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https://www.readbyqxmd.com/read/28179641/shank-proteins-roles-at-the-synapse-and-in-autism-spectrum-disorder
#1
REVIEW
Patricia Monteiro, Guoping Feng
Several large-scale genomic studies have supported an association between cases of autism spectrum disorder and mutations in the genes SH3 and multiple ankyrin repeat domains protein 1 (SHANK1), SHANK2 and SHANK3, which encode a family of postsynaptic scaffolding proteins that are present at glutamatergic synapses in the CNS. An evaluation of human genetic data, as well as of in vitro and in vivo animal model data, may allow us to understand how disruption of SHANK scaffolding proteins affects the structure and function of neural circuits and alters behaviour...
March 2017: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/28139198/oxytocin-improves-behavioral-and-electrophysiological-deficits-in-a-novel-shank3-deficient-rat
#2
Hala Harony-Nicolas, Maya Kay, Johann du Hoffmann, Matthew E Klein, Ozlem Bozdagi-Gunal, Mohammed Riad, Nikolaos P Daskalakis, Sankalp Sonar, Pablo E Castillo, Patrick R Hof, Matthew L Shapiro, Mark G Baxter, Shlomo Wagner, Joseph D Buxbaum
Mutations in the synaptic gene SHANK3 lead to a neurodevelopmental disorder known as Phelan-McDermid syndrome (PMS). PMS is a relatively common monogenic and highly penetrant cause of autism spectrum disorder (ASD) and intellectual disability (ID), and frequently presents with attention deficits. The underlying neurobiology of PMS is not fully known and pharmacological treatments for core symptoms do not exist. Here, we report the production and characterization of a Shank3-deficient rat model of PMS, with a genetic alteration similar to a human SHANK3 mutation...
January 31, 2017: ELife
https://www.readbyqxmd.com/read/28130356/a-novel-human-camk2a-mutation-disrupts-dendritic-morphology-and-synaptic-transmission-and-causes-asd-related-behaviors
#3
Jason R Stephenson, Xiaohan Wang, Tyler L Perfitt, Walker P Parrish, Brian C Shonesy, Christian R Marks, Douglas P Mortlock, Terunaga Nakagawa, James S Sutcliffe, Roger J Colbran
: Characterizing the functional impact of novel mutations linked to autism spectrum disorder (ASD) provides a deeper mechanistic understanding of the underlying pathophysiological mechanisms. Here we show that a de novo Glu183 to Val (E183V) mutation in the CaMKIIα catalytic domain, identified in a proband diagnosed with ASD, decreases both CaMKIIα substrate phosphorylation and regulatory autophosphorylation, and that the mutated kinase acts in a dominant-negative manner to reduce CaMKIIα-WT autophosphorylation...
January 27, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28018439/phelan-mcdermid-syndrome-presenting-with-developmental-delays-and-facial-dysmorphisms
#4
Yoon-Myung Kim, In-Hee Choi, Jun Suk Kim, Ja Hye Kim, Ja Hyang Cho, Beom Hee Lee, Gu-Hwan Kim, Jin-Ho Choi, Eul-Ju Seo, Han-Wook Yoo
Phelan-McDermid syndrome is a rare genetic disorder caused by the terminal or interstitial deletion of the chromosome 22q13.3. Patients with this syndrome usually have global developmental delay, hypotonia, and speech delays. Several putative genes such as the SHANK3, RAB, RABL2B, and IB2 are responsible for the neurological features. This study describes the clinical features and outcomes of Korean patients with Phelan-McDermid syndrome. Two patients showing global developmental delay, hypotonia, and speech delay were diagnosed with Phelan-McDermid syndrome via chromosome analysis, fluorescent in situ hybridization, and multiplex ligation-dependent probe amplification analysis...
November 2016: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28003654/neurodevelopmental-disorders-a-painful-role-for-shank3
#5
Katherine Whalley
No abstract text is available yet for this article.
December 22, 2016: Nature Reviews. Neuroscience
https://www.readbyqxmd.com/read/28002633/vta-da-neuron-excitatory-synapses-in-shank3-%C3%AE-ex-4-9-mouse-line
#6
Bariselli Sebastiano, Bellone Camilla
SHANK3 proteins belong to the Shank/ProSAP family, which contain five-conserved domains - the ankyrin (ANK) repeated, the Src homology 3 (SH3), the PSD-95/Discs large/ZO-1 (PDZ), the proline-rich and the sterile alpha motif (SAM; Sheng and Kim, 2000). SHANK proteins are located at the postsynaptic density of excitatory synapses and indirectly link the metabotropic (mGluRs) and the ionotropic glutamate receptor (iGluRs: AMPARs, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors, and NMDARs, N-methyl-D-aspartate receptors) via different domains (Naisbitt et al...
December 21, 2016: Synapse
https://www.readbyqxmd.com/read/27916453/shank3-deficiency-impairs-heat-hyperalgesia-and-trpv1-signaling-in-primary-sensory-neurons
#7
Qingjian Han, Yong Ho Kim, Xiaoming Wang, Di Liu, Zhi-Jun Zhang, Alexandra L Bey, Mark Lay, Wonseok Chang, Temugin Berta, Yan Zhang, Yong-Hui Jiang, Ru-Rong Ji
Abnormal pain sensitivity is commonly associated with autism spectrum disorders (ASDs) and affects the life quality of ASD individuals. SHANK3 deficiency was implicated in ASD and pain dysregulation. Here, we report functional expression of SHANK3 in mouse dorsal root ganglion (DRG) sensory neurons and spinal cord presynaptic terminals. Homozygous and heterozygous Shank3 complete knockout (Δe4-22) results in impaired heat hyperalgesia in inflammatory and neuropathic pain. Specific deletion of Shank3 in Nav1...
December 21, 2016: Neuron
https://www.readbyqxmd.com/read/27891178/enrichment-of-small-pathogenic-deletions-at-chromosome-9p24-3-and-9q34-3-involving-dock8-kank1-ehmt1-genes-identified-by-using-high-resolution-oligonucleotide-single-nucleotide-polymorphism-array-analysis
#8
Jia-Chi Wang, Loretta W Mahon, Leslie P Ross, Arturo Anguiano, Renius Owen, Fatih Z Boyar
BACKGROUND: High-resolution oligo-SNP array allowed the identification of extremely small pathogenic deletions at numerous clinically relevant regions. In our clinical practice, we found that small pathogenic deletions were frequently encountered at chromosome 9p and 9q terminal regions. RESULTS: A review of 531 cases with reportable copy number changes on chromosome 9 revealed142 pathogenic copy number variants (CNVs): 104 losses, 31 gains, 7 complex chromosomal rearrangements...
2016: Molecular Cytogenetics
https://www.readbyqxmd.com/read/27876814/a-genome-wide-investigation-into-parent-of-origin-effects-in-autism-spectrum-disorder-identifies-previously-associated-genes-including-shank3
#9
Siobhan Connolly, Richard Anney, Louise Gallagher, Elizabeth A Heron
Autism spectrum disorder (ASD) is known to be a heritable neurodevelopmental disorder affecting more than 1% of the population but in the majority of ASD cases, the genetic cause has not been identified. Parent-of-origin effects have been highlighted as an important mechanism in the pathology of neurodevelopmental disorders such as Prader-Willi and Angelman syndrome, with individuals with these syndromes often exhibiting ASD symptoms. Consequently, systematic investigation of these effects in ASD is clearly an important line of investigation in elucidating the underlying genetic mechanisms...
February 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/27856360/sensitivity-to-isoflurane-anesthesia-increases-in-autism-spectrum-disorder-shank3-%C3%A2-c-mutant-mouse-model
#10
Changsheng Li, Michele Schaefer, Christy Gray, Ya Yang, Orion Furmanski, Sufang Liu, Paul Worley, C David Mintz, Feng Tao, Roger A Johns
Autism is a heterogeneous developmental disorder characterized by impaired social interaction, impaired communication skills, and restricted and repetitive behavior. The abnormal behaviors of these patients can make their anesthetic and perioperative management difficult. Evidence in the literature suggests that some patients with autism or specific autism spectrum disorders (ASD) exhibit altered responses to pain and to anesthesia or sedation. A genetic mouse model of one particular ASD, Phelan McDermid Syndrome, has been developed that has a Shank3 haplotype truncation (Shank3(+/Δc))...
November 14, 2016: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/27846046/clinical-and-molecular-characterization-of-three-genomic-rearrangements-at-chromosome-22q13-3-associated-with-autism-spectrum-disorder
#11
Chia-Hsiang Chen, Hsin-I Chen, Hsiao-Mei Liao, Yann-Jang Chen, Jye-Siung Fang, Kuei-Fang Lee, Susan Shur-Fen Gau
OBJECTIVES: Chromosome 22q13 is a hot region of genomic rearrangements that may result in deletion, duplication, and translocation, and that may lead to neurodevelopmental disorders in affected patients. MATERIALS AND METHODS: We carried out an array-based comparative genomic hybridization analysis to detect copy number variations (CNVs) of genomic DNA in patients with autism spectrum disorders (ASD) who were consecutively recruited into our molecular genetic study of ASD...
November 11, 2016: Psychiatric Genetics
https://www.readbyqxmd.com/read/27795858/actin-dependent-alterations-of-dendritic-spine-morphology-in-shankopathies
#12
REVIEW
Tasnuva Sarowar, Andreas M Grabrucker
Shank proteins (Shank1, Shank2, and Shank3) act as scaffolding molecules in the postsynaptic density of many excitatory neurons. Mutations in SHANK genes, in particular SHANK2 and SHANK3, lead to autism spectrum disorders (ASD) in both human and mouse models. Shank3 proteins are made of several domains-the Shank/ProSAP N-terminal (SPN) domain, ankyrin repeats, SH3 domain, PDZ domain, a proline-rich region, and the sterile alpha motif (SAM) domain. Via various binding partners of these domains, Shank3 is able to bind and interact with a wide range of proteins including modulators of small GTPases such as RICH2, a RhoGAP protein, and βPIX, a RhoGEF protein for Rac1 and Cdc42, actin binding proteins and actin modulators...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27790361/a-systematic-variant-annotation-approach-for-ranking-genes-associated-with-autism-spectrum-disorders
#13
Eric Larsen, Idan Menashe, Mark N Ziats, Wayne Pereanu, Alan Packer, Sharmila Banerjee-Basu
BACKGROUND: The search for genetic factors underlying autism spectrum disorders (ASD) has led to the identification of hundreds of genes containing thousands of variants that differ in mode of inheritance, effect size, frequency, and function. A major challenge involves assessing the collective evidence in an unbiased, systematic manner for their functional relevance. METHODS: Here, we describe a scoring algorithm for prioritization of candidate genes based on the cumulative strength of evidence for each ASD-associated variant cataloged in AutDB (also known as SFARI Gene)...
2016: Molecular Autism
https://www.readbyqxmd.com/read/27785461/immature-neurons-and-radial-glia-but-not-astrocytes-or-microglia-are-altered-in-adult-cntnap2-and-shank3-mice-models-of-autism
#14
Elise C Cope, Brandy A Briones, Adam T Brockett, Susana Martinez, Pierre-Antoine Vigneron, Maya Opendak, Samuel S-H Wang, Elizabeth Gould
Autism spectrum disorder (ASD) is often associated with cognitive deficits and excessive anxiety. Neuroimaging studies have shown atypical structure and neural connectivity in the hippocampus, medial prefrontal cortex (mPFC), and striatum, regions associated with cognitive function and anxiety regulation. Adult hippocampal neurogenesis is involved in many behaviors that are disrupted in ASD, including cognition, anxiety, and social behaviors. Additionally, glial cells, such as astrocytes and microglia, are important for modulating neural connectivity during development, and glial dysfunction has been hypothesized to be a key contributor to the development of ASD...
September 2016: ENeuro
https://www.readbyqxmd.com/read/27741506/clinical-and-genomic-evaluation-of-a-chinese-patient-with-a-novel-deletion-associated-with-phelan-mcdermid-syndrome
#15
Dongzhu Lei, Shaoyuan Li, Santasree Banerjee, Haoqing Zhang, Caiyun Li, Shuai Hou, Danjing Chen, Haiying Yan, Hanmei Li, Huan Huan Peng, Saijun Liu, Xinxin Zhang, Zhiyu Peng, Jian Wang, Huanming Yang, Hui Huang, Jing Wu
Phelan-McDermid syndrome is a neurodevelopmental disorder caused by the terminal deletion of chromosome 22 (22q13) followed by the loss of function of the SHANK3 gene. Various terminal deletions of chromosome 22q13 are associated with Phelan-McDermid with a spectrum of phenotypic severity. Here, we have done a clinical molecular study of a Chinese proband with Phelan-McDermid syndrome. Both the proband and her younger brother are associated with this syndrome while their parents are phenotypically normal. We used a karyotype in order to detect the genotype of the proband and her younger brother...
October 10, 2016: Oncotarget
https://www.readbyqxmd.com/read/27692350/-epigenetics-implication-in-autism-spectrum-disorders-a-review
#16
M Hamza, S Halayem, R Mrad, S Bourgou, F Charfi, A Belhadj
BACKGROUND: The etiology of autism spectrum disorders (ASD) is complex and multifactorial, and the roles of genetic and environmental factors in its emergence have been well documented. Current research tends to indicate that these two factors act in a synergistic manner. The processes underlying this interaction are still poorly known, but epigenetic modifications could be the mediator in the gene/environment interface. The epigenetic mechanisms have been implicated in susceptibility to stress and also in the pathogenesis of psychiatric disorders including depression and schizophrenia...
September 27, 2016: L'Encéphale
https://www.readbyqxmd.com/read/27592227/expression-of-shank3-in-the-temporal-neocortex-of-patients-with-intractable-temporal-epilepsy-and-epilepsy-rat-models
#17
Yanke Zhang, Baobing Gao, Yan Xiong, Fangshuo Zheng, Xin Xu, Yong Yang, Yida Hu, Xuefeng Wang
SH3 and multiple ankyrin (ANK) repeat domain 3 (SHANK3) is a synaptic scaffolding protein enriched in the postsynaptic density of excitatory synapses. SHANK3 plays an important role in the formation and maturation of excitatory synapses. In the brain, SHANK3 directly or indirectly interacts with various synaptic molecules including N-methyl-D-aspartate receptor, the metabotropic glutamate receptor (mGluR), and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor. Previous studies have shown that Autism spectrum disorder is a result of mutations of the main SHANK3 isoforms, which may be due to deficit in excitatory synaptic transmission and plasticity...
September 3, 2016: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/27581454/shank3-is-part-of-a-zinc-sensitive-signaling-system-that-regulates-excitatory-synaptic-strength
#18
Magali H Arons, Kevin Lee, Charlotte J Thynne, Sally A Kim, Claudia Schob, Stefan Kindler, Johanna M Montgomery, Craig C Garner
UNLABELLED: Shank3 is a multidomain scaffold protein localized to the postsynaptic density of excitatory synapses. Functional studies in vivo and in vitro support the concept that Shank3 is critical for synaptic plasticity and the trans-synaptic coupling between the reliability of presynaptic neurotransmitter release and postsynaptic responsiveness. However, how Shank3 regulates synaptic strength remains unclear. The C terminus of Shank3 contains a sterile alpha motif (SAM) domain that is essential for its postsynaptic localization and also binds zinc, thus raising the possibility that changing zinc levels modulate Shank3 function in dendritic spines...
August 31, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27577546/is-there-an-effect-of-intranasal-insulin-on-development-and-behaviour-in-phelan-mcdermid-syndrome-a-randomized-double-blind-placebo-controlled-trial
#19
Renée J Zwanenburg, Gianni Bocca, Selma A J Ruiter, Jan H Dillingh, Boudien C T Flapper, Edwin R van den Heuvel, Conny M A van Ravenswaaij-Arts
Phelan-McDermid syndrome (PMS) or 22q13.3 deletion syndrome is a rare neurodevelopmental disorder with at least 60 children and 35 adults diagnosed in the Netherlands. Clinical features are moderate to severe intellectual disability and behavioural problems in the autism spectrum. Other researchers had observed a beneficial effect of intranasal insulin on development and behaviour in a pilot study in six children with PMS. To validate this effect, we conducted a randomized, double-blind, placebo-controlled clinical trial using a stepped-wedge design...
December 2016: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/27562614/developmental-profiling-of-asd-related-shank3-transcripts-and-their-differential-regulation-by-valproic-acid-in-zebrafish
#20
Chun-Xue Liu, Xiao-Lan Peng, Chun-Chun Hu, Chun-Yang Li, Qiang Li, Xiu Xu
SHANK3 is a scaffolding protein that binds to various synaptic proteins at the postsynaptic density (PSD) of excitatory glutamatergic synapses. SHANK3 is not only strongly implicated in autism spectrum disorders (ASD) but also plays a critical role in human Phelan-McDermid syndrome (22q13.3 deletion syndrome). Accumulated experimental evidence demonstrates that the zebrafish model system is useful for studying the functions of ASD-related gene during early development. However, many basic features of shank3 transcript expression in zebrafish remain poorly understood...
November 2016: Development Genes and Evolution
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