Cited by 461Developmental Biology and Gene RegulationAxon Guidance and Neuronal SignalingCongenital gastrointestinal and neural anomalies

A Hox regulatory network establishes motor neuron pool identity and target-muscle connectivity

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Dasen, Jeremy S., Tice, Bonnie C., Brenner-Morton, Susan, Jessell, Thomas M.·2005·Cell

Abstract

Spinal motor neurons acquire specialized "pool" identities that determine their ability to form selective connections with target muscles in the limb, but the molecular basis of this striking example of neuronal specificity has remained unclear. We show here that a Hox transcriptional regulatory network specifies motor neuron pool identity and connectivity. Two interdependent sets of Hox regulatory interactions operate within motor neurons, one assigning rostrocaudal motor pool position and a second directing motor pool diversity at a single segmental level. This Hox regulatory network directs the downstream transcriptional identity of motor neuron pools and defines the pattern of target-muscle connectivity.

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Crossref · 10.1016/j.cell.2005.09.009

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Authors
Dasen, J. S., Tice, B. C., Brenner-Morton, S., & Jessell, T. M.
Affiliations
Howard Hughes Medical Institute (US)
Corresponding author
Jessell, Thomas M.
Venue
Cell
Publisher
Elsevier BV
Published
2005-11
Volume
123
Issue
3
Pages
477-491
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2122980330
Cited by
461
References
41
Citations by year
2026: 12 · 2025: 7 · 2024: 14 · 2023: 20 · 2022: 24 · 2021: 26 · 2020: 26 · 2019: 18 · 2018: 16 · 2017: 18 · 2016: 23 · 2015: 21 · 2014: 19 · 2013: 24 · 2012: 24
FWCI
9.29
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Health Sciences › Medicine › Surgery › Congenital gastrointestinal and neural anomalies
Keywords
Hox genes, motoneuron pools, spinal cord, transcriptional regulatory networks, neuronal specification, muscle innervation
MeSH terms
Animals, Cell Differentiation, Chick Embryo, Motor Neurons, Spinal Cord, Transcription Factors, Homeodomain Proteins, Muscle, Skeletal, Gene Expression Regulation, Developmental, Body Patterning

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