Evidence map›Paper›PMID 31155484›Full record

ArticleCell stem cell2019

Direct Reprogramming of Human Neurons Identifies MARCKSL1 as a Pathogenic Mediator of Valproic Acid-Induced Teratogenicity.

Soham Chanda, Cheen Euong Ang, Qian Yi Lee, Michael Ghebrial, Daniel Haag, Yohei Shibuya, Marius Wernig, Thomas C Südhof

Open access · bronzeAbstract read
In one paragraph

Article in Cell stem cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
10.2field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 56 citations in OpenAlex.

  1. Valproate Exposure as anCNS & neurological disorders drug targets · 2025
    Pooled it
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  5. Presynaptic Trafficking of Glutamate Decarboxylase Isoforms Is Dispensable for Basal GABAergic Neurotransmission.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
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  11. Generation of human excitatory forebrain neurons by cooperative binding of proneural NGN2 and homeobox factor EMX1.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  12. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 1 country.

Soham ChandaDepartment of Molecular and Cellular Physiology and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA; Institute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA. Electronic address: soham.chanda@colostate.edu.
Cheen Euong AngInstitute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA.
Qian Yi LeeInstitute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA; Department of Bioengineering, Stanford University School of Medicine, Stanford, CA 94305, USA.
Michael GhebrialInstitute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Daniel HaagInstitute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Yohei ShibuyaInstitute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Marius WernigInstitute for Stem Cell Biology and Regenerative Medicine and Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA.
Thomas C SüdhofDepartment of Molecular and Cellular Physiology and Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305, USA. Electronic address: tcs1@stanford.edu.
Stanford University · USHoward Hughes Medical Institute · US

Funding

Multimodal analysis of high-risk psychosis mutations in induced neuronal cellsU19MH104172 · NIMH · STANFORD UNIVERSITY · PI WERNIG, MARIUS · 2014 to 2018
$9.7M
Induced neuronal cells: A novel tool to study neuropsychiatric diseasesR01MH092931 · NIMH · STANFORD UNIVERSITY · PI Thomas C. Sudhof, Marius Wernig · 2010 to 2026
$9.7M
FUNCTION OF NEUREXINSR37MH052804 · NIMH · UT SOUTHWESTERN MEDICAL CENTER · PI SUDHOF, THOMAS C. · 2000 to 2019
$9.3M
Function of NeurexinsR01MH052804 · NIMH · UNIVERSITY OF TEXAS SW MED CTR/DALLAS · PI SUDHOF, THOMAS C. · 1994 to 2024
$3.7M
Howard Hughes Medical InstituteNIMH NIH HHS R01 MH052804NIMH NIH HHS R01 MH092931NIMH NIH HHS R37 MH052804NIMH NIH HHS U19 MH104172
6 · The paper itself

Abstract

Human pluripotent stem cells can be rapidly converted into functional neurons by ectopic expression of proneural transcription factors. Here we show that directly reprogrammed neurons, despite their rapid maturation kinetics, can model teratogenic mechanisms that specifically affect early neurodevelopment. We delineated distinct phases of in vitro maturation during reprogramming of human neurons and assessed the cellular phenotypes of valproic acid (VPA), a teratogenic drug. VPA exposure caused chronic impairment of dendritic morphology and functional properties of developing neurons, but not those of mature neurons. These pathogenic effects were associated with VPA-mediated inhibition of the histone deacetylase (HDAC) and glycogen synthase kinase-3 (GSK-3) pathways, which caused transcriptional downregulation of many genes, including MARCKSL1, an actin-stabilizing protein essential for dendritic morphogenesis and synapse maturation during early neurodevelopment. Our findings identify a developmentally restricted pathogenic mechanism of VPA and establish the use of reprogrammed neurons as an effective platform for modeling teratogenic pathways.

Indexed as

AnimalsCalmodulin-Binding ProteinsCarcinogenesisCells, CulturedCellular ReprogrammingElectrical SynapsesGlycogen Synthase Kinase 3Histone DeacetylasesHumansMiceMicrofilament ProteinsNeurogenesisNeuronsPluripotent Stem CellsSignal TransductionTeratomaCalmodulin-Binding ProteinsGlycogen Synthase Kinase 3Histone DeacetylasesMARCKSL1 protein, humanMicrofilament ProteinsValproic Acidanti-epileptic drugautismcellular reprogramminggene expressionhuman neuronsMARCKSL1neurodevelopmentspina bifidavalproic acid

Identifiers

PMID31155484
PMCPMC6609489
OpenAlexW2947346449

What OpenQuestion holds

Textmetadata
LicenceTDM
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.