Regulation of left-right patterning in mice by growth/differentiation factor-1

Christopher T. Rankin, Tracie Bunton, Ann M Lawler, Se Jin Lee

Research output: Contribution to journalArticle

Abstract

The transforming growth factor-β (TGF-β) superfamily encompasses a large group of structurally related polypeptides that are capable of regulating cell growth and differentiation in a wide range of embryonic and adult tissues. Growth/differentiation factor-1 (Gdf-1, encoded by Gdf1) is a TGF-β family member of unknown function that was originally isolated from an early mouse embryo cDNA library and is expressed specifically in the nervous system in late-stage embryos and adult mice. Here we show that at early stages of mouse development, Gdf1 is expressed initially throughout the embryo proper and then most prominently in the primitive node, ventral neural tube, and intermediate and lateral plate mesoderm. To examine its biological function, we generated a mouse line carrying a targeted mutation in Gdf1. Gdf1(-/-) mice exhibited a spectrum of defects related to left- right axis formation, including visceral situs inversus, right pulmonary isomerism and a range of cardiac anomalies. In most Gdf1(-/-) embryos, the expression of Ebaf (formerly lefty-1) in the left side of the floor plate and Leftb (formerly lefty-2), nodal and Pitx2 in the left lateral plate mesoderm was absent, suggesting that Gdf1 acts upstream of these genes either directly or indirectly to activate their expression. Our findings suggest that Gdf1 acts early in the pathway of gene activation that leads to the establishment of left-right asymmetry.

Original languageEnglish (US)
Pages (from-to)262-265
Number of pages4
JournalNature Genetics
Volume24
Issue number3
DOIs
StatePublished - Mar 2000

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Growth Differentiation Factor 1
Embryonic Structures
Transforming Growth Factors
Mesoderm
Isomerism
Situs Inversus
Neural Tube
Gene Library
Nervous System
Transcriptional Activation
Cell Differentiation
Lung
Peptides
Mutation
Growth

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics

Cite this

Regulation of left-right patterning in mice by growth/differentiation factor-1. / Rankin, Christopher T.; Bunton, Tracie; Lawler, Ann M; Lee, Se Jin.

In: Nature Genetics, Vol. 24, No. 3, 03.2000, p. 262-265.

Research output: Contribution to journalArticle

Rankin, Christopher T. ; Bunton, Tracie ; Lawler, Ann M ; Lee, Se Jin. / Regulation of left-right patterning in mice by growth/differentiation factor-1. In: Nature Genetics. 2000 ; Vol. 24, No. 3. pp. 262-265.
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