Document Detail


On growth and form: a Cartesian coordinate system of Wnt and BMP signaling specifies bilaterian body axes.
MedLine Citation:
PMID:  20179091     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The regulation of body axis specification in the common ancestor of bilaterians remains controversial. BMP signaling appears to be an ancient program for patterning the secondary, or dorsoventral, body axis, but any such program for the primary, or anteroposterior, body axis is debated. Recent work in invertebrates indicates that posterior Wnt/beta-catenin signaling is such a mechanism and that it evolutionarily predates the cnidarian-bilaterian split. Here, I argue that a Cartesian coordinate system of positional information set up by gradients of perpendicular Wnt and BMP signaling is conserved in bilaterians, orchestrates body axis patterning and contributes to both the relative invariance and diversity of body forms.
Authors:
Christof Niehrs
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Development (Cambridge, England)     Volume:  137     ISSN:  1477-9129     ISO Abbreviation:  Development     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-02-24     Completed Date:  2010-04-05     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8701744     Medline TA:  Development     Country:  England    
Other Details:
Languages:  eng     Pagination:  845-57     Citation Subset:  IM    
Affiliation:
Division of Molecular Embryology, DKFZ-ZMBH Alliance, Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany. Niehrs@DKFZ-Heidelberg.de
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Patterning / physiology*
Bone Morphogenetic Proteins / metabolism,  physiology*
Chordata, Nonvertebrate / anatomy & histology,  embryology,  genetics,  physiology
Cnidaria / anatomy & histology,  embryology,  genetics,  physiology
Embryo, Nonmammalian
Evolution, Molecular
Gene Expression Regulation, Developmental
Growth and Development / physiology*
Models, Biological
Models, Theoretical
Phylogeny
Signal Transduction / physiology
Wnt Proteins / metabolism,  physiology*
Chemical
Reg. No./Substance:
0/Bone Morphogenetic Proteins; 0/Wnt Proteins

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