An ancient role for nuclear β-catenin in the evolution of axial polarity and germ layer segregation

Athula Wikramanayake, Melanie Hong, Patricia N. Lee, Kevin Pang, Christine A. Byrum, Joanna M. Bince, Ronghui Xu, Mark Q. Martindale

Research output: Contribution to journalArticle

226 Citations (Scopus)

Abstract

The human oncogene β-catenin is a bifunctional protein with critical roles in both cell adhesion and transcriptional regulation in the Wnt pathway. Wnt/β-catenin signalling has been implicated in developmental processes as diverse as elaboration of embryonic polarity, formation of germ layers, neural patterning, spindle orientation and gap junction communication, but the ancestral function of β-catenin remains unclear. In many animal embryos, activation of β-catenin signalling occurs in blastomeres that mark the site of gastrulation and endomesoderm formation, raising the possibility that asymmetric activation of β-catenin signalling specified embryonic polarity and segregated germ layers in the common ancestor of bilaterally symmetrical animals. To test whether nuclear translocation of β-catenin is involved in axial identity and/or germ layer formation in 'pre-bilaterians', we examined the in vivo distribution, stability and function of β-catenin protein in embryos of the sea anemone Nematostella vectensis (Cnidaria, Anthozoa). Here we show that N. vectensis β-catenin is differentially stabilized along the oral-aboral axis, translocated into nuclei in cells at the site of gastrulation and used to specify entoderm, indicating an evolutionarily ancient role for this protein in early pattern formation.

Original languageEnglish
Pages (from-to)446-450
Number of pages5
JournalNature
Volume426
Issue number6965
DOIs
StatePublished - Nov 27 2003
Externally publishedYes

Fingerprint

Germ Layers
Catenins
Gastrulation
Embryonic Structures
Sea Anemones
Cnidaria
Blastomeres
Anthozoa
Wnt Signaling Pathway
Gap Junctions
Cell Nucleus
Oncogenes
Cell Adhesion
Proteins
Communication

ASJC Scopus subject areas

  • General

Cite this

Wikramanayake, A., Hong, M., Lee, P. N., Pang, K., Byrum, C. A., Bince, J. M., ... Martindale, M. Q. (2003). An ancient role for nuclear β-catenin in the evolution of axial polarity and germ layer segregation. Nature, 426(6965), 446-450. https://doi.org/10.1038/nature02113

An ancient role for nuclear β-catenin in the evolution of axial polarity and germ layer segregation. / Wikramanayake, Athula; Hong, Melanie; Lee, Patricia N.; Pang, Kevin; Byrum, Christine A.; Bince, Joanna M.; Xu, Ronghui; Martindale, Mark Q.

In: Nature, Vol. 426, No. 6965, 27.11.2003, p. 446-450.

Research output: Contribution to journalArticle

Wikramanayake, A, Hong, M, Lee, PN, Pang, K, Byrum, CA, Bince, JM, Xu, R & Martindale, MQ 2003, 'An ancient role for nuclear β-catenin in the evolution of axial polarity and germ layer segregation', Nature, vol. 426, no. 6965, pp. 446-450. https://doi.org/10.1038/nature02113
Wikramanayake, Athula ; Hong, Melanie ; Lee, Patricia N. ; Pang, Kevin ; Byrum, Christine A. ; Bince, Joanna M. ; Xu, Ronghui ; Martindale, Mark Q. / An ancient role for nuclear β-catenin in the evolution of axial polarity and germ layer segregation. In: Nature. 2003 ; Vol. 426, No. 6965. pp. 446-450.
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