Evidence map›Paper›PMID 26603386›Full record

ArticleMolecular brain2015

Human induced pluripotent stem cell derived neurons as a model for Williams-Beuren syndrome.

Shahryar Khattak, Elise Brimble, Wenbo Zhang, Kirill Zaslavsky, Emma Strong, P Joel Ross, Jason Hendry, Seema Mital, Michael W Salter, Lucy R Osborne and 1 more

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Modelling phenotypes, variants and pathomechanisms of syndromic diseases in different systems.Medizinische Genetik : Mitteilungsblatt des Berufsverbandes Medizinische Genetik e.V · 2024
    Article
  10. Hyperacusis in the AdultInternational journal of molecular sciences · 2023
    Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Williams syndrome.Nature reviews. Disease primers · 2021
    Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Shahryar KhattakProgram in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, ON, Canada. shahryar.khattak@crt-dresden.de.
Elise BrimbleDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada. ebrimble@bu.edu.
Wenbo ZhangProgram in Neurosciences & Mental Health, Hospital for Sick Children, Toronto, ON, Canada. wenbo.zhang@utoronto.ca.
Kirill ZaslavskyProgram in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, ON, Canada. kirill.zaslavsky@mail.utoronto.ca.
Emma StrongDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada. emma.strong@mail.utoronto.ca.
P Joel RossProgram in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, ON, Canada. pjoelross@gmail.com.
Jason HendryProgram in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, ON, Canada. jason.hendry@mail.utoronto.ca.
Seema MitalDepartment of Pediatrics, Hospital for Sick Children, Toronto, ON, Canada. seema.mital@Sickkids.ca.
Michael W SalterProgram in Neurosciences & Mental Health, Hospital for Sick Children, Toronto, ON, Canada. michael.salter@Sickkids.ca.
Lucy R OsborneDepartment of Molecular Genetics, University of Toronto, Toronto, ON, Canada. lucy.osborne@utoronto.ca.
James EllisProgram in Developmental and Stem Cell Biology, Hospital for Sick Children, Toronto, ON, Canada. jellis@sickkids.ca.
University of Toronto · CAHospital for Sick Children · CASickKids Foundation · CASt. Michael's Hospital · CA

Funding

Canadian Institutes of Health Research MOP-126146Canadian Institutes of Health Research MOP-77720
6 · The paper itself

Abstract

backgroundWilliams-Beuren Syndrome (WBS) is caused by the microdeletion of approximately 25 genes on chromosome 7q11.23, and is characterized by a spectrum of cognitive and behavioural features.

resultsWe generated cortical neurons from a WBS individual and unaffected (WT) control by directed differentiation of induced pluripotent stem cells (iPSCs). Single cell mRNA analyses and immunostaining demonstrated very efficient production of differentiated cells expressing markers of mature neurons of mixed subtypes and from multiple cortical layers. We found that there was a profound alteration in action potentials, with significantly prolonged WBS repolarization times and a WBS deficit in voltage-activated K(+) currents. Miniature excitatory synaptic currents were normal, indicating that unitary excitatory synaptic transmission was not altered. Gene expression profiling identified 136 negatively enriched gene sets in WBS compared to WT neurons including gene sets involved in neurotransmitter receptor activity, synaptic assembly, and potassium channel complexes.

conclusionsOur findings provide insight into gene dysregulation and electrophysiological defects in WBS patient neurons.

Indexed as

Models, BiologicalAction PotentialsCell DifferentiationCell ShapeDown-RegulationGene Expression ProfilingHemizygoteHumansInduced Pluripotent Stem CellsNeuronsPhenotypePotassium ChannelsReal-Time Polymerase Chain ReactionReproducibility of ResultsWilliams SyndromePotassium Channels

Identifiers

PMID26603386
PMCPMC4657290
OpenAlexW2174005269

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.