Cited by 67Genetic Syndromes and ImprintingDevelopmental Biology and Gene RegulationGenetics and Neurodevelopmental Disorders

Tissue-specific regulation and function of Grb10 during growth and neuronal commitment

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Plasschaert, Robert N., Bartolomei, Marisa S.·2015·Proceedings of the National Academy of Sciences

Abstract

Growth-factor receptor bound protein 10 (Grb10) is a signal adapter protein encoded by an imprinted gene that has roles in growth control, cellular proliferation, and insulin signaling. Additionally, Grb10 is critical for the normal behavior of the adult mouse. These functions are paralleled by Grb10 ’s unique tissue-specific imprinted expression; the paternal copy of Grb10 is expressed in a subset of neurons whereas the maternal copy is expressed in most other adult tissues in the mouse. The mechanism that underlies this switch between maternal and paternal expression is still unclear, as is the role for paternally expressed Grb10 in neurons. Here, we review recent work and present complementary data that contribute to the understanding of Grb10 gene regulation and function, with specific emphasis on growth and neuronal development. Additionally, we show that in vitro differentiation of mouse embryonic stem cells into alpha motor neurons recapitulates the switch from maternal to paternal expression observed during neuronal development in vivo. We postulate that this switch in allele-specific expression is related to the functional role of Grb10 in motor neurons and other neuronal tissues.

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Authors
Plasschaert, R. N., & Bartolomei, M. S.
Affiliations
University of Pennsylvania (US)
Venue
Proceedings of the National Academy of Sciences
Published
2014-11-03
Volume
112
Issue
22
Pages
6841-6847
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2000761601
Cited by
67
References
61
Citations by year
2026: 4 · 2025: 8 · 2024: 7 · 2023: 3 · 2022: 11 · 2021: 2 · 2020: 7 · 2019: 6 · 2018: 9 · 2017: 3 · 2016: 4 · 2015: 2 · 2014: 1
FWCI
0.44
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • University of Pennsylvania (T32GM008216)
  • National Institutes of Health (GM051279, T32-GM008216)
  • National Institute of General Medical Sciences (GM051279, R01GM051279, T32GM008216, R37GM051279)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Syndromes and Imprinting
  • 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
Grb10, genomic imprinting, allele-specific expression, tissue-specific gene regulation, neuronal development, motor neurons, embryonic stem cell differentiation, insulin signaling, growth regulation
MeSH terms
Animals, Brain, Cell Differentiation, Female, Liver, Male, Neurons, Spinal Cord, Signal Transduction, Protein Structure, Tertiary, Genomic Imprinting, Gene Expression Regulation, Developmental, Gene Expression Profiling, Epigenesis, Genetic, Mice, GRB10 Adaptor Protein, Embryonic Stem Cells

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