hamoudi
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Awanish Kumar
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Manish Kumar Tripathi
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Igor Khaliulin
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel
| | - Abraham J Domb
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel.
| | - Haitham Amal
- Institute for Drug Research, School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, 91120, Israel.
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20
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Ciancone-Chama AG, Bonaldo V, Biasini E, Bozzi Y, Balasco L. Gene Expression Profiling in Trigeminal Ganglia from Cntnap2 -/- and Shank3b -/- Mouse Models of Autism Spectrum Disorder. Neuroscience 2023; 531:75-85. [PMID: 37699442 DOI: 10.1016/j.neuroscience.2023.08.028] [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: 01/19/2023] [Revised: 08/19/2023] [Accepted: 08/22/2023] [Indexed: 09/14/2023]
Abstract
Sensory difficulties represent a crucial issue in the life of autistic individuals. The diagnostic and statistical manual of mental disorders describes both hyper- and hypo-responsiveness to sensory stimulation as a criterion for the diagnosis autism spectrum disorders (ASD). Among the sensory domain affected in ASD, altered responses to tactile stimulation represent the most commonly reported sensory deficits. Although tactile abnormalities have been reported in monogenic cohorts of patients and genetic mouse models of ASD, the underlying mechanisms are still unknown. Traditionally, autism research has focused on the central nervous system as the target to infer the neurobiological bases of such tactile abnormalities. Nonetheless, the peripheral nervous system represents the initial site of processing of sensory information and a potential site of dysfunction in the sensory cascade. Here we investigated the gene expression deregulation in the trigeminal ganglion (which directly receives tactile information from whiskers) in two genetic models of syndromic autism (Shank3b and Cntnap2 mutant mice) at both adult and juvenile ages. We found several neuronal and non-neuronal markers involved in inhibitory, excitatory, neuroinflammatory and sensory neurotransmission to be differentially regulated within the trigeminal ganglia of both adult and juvenile Shank3b and Cntnap2 mutant mice. These results may help in disentangling the multifaced complexity of sensory abnormalities in autism and open avenues for the development of peripherally targeted treatments for tactile sensory deficits exhibited in ASD.
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Affiliation(s)
- Alessandra G Ciancone-Chama
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Piazza della Manifattura 1, 38068 Rovereto, TN, Italy
| | - Valerio Bonaldo
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Via Sommarive 9, 38123 Povo, TN, Italy
| | - Emiliano Biasini
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Via Sommarive 9, 38123 Povo, TN, Italy
| | - Yuri Bozzi
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Piazza della Manifattura 1, 38068 Rovereto, TN, Italy; CNR Neuroscience Institute, via Moruzzi 1, 56124 Pisa, Italy.
| | - Luigi Balasco
- Center for Mind/Brain Sciences - CIMeC, University of Trento, Piazza della Manifattura 1, 38068 Rovereto, TN, Italy.
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Shah S, Sarasua SM, Boccuto L, Dean BC, Wang L. Brain Gene Co-Expression Network Analysis Identifies 22q13 Region Genes Associated with Autism, Intellectual Disability, Seizures, Language Impairment, and Hypotonia. Genes (Basel) 2023; 14:1998. [PMID: 38002941 PMCID: PMC10671420 DOI: 10.3390/genes14111998] [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: 09/29/2023] [Revised: 10/22/2023] [Accepted: 10/24/2023] [Indexed: 11/26/2023] Open
Abstract
Phelan-McDermid syndrome (PMS) is a rare genetic neurodevelopmental disorder caused by 22q13 region deletions or SHANK3 gene variants. Deletions vary in size and can affect other genes in addition to SHANK3. PMS is characterized by autism spectrum disorder (ASD), intellectual disability (ID), developmental delays, seizures, speech delay, hypotonia, and minor dysmorphic features. It is challenging to determine individual gene contributions due to variability in deletion sizes and clinical features. We implemented a genomic data mining approach for identifying and prioritizing the candidate genes in the 22q13 region for five phenotypes: ASD, ID, seizures, language impairment, and hypotonia. Weighted gene co-expression networks were constructed using the BrainSpan transcriptome dataset of a human brain. Bioinformatic analyses of the co-expression modules allowed us to select specific candidate genes, including EP300, TCF20, RBX1, XPNPEP3, PMM1, SCO2, BRD1, and SHANK3, for the common neurological phenotypes of PMS. The findings help understand the disease mechanisms and may provide novel therapeutic targets for the precise treatment of PMS.
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Affiliation(s)
- Snehal Shah
- Healthcare Genetics and Genomics, School of Nursing, Clemson University, Clemson, SC 29634, USA; (S.S.); (L.B.)
- Department of Genetics and Biochemistry, Clemson University, Clemson, SC 29634, USA
| | - Sara M. Sarasua
- Healthcare Genetics and Genomics, School of Nursing, Clemson University, Clemson, SC 29634, USA; (S.S.); (L.B.)
| | - Luigi Boccuto
- Healthcare Genetics and Genomics, School of Nursing, Clemson University, Clemson, SC 29634, USA; (S.S.); (L.B.)
| | - Brian C. Dean
- School of Computing, Clemson University, Clemson, SC 29634, USA
| | - Liangjiang Wang
- Department of Genetics and Biochemistry, Clemson University, Clemson, SC 29634, USA
- Center for Human Genetics, Clemson University, Greenwood, SC 29646, USA
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22
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Wu L, Mei S, Yu S, Han S, Zhang YQ. Shank3 mutations enhance early neural responses to deviant tones in dogs. Cereb Cortex 2023; 33:10546-10557. [PMID: 37585733 DOI: 10.1093/cercor/bhad302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/18/2023] Open
Abstract
Both enhanced discrimination of low-level features of auditory stimuli and mutations of SHANK3 (a gene that encodes a synaptic scaffolding protein) have been identified in autism spectrum disorder patients. However, experimental evidence regarding whether SHANK3 mutations lead to enhanced neural processing of low-level features of auditory stimuli is lacking. The present study investigated this possibility by examining effects of Shank3 mutations on early neural processing of pitch (tone frequency) in dogs. We recorded electrocorticograms from wild-type and Shank3 mutant dogs using an oddball paradigm in which deviant tones of different frequencies or probabilities were presented along with other tones in a repetitive stream (standards). We found that, relative to wild-type dogs, Shank3 mutant dogs exhibited larger amplitudes of early neural responses to deviant tones and greater sensitivity to variations of deviant frequencies within 100 ms after tone onsets. In addition, the enhanced early neural responses to deviant tones in Shank3 mutant dogs were observed independently of the probability of deviant tones. Our findings highlight an essential functional role of Shank3 in modulations of early neural detection of novel sounds and offer new insights into the genetic basis of the atypical auditory information processing in autism patients.
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Affiliation(s)
- Liang Wu
- State Key Laboratory for Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shuting Mei
- School of Psychological and Cognitive Sciences, PKU-IDG/McGovern Institute for Brain Research, Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing 100871, China
| | - Shan Yu
- Brainnetome Center and State Key Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China
| | - Shihui Han
- School of Psychological and Cognitive Sciences, PKU-IDG/McGovern Institute for Brain Research, Beijing Key Laboratory of Behavior and Mental Health, Peking University, Beijing 100871, China
| | - Yong Q Zhang
- State Key Laboratory for Molecular and Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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23
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Réthelyi JM, Vincze K, Schall D, Glennon J, Berkel S. The role of insulin/IGF1 signalling in neurodevelopmental and neuropsychiatric disorders - Evidence from human neuronal cell models. Neurosci Biobehav Rev 2023; 153:105330. [PMID: 37516219 DOI: 10.1016/j.neubiorev.2023.105330] [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: 09/30/2022] [Revised: 07/15/2023] [Accepted: 07/26/2023] [Indexed: 07/31/2023]
Abstract
Insulin and insulin-like growth factor 1 (IGF1) signalling play a central role in the development and maintenance of neurons in the brain, and human neurodevelopmental as well as neuropsychiatric disorders have been linked to impaired insulin and IGF1 signalling. This review focuses on the impairments of the insulin and IGF1 signalling cascade in the context of neurodevelopmental and neuropsychiatric disorders, based on evidence from human neuronal cell models. Clear evidence was obtained for impaired insulin and IGF1 receptor downstream signalling in neurodevelopmental disorders, while the evidence for its role in neuropsychiatric disorders was less substantial. Human neuronal model systems can greatly add to our knowledge about insulin/IGF1 signalling in the brain, its role in restoring dendritic maturity, and complement results from clinical studies and animal models. Moreover, they represent a useful model for the development of new therapeutic strategies. Further research is needed to systematically investigate the exact role of the insulin/IGF1 signalling cascades in neurodevelopmental and neuropsychiatric disorders, and to elucidate the respective therapeutic implications.
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Affiliation(s)
- János M Réthelyi
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary
| | - Katalin Vincze
- Department of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary; Doctoral School of Mental Health Sciences, Semmelweis University, Budapest, Hungary
| | - Dorothea Schall
- Institute of Human Genetics, Heidelberg University, Heidelberg, Germany
| | - Jeffrey Glennon
- Conway Institute of Biomedical and Biomolecular Research, School of Medicine, University College Dublin, Dublin, Ireland
| | - Simone Berkel
- Institute of Human Genetics, Heidelberg University, Heidelberg, Germany; Interdisciplinary Centre of Neurosciences (IZN), Heidelberg University, Germany.
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24
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Kozol RA, Dallman JE. Drugs prescribed for Phelan-McDermid syndrome differentially impact sensory behaviors in shank3 zebrafish models. F1000Res 2023; 12:84. [PMID: 37868296 PMCID: PMC10589628 DOI: 10.12688/f1000research.127830.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/07/2023] [Indexed: 10/24/2023] Open
Abstract
Background: Altered sensory processing is a pervasive symptom in individuals with Autism Spectrum Disorders (ASD); people with Phelan McDermid syndrome (PMS), in particular, show reduced responses to sensory stimuli. PMS is caused by deletions of the terminal end of chromosome 22 or point mutations in Shank3. People with PMS can present with an array of symptoms including ASD, epilepsy, gastrointestinal distress, and reduced responses to sensory stimuli. People with PMS are often medicated to manage behaviors like aggression and/or self-harm and/or epilepsy, and it remains unclear how these medications might impact perception/sensory processing. Here we test this using zebrafish mutant shank3ab PMS models that likewise show reduced sensory responses in a visual motor response (VMR) assay, in which increased locomotion is triggered by light to dark transitions. Methods: We screened three medications, risperidone, lithium chloride (LiCl), and carbamazepine (CBZ), prescribed to people with PMS and one drug, 2-methyl-6-(phenylethynyl) pyridine (MPEP) tested in rodent models of PMS, for their effects on a sensory-induced behavior in two zebrafish PMS models with frameshift mutations in either the N- or C- termini. To test how pharmacological treatments affect the VMR, we exposed larvae to selected drugs for 24 hours and then quantified their locomotion during four ten-minute cycles of lights on-to-off stimuli. Results: We found that risperidone normalized the VMR in shank3 models. LiCl and CBZ had no effect on the VMR in any of the three genotypes. MPEP reduced the VMR in wildtype (WT) to levels seen in shank3 models but caused no changes in either shank3 model. Finally, shank3 mutants showed resistance to the seizure-inducing drug pentylenetetrazol (PTZ), at a dosage that results in hyperactive swimming in WT zebrafish. Conclusions: Our work shows that the effects of drugs on sensory processing are varied in ways that can be highly genotype- and drug-dependent.
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Affiliation(s)
- Robert A. Kozol
- Charles E. Schmidt College of Science, Florida Atlantic University, Jupiter, Fl., USA
| | - Julia E. Dallman
- Department of Biology, University of Miami, Coral Gables, FL, 33146, USA
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25
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Yildiz B, Schiedt L, Mulaw M, Bockmann J, Jesse S, Lutz AK, Boeckers TM. Shank3 related muscular hypotonia is accompanied by increased intracellular calcium concentrations and ion channel dysregulation in striated muscle tissue. Front Cell Dev Biol 2023; 11:1243299. [PMID: 37745298 PMCID: PMC10511643 DOI: 10.3389/fcell.2023.1243299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/17/2023] [Indexed: 09/26/2023] Open
Abstract
Phelan-McDermid syndrome (PMS) is a syndromic form of Autism Spectrum Disorders (ASD) classified as a rare genetic neurodevelopmental disorder featuring global developmental delay, absent or delayed speech, ASD-like behaviour and neonatal skeletal muscle hypotonia. PMS is caused by a heterozygous deletion of the distal end of chromosome 22q13.3 or SHANK3 mutations. We analyzed striated muscles of newborn Shank3Δ11(-/-) animals and found a significant enlargement of the sarcoplasmic reticulum as previously seen in adult Shank3Δ11(-/-) mice, indicative of a Shank3-dependent and not compensatory mechanism for this structural alteration. We analyzed transcriptional differences by RNA-sequencing of muscle tissue of neonatal Shank3Δ11(-/-) mice and compared those to Shank3(+/+) controls. We found significant differences in gene expression of ion channels crucial for muscle contraction and for molecules involved in calcium ion regulation. In addition, calcium storage- [i.e., Calsequestrin (CSQ)], calcium secretion- and calcium-related signaling-proteins were found to be affected. By immunostainings and Western blot analyses we could confirm these findings both in Shank3Δ11(-/-) mice and PMS patient muscle tissue. Moreover, alterations could be induced in vitro by the selective downregulation of Shank3 in C2C12 myotubes. Our results emphasize that SHANK3 levels directly or indirectly regulate calcium homeostasis in a cell autonomous manner that might contribute to muscular hypotonia especially seen in the newborn.
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Affiliation(s)
- Berra Yildiz
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
- International Graduate School in Molecular Medicine, IGradU, Ulm, Germany
| | - Lisa Schiedt
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
- International Graduate School in Molecular Medicine, IGradU, Ulm, Germany
| | - Medhanie Mulaw
- Unit for Single-cell Genomics, Medical Faculty, Ulm University, Ulm, Germany
| | - Jürgen Bockmann
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Sarah Jesse
- Neurologie, Universitätsklinikum Ulm, Ulm, Germany
| | - Anne-Kathrin Lutz
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Tobias M. Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen, Ulm Site, Ulm, Germany
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26
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Rabeling A, Goolam M. Cerebral organoids as an in vitro model to study autism spectrum disorders. Gene Ther 2023; 30:659-669. [PMID: 35790793 DOI: 10.1038/s41434-022-00356-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 06/01/2022] [Accepted: 06/23/2022] [Indexed: 11/09/2022]
Abstract
Autism spectrum disorders (ASDs) are a set of disorders characterised by social and communication deficits caused by numerous genetic lesions affecting brain development. Progress in ASD research has been hampered by the lack of appropriate models, as both 2D cell culture as well as animal models cannot fully recapitulate the developing human brain or the pathogenesis of ASD. Recently, cerebral organoids have been developed to provide a more accurate, 3D in vitro model of human brain development. Cerebral organoids have been shown to recapitulate the foetal brain gene expression profile, transcriptome, epigenome, as well as disease dynamics of both idiopathic and syndromic ASDs. They are thus an excellent tool to investigate development of foetal stage ASDs, as well as interventions that can reverse or rescue the altered phenotypes observed. In this review, we discuss the development of cerebral organoids, their recent applications in the study of both syndromic and idiopathic ASDs, their use as an ASD drug development platform, as well as limitations of their use in ASD research.
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Affiliation(s)
- Alexa Rabeling
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, 7925, South Africa
| | - Mubeen Goolam
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, 7925, South Africa.
- UCT Neuroscience Institute, Cape Town, South Africa.
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27
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Wang X, Tang R, Wei Z, Zhan Y, Lu J, Li Z. The enteric nervous system deficits in autism spectrum disorder. Front Neurosci 2023; 17:1101071. [PMID: 37694110 PMCID: PMC10484716 DOI: 10.3389/fnins.2023.1101071] [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: 11/17/2022] [Accepted: 08/08/2023] [Indexed: 09/12/2023] Open
Abstract
Gastrointestinal (GI) disorders are common comorbidities in individuals with autism spectrum disorder (ASD), and abnormalities in these issues have been found to be closely related to the severity of core behavioral deficits in autism. The enteric nervous system (ENS) plays a crucial role in regulating various aspects of gut functions, including gastrointestinal motility. Dysfunctional wiring in the ENS not only results in various gastrointestinal issues, but also correlates with an increasing number of central nervous system (CNS) disorders, such as ASD. However, it remains unclear whether the gastrointestinal dysfunctions are a consequence of ASD or if they directly contribute to its pathogenesis. This review focuses on the deficits in the ENS associated with ASD, and highlights several high-risk genes for ASD, which are expressed widely in the gut and implicated in gastrointestinal dysfunction among both animal models and human patients with ASD. Furthermore, we provide a brief overview of environmental factors associated with gastrointestinal tract in individuals with autism. This could offer fresh perspectives on our understanding of ASD.
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Affiliation(s)
- Xinnian Wang
- CAS Key Laboratory of Brain Connectome and Manipulation, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- School of Life Science, USTC Life Sciences and Medicine, Hefei, China
| | - Ruijin Tang
- CAS Key Laboratory of Brain Connectome and Manipulation, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zhen Wei
- Department of Child Psychiatry and Rehabilitation, Affiliated Shenzhen Maternity and Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Yang Zhan
- CAS Key Laboratory of Brain Connectome and Manipulation, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jianping Lu
- Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen, China
| | - Zhiling Li
- CAS Key Laboratory of Brain Connectome and Manipulation, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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28
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Pagano J, Landi S, Stefanoni A, Nardi G, Albanesi M, Bauer HF, Pracucci E, Schön M, Ratto GM, Boeckers TM, Sala C, Verpelli C. Shank3 deletion in PV neurons is associated with abnormal behaviors and neuronal functions that are rescued by increasing GABAergic signaling. Mol Autism 2023; 14:28. [PMID: 37528484 PMCID: PMC10394945 DOI: 10.1186/s13229-023-00557-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 06/27/2023] [Indexed: 08/03/2023] Open
Abstract
BACKGROUND Phelan-McDermid syndrome (PMS) is a neurodevelopmental disorder characterized by developmental delay, intellectual disability, and autistic-like behaviors and is primarily caused by haploinsufficiency of SHANK3 gene. Currently, there is no specific treatment for PMS, highlighting the need for a better understanding of SHANK3 functions and the underlying pathophysiological mechanisms in the brain. We hypothesize that SHANK3 haploinsufficiency may lead to alterations in the inhibitory system, which could be linked to the excitatory/inhibitory imbalance observed in models of autism spectrum disorder (ASD). Investigation of these neuropathological features may shed light on the pathogenesis of PMS and potential therapeutic interventions. METHODS We recorded local field potentials and visual evoked responses in the visual cortex of Shank3∆11-/- mice. Then, to understand the impact of Shank3 in inhibitory neurons, we generated Pv-cre+/- Shank3Fl/Wt conditional mice, in which Shank3 was deleted in parvalbumin-positive neurons. We characterized the phenotype of this murine model and we compared this phenotype before and after ganaxolone administration. RESULTS We found, in the primary visual cortex, an alteration of the gain control of Shank3 KO compared with Wt mice, indicating a deficit of inhibition on pyramidal neurons. This alteration was rescued after the potentiation of GABAA receptor activity by Midazolam. Behavioral analysis showed an impairment in grooming, memory, and motor coordination of Pv-cre+/- Shank3Fl/Wt compared with Pv-cre+/- Shank3Wt/Wt mice. These deficits were rescued with ganaxolone, a positive modulator of GABAA receptors. Furthermore, we demonstrated that treatment with ganaxolone also ameliorated evocative memory deficits and repetitive behavior of Shank3 KO mice. LIMITATIONS Despite the significant findings of our study, some limitations remain. Firstly, the neurobiological mechanisms underlying the link between Shank3 deletion in PV neurons and behavioral alterations need further investigation. Additionally, the impact of Shank3 on other classes of inhibitory neurons requires further exploration. Finally, the pharmacological activity of ganaxolone needs further characterization to improve our understanding of its potential therapeutic effects. CONCLUSIONS Our study provides evidence that Shank3 deletion leads to an alteration in inhibitory feedback on cortical pyramidal neurons, resulting in cortical hyperexcitability and ASD-like behavioral problems. Specifically, cell type-specific deletion of Shank3 in PV neurons was associated with these behavioral deficits. Our findings suggest that ganaxolone may be a potential pharmacological approach for treating PMS, as it was able to rescue the behavioral deficits in Shank3 KO mice. Overall, our study highlights the importance of investigating the role of inhibitory neurons and potential therapeutic interventions in neurodevelopmental disorders such as PMS.
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Affiliation(s)
- Jessica Pagano
- CNR, Neuroscience Institute, Via Follereau 3, 20854, Vedano al Lambro, Milan, Italy
| | - Silvia Landi
- CNR, Neuroscience Institute, Pisa, Italy
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy
| | - Alessia Stefanoni
- CNR, Neuroscience Institute, Via Follereau 3, 20854, Vedano al Lambro, Milan, Italy
| | - Gabriele Nardi
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy
| | - Marica Albanesi
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy
| | - Helen F Bauer
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Enrico Pracucci
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy
| | - Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Gian Michele Ratto
- CNR, Neuroscience Institute, Pisa, Italy
- NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore, Pisa, Italy
- Padova Neuroscience Center, Università degli Studi di Padova, Padua, Italy
| | - Tobias M Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
- DZNE, Ulm Site, Ulm, Germany
| | - Carlo Sala
- CNR, Neuroscience Institute, Via Follereau 3, 20854, Vedano al Lambro, Milan, Italy
| | - Chiara Verpelli
- CNR, Neuroscience Institute, Via Follereau 3, 20854, Vedano al Lambro, Milan, Italy.
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29
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Davidson EA, Holingue C, Jimenez-Gomez A, Dallman JE, Moshiree B. Gastrointestinal Dysfunction in Genetically Defined Neurodevelopmental Disorders. Semin Neurol 2023; 43:645-660. [PMID: 37586397 PMCID: PMC10895389 DOI: 10.1055/s-0043-1771460] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
Gastrointestinal symptoms are common in most forms of neurodevelopment disorders (NDDs) such as in autism spectrum disorders (ASD). The current patient-reported outcome measures with validated questionnaires used in the general population of children without NDDS cannot be used in the autistic individuals. We explore here the multifactorial pathophysiology of ASD and the role of genetics and the environment in this disease spectrum and focus instead on possible diagnostics that could provide future objective insight into the connection of the gut-brain-microbiome in this disease entity. We provide our own data from both humans and a zebrafish model of ASD called Phelan-McDermid Syndrome. We hope that this review highlights the gaps in our current knowledge on many of these profound NDDs and that it provides a future framework upon which clinicians and researchers can build and network with other interested multidisciplinary specialties.
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Affiliation(s)
| | - Calliope Holingue
- Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, Maryland
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - Andres Jimenez-Gomez
- Neuroscience Center, Joe DiMaggio Children’s Hospital, Hollywood, Florida
- Department of Child Neurology, Florida Atlantic University Stiles - Nicholson Brain Institute, Jupiter, Florida
| | - Julia E. Dallman
- Department of Biology, University of Miami, Coral Gables, Miami, Florida
| | - Baharak Moshiree
- Atrium Health, Wake Forest Medical University, Charlotte, North Carolina
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30
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Srivastava S, Sahin M, Buxbaum JD, Berry-Kravis E, Soorya LV, Thurm A, Bernstein JA, Asante-Otoo A, Bennett WE, Betancur C, Brickhouse TH, Passos Bueno MR, Chopra M, Christensen CK, Cully JL, Dies K, Friedman K, Gummere B, Holder JL, Jimenez-Gomez A, Kerins CA, Khan O, Kohlenberg T, Lacro RV, Levy LA, Levy T, Linnehan D, Loth E, Moshiree B, Neumeyer A, Paul SM, Phelan K, Persico A, Rapaport R, Rogers C, Saland J, Sethuram S, Shapiro J, Tarr PI, White KM, Wickstrom J, Williams KM, Winrow D, Wishart B, Kolevzon A. Updated consensus guidelines on the management of Phelan-McDermid syndrome. Am J Med Genet A 2023; 191:2015-2044. [PMID: 37392087 PMCID: PMC10524678 DOI: 10.1002/ajmg.a.63312] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 05/04/2023] [Accepted: 05/18/2023] [Indexed: 07/02/2023]
Abstract
Phelan-McDermid syndrome (PMS) is a genetic condition caused by SHANK3 haploinsufficiency and characterized by a wide range of neurodevelopmental and systemic manifestations. The first practice parameters for assessment and monitoring in individuals with PMS were published in 2014; recently, knowledge about PMS has grown significantly based on data from longitudinal phenotyping studies and large-scale genotype-phenotype investigations. The objective of these updated clinical management guidelines was to: (1) reflect the latest in knowledge in PMS and (2) provide guidance for clinicians, researchers, and the general community. A taskforce was established with clinical experts in PMS and representatives from the parent community. Experts joined subgroups based on their areas of specialty, including genetics, neurology, neurodevelopment, gastroenterology, primary care, physiatry, nephrology, endocrinology, cardiology, gynecology, and dentistry. Taskforce members convened regularly between 2021 and 2022 and produced specialty-specific guidelines based on iterative feedback and discussion. Taskforce leaders then established consensus within their respective specialty group and harmonized the guidelines. The knowledge gained over the past decade allows for improved guidelines to assess and monitor individuals with PMS. Since there is limited evidence specific to PMS, intervention mostly follows general guidelines for treating individuals with developmental disorders. Significant evidence has been amassed to guide the management of comorbid neuropsychiatric conditions in PMS, albeit mainly from caregiver report and the experience of clinical experts. These updated consensus guidelines on the management of PMS represent an advance for the field and will improve care in the community. Several areas for future research are also highlighted and will contribute to subsequent updates with more refined and specific recommendations as new knowledge accumulates.
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Affiliation(s)
- Siddharth Srivastava
- Department of Neurology, Boston Children’s Hospital, Boston, MA, USA
- Rosamund Stone Zander Translational Neuroscience Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Mustafa Sahin
- Department of Neurology, Boston Children’s Hospital, Boston, MA, USA
- Rosamund Stone Zander Translational Neuroscience Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Joseph D. Buxbaum
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Elizabeth Berry-Kravis
- Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA
- Department of Neurological Sciences, Rush University Medical Center, Chicago, IL, USA
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | | | - Audrey Thurm
- Neurodevelopmental and Behavioral Phenotyping Service, National Institute of Mental Health, National Institutes of Health, Bethesda, MD, USA
| | | | - Afua Asante-Otoo
- Rehabilitation Medicine Department, NIH Clinical Center, Bethesda, MD, USA
| | - William E. Bennett
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Catalina Betancur
- Sorbonne Université, INSERM, CNRS, Neuroscience Paris Seine, Institut de Biologie Paris Seine, Paris, France
| | - Tegwyn H. Brickhouse
- Department of Dental Public Health & Policy, School of Dentistry, Virginia Commonwealth University, Richmond, VA, USA
| | - Maria Rita Passos Bueno
- Departamento de Genética e Biologia Evolutiva, Centro de Estudos do Genoma Humano e Células-tronco, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Maya Chopra
- Department of Neurology, Boston Children’s Hospital, Boston, MA, USA
- Rosamund Stone Zander Translational Neuroscience Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Celanie K. Christensen
- Division of Developmental Medicine, Department of Pediatrics, Riley Children’s Health, Indianapolis, IN, USA
- Division of Child Neurology, Department of Neurology, Riley Children’s Health, Indianapolis, IN, USA
| | - Jennifer L. Cully
- Department of Pediatrics, College of Medicine and Division of Dentistry and Orthodontics, University of Cincinnati, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - Kira Dies
- Department of Neurology, Boston Children’s Hospital, Boston, MA, USA
- Rosamund Stone Zander Translational Neuroscience Center, Boston Children’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Kate Friedman
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - J. Lloyd Holder
- Department of Pediatrics-Neurology, Baylor College of Medicine, Houston, TX, USA
| | | | - Carolyn A. Kerins
- Department of Pediatric Dentistry, School of Dentistry, Texas A&M University, Dallas, TX, USA
| | - Omar Khan
- National Institute of Neurological Disease and Stroke, Bethesda, MD, USA
| | | | - Ronald V. Lacro
- Department of Cardiology, Boston Children’s Hospital, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | | | - Tess Levy
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Eva Loth
- Kings College London, London, UK
| | - Baharak Moshiree
- Department of Medicine, Wake Forest/Atrium Health, Charlotte, NC, USA
| | - Ann Neumeyer
- Lurie Center for Autism, Massachusetts General Hospital, Lexington MA, USA, Harvard Medical School, Boston, MA USA
| | - Scott M. Paul
- Rehabilitation Medicine Department, NIH Clinical Center, Bethesda, MD, USA
| | - Katy Phelan
- Genetics Laboratory, Florida Cancer Specialists and Research Institute, Fort Myers, FL, USA
| | - Antonio Persico
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Robert Rapaport
- Department of Pediatrics, Kravis Children’s Hospital, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Jeffrey Saland
- Department of Pediatrics, Kravis Children’s Hospital, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Swathi Sethuram
- Department of Pediatrics, Massachusetts General Hospital, Boston, MA, USA
| | | | - Phillip I. Tarr
- Department of Pediatrics, Washington University School of Medicine, St. Louis, MO, USA
| | - Kerry M. White
- Division of Developmental Medicine, Department of Pediatrics, Riley Children’s Health, Indianapolis, IN, USA
- Department of Medical and Molecular Genetics, Riley Children’s Health, Indianapolis, IN, USA
| | - Jordan Wickstrom
- Sinai Rehabilitation Center, Lifebridge Health, Baltimore, MD, USA
| | - Kent M. Williams
- Department of Pediatrics, The Ohio State University School of Medicine, Columbus, OH, USA
| | | | | | - Alexander Kolevzon
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pediatrics, Kravis Children’s Hospital, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Ross MM, Aizenman E. GluA1-Shank3 interaction decreases in response to chronic neuronal depolarization. Neurosci Lett 2023; 809:137305. [PMID: 37210067 PMCID: PMC10330850 DOI: 10.1016/j.neulet.2023.137305] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
Interactions between AMPA receptors and synaptic scaffolding proteins are key regulators of synaptic receptor density and, thereby, synapse strength. Shank3 is one such scaffolding protein with high clinical relevance, as genetic variants and deletions of this protein have been linked to autism spectrum disorder. Shank3 acts as a master regulator of the postsynaptic density of glutamatergic synapses, interacting with ionotropic and metabotropic glutamate receptors and cytoskeletal elements to modulate synaptic structure. Notably, Shank3 has been shown to interact directly with the AMPAR subunit GluA1, and Shank3 knockout animals show deficits in AMPAR-mediated synaptic transmission. In this study, we sought to characterize the stability of GluA1-Shank3 interaction in response to chronic stimuli using a highly sensitive and specific proximity ligation assay. We found that GluA1-Shank3 interactions decrease in response to prolonged neuronal depolarization induced by elevated extracellular potassium, and that this reduced interaction is blocked by NMDA receptor antagonism. These results firmly establish the close interaction of GluA1 and Shank3 in cortical neurons in vitro, and that this select interaction is subject to modulation by depolarization.
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Affiliation(s)
- Madeline M Ross
- Department of Neurobiology and Pittsburgh Institute for Neurodegenerative Disorders, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Elias Aizenman
- Department of Neurobiology and Pittsburgh Institute for Neurodegenerative Disorders, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.
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32
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Landry O, François A, Oye Mintsa Mi-Mba MF, Traversy MT, Tremblay C, Emond V, Bennett DA, Gylys KH, Buxbaum JD, Calon F. Postsynaptic Protein Shank3a Deficiency Synergizes with Alzheimer's Disease Neuropathology to Impair Cognitive Performance in the 3xTg-AD Murine Model. J Neurosci 2023; 43:4941-4954. [PMID: 37253603 PMCID: PMC10312061 DOI: 10.1523/jneurosci.1945-22.2023] [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: 08/09/2022] [Revised: 04/17/2023] [Accepted: 05/04/2023] [Indexed: 06/01/2023] Open
Abstract
Synaptic loss is intrinsically linked to Alzheimer's disease (AD) neuropathology and symptoms, but its direct impact on clinical symptoms remains elusive. The postsynaptic protein Shank3 (SH3 and multiple ankyrin repeat domains) is of particular interest, as the loss of a single allele of the SHANK3 gene is sufficient to cause profound cognitive symptoms in children. We thus sought to determine whether a SHANK3 deficiency could contribute to the emergence or worsening of AD symptoms and neuropathology. We first found a 30%-50% postmortem loss of SHANK3a associated with cognitive decline in the parietal cortex of individuals with AD. To further probe the role of SHANK3 in AD, we crossed male and female 3xTg-AD mice modelling Aβ and tau pathologies with Shank3a-deficient mice (Shank3Δex4-9). We observed synergistic deleterious effects of Shank3a deficiency and AD neuropathology on object recognition memory at 9, 12, and 18 months of age and on anxious behavior at 9 and 12 months of age in hemizygous Shank3Δex4-9-3xTg-AD mice. In addition to the expected 50% loss of Shank3a, levels of other synaptic proteins, such as PSD-95, drebrin, and homer1, remained unchanged in the parietotemporal cortex of hemizygous Shank3Δex4-9 animals. However, Shank3a deficiency increased the levels of soluble Aβ42 and human tau at 18 months of age compared with 3xTg-AD mice with normal Shank3 expression. The results of this study in human brain samples and in transgenic mice are consistent with the hypothesis that Shank3 deficiency makes a key contribution to cognitive impairment in AD.SIGNIFICANCE STATEMENT Although the loss of several synaptic proteins has been described in Alzheimer's disease (AD), it remains unclear whether their reduction contributes to clinical symptoms. The results of this study in human samples show lower levels of SHANK3a in AD brain, correlating with cognitive decline. Data gathered in a novel transgenic mouse suggest that Shank3a deficiency synergizes with AD neuropathology to induce cognitive impairment, consistent with a causal role in AD. Therefore, treatment aiming at preserving Shank3 in the aging brain may be beneficial to prevent AD.
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Affiliation(s)
- Olivier Landry
- Faculté de pharmacie, Université Laval, Quebec G1V 0A6, Quebec, Canada
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
| | - Arnaud François
- Faculté de pharmacie, Université Laval, Quebec G1V 0A6, Quebec, Canada
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
| | - Méryl-Farelle Oye Mintsa Mi-Mba
- Faculté de pharmacie, Université Laval, Quebec G1V 0A6, Quebec, Canada
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
| | - Marie-Therese Traversy
- Faculté de pharmacie, Université Laval, Quebec G1V 0A6, Quebec, Canada
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
| | - Cyntia Tremblay
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
| | - Vincent Emond
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
| | - David A Bennett
- Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, Illinois 60612
| | - Karen H Gylys
- School of Nursing, University of California, Los Angeles, California 90095
| | - Joseph D Buxbaum
- Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York 10029, New York
| | - Frédéric Calon
- Faculté de pharmacie, Université Laval, Quebec G1V 0A6, Quebec, Canada
- Axe Neurosciences, Centre de recherche du CHU de Québec-Université Laval, Quebec G1V 4G2, Quebec, Canada
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Molloy CJ, Cooke J, Gatford NJF, Rivera-Olvera A, Avazzadeh S, Homberg JR, Grandjean J, Fernandes C, Shen S, Loth E, Srivastava DP, Gallagher L. Bridging the translational gap: what can synaptopathies tell us about autism? Front Mol Neurosci 2023; 16:1191323. [PMID: 37441676 PMCID: PMC10333541 DOI: 10.3389/fnmol.2023.1191323] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/24/2023] [Indexed: 07/15/2023] Open
Abstract
Multiple molecular pathways and cellular processes have been implicated in the neurobiology of autism and other neurodevelopmental conditions. There is a current focus on synaptic gene conditions, or synaptopathies, which refer to clinical conditions associated with rare genetic variants disrupting genes involved in synaptic biology. Synaptopathies are commonly associated with autism and developmental delay and may be associated with a range of other neuropsychiatric outcomes. Altered synaptic biology is suggested by both preclinical and clinical studies in autism based on evidence of differences in early brain structural development and altered glutamatergic and GABAergic neurotransmission potentially perturbing excitatory and inhibitory balance. This review focusses on the NRXN-NLGN-SHANK pathway, which is implicated in the synaptic assembly, trans-synaptic signalling, and synaptic functioning. We provide an overview of the insights from preclinical molecular studies of the pathway. Concentrating on NRXN1 deletion and SHANK3 mutations, we discuss emerging understanding of cellular processes and electrophysiology from induced pluripotent stem cells (iPSC) models derived from individuals with synaptopathies, neuroimaging and behavioural findings in animal models of Nrxn1 and Shank3 synaptic gene conditions, and key findings regarding autism features, brain and behavioural phenotypes from human clinical studies of synaptopathies. The identification of molecular-based biomarkers from preclinical models aims to advance the development of targeted therapeutic treatments. However, it remains challenging to translate preclinical animal models and iPSC studies to interpret human brain development and autism features. We discuss the existing challenges in preclinical and clinical synaptopathy research, and potential solutions to align methodologies across preclinical and clinical research. Bridging the translational gap between preclinical and clinical studies will be necessary to understand biological mechanisms, to identify targeted therapies, and ultimately to progress towards personalised approaches for complex neurodevelopmental conditions such as autism.
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Affiliation(s)
- Ciara J. Molloy
- Department of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Jennifer Cooke
- Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Nicholas J. F. Gatford
- Kavli Institute for Nanoscience Discovery, Nuffield Department of Clinical Neurosciences, University of Oxford, Medical Sciences Division, Oxford, United Kingdom
| | - Alejandro Rivera-Olvera
- Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Sahar Avazzadeh
- Physiology and Cellular Physiology Research Laboratory, CÚRAM SFI Centre for Research in Medical Devices, School of Medicine, Human Biology Building, University of Galway, Galway, Ireland
| | - Judith R. Homberg
- Donders Institute for Brain, Cognition, and Behaviour, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Joanes Grandjean
- Physiology and Cellular Physiology Research Laboratory, CÚRAM SFI Centre for Research in Medical Devices, School of Medicine, Human Biology Building, University of Galway, Galway, Ireland
- Department of Medical Imaging, Radboud University Medical Centre, Nijmegen, Netherlands
| | - Cathy Fernandes
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Sanbing Shen
- Regenerative Medicine Institute, School of Medicine, University of Galway, Galway, Ireland
- FutureNeuro, The SFI Research Centre for Chronic and Rare Neurological Diseases, Royal College of Surgeons, Dublin, Ireland
| | - Eva Loth
- Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Deepak P. Srivastava
- MRC Centre for Neurodevelopmental Disorders, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Louise Gallagher
- Department of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
- The Hospital for SickKids, Toronto, ON, Canada
- The Peter Gilgan Centre for Research and Learning, SickKids Research Institute, Toronto, ON, Canada
- The Centre for Addiction and Mental Health, Toronto, ON, Canada
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
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Mango D, Ledonne A. Updates on the Physiopathology of Group I Metabotropic Glutamate Receptors (mGluRI)-Dependent Long-Term Depression. Cells 2023; 12:1588. [PMID: 37371058 DOI: 10.3390/cells12121588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/01/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Group I metabotropic glutamate receptors (mGluRI), including mGluR1 and mGluR5 subtypes, modulate essential brain functions by affecting neuronal excitability, intracellular calcium dynamics, protein synthesis, dendritic spine formation, and synaptic transmission and plasticity. Nowadays, it is well appreciated that the mGluRI-dependent long-term depression (LTD) of glutamatergic synaptic transmission (mGluRI-LTD) is a key mechanism by which mGluRI shapes connectivity in various cerebral circuitries, directing complex brain functions and behaviors, and that it is deranged in several neurological and psychiatric illnesses, including neurodevelopmental disorders, neurodegenerative diseases, and psychopathologies. Here, we will provide an updated overview of the physiopathology of mGluRI-LTD, by describing mechanisms of induction and regulation by endogenous mGluRI interactors, as well as functional physiological implications and pathological deviations.
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Affiliation(s)
- Dalila Mango
- School of Pharmacy, University of Rome "Tor Vergata", 00133 Rome, Italy
- Laboratory of Pharmacology of Synaptic Plasticity, European Brain Research Institute, 00161 Rome, Italy
| | - Ada Ledonne
- Department of Systems Medicine, University of Rome "Tor Vergata", 00133 Rome, Italy
- Department of Experimental Neuroscience, IRCCS Fondazione Santa Lucia, 00143 Rome, Italy
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van Balkom ID, Burdeus-Olavarrieta M, Cooke J, de Cuba AG, Turner A. Consensus recommendations on mental health issues in Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104770. [PMID: 37085014 DOI: 10.1016/j.ejmg.2023.104770] [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: 11/21/2022] [Revised: 04/12/2023] [Accepted: 04/18/2023] [Indexed: 04/23/2023]
Abstract
Phelan-McDermid syndrome is a rare genetic condition caused by a deletion encompassing the 22q13.3 region or a pathogenic variant of the gene SHANK3. The clinical presentation is variable, but main characteristics include global developmental delay/intellectual disability (ID), marked speech impairment or delay, along with other features like hypotonia and somatic or psychiatric comorbidities. This publication delineates mental health, developmental and behavioural themes across the lifetime of individuals with PMS as informed by parents/caregivers, experts, and other key professionals involved in PMS care. We put forward several recommendations based on the available literature concerning mental health and behaviour in PMS. Additionally, this article aims to improve our awareness of the importance of considering developmental level of the individual with PMS when assessing mental health and behavioural issues. Understanding how the discrepancy between developmental level and chronological age may impact concerning behaviours offers insight into the meaning of those behaviours and informs care for individuals with PMS, enabling clinicians to address unmet (mental health) care needs and improve quality of life.
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Affiliation(s)
- Ingrid Dc van Balkom
- Jonx, Department of (Youth) Mental Health and Autism, Lentis Psychiatric Institute, Groningen, the Netherlands; Rob Giel Research Centre, Department of Psychiatry, University Medical Center Groningen, Groningen, the Netherlands.
| | - Monica Burdeus-Olavarrieta
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; School of Psychology, Universidad Autónoma, Madrid, Spain
| | - Jennifer Cooke
- Forensic and Neurodevelopmental Sciences Department, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, United Kingdom
| | - A Graciela de Cuba
- Jonx, Department of (Youth) Mental Health and Autism, Lentis Psychiatric Institute, Groningen, the Netherlands
| | - Alison Turner
- Phelan-McDermid Syndrome Foundation UK, 99 Highgate W Hill, London, N6 6NR, United Kingdom
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36
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Schön M, Pablo L, Julián N, Mattina T, Gunnarsson C, Hadzsiev K, Verpelli C, Bourgeron T, Sarah J, van Ravenswaaij-Arts CMA, Hennekam RC. Definition and clinical variability of SHANK3-related Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104754. [PMID: 37003575 DOI: 10.1016/j.ejmg.2023.104754] [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: 12/10/2022] [Revised: 03/14/2023] [Accepted: 03/26/2023] [Indexed: 04/03/2023]
Abstract
Phelan-McDermid syndrome (PMS) is an infrequently described syndrome that presents with a disturbed development, neurological and psychiatric characteristics, and sometimes other comorbidities. As part of the development of European medical guidelines we studied the definition, phenotype, genotype-phenotype characteristics, and natural history of the syndrome. The number of confirmed diagnoses of PMS in different European countries was also assessed and it could be concluded that PMS is underdiagnosed. The incidence of PMS in European countries is estimated to be at least 1 in 30,000. Next generation sequencing, including analysis of copy number variations, as first tier in diagnostics of individuals with intellectual disability will likely yield a larger number of individuals with PMS than presently known. A definition of PMS by its phenotype is at the present not possible, and therefore PMS-SHANK3 related is defined by the presence of SHANK3 haploinsufficiency, either by a deletion involving region 22q13.2-33 or a pathogenic/likely pathogenic variant in SHANK3. In summarizing the phenotype, we subdivided it into that of individuals with a 22q13 deletion and that of those with a pathogenic/likely pathogenic SHANK3 variant. The phenotype of individuals with PMS is variable, depending in part on the deletion size or, whether only a variant of SHANK3 is present. The core phenotype in the domains development, neurology, and senses are similar in those with deletions and SHANK3 variants, but individuals with a SHANK3 variant more often are reported to have behavioural disorders and less often urogenital malformations and lymphedema. The behavioural disorders may, however, be a less outstanding feature in individuals with deletions accompanied by more severe intellectual disability. Data available on the natural history are limited. Results of clinical trials using insulin-like growth factor I (IGF-1), intranasal insulin, and oxytocin are available, other trials are in progress. The present guidelines for PMS aim at offering tools to caregivers and families to provide optimal care to individuals with PMS.
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Affiliation(s)
- Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, Germany.
| | - Lapunzina Pablo
- Instituto de Genética Médica y Molecular (INGEMM)-IdiPAZ, Hospital Universitario La Paz, CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII; ITHACA-European Reference Network, Hospital La Paz, Madrid, Spain
| | - Nevado Julián
- Instituto de Genética Médica y Molecular (INGEMM)-IdiPAZ, Hospital Universitario La Paz, CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII; ITHACA-European Reference Network, Hospital La Paz, Madrid, Spain
| | - Teresa Mattina
- Department of Biomedical and Biotechnological Sciences, Medical Genetics, University of Catania, Catania, Italy
| | - Cecilia Gunnarsson
- Department of Clinical Genetics and Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Centre for Rare Diseases in South East Region of Sweden, Linköping University, Linköping, Sweden
| | - Kinga Hadzsiev
- Department of Medical Genetics, Medical School, University of Pécs, Pécs, Hungary
| | | | - Thomas Bourgeron
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Jesse Sarah
- Department of Neurology, Ulm University, Germany
| | | | - Raoul C Hennekam
- Department of Pediatrics, Amsterdam University Medical Center, Amsterdam, the Netherlands
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Ferhat AT, Verpy E, Biton A, Forget B, De Chaumont F, Mueller F, Le Sourd AM, Coqueran S, Schmitt J, Rochefort C, Rondi-Reig L, Leboucher A, Boland A, Fin B, Deleuze JF, Boeckers TM, Ey E, Bourgeron T. Excessive self-grooming, gene dysregulation and imbalance between the striosome and matrix compartments in the striatum of Shank3 mutant mice. Front Mol Neurosci 2023; 16:1139118. [PMID: 37008785 PMCID: PMC10061084 DOI: 10.3389/fnmol.2023.1139118] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/16/2023] [Indexed: 03/18/2023] Open
Abstract
Autism is characterized by atypical social communication and stereotyped behaviors. Mutations in the gene encoding the synaptic scaffolding protein SHANK3 are detected in 1–2% of patients with autism and intellectual disability, but the mechanisms underpinning the symptoms remain largely unknown. Here, we characterized the behavior of Shank3Δ11/Δ11 mice from 3 to 12 months of age. We observed decreased locomotor activity, increased stereotyped self-grooming and modification of socio-sexual interaction compared to wild-type littermates. We then used RNAseq on four brain regions of the same animals to identify differentially expressed genes (DEGs). DEGs were identified mainly in the striatum and were associated with synaptic transmission (e.g., Grm2, Dlgap1), G-protein-signaling pathways (e.g., Gnal, Prkcg1, and Camk2g), as well as excitation/inhibition balance (e.g., Gad2). Downregulated and upregulated genes were enriched in the gene clusters of medium-sized spiny neurons expressing the dopamine 1 (D1-MSN) and the dopamine 2 receptor (D2-MSN), respectively. Several DEGs (Cnr1, Gnal, Gad2, and Drd4) were reported as striosome markers. By studying the distribution of the glutamate decarboxylase GAD65, encoded by Gad2, we showed that the striosome compartment of Shank3Δ11/Δ11 mice was enlarged and displayed much higher expression of GAD65 compared to wild-type mice. Altogether, these results indicate altered gene expression in the striatum of Shank3-deficient mice and strongly suggest, for the first time, that the excessive self-grooming of these mice is related to an imbalance in the striatal striosome and matrix compartments.
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Affiliation(s)
- Allain-Thibeault Ferhat
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
- Department of Neuroscience, Columbia University Irving Medical Center, New York, NY, United States
- Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY, United States
- *Correspondence: Allain-Thibeault Ferhat,
| | - Elisabeth Verpy
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
| | - Anne Biton
- Bioinformatics and Biostatistics Hub, Institut Pasteur, Université Paris Cité, Paris, France
| | - Benoît Forget
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
| | - Fabrice De Chaumont
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
| | - Florian Mueller
- Imagerie et Modélisation, Institut Pasteur, CNRS UMR 3691, Paris, France
| | - Anne-Marie Le Sourd
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
| | - Sabrina Coqueran
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
| | - Julien Schmitt
- Cerebellum Navigation and Memory Team, Institut de Biologie Paris Seine, Neurosciences Paris Seine, CNRS UMR 8246, Inserm UMR-S 1130, Sorbonne Université, Paris, France
| | - Christelle Rochefort
- Cerebellum Navigation and Memory Team, Institut de Biologie Paris Seine, Neurosciences Paris Seine, CNRS UMR 8246, Inserm UMR-S 1130, Sorbonne Université, Paris, France
| | - Laure Rondi-Reig
- Cerebellum Navigation and Memory Team, Institut de Biologie Paris Seine, Neurosciences Paris Seine, CNRS UMR 8246, Inserm UMR-S 1130, Sorbonne Université, Paris, France
| | - Aziliz Leboucher
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
| | - Anne Boland
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, Evry, France
| | - Bertrand Fin
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, Evry, France
| | - Jean-François Deleuze
- Centre National de Recherche en Génomique Humaine, CEA, Université Paris-Saclay, Evry, France
- Centre d’Étude du Polymorphisme Humain, Paris, France
| | - Tobias M. Boeckers
- Institute of Anatomy and Cell Biology, Ulm University, Ulm, Germany
- Deutsches Zentrum für Neurodegenerative Erkrankungen, Ulm, Germany
| | - Elodie Ey
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS UMR 7104, Inserm UMR-S 1258, Université de Strasbourg, Illkirch-Graffenstaden, France
| | - Thomas Bourgeron
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, CNRS UMR 3571, IUF, Université Paris Cité, Paris, France
- Thomas Bourgeron,
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Burdeus-Olavarrieta M, Nevado J, van Weering-Scholten S, Parker S, Swillen A. Consensus recommendations on communication, language and speech in Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104745. [PMID: 36871884 DOI: 10.1016/j.ejmg.2023.104745] [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: 11/16/2022] [Revised: 02/22/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Phelan-McDermid syndrome is a genetic condition primarily caused by a deletion on the 22q13.3 region or a likely pathogenic/pathogenic variant of SHANK3. The main features comprise global developmental delay, marked impairment or absence of speech, and other clinical characteristics to a variable degree, such as hypotonia or psychiatric comorbidities. A set of clinical guidelines for health professionals covering relevant aspects of clinical management have been written by the European PMS Consortium, and consensus has been reached regarding final recommendations. In this work, attention is given to communication, language and speech impairments in PMS, and the findings from available literature are presented. Findings from the literature review reveal marked speech impairment in up to 88% of deletions and 70% of SHANK3 variants. Absence of speech is frequent and affects 50%-80% of the individuals with PMS. Communicative skills in the expressive domain other than spoken language remain understudied, but some studies offer data on non-verbal language or the use of alternative/augmentative communication support. Loss of language and other developmental skills is reported in around 40% of individuals, with variable course. Deletion size and possibly other clinical variables (e.g., conductive hearing problems, neurological issues, intellectual disability, etc.) are related to communicative and linguistic abilities. Recommendations include regular medical check-ups of hearing and the assessment of other factors influencing communication, thorough evaluation of preverbal and verbal communicative skills, early intervention, and support via alternative/augmentative communication systems.
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Affiliation(s)
- Monica Burdeus-Olavarrieta
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañón, IiSGM, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; School of Psychology, Universidad Autónoma, Madrid, Spain.
| | - Julián Nevado
- Instituto de Genética Médica y Molecular (INGEMM)-IdiPAZ, Hospital Universitario La Paz, Madrid, Spain; CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras, ISCIII, Madrid, Spain; ITHACA-European Reference Network, Hospital La Paz, Madrid, Spain
| | | | - Susanne Parker
- Phelan-McDermid-Gesellschaft e.V. Geschäftsstelle Universitätsklinikum Ulm, Sekretariat Neurologie, Oberer Eselsberg 45, 89081, Ulm, Germany
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- Coordinated by C.M.A. van Ravenswaaij-Arts, University of Groningen, University Medical Centre Groningen, Dept. Genetics, Groningen, the Netherlands
| | - Ann Swillen
- Center for Human Genetics, University Hospital Leuven, Belgium; Department of Human Genetics, KU Leuven, Herestraat 49, 3000, Leuven, Belgium
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Apte M, Kumar A. Correlation of Mutated gene and Signalling pathways in ASD. IBRO Neurosci Rep 2023; 14:384-392. [PMID: 37101819 PMCID: PMC10123338 DOI: 10.1016/j.ibneur.2023.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
Autism is a complicated spectrum of neurodevelopmental illnesses characterized by repetitive and constrained behaviors and interests, as well as social interaction and communication difficulties that are first shown in infancy. More than 18 million Indians, according to the National Health Portal of India, and 1 in 160 children worldwide, according to the WHO, are diagnosed with autism spectrum disorders. This review aims to discuss the complex genetic architecture that underlies autism and summarizes the role of proteins likely to play in the development of autism. We also consider how genetic mutations can affect convergent signaling pathways and hinder the development of brain circuitry and the role of cognition development and theory of mind with Cognition-behavior therapy benefits in autism.
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Affiliation(s)
- Madhavi Apte
- Quality Assurance and Pharmacognosy and Phytochemistry, SVKM’s Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle, 400056 Mumbai, India
- Correspondence to: SVKM’s Dr. Bhanuben Nanavati College of Pharmacy, Mithibai Campus, V.M. Road, Vile Parle West, 400056 Mumbai, India.
| | - Aayush Kumar
- Quality Assurance, SVKM’s Dr. Bhanuben Nanavati College of Pharmacy, Vile Parle, 400056 Mumbai, India
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Vitrac A, Leblond CS, Rolland T, Cliquet F, Mathieu A, Maruani A, Delorme R, Schön M, Grabrucker AM, van Ravenswaaij-Arts C, Phelan K, Tabet AC, Bourgeron T. Dissecting the 22q13 region to explore the genetic and phenotypic diversity of patients with Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104732. [PMID: 36822569 DOI: 10.1016/j.ejmg.2023.104732] [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: 12/09/2022] [Revised: 02/14/2023] [Accepted: 02/19/2023] [Indexed: 02/25/2023]
Abstract
SHANK3-related Phelan-McDermid syndrome (PMS) is caused by a loss of the distal part of chromosome 22, including SHANK3, or by a pathological SHANK3 variant. There is an important genetic and phenotypic diversity among patients who can present with developmental delay, language impairments, autism, epilepsy, and other symptoms. SHANK3, encoding a synaptic scaffolding protein, is deleted in the majority of patients with PMS and is considered a major gene involved in the neurological impairments of the patients. However, differences in deletion size can influence clinical features, and in some rare cases, deletions at the 22q13 locus in individuals with SHANK3-unrelated PMS do not encompass SHANK3. These individuals with SHANK3-unrelated PMS still display a PMS-like phenotype. This suggests the participation of other 22q13 genes in the pathogenesis of PMS. Here, we review the biological function and potential implication in PMS symptoms of 110 genes located in the 22q13 region, focusing on 35 genes with evidence for association with neurodevelopmental disorders, including 13 genes for epilepsy and 11 genes for microcephaly and/or macrocephaly. Our review is restricted to the 22q13 region, but future large-scale studies using whole genome sequencing and deep-phenotyping are warranted to develop predictive models of clinical trajectories and to target specific medical and educational care for each individual with PMS.
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Affiliation(s)
- Aline Vitrac
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France.
| | - Claire S Leblond
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Thomas Rolland
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Freddy Cliquet
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Alexandre Mathieu
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France
| | - Anna Maruani
- Department of Child and Adolescent Psychiatry, Hôpital Robert Debré, APHP, Paris, France
| | - Richard Delorme
- Department of Child and Adolescent Psychiatry, Hôpital Robert Debré, APHP, Paris, France
| | - Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Andreas M Grabrucker
- Bernal Institute, University of Limerick, Limerick, Ireland; Dept. of Biological Sciences, University of Limerick, Limerick, Ireland; Health Research Institute HRI, University of Limerick, Limerick, Ireland
| | - Conny van Ravenswaaij-Arts
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, Netherlands
| | - Katy Phelan
- Genetics Laboratory, Florida Cancer Specialists & Research Institute, Fort Myers, FL, 33916, USA
| | | | - Thomas Bourgeron
- Génétique Humaine et Fonctions Cognitives, Institut Pasteur, UMR3571 CNRS, Université de Paris Cité, IUF, 75015, Paris, France.
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Moffitt BA, Sarasua SM, Ivankovic D, Ward LD, Valentine K, Bennett WE, Rogers C, Phelan K, Boccuto L. Stratification of a Phelan-McDermid Syndrome Population Based on Their Response to Human Growth Hormone and Insulin-like Growth Factor. Genes (Basel) 2023; 14:490. [PMID: 36833418 PMCID: PMC9956088 DOI: 10.3390/genes14020490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
Phelan-McDermid syndrome (PMS), caused by pathogenic variants in the SHANK3 gene or 22q13 deletions, is characterized by intellectual disability, autistic features, developmental delays, and neonatal hypotonia. Insulin-like growth factor 1 (IGF-1) and human growth hormone (hGH) have been shown to reverse neurobehavioral deficits in PMS. We assessed the metabolic profiling of 48 individuals with PMS and 50 controls and determined subpopulations by taking the top and bottom 25% of responders to hGH and IGF-1. A distinct metabolic profile for individuals with PMS showed a reduced ability to metabolize major energy sources and a higher metabolism of alternative energy sources. The analysis of the metabolic response to hGH or IGF-1 highlighted a major overlap between both high and low responders, validating the model and suggesting that the two growth factors share many target pathways. When we investigated the effect of hGH and IGF-1 on the metabolism of glucose, the correlation between the high-responder subgroups showed less similarity, whereas the low-responders were still relatively similar. Classification of individuals with PMS into subgroups based on responses to a compound can allow an investigation into pathogenic mechanisms, the identification of molecular biomarkers, an exploration of in vitro responses to candidate drugs, and eventually the selection of better candidates for clinical trials.
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Affiliation(s)
- Bridgette A. Moffitt
- School of Nursing, Healthcare Genetics Program, Clemson University, Clemson, SC 29634, USA
| | - Sara M. Sarasua
- School of Nursing, Healthcare Genetics Program, Clemson University, Clemson, SC 29634, USA
| | - Diana Ivankovic
- School of Nursing, Healthcare Genetics Program, Clemson University, Clemson, SC 29634, USA
| | - Linda D. Ward
- School of Nursing, Healthcare Genetics Program, Clemson University, Clemson, SC 29634, USA
| | - Kathleen Valentine
- School of Nursing, Healthcare Genetics Program, Clemson University, Clemson, SC 29634, USA
| | - William E. Bennett
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Indiana University, Riley Hospital for Children, Indianapolis, IN 46202, USA
| | | | - Katy Phelan
- Genetics Laboratory, Florida Cancer Specialists & Research Institute, Fort Myers, FL 33916, USA
| | - Luigi Boccuto
- School of Nursing, Healthcare Genetics Program, Clemson University, Clemson, SC 29634, USA
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Walinga M, Jesse S, Alhambra N, Van Buggenhout G. Consensus recommendations on altered sensory functioning in Phelan-McDermid syndrome. Eur J Med Genet 2023; 66:104726. [PMID: 36796507 DOI: 10.1016/j.ejmg.2023.104726] [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: 11/04/2022] [Revised: 01/30/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
Altered sensory functioning is often observed in individuals with SHANK3 related Phelan-McDermid syndrome (PMS). Compared to typically developing individuals and individuals with an autism spectrum disorder, it has been suggested that there are distinctive features of sensory functioning in PMS. More hyporeactivity symptoms and less hyperreactivity and sensory seeking behaviour are seen, particularly in the auditory domain. Hypersensitivity to touch, possible overheating or turning red easily and reduced pain response are often seen. In this paper the current literature on sensory functioning in PMS is reviewed and recommendations for caregivers, based on consensus within the European PMS consortium, are given.
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Affiliation(s)
- Margreet Walinga
- University of Groningen, University Medical Center Groningen, Dept. Genetics, Groningen, the Netherlands.
| | - Sarah Jesse
- University of Ulm, Department of Neurology, Ulm, Germany
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43
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Huang M, Qi Q, Xu T. Targeting Shank3 deficiency and paresthesia in autism spectrum disorder: A brief review. Front Mol Neurosci 2023; 16:1128974. [PMID: 36846568 PMCID: PMC9948097 DOI: 10.3389/fnmol.2023.1128974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
Autism spectrum disorder (ASD) includes a group of multifactorial neurodevelopmental disorders characterized by impaired social communication, social interaction, and repetitive behaviors. Several studies have shown an association between cases of ASD and mutations in the genes of SH3 and multiple ankyrin repeat domain protein 3 (SHANK3). These genes encode many cell adhesion molecules, scaffold proteins, and proteins involved in synaptic transcription, protein synthesis, and degradation. They have a profound impact on all aspects of synaptic transmission and plasticity, including synapse formation and degeneration, suggesting that the pathogenesis of ASD may be partially attributable to synaptic dysfunction. In this review, we summarize the mechanism of synapses related to Shank3 in ASD. We also discuss the molecular, cellular, and functional studies of experimental models of ASD and current autism treatment methods targeting related proteins.
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Affiliation(s)
- Min Huang
- Department of Anesthesiology, Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China,Department of Anesthesiology, Suzhou Hospital of Anhui Medical University, Suzhou, China
| | - Qi Qi
- Department of Anesthesiology, Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China,Department of Anesthesiology, Suzhou Hospital of Anhui Medical University, Suzhou, China
| | - Tao Xu
- Department of Anesthesiology, Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China,Department of Anesthesiology, Suzhou Hospital of Anhui Medical University, Suzhou, China,*Correspondence: Tao Xu,
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44
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Qiu S, Qiu Y, Li Y, Zhu X, Liu Y, Qiao Y, Cheng Y, Liu Y. Nexus between genome-wide copy number variations and autism spectrum disorder in Northeast Han Chinese population. BMC Psychiatry 2023; 23:96. [PMID: 36750796 PMCID: PMC9906952 DOI: 10.1186/s12888-023-04565-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 01/23/2023] [Indexed: 02/09/2023] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is a common neurodevelopmental disorder, with an increasing prevalence worldwide. Copy number variation (CNV), as one of genetic factors, is involved in ASD etiology. However, there exist substantial differences in terms of location and frequency of some CNVs in the general Asian population. Whole-genome studies of CNVs in Northeast Han Chinese samples are still lacking, necessitating our ongoing work to investigate the characteristics of CNVs in a Northeast Han Chinese population with clinically diagnosed ASD. METHODS We performed a genome-wide CNVs screening in Northeast Han Chinese individuals with ASD using array-based comparative genomic hybridization. RESULTS We found that 22 kinds of CNVs (6 deletions and 16 duplications) were potentially pathogenic. These CNVs were distributed in chromosome 1p36.33, 1p36.31, 1q42.13, 2p23.1-p22.3, 5p15.33, 5p15.33-p15.2, 7p22.3, 7p22.3-p22.2, 7q22.1-q22.2, 10q23.2-q23.31, 10q26.2-q26.3, 11p15.5, 11q25, 12p12.1-p11.23, 14q11.2, 15q13.3, 16p13.3, 16q21, 22q13.31-q13.33, and Xq12-q13.1. Additionally, we found 20 potential pathogenic genes of ASD in our population, including eight protein coding genes (six duplications [DRD4, HRAS, OPHN1, SHANK3, SLC6A3, and TSC2] and two deletions [CHRNA7 and PTEN]) and 12 microRNAs-coding genes (ten duplications [MIR202, MIR210, MIR3178, MIR339, MIR4516, MIR4717, MIR483, MIR675, MIR6821, and MIR940] and two deletions [MIR107 and MIR558]). CONCLUSION We identified CNVs and genes implicated in ASD risks, conferring perception to further reveal ASD etiology.
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Affiliation(s)
- Shuang Qiu
- grid.64924.3d0000 0004 1760 5735Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021 Jilin China ,grid.64924.3d0000 0004 1760 5735Department of Laboratory Medicine, Jilin University Hospital, Changchun, 130000 Jilin China
| | - Yingjia Qiu
- grid.415954.80000 0004 1771 3349China-Japan Union Hospital, Jilin University, Changchun, 130033 Jilin China
| | - Yong Li
- grid.64924.3d0000 0004 1760 5735Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021 Jilin China
| | - Xiaojuan Zhu
- grid.27446.330000 0004 1789 9163The Key Laboratory of Molecular Epigenetics of Ministry of Education, Institute of Cytology and Genetics, Northeast Normal University, Changchun, 130021 Jilin China
| | - Yunkai Liu
- grid.430605.40000 0004 1758 4110Department of Cardiovascular Diseases, the First Hospital of Jilin University, Changchun, 130021 Jilin China ,Key Laboratory for Cardiovascular Mechanism of Traditional Chinese Medicine, Changchun, 130021 Jilin China ,grid.430605.40000 0004 1758 4110Institute of Translational Medicine, the First Hospital of Jilin University, Changchun, 130021 Jilin China
| | - Yichun Qiao
- grid.64924.3d0000 0004 1760 5735Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021 Jilin China
| | - Yi Cheng
- Department of Cardiovascular Diseases, the First Hospital of Jilin University, Changchun, 130021, Jilin, China. .,Key Laboratory for Cardiovascular Mechanism of Traditional Chinese Medicine, Changchun, 130021, Jilin, China. .,Institute of Translational Medicine, the First Hospital of Jilin University, Changchun, 130021, Jilin, China.
| | - Yawen Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Jilin University, Changchun, 130021, Jilin, China.
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45
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Stirmlinger N, Delling JP, Pfänder S, Boeckers TM. Elevation of SHANK3 Levels by Antisense Oligonucleotides Directed Against the 3'-UTR of the Human SHANK3 mRNA. Nucleic Acid Ther 2023; 33:58-71. [PMID: 36355061 PMCID: PMC9940809 DOI: 10.1089/nat.2022.0048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
SHANK3 is a member of the SHANK family of scaffolding proteins that localize to the postsynaptic density of excitatory synapses. Mutations within the SHANK3 gene or SHANK3 haploinsufficiency is thought to be one of the major causes for Phelan-McDermid Syndrome (PMDS) that is characterized by a broad spectrum of autism-related behavioral alterations. Several approaches have already been proposed to elevate SHANK3 protein levels in PMDS patients like transcriptional activation or inhibition of SHANK3 degradation. We undertook a systematic screening approach and tested whether defined antisense oligonucleotides (ASOs) directed against the 3' untranslated region (3'-UTR) of the human SHANK3 mRNA are suitable to elevate SHANK3 protein levels. Using human induced pluripotent stem cells (hiPSCs) and hiPSCs-derived motoneurons from controls and PMDS patients we eventually identified two 18 nucleotide ASOs (ASO 4-5.2-4 and 4-5.2-6) that were able to increase SHANK3 protein levels in vitro by about 1.3- to 1.6-fold. These findings were confirmed by co-transfection of the identified ASOs with a GFP-SHANK3-3'-UTR construct in HEK293T cells using GFP protein expression as read-out. Based on these results we propose a novel approach to elevate SHANK3 protein concentrations by 3'-UTR specific ASOs. Further research is needed to test the suitability of SHANK3-specific ASOs as pharmacological compounds also in vivo.
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Affiliation(s)
- Nadine Stirmlinger
- Institute of Anatomy and Cell Biology and Ulm University, Ulm, Germany.,International Graduate School for Molecular Medicine, Ulm University, Ulm, Germany
| | | | - Stefanie Pfänder
- Institute of Anatomy and Cell Biology and Ulm University, Ulm, Germany
| | - Tobias M. Boeckers
- Institute of Anatomy and Cell Biology and Ulm University, Ulm, Germany.,DZNE, Ulm Site, Ulm, Germany.,Address correspondence to: Tobias Boeckers, MD, Institute of Anatomy and Cell Biology, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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46
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Bauer HF, Delling JP, Bockmann J, Boeckers TM, Schön M. Development of sex- and genotype-specific behavioral phenotypes in a Shank3 mouse model for neurodevelopmental disorders. Front Behav Neurosci 2023; 16:1051175. [PMID: 36699652 PMCID: PMC9868822 DOI: 10.3389/fnbeh.2022.1051175] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 12/05/2022] [Indexed: 01/11/2023] Open
Abstract
Individuals with a SHANK3-related neurodevelopmental disorder, also termed Phelan-McDermid syndrome or abbreviated as PMS, exhibit significant global developmental delay, language impairment, and muscular hypotonia. Also common are repetitive behaviors and altered social interactions, in line with a diagnosis of autism spectrum disorders. This study investigated the developmental aspect of autism-related behaviors and other phenotypes in a Shank3-transgenic mouse model. The animals underwent two sets of identical behavioral experiments, spanning motor skills, social and repetitive behavior, and cognition: baseline began at 5 weeks of age, corresponding to human adolescence, and the follow-up was initiated when aged 13 weeks, resembling early adulthood in humans. Interestingly, the animals displayed relatively stable phenotypes. Moreover, motor coordination and endurance were impaired, while muscle strength was unchanged. Surprisingly, the animals displayed only minor impairments in social behavior, but pronounced stereotypic and repetitive behaviors. Some behavioral tests indicated increased avoidance and anxiety. While spatial learning and memory were unchanged, knockout animals displayed slightly impaired cognitive flexibility. Female animals had similar abnormalities as males in the paradigms testing avoidance, anxiety, and cognition, but were less pathological in motor function and repetitive behavior. In all test paradigms, heterozygous Shank3 knockout animals had either no abnormal or a milder phenotype. Accurate characterization of animal models for genetic diseases is a prerequisite for understanding the pathophysiology. This is subsequently the basis for finding suitable and, ideally, translational biomarkers for therapeutic approaches and, thereby reducing the number of animals needed for preclinical trials.
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Affiliation(s)
- Helen Friedericke Bauer
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany,International Graduate School in Molecular Medicine Ulm, Ulm University, Ulm, Germany
| | | | - Jürgen Bockmann
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Tobias M. Boeckers
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany,Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Ulm Site, Ulm, Germany,*Correspondence: Tobias M. Boeckers,
| | - Michael Schön
- Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany,Michael Schön,
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Atanasova E, Arévalo AP, Graf I, Zhang R, Bockmann J, Lutz AK, Boeckers TM. Immune activation during pregnancy exacerbates ASD-related alterations in Shank3-deficient mice. Mol Autism 2023; 14:1. [PMID: 36604742 PMCID: PMC9814193 DOI: 10.1186/s13229-022-00532-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/11/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Autism spectrum disorder (ASD) is mainly characterized by deficits in social interaction and communication and repetitive behaviors. Known causes of ASD are mutations of certain risk genes like the postsynaptic protein SHANK3 and environmental factors including prenatal infections. METHODS To analyze the gene-environment interplay in ASD, we combined the Shank3Δ11-/- ASD mouse model with maternal immune activation (MIA) via an intraperitoneal injection of polyinosinic/polycytidylic acid (Poly I:C) on gestational day 12.5. The offspring of the injected dams was further analyzed for autistic-like behaviors and comorbidities followed by biochemical experiments with a focus on synaptic analysis. RESULTS We show that the two-hit mice exhibit excessive grooming and deficits in social behavior more prominently than the Shank3Δ11-/- mice. Interestingly, these behavioral changes were accompanied by an unexpected upregulation of postsynaptic density (PSD) proteins at excitatory synapses in striatum, hippocampus and prefrontal cortex. LIMITATIONS We found several PSD proteins to be increased in the two-hit mice; however, we can only speculate about possible pathways behind the worsening of the autistic phenotype in those mice. CONCLUSIONS With this study, we demonstrate that there is an interplay between genetic susceptibility and environmental factors defining the severity of ASD symptoms. Moreover, we show that a general misbalance of PSD proteins at excitatory synapses is linked to ASD symptoms, making this two-hit model a promising tool for the investigation of the complex pathophysiology of neurodevelopmental disorders.
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Affiliation(s)
- Ekaterina Atanasova
- grid.6582.90000 0004 1936 9748Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Andrea Pérez Arévalo
- grid.6582.90000 0004 1936 9748Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Ines Graf
- grid.6582.90000 0004 1936 9748Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Rong Zhang
- grid.11135.370000 0001 2256 9319Neuroscience Research Institute, Health Science Centre, Peking University, Peking, China
| | - Juergen Bockmann
- grid.6582.90000 0004 1936 9748Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Anne-Kathrin Lutz
- grid.6582.90000 0004 1936 9748Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany
| | - Tobias M. Boeckers
- grid.6582.90000 0004 1936 9748Institute for Anatomy and Cell Biology, Ulm University, Ulm, Germany ,grid.424247.30000 0004 0438 0426Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE), Ulm Site, Ulm, Germany
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48
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I DV, Proskokova TN. [Phelan-McDermid syndrome associated with a novel heterozygous mutation in the SHANK3 gene]. Zh Nevrol Psikhiatr Im S S Korsakova 2023; 123:124-128. [PMID: 37655421 DOI: 10.17116/jnevro2023123081124] [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] [Indexed: 09/02/2023]
Abstract
Phelan-McDermid syndrome (PMS) is a hereditary disorder associated with microdeletions of chromosome 22q13 or point mutations in SHANK3, characterized by mental and speech delays, intellectual disability, epilepsy and autism spectrum disorder. We describe a case PMS associated with a heterozygous mutation c.2486delC (p.Pro829fs) in SHANK3. The diagnostic pathway of a female patient with PMS took more than 7 years; the reason for treatment was the onset of epileptic seizures and impaired speech development. The existence of different types of rearrangements and genomic variations can explain the high clinical variability observed in individuals with PMS. Only molecular diagnosis can accurately diagnose individuals with PMS for follow-up and medical genetic counselling of families.
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Affiliation(s)
- D V I
- Khabarovsk Center for the Development of Psychology and Childhood «Psylogia», Khabarovsk, Russia
- Far-East State Medical University, Khabarovsk, Russia
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49
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García-Bravo C, Palacios-Ceña D, Huertas-Hoyas E, Pérez-Corrales J, Serrada-Tejeda S, Pérez-de-Heredia-Torres M, Gueita-Rodríguez J, Martínez-Piédrola RM. "Your Life Turns Upside Down": A Qualitative Study of the Experiences of Parents with Children Diagnosed with Phelan-McDermid Syndrome. CHILDREN (BASEL, SWITZERLAND) 2022; 10:children10010073. [PMID: 36670624 PMCID: PMC9856272 DOI: 10.3390/children10010073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
(1) Background: Parents of children with rare diseases experience great uncertainty and employ different strategies to care for their children and cope with the disease. The purpose of the present study was to describe the perspective of parents with children with Phelan McDermid Syndrome (PMS). (2) Methods: A non-probabilistic purposeful sampling was used to perform this qualitative descriptive study. Thirty-two parents with children with PMS were interviewed. In-depth interviews and research field notes were analyzed using an inductive thematic analysis. (3) Results: Four themes emerged from the data. "Understanding and accepting the disease" described how parents experienced their child's diagnosis and the lack of information. The second theme, called "Living day by day", highlighted the daily difficulties faced when caring for a child with PMS. The third theme, "Expectations versus reality", was based on the parents' expectations of parenthood and the reality they face. Expectations for the future are also included. Finally, "Pain and happiness" describes how parents alternate feelings of distress and suffering but also joy with what they learn from these experiences. (4) Conclusions: Health professionals can use these results to support parents.
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Affiliation(s)
- Cristina García-Bravo
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group in Evaluation and Assessment of Capacity, Functionality and Disability, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
| | - Domingo Palacios-Ceña
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group of Humanities and Qualitative Research in Health Science, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
- Correspondence: ; Tel.: +34-914888883
| | - Elisabet Huertas-Hoyas
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group in Evaluation and Assessment of Capacity, Functionality and Disability, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
| | - Jorge Pérez-Corrales
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group of Humanities and Qualitative Research in Health Science, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
| | - Sergio Serrada-Tejeda
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group in Evaluation and Assessment of Capacity, Functionality and Disability, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
| | - Marta Pérez-de-Heredia-Torres
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group in Evaluation and Assessment of Capacity, Functionality and Disability, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
| | - Javier Gueita-Rodríguez
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group of Humanities and Qualitative Research in Health Science, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
| | - Rosa Mª Martínez-Piédrola
- Department of Physical Therapy, Occupational Therapy, Physical Medicine and Rehabilitation, Research Group in Evaluation and Assessment of Capacity, Functionality and Disability, Universidad Rey Juan Carlos, 28922 Alcorcón, Spain
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Haploinsufficiency of Shank3 increases the orientation selectivity of V1 neurons. Sci Rep 2022; 12:22230. [PMID: 36564435 PMCID: PMC9789112 DOI: 10.1038/s41598-022-26402-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Autism spectrum disorder (ASD) is a neurodevelopmental disorder whose hallmarks are social deficits, language impairment, repetitive behaviors, and sensory alterations. It has been reported that patients with ASD show differential activity in cortical regions, for instance, increased neuronal activity in visual processing brain areas and atypical visual perception compared with healthy subjects. The causes of these alterations remain unclear, although many studies demonstrate that ASD has a strong genetic correlation. An example is Phelan-McDermid syndrome, caused by a deletion of the Shank3 gene in one allele of chromosome 22. However, the neuronal consequences relating to the haploinsufficiency of Shank3 in the brain remain unknown. Given that sensory abnormalities are often present along with the core symptoms of ASD, our goal was to study the tuning properties of the primary visual cortex to orientation and direction in awake, head-fixed Shank3+/- mice. We recorded neural activity in vivo in response to visual gratings in the primary visual cortex from a mouse model of ASD (Shank3+/- mice) using the genetically encoded calcium indicator GCaMP6f, imaged with a two-photon microscope through a cranial window. We found that Shank3+/- mice showed a higher proportion of neurons responsive to drifting gratings stimuli than wild-type mice. Shank3+/- mice also show increased responses to some specific stimuli. Furthermore, analyzing the distributions of neurons for the tuning width, we found that Shank3+/- mice have narrower tuning widths, which was corroborated by analyzing the orientation selectivity. Regarding this, Shank3+/- mice have a higher proportion of selective neurons, specifically neurons showing increased selectivity to orientation but not direction. Thus, the haploinsufficiency of Shank3 modified the neuronal response of the primary visual cortex.
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