Retrograde BMP Signaling Regulates Trigeminal Sensory Neuron Identities and the Formation of Precise Face Maps

Liberty K. Hodge, Matthew P. Klassen, Bao Xia Han, Glenn C Yiu, Joanna Hurrell, Audrey Howell, Guy Rousseau, Frederic Lemaigre, Marc Tessier-Lavigne, Fan Wang

Research output: Contribution to journalArticle

76 Citations (Scopus)

Abstract

Somatosensory information from the face is transmitted to the brain by trigeminal sensory neurons. It was previously unknown whether neurons innervating distinct areas of the face possess molecular differences. We have identified a set of genes differentially expressed along the dorsoventral axis of the embryonic mouse trigeminal ganglion and thus can be considered trigeminal positional identity markers. Interestingly, establishing some of the spatial patterns requires signals from the developing face. We identified bone morphogenetic protein 4 (BMP4) as one of these target-derived factors and showed that spatially defined retrograde BMP signaling controls the differential gene expressions in trigeminal neurons through both Smad4-independent and Smad4-dependent pathways. Mice lacking one of the BMP4-regulated transcription factors, Onecut2 (OC2), have defects in the trigeminal central projections representing the whiskers. Our results provide molecular evidence for both spatial patterning and retrograde regulation of gene expression in sensory neurons during the development of the somatosensory map.

Original languageEnglish (US)
Pages (from-to)572-586
Number of pages15
JournalNeuron
Volume55
Issue number4
DOIs
StatePublished - Aug 16 2007
Externally publishedYes

Fingerprint

Bone Morphogenetic Protein 4
Sensory Receptor Cells
Neurons
Vibrissae
Trigeminal Ganglion
Gene Expression Regulation
Transcription Factors
Gene Expression
Brain
Genes

Keywords

  • DEVBIO
  • MOLNEURO

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Retrograde BMP Signaling Regulates Trigeminal Sensory Neuron Identities and the Formation of Precise Face Maps. / Hodge, Liberty K.; Klassen, Matthew P.; Han, Bao Xia; Yiu, Glenn C; Hurrell, Joanna; Howell, Audrey; Rousseau, Guy; Lemaigre, Frederic; Tessier-Lavigne, Marc; Wang, Fan.

In: Neuron, Vol. 55, No. 4, 16.08.2007, p. 572-586.

Research output: Contribution to journalArticle

Hodge, LK, Klassen, MP, Han, BX, Yiu, GC, Hurrell, J, Howell, A, Rousseau, G, Lemaigre, F, Tessier-Lavigne, M & Wang, F 2007, 'Retrograde BMP Signaling Regulates Trigeminal Sensory Neuron Identities and the Formation of Precise Face Maps', Neuron, vol. 55, no. 4, pp. 572-586. https://doi.org/10.1016/j.neuron.2007.07.010
Hodge, Liberty K. ; Klassen, Matthew P. ; Han, Bao Xia ; Yiu, Glenn C ; Hurrell, Joanna ; Howell, Audrey ; Rousseau, Guy ; Lemaigre, Frederic ; Tessier-Lavigne, Marc ; Wang, Fan. / Retrograde BMP Signaling Regulates Trigeminal Sensory Neuron Identities and the Formation of Precise Face Maps. In: Neuron. 2007 ; Vol. 55, No. 4. pp. 572-586.
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