The fully linked HTML version of this article has now been published.
Development ePress online publication date 3 Nov 2004
doi: 10.1242/dev.01458
Research article
Stabilization of
-catenin in the mouse zygote leads to premature epithelial-mesenchymal transition in the epiblast
Rolf Kemler*,
Andreas Hierholzer,
Benoît Kanzler,
Stefan Kuppig,
Kati Hansen,
Makoto M. Taketo,
Wilhelmine N. de Vries,
Barbara B. Knowles,
and
Davor Solter
* Author for correspondence (e-mail: kemler{at}immunbio.mpg.de)
Many components of the Wnt/
-catenin signaling pathway are expressed during mouse pre-implantation embryo development, suggesting that this pathway may control cell proliferation and differentiation at this time. We find no evidence for a functional activity of this pathway in cleavage-stage embryos using the Wnt-reporter line, BAT-gal. To further probe the activity of this pathway, we activated
-catenin signaling by mating a zona pellucida3-cre (Zp3-cre) transgenic mouse line with a mouse line containing an exon3-floxed
-catenin allele. The result is expression of a stabilized form of
-catenin, resistant to degradation by the GSK3
-mediated proteasome pathway, expressed in the developing oocyte and in each cell of the resulting embryos. Nuclear localization and signaling function of
-catenin were not observed in cleavage-stage embryos derived from these oocytes. These results indicate that in pre-implantation embryos, molecular mechanisms independent of the GSK3
-mediated ubiquitination and proteasome degradation pathway inhibit the nuclear function of
-catenin. Although the mutant blastocysts initially developed normally, they then exhibited a specific phenotype in the embryonic ectoderm layer of early post-implantation embryos. We show a nuclear function of
-catenin in the mutant epiblast that leads to activation of Wnt/
-catenin target genes. As a consequence, cells of the embryonic ectoderm change their fate, resulting in a premature epithelial-mesenchymal transition.

CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati
Twitter What's this?
This article has been cited by other articles:

|
 |

|
 |
 
J. Fu, M. Jiang, A. J. Mirando, H.-M. I. Yu, and W. Hsu
Reciprocal regulation of Wnt and Gpr177/mouse Wntless is required for embryonic axis formation
PNAS,
November 3, 2009;
106(44):
18598 - 18603.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
G. Zheng, J. G. Lyons, T. K. Tan, Y. Wang, T.-T. Hsu, D. Min, L. Succar, G. K. Rangan, M. Hu, B. R. Henderson, et al.
Disruption of E-Cadherin by Matrix Metalloproteinase Directly Mediates Epithelial-Mesenchymal Transition Downstream of Transforming Growth Factor-{beta}1 in Renal Tubular Epithelial Cells
Am. J. Pathol.,
August 1, 2009;
175(2):
580 - 591.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. Grigoryan, P. Wend, A. Klaus, and W. Birchmeier
Deciphering the function of canonical Wnt signals in development and disease: conditional loss- and gain-of-function mutations of {beta}-catenin in mice
Genes & Dev.,
September 1, 2008;
22(17):
2308 - 2341.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
T. Sumi, N. Tsuneyoshi, N. Nakatsuji, and H. Suemori
Defining early lineage specification of human embryonic stem cells by the orchestrated balance of canonical Wnt/{beta}-catenin, Activin/Nodal and BMP signaling
Development,
September 1, 2008;
135(17):
2969 - 2979.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
H. Xie, S. Tranguch, X. Jia, H. Zhang, S. K. Das, S. K. Dey, C. J. Kuo, and H. Wang
Inactivation of nuclear Wnt-{beta}-catenin signaling limits blastocyst competency for implantation
Development,
February 15, 2008;
135(4):
717 - 727.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
W. Wu, R. F. Xu, L. Xiao, H. Xu, and G. Gao
Expression of the -Catenin Gene in the Skin of Embryonic Geese During Feather Bud Development
Poult. Sci.,
January 1, 2008;
87(1):
204 - 211.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
P. Hohenstein and N. D. Hastie
The many facets of the Wilms' tumour gene, WT1
Hum. Mol. Genet.,
October 15, 2006;
15(suppl_2):
R196 - R201.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
C. Chazaud and J. Rossant
Disruption of early proximodistal patterning and AVE formation in Apc mutants
Development,
September 1, 2006;
133(17):
3379 - 3387.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
P. W. Heiser, J. Lau, M. M. Taketo, P. L. Herrera, and M. Hebrok
Stabilization of {beta}-catenin impacts pancreas growth
Development,
May 15, 2006;
133(10):
2023 - 2032.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
Z. Den, X. Cheng, M. Merched-Sauvage, and P. J. Koch
Desmocollin 3 is required for pre-implantation development of the mouse embryo
J. Cell Sci.,
February 1, 2006;
119(3):
482 - 489.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
S. Shi, M. Stahl, L. Lu, and P. Stanley
Canonical Notch Signaling Is Dispensable for Early Cell Fate Specifications in Mammals
Mol. Cell. Biol.,
November 1, 2005;
25(21):
9503 - 9508.
[Abstract]
[Full Text]
[PDF]
|
 |
|

|
 |

|
 |
 
P.B. GUPTA, S. MANI, J. YANG, K. HARTWELL, and R.A. WEINBERG
The Evolving Portrait of Cancer Metastasis
Cold Spring Harb Symp Quant Biol,
January 1, 2005;
70(0):
291 - 297.
[Abstract]
[PDF]
|
 |
|
© The Company of Biologists Ltd 2004