Scherer, Stephen W.
University of Toronto
H-index: 157
North America-Canada
Description
Scherer, Stephen W., With an exceptional h-index of 157 and a recent h-index of 97 (since 2020), a distinguished researcher at University of Toronto, specializes in the field of ORCID: 0000-0002-8326-1999, Web of Science ResearcherID: B-3785-2013.
His recent articles reflect a diverse array of research interests and contributions to the field:
Genome-wide enhancer-associated tandem repeats are expanded in cardiomyopathy
Increased burden of rare protein‐truncating variants in constrained, brain‐specific and synaptic genes in extremely impulsively violent males with antisocial personality disorder
Disruption of the autism-associated gene SCN2A alters synaptic development and neuronal signaling in patient iPSC-glutamatergic neurons
Population structure and history of North Atlantic Blue whales (Balaenoptera musculus musculus) inferred from whole genome sequence analysis
Allelic heterogeneity and abnormal vesicle recycling in PLAA-related neurodevelopmental disorders
Molecular testing in autism spectrum disorder
Comprehensive whole-genome sequence analyses provide insights into the genomic architecture of cerebral palsy
The Phenotypic variability of 16p11. 2 distal BP2–BP3 deletion in a transgenerational family and in neurodevelopmentally ascertained samples
Professor Information
University | University of Toronto |
---|---|
Position | The Hospital for Sick Children, Peter Gilgan Centre for Research and Learning (PGCRL), 686 Bay St |
Citations(all) | 124846 |
Citations(since 2020) | 44411 |
Cited By | 98468 |
hIndex(all) | 157 |
hIndex(since 2020) | 97 |
i10Index(all) | 597 |
i10Index(since 2020) | 439 |
University Profile Page | University of Toronto |
Research & Interests List
ORCID: 0000-0002-8326-1999
Web of Science ResearcherID: B-3785-2013
Top articles of Scherer, Stephen W.
Genome-wide enhancer-associated tandem repeats are expanded in cardiomyopathy
BackgroundCardiomyopathy is a clinically and genetically heterogeneous heart condition that can lead to heart failure and sudden cardiac death in childhood. While it has a strong genetic basis, the genetic aetiology for over 50% of cardiomyopathy cases remains unknown.MethodsIn this study, we analyse the characteristics of tandem repeats from genome sequence data of unrelated individuals diagnosed with cardiomyopathy from Canada and the United Kingdom (n = 1216) and compare them to those found in the general population. We perform burden analysis to identify genomic and epigenomic features that are impacted by rare tandem repeat expansions (TREs), and enrichment analysis to identify functional pathways that are involved in the TRE-associated genes in cardiomyopathy. We use Oxford Nanopore targeted long-read sequencing to validate repeat size and methylation status of one of the most …
Authors
Aleksandra Mitina,Mahreen Khan,Robert Lesurf,Yue Yin,Worrawat Engchuan,Omar Hamdan,Giovanna Pellecchia,Brett Trost,Ian Backstrom,Keyi Guo,Linda M Pallotto,Phoenix Hoi Lam Doong,Zhuozhi Wang,Thomas Nalpathamkalam,Bhooma Thiruvahindrapuram,Tanya Papaz,Christopher E Pearson,Jiannis Ragoussis,Padmaja Subbarao,Meghan B Azad,Stuart E Turvey,Piushkumar Mandhane,Theo J Moraes,Elinor Simons,Stephen W Scherer,Jane Lougheed,Tapas Mondal,John Smythe,Luis Altamirano-Diaz,Erwin Oechslin,Seema Mital,Ryan KC Yuen
Journal
EBioMedicine
Published Date
2024/2/26
Increased burden of rare protein‐truncating variants in constrained, brain‐specific and synaptic genes in extremely impulsively violent males with antisocial personality disorder
The genetic correlates of extreme impulsive violence are poorly understood, and there have been few studies that have characterized a large group of affected individuals both clinically and genetically. We performed whole exome sequencing (WES) in 290 males with the life‐course‐persistent, extremely impulsively violent form of antisocial personality disorder (APD) and analyzed the spectrum of rare protein‐truncating variants (rPTVs). Comparisons were made with 314 male controls and publicly available genotype data. Functional annotation tools were used for biological interpretation. Participants were significantly more likely to harbor rPTVs in genes that are intolerant to loss‐of‐function variants (odds ratio [OR] 2.06; p < 0.001), specifically expressed in brain (OR 2.80; p = 0.036) and enriched for those involved in neurotransmitter transport and synaptic processes. In 60 individuals (20%), we identified …
Authors
Dita Mušálková,Anna Přistoupilová,Ivana Jedličková,Hana Hartmannová,Helena Trešlová,Lenka Nosková,Kateřina Hodaňová,Petra Bittmanová,Viktor Stránecký,Václav Jiřička,Michaela Langmajerová,Marc Woodbury‐Smith,Mehdi Zarrei,Brett Trost,Stephen W Scherer,Anthony J Bleyer,Jan Vevera,Stanislav Kmoch
Journal
Genes, Brain and Behavior
Published Date
2024/2
Disruption of the autism-associated gene SCN2A alters synaptic development and neuronal signaling in patient iPSC-glutamatergic neurons
SCN2A is an autism spectrum disorder (ASD) risk gene and encodes a voltage-gated sodium channel. However, the impact of ASD-associated SCN2A de novo variants on human neuron development is unknown. We studied SCN2A using isogenic SCN2A–/– induced pluripotent stem cells (iPSCs), and patient-derived iPSCs harboring a de novo R607* truncating variant. We used Neurogenin2 to generate excitatory (glutamatergic) neurons and found that SCN2A+/R607* and SCN2A–/– neurons displayed a reduction in synapse formation and excitatory synaptic activity. We found differential impact on actional potential dynamics and neuronal excitability that reveals a loss-of-function effect of the R607* variant. Our study reveals that a de novo truncating SCN2A variant impairs the development of human neuronal function.
Authors
Chad O Brown,Jarryll A Uy,Nadeem Murtaza,Elyse Rosa,Alexandria Alfonso,Biren M Dave,Savannah Kilpatrick,Annie A Cheng,Sean H White,Stephen W Scherer,Karun K Singh
Journal
Frontiers in Cellular Neuroscience
Published Date
2024/1/16
Population structure and history of North Atlantic Blue whales (Balaenoptera musculus musculus) inferred from whole genome sequence analysis
Knowledge of genetic diversity and structure is essential for developing conservation strategies for endangered species. Blue whales were hunted to near extinction in the mid-twentieth century. Not-withstanding almost 380,000 animals killed globally, much remains unknown about their population structure and migration patterns. Herein, we use whole genome sequencing to elucidate the poorly understood population genetics of North Atlantic (NA) blue whales. We generated a de novo genome assembly for a NA blue whale to analyze 19 other whole genomic sequences and 31 complete mitochondrial genomes. Present-day and historical samples (earliest from 1876) from the Atlantic and Antarctic Oceans were included to understand the impact of whaling on the genetic diversity of this species. We found low but statistically significant population structuring and high genetic diversity. Demographic modeling …
Authors
Sushma Jossey,Oliver Haddrath,Livia Loureiro,Jason T Weir,Burton K Lim,Jacqueline Miller,Stephen W Scherer,Anders Goksøyr,Roger Lille-Langøy,Kit M Kovacs,Christian Lydersen,Heli Routti,Mark D Engstrom
Journal
Conservation Genetics
Published Date
2024/1/6
Allelic heterogeneity and abnormal vesicle recycling in PLAA-related neurodevelopmental disorders
The human PLAA gene encodes Phospholipase-A2-Activating-Protein (PLAA) involved in trafficking of membrane proteins. Through its PUL domain (PLAP, Ufd3p, and Lub1p), PLAA interacts with p97/VCP modulating synaptic vesicles recycling. Although few families carrying biallelic PLAA variants were reported with progressive neurodegeneration, consequences of monoallelic PLAA variants have not been elucidated. Using exome or genome sequencing we identified PLAA de-novo missense variants, affecting conserved residues within the PUL domain, in children affected with neurodevelopmental disorders (NDDs), including psychomotor regression, intellectual disability (ID) and autism spectrum disorders (ASDs). Computational and in-vitro studies of the identified variants revealed abnormal chain arrangements at C-terminal and reduced PLAA-p97/VCP interaction, respectively. These findings expand both allelic and phenotypic heterogeneity associated to PLAA-related neurological disorders, highlighting perturbed vesicle recycling as a potential disease mechanism in NDDs due to genetic defects of PLAA.
Authors
Michele Iacomino,Nadia Houerbi,Sara Fortuna,Jennifer Howe,Shan Li,Giovanna Scorrano,Antonella Riva,Kai-Wen Cheng,Mandy Steiman,Iskra Peltekova,Afiqah Yusuf,Simona Baldassari,Serena Tamburro,Paolo Scudieri,Ilaria Musante,Armando Di Ludovico,Sara Guerrisi,Ganna Balagura,Antonio Corsello,Stephanie Efthymiou,David Murphy,Paolo Uva,Alberto Verrotti,Chiara Fiorillo,Maurizio Delvecchio,Andrea Accogli,Mayada Elsabbagh,Henry Houlden,Stephen W Scherer,Pasquale Striano,Federico Zara,Tsui-Fen Chou,Vincenzo Salpietro
Journal
Frontiers in Molecular Neuroscience
Published Date
2024/4/8
Molecular testing in autism spectrum disorder
Autism spectrum disorder (ASD) encompasses a heterogeneous group of conditions diagnosed by clinicians solely on the basis of behavioral assessments that reveal social communication deficits and repetitive behaviors. Individuals with ASD are increasingly being seen in clinical genetics. More than 100 genetic disorders that can exhibit features of ASD and dozens of rare susceptibility genes and copy number variation (CNV) loci have been identified, which combined, depending on the study, can facilitate a molecular diagnosis in ~5%–40% of ASD cases. So far, none of the known CNVs or genes account for more than 1% of ASD cases, and often different pathogenic variants are found within the same family. The likelihood of a genetic finding in ASD increases with the complexity of the phenotype (e.g., idiopathic or related to a specific genetic disorder or syndrome, with or without intellectual disability) and the …
Authors
Bridget A Fernandez,Christian R Marshall,Jacob AS Vorstman,Stephen W Scherer
Published Date
2024/1/1
Comprehensive whole-genome sequence analyses provide insights into the genomic architecture of cerebral palsy
We performed whole-genome sequencing (WGS) in 327 children with cerebral palsy (CP) and their biological parents. We classified 37 of 327 (11.3%) children as having pathogenic/likely pathogenic (P/LP) variants and 58 of 327 (17.7%) as having variants of uncertain significance. Multiple classes of P/LP variants included single-nucleotide variants (SNVs)/indels (6.7%), copy number variations (3.4%) and mitochondrial mutations (1.5%). The COL4A1 gene had the most P/LP SNVs. We also analyzed two pediatric control cohorts (n = 203 trios and n = 89 sib-pair families) to provide a baseline for de novo mutation rates and genetic burden analyses, the latter of which demonstrated associations between de novo deleterious variants and genes related to the nervous system. An enrichment analysis revealed previously undescribed plausible candidate CP genes (SMOC1, KDM5B, BCL11A and CYP51A1). A …
Authors
Darcy L Fehlings,Mehdi Zarrei,Worrawat Engchuan,Neal Sondheimer,Bhooma Thiruvahindrapuram,Jeffrey R MacDonald,Edward J Higginbotham,Ritesh Thapa,Tarannum Behlim,Sabrina Aimola,Lauren Switzer,Pamela Ng,John Wei,Prakroothi S Danthi,Giovanna Pellecchia,Sylvia Lamoureux,Karen Ho,Sergio L Pereira,Jill de Rijke,Wilson WL Sung,Alireza Mowjoodi,Jennifer L Howe,Thomas Nalpathamkalam,Roozbeh Manshaei,Siavash Ghaffari,Joseph Whitney,Rohan V Patel,Omar Hamdan,Rulan Shaath,Brett Trost,Shannon Knights,Dawa Samdup,Anna McCormick,Carolyn Hunt,Adam Kirton,Anne Kawamura,Ronit Mesterman,Jan Willem Gorter,Nomazulu Dlamini,Daniele Merico,Murto Hilali,Kyle Hirschfeld,Kritika Grover,Nelson X Bautista,Kara Han,Christian R Marshall,Ryan KC Yuen,Padmaja Subbarao,Meghan B Azad,Stuart E Turvey,Piush Mandhane,Theo J Moraes,Elinor Simons,George Maxwell,Michael Shevell,Gregory Costain,Jacques L Michaud,Fadi F Hamdan,Julie Gauthier,Kevin Uguen,Dimitri J Stavropoulos,Richard F Wintle,Maryam Oskoui,Stephen W Scherer
Journal
Nature Genetics
Published Date
2024/3/29
The Phenotypic variability of 16p11. 2 distal BP2–BP3 deletion in a transgenerational family and in neurodevelopmentally ascertained samples
BackgroundWe present genomic and phenotypic findings of a transgenerational family consisting of three male offspring, each with a maternally inherited distal 220 kb deletion at locus 16p11.2 (BP2–BP3). Genomic analysis of all family members was prompted by a diagnosis of autism spectrum disorder (ASD) in the eldest child, who also presented with a low body mass index.MethodsAll male offspring underwent extensive neuropsychiatric evaluation. Both parents were also assessed for social functioning and cognition. The family underwent whole-genome sequencing. Further data curation was undertaken from samples ascertained for neurodevelopmental disorders and congenital abnormalities.ResultsOn medical examination, both the second and third-born male offspring presented with obesity. The second-born male offspring met research diagnostic criteria for ASD at 8 years of age and presented with …
Authors
Marc Woodbury-Smith,Lia D’Abate,Dimitri J Stavropoulos,Jennifer Howe,Irene Drmic,Ny Hoang,Mehdi Zarrei,Brett Trost,Alana Iaboni,Evdokia Anagnostou,Stephen W Scherer
Journal
Journal of Medical Genetics
Published Date
2023/12/1
Professor FAQs
What is Scherer, Stephen W.'s h-index at University of Toronto?
The h-index of Scherer, Stephen W. has been 97 since 2020 and 157 in total.
What are Scherer, Stephen W.'s top articles?
The articles with the titles of
Genome-wide enhancer-associated tandem repeats are expanded in cardiomyopathy
Increased burden of rare protein‐truncating variants in constrained, brain‐specific and synaptic genes in extremely impulsively violent males with antisocial personality disorder
Disruption of the autism-associated gene SCN2A alters synaptic development and neuronal signaling in patient iPSC-glutamatergic neurons
Population structure and history of North Atlantic Blue whales (Balaenoptera musculus musculus) inferred from whole genome sequence analysis
Allelic heterogeneity and abnormal vesicle recycling in PLAA-related neurodevelopmental disorders
Molecular testing in autism spectrum disorder
Comprehensive whole-genome sequence analyses provide insights into the genomic architecture of cerebral palsy
The Phenotypic variability of 16p11. 2 distal BP2–BP3 deletion in a transgenerational family and in neurodevelopmentally ascertained samples
...
are the top articles of Scherer, Stephen W. at University of Toronto.
What are Scherer, Stephen W.'s research interests?
The research interests of Scherer, Stephen W. are: ORCID: 0000-0002-8326-1999, Web of Science ResearcherID: B-3785-2013
What is Scherer, Stephen W.'s total number of citations?
Scherer, Stephen W. has 124,846 citations in total.
What are the co-authors of Scherer, Stephen W.?
The co-authors of Scherer, Stephen W. are Christian R. Marshall, John Vincent, Berge Minassian, Bridget Fernandez, Dalila Pinto, Lars Feuk.