Cited by 371Amyotrophic Lateral Sclerosis ResearchDevelopmental Biology and Gene RegulationNeurogenesis and neuroplasticity mechanisms

TDP-43 Is a Developmentally Regulated Protein Essential for Early Embryonic Development

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Sephton, Chantelle F., Good, Shannon K., Atkin, Stan, Dewey, Colleen M., Mayer, Paul, Herz, Joachim, Yu, Gang·2010·Journal of Biological Chemistry

Abstract

TDP-43 is a DNA/RNA-binding protein implicated in multiple steps of transcriptional and post-transcriptional regulation of gene expression. Alteration of this multifunctional protein is associated with a number of neurodegenerative diseases including amyotrophic lateral sclerosis and frontotemporal lobar degeneration with ubiquitin positive inclusions. Whereas a pathological link to neurodegenerative disorders has been established, the cellular and physiological functions of TDP-43 remain unknown. In this study, we show that TDP-43 is a nuclear protein with persistent high-level expression during embryonic development and with progressively decreased protein levels during postnatal development. In mice where the TDP-43 gene (Tardbp) was disrupted using a gene trap that carries a beta-galactosidase marker gene, heterozygous (Tardbp(+/-)) mice are fertile and healthy, but intercrosses of Tardbp(+/-) mice yielded no viable homozygotic null (Tardbp(-/-)) mice. Indeed, Tardbp(-/-) embryos die between 3.5 and 8.5 days of development. Tardbp(-/-) blastocysts grown in cell culture display abnormal expansion of their inner cell mass. The pattern of beta-galactosidase staining at E9.5 Tardbp(+/-) embryos is predominantly restricted to the neuroepithelium and remains prominent in neural progenitors at E10.5-12.5. TDP-43 is detected in spinal cord progenitors and in differentiated motor neurons as well as in the dorsal root ganglia at E12.5. Beta-galactosidase staining of tissues from adult Tardbp(+/-) mice shows widespread expression of TDP-43, including prominent levels in various regions of the central nervous system afflicted in neurodegenerative disorders. These results indicate that TDP-43 is developmentally regulated and indispensible for early embryonic development.

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Crossref · 10.1074/jbc.m109.061846

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  • ALS-like phenotypes are seen in mice with partial depletion of TDP43 by RNA interference or with targeted deletion of Tdp43 in motor neurons.

    “ALS-like phenotypes are seen in mice with partial depletion of TDP43 by RNA interference, or with targeted deletion of Tdp43 in motor neurons”

    From The neurogenetics of alternative splicing (2016) · cites this paper as [164]

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Authors
Sephton, C. F., Good, S. K., Atkin, S., Dewey, C. M., Mayer, P., Herz, J., & Yu, G.
Affiliations
The University of Texas Southwestern Medical Center (US)
Corresponding author
Yu, Gang
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2010-02
Volume
285
Issue
9
Pages
6826-6834
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2069350252
Cited by
370
References
31
Citations by year
2026: 8 · 2025: 17 · 2024: 12 · 2023: 22 · 2022: 30 · 2021: 24 · 2020: 17 · 2019: 23 · 2018: 25 · 2017: 20 · 2016: 17 · 2015: 17 · 2014: 32 · 2013: 30 · 2012: 25
FWCI
15.95
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute on Aging (AG023104, R01AG029547, R01AG023104)
  • National Heart, Lung, and Blood Institute (R37HL063762)
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
TDP-43, TARDBP, embryonic development, gene trap, conditional knockout mice, neural progenitor cells, neuroepithelium, motor neurons, dorsal root ganglia, developmental regulation, neurodegenerative diseases, amyotrophic lateral sclerosis, frontotemporal lobar degeneration, ubiquitin-positive inclusions
MeSH terms
Animals, Animals, Newborn, Blastocyst, Central Nervous System, DNA-Binding Proteins, Heterozygote, Homozygote, Neurons, Stem Cells, Tissue Distribution, Gene Expression Regulation, Developmental, Neurodegenerative Diseases, Embryonic Development, Mice

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