Cited by 237Neurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene RegulationGenetics and Neurodevelopmental Disorders

Evolutionarily Dynamic Alternative Splicing of GPR56 Regulates Regional Cerebral Cortical Patterning

Open access
Bae, Byoung-Il, Tietjen, Ian, Atabay, Kutay D., Evrony, Gilad D., Johnson, Matthew B., Asare, Ebenezer, Wang, Peter P., Murayama, Ayako Y. +12 more·2014·Science

Abstract

Development of surface folds of the human brain is controlled in sections. [Also see Perspective by Rash and Rakic ]

Integrity signals

Registry

Crossref · 10.1126/science.1244392

Cites

40 of 40 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Claims the paper makes

0 of 14 cited sources checked · 0 supported · 0 flagged

  • Findingown data

    Dominant-negative RFX abrogates normal but not mutant e1m promoter activity in E13.5 mouse cortical cultures.

    “Dominant-negative RFX abrogates normal, but not mutant, e1m promoter activity on embryonic day 13.5 (E13.5) in mouse cortical cultures”
    Quote in the paperSubstantial claim
  • Findingown data

    The two Irish-American families share the mutation on one chromosomal haplotype, indicating a common founder.

    “The two Irish-American families carry the mutation on the same chromosomal haplotype, which reflects a common founder.”
    Quote in the paperNot a substantial claim
  • Findingown data

    The mutated element is located less than 150 base pairs upstream of the transcriptional start site of noncoding exon 1m of GPR56.

    “The element is located <150 bp upstream of the transcriptional start site of noncoding exon 1m (e1m) of GPR56”
    Quote in the paperSubstantial claim
  • Findingown data

    The same 23-kb construct containing the 15-bp deletion drives expression in medial but not lateral cortex or lateral ganglionic eminence.

    “In contrast, the 23-kb construct containing the 15-bp deletion drives expression in medial, but not lateral, cortex or lateral ganglionic eminence”
    Quote in the paperSubstantial claim
  • Findingown data

    Yeast one-hybrid screening with the human cis-regulatory element as bait identified multiple yeast colonies encoding members of the RFX transcription factor family.

    “we performed yeast one-hybrid (Y1H) screening of a mouse forebrain cDNA library with the human cis-regulatory element as bait and obtained multiple yeast colonies encoding members of the regulatory factor X (Rfx) transcription factor family”
    Quote in the paperSubstantial claim
  • May combine two claims. 16
  • May combine two claims.

    Findingown data

    The noncoding first exons of GPR56 have distinct expression profiles; e1m is the most robustly transcribed first exon in fetal human brain, and several other alternative transcripts are also expressed in fetal and adult brain.

    “The diverse noncoding first exons have distinct expression profiles, with e1m being the most robustly transcribed first exon in fetal human brain but with several other alternative transcripts also expressed in fetal and adult brain”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The deletion is heterozygous in unaffected parents and absent from thousands of control chromosomes.

    “The deletion is heterozygous in parents of the affected individuals, who manifest no obvious clinical signs, and is absent from thousands of control chromosomes in the Single-Nucleotide Polymorphism Database and 1000 Genomes database.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    RFX1 and RFX3 bind the normal element in vitro, and the 15-bp deletion decreases binding by 60 to 70%.

    “RFX1 and RFX3 bind the normal element in vitro, with binding decreased 60 to 70% by the 15-bp deletion”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The Turkish family carries the same deletion on a distinct haplotype, indicating that the mutation arose independently.

    “It is noteworthy that the Turkish family carries the same deletion on a distinct haplotype, which indicates that the mutation arose independently”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingcitation

    RFX and GPR56 expression patterns are correlated, with RFX3 and RFX7 most prominent in human ventrolateral prefrontal cortex, the region affected in perisylvian polymicrogyria.

    “RFX and GPR56 expression patterns are correlated (fig. S5, A and B) (15), with RFX3 and RFX7 most prominent in human ventrolateral prefrontal cortex, the region affected in perisylvian polymicrogyria”
    Quote in the paperSubstantial claim0 of 1 sources checked
    • cites [15] Kang HJ Nature 478 483 489 2011 22031440 PMC3566780 source

      Not checked in the free run.

  • May combine two claims.

    Findingown data

    Another noncoding GPR56 exon, exon 2, is present only in primates and derives from a primate-specific Alu insertion.

    “Another noncoding GPR56 exon (exon 2), present only in primates, derives from a primate-specific Alu insertion”
    Quote in the paperNot a substantial claim
  • May combine two claims.

    Findingown data

    Gpr56 knockout mice show fewer PH3-positive mitotic progenitor cells and TBR2-positive intermediate progenitors than wild-type mice in the neocortex at E14.5.

    “Gpr56 knockout mice show fewer phosphohistone H3 (PH3)–positive mitotic progenitor cells and TBR2-positive intermediate progenitors than wild-type mice in the neocortex at E14.5.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The cis-regulatory element upstream of GPR56 e1m is present in genomes of all placental mammals but absent from monotremes, marsupials, and non-mammals.

    “The cis-regulatory element upstream of GPR56 e1m is found in genomes of all placental mammals, but not monotremes, marsupials, or non-mammals”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingown data

    The human e1m promoter has a variety of deletions and single-nucleotide variants relative to the mouse sequence and drives much more limited expression in rostral-lateral cortex.

    “the corresponding human e1m promoter has a variety of deletions and single-nucleotide variants, relative to the mouse sequence (fig. S6A), and drives much more limited expression in rostral-lateral cortex”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Findingcitation

    GPR56 expression in developing human and marmoset neocortex is highest in the ventricular zone and in the outer subventricular zone, which is expanded in mammals with larger brains.

    “GPR56 expression in developing human and marmoset neocortex is highest in the ventricular zone, as well as in the outer subventricular zone, which is expanded in mammals with larger brains”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationown data

    The cis-regulatory element upstream of e1m drives GPR56 expression in perisylvian and lateral cortex, and its disruption with impaired e1m expression causes perisylvian malformation.

    “These data suggest that the cis-regulatory element upstream of e1m drives GPR56 expression in the perisylvian and lateral cortex, whereas disruption of the element, with consequent impairment of e1m expression, causes the perisylvian malformation.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Premisecitation

    GPR56 encodes an adhesion heterotrimeric G protein-coupled receptor that is highly expressed in cortical progenitors and binds extracellular matrix proteins.

    “GPR56 encodes an adhesion heterotrimeric guanine nucleotide–binding protein (G protein)–coupled receptor that is highly expressed in cortical progenitors (7, 16) and binds extracellular matrix proteins (17).”
    Quote in the paperSubstantial claim0 of 3 sources checked
    • cites [7] Piao X Science 303 2033 2036 2004 15044805 source

      Not checked in the free run.

    • cites [16] Li S J Neurosci 28 5817 5826 2008 18509043 PMC2504715 source

      Not checked in the free run.

    • cites [17] Luo R Proc Natl Acad Sci USA 108 12925 12930 2011 21768377 PMC3150909 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Loss of GPR56 disrupts radial glia and causes breaches in the pial basement membrane, through which some neurons over-migrate.

    “Loss of GPR56 disrupts radial glia and causes breaches in the pial basement membrane, through which some neurons over-migrate (9, 16).”
    Quote in the paperSubstantial claim0 of 2 sources checked
    • cites [9] Bahi-Buisson N Brain 133 3194 3209 2010 20929962 source

      Not checked in the free run.

    • cites [16] Li S J Neurosci 28 5817 5826 2008 18509043 PMC2504715 source

      Not checked in the free run.

  • May combine two claims.

    Premisecitation

    Postmortem analysis of a human with biallelic GPR56 coding mutations showed a very thin cortex, suggesting potential roles of GPR56 in neurogenesis.

    “Postmortem analysis of a human with biallelic GPR56 coding mutations showed a very thin cortex, which suggested potential roles of GPR56 in neurogenesis as well (9).”
    Quote in the paperNot a substantial claim0 of 1 sources checked
    • cites [9] Bahi-Buisson N Brain 133 3194 3209 2010 20929962 source

      Not checked in the free run.

  • May combine two claims.

    Interpretationreasoning

    The elaboration of the GPR56 locus in gyrencephalic mammals, especially humans, to produce many alternative splice forms with diverse expression patterns presents GPR56 as a key target that could influence the dramatic changes in shape and folding that characterize the forebrain of many mammals.

    “The elaboration of the GPR56 locus in gyrencephalic mammals, and especially humans, to produce many alternative splice forms with diverse expression patterns presents GPR56 as a key target that could influence the dramatic changes in shape and folding that characterize the forebrain of many mammals.”
    Quote in the paperSubstantial claim
  • May combine two claims.

    Interpretationreasoning

    GPR56 acquired many noncoding upstream exons and generated alternative splice forms with distinct expression patterns in the lineage leading to humans, and transposable element insertion contributed to this diversity.

    “Thus, GPR56 acquired many noncoding upstream exons and generated alternative splice forms with distinct expression patterns (fig. S2, B and D), in the lineage leading to humans. Transposable element insertion played a role in generating this diversity.”
    Quote in the paperSubstantial claim
16 of 16
  • The paper relies on this without support.

    The mechanisms of cortical gyrification and the formation of specialized cortical regions are poorly understood.

    “the genetic and evolutionary mechanisms of cortical gyrification are poorly understood”
    “it is unsolved how these cortical regions form and how human cortical regions evolved from those of prehuman ancestors.”
  • The paper relies on this without support.

    Abnormal gyrification invariably indicates abnormal cortical development.

    “Abnormal gyrification, such as polymicrogyria (too many small gyri), invariably signals abnormal cortical development”
  • The paper relies on this without support.

    Placental and nonplacental mammals diverged 85 to 100 million years ago.

    “diverged 85 to 100 million years ago”
3 of 3

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Extensive variation in cis-regulation of GPR56 is observed due to expansion of number of transcriptional start sites in human GPR56 (17) compared to mouse Gpr56 (5).

    “For example, extensive variation in the cis-regulation of GPR56, a gene that promotes neural progenitor proliferation (Bae et al., 2014), is observed due to the expansion of the number of transcriptional start sites present in human GPR56 (17 start sites) as compared to its mouse ortholog Gpr56 (5 start sites; Figure 7A).”
  • Human-specific expansion, deletion, and de novo emergence of regulatory elements are observed.

    “In addition to evolutionary changes in transcription factor binding sites, human-specific expansion, deletion, and de novo emergence of regulatory elements are also observed (Bae et al., 2014).”
  • The cis-element of human alternative transcriptional start site E1m can drive expression of a reporter gene in radial glia cells throughout embryonic neocortex of transgenic mouse.

    “The cis-element of one of these human alternative transcriptional start sites (E1m) can drive expression of a reporter gene in RG cells throughout the embryonic neocortex of a transgenic mouse (Figure 7B).”
  • A 15 base pair deletion of E1m cis-element caused perysylvian microgyria in humans and affected rostro-lateral GPR56 expression in mouse.

    “Moreover, a 15 base pair deletion of the E1m cis-element caused perysylvian microgyria in humans and affected rostro-lateral GPR56 expression in mouse (Figures 7C and D).”
  • Further experiments with sequences from other mammals with prominent sylvian fissure and gyrencephalic brain recapitulated this expression pattern, suggesting GPR56 was important for evolutionary expansion of perisylvian neocortex.

    “Further experiments with sequences found in other mammals with a prominent sylvian fissure and gyrencephalic brain recapitulated this pattern of expression, suggesting that GPR56 was important for the evolutionary expansion of the perisylvian neocortex, a region involved in the processing of language and speech and other higher-order cognitive functions.”

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Authors
Bae, B.-I., Tietjen, I., Atabay, K. D., Evrony, G. D., Johnson, M. B., Asare, E., Wang, P. P., Murayama, A. Y., Im, K., Lisgo, S. N., Overman, L., Šestan, N., Chang, B. S., Barkovich, A. J., Grant, P. E., Topçu, M., Politsky, J., Okano, H., Piao, X., & Walsh, C. A.
Affiliations
  • Broad Institute (US)
  • Keio University (JP)
  • Boston Children's Hospital (US)
  • Centre for Life (GB)
  • Yale University (US)
  • Beth Israel Deaconess Medical Center (US)
  • University of California, San Francisco (US)
  • Hacettepe University (TR)
  • Augusta University (US)
Corresponding author
  • Bae, Byoung-Il
  • Tietjen, Ian
  • Politsky, Jeffrey
  • Walsh, Christopher A.
Venue
Science
Published
2014-02-14
Volume
343
Issue
6172
Pages
764-768
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1979208523
Cited by
229
References
40
Citations by year
2026: 6 · 2025: 10 · 2024: 10 · 2023: 8 · 2022: 11 · 2021: 18 · 2020: 44 · 2019: 21 · 2018: 20 · 2017: 18 · 2016: 21 · 2015: 26 · 2014: 14
FWCI
9.15
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • Hacettepe University Institutional Repository (hacettepe.edu.tr) (submittedVersion, other-oa)
Funders
  • Howard Hughes Medical Institute
  • Wellcome Trust (GR082557)
  • Medical Research Council (MC_PC_15004)
  • National Institute of Mental Health (U01MH081896)
  • National Institute of Neurological Disorders and Stroke (R01NS035129)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HHSN275200900011C, P30HD018655, N01-HD-90011)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
GPR56, alternative splicing, alternative promoters, cortical development, Broca's area, Sylvian fissure, RFX transcription factors, G protein-coupled receptors, cortical progenitor cells, stem cell proliferation, neocortex evolution, laterality
MeSH terms
Animals, Base Sequence, Cats, Cerebral Cortex, Biological Evolution, Frontal Lobe, Haplotypes, Humans, Molecular Sequence Data, Pedigree, Promoter Regions, Genetic, Genetic Variation, Sequence Deletion, Alternative Splicing, Codon, Nonsense, Body Patterning, Receptors, G-Protein-Coupled, Cell Proliferation, Mice, Neural Stem Cells

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