Abstract
Embryonic development in a given species is orchestrated by genes regulating growth and differentiation in a stereotyped and conserved manner, resulting in embryos of consistent size and shape. Several signaling pathways, including that of Sonic Hedgehog (SHH), have been implicated in these processes. Recent experiments with Gas1 indicate that it may act as a growth-inducing gene, challenging its previous function as a gene specifically involved in growth arrest. Moreover, GAS1, a GPI-linked membrane protein, can bind SHH, suggesting an interacting link between growth and patterning through SHH and GAS1.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Animals
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Body Patterning / physiology*
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Bone Morphogenetic Proteins / metabolism
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Cell Cycle Proteins
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Embryo, Mammalian / physiology
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Embryonic Induction
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GPI-Linked Proteins
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Gene Expression Regulation, Developmental / physiology*
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Hedgehog Proteins
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Membrane Proteins / genetics
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Membrane Proteins / metabolism*
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Mice
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Signal Transduction / physiology
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Trans-Activators / genetics
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Trans-Activators / metabolism*
Substances
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Bone Morphogenetic Proteins
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Cell Cycle Proteins
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GAS1 protein, human
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GPI-Linked Proteins
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Gas1 protein, mouse
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Hedgehog Proteins
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Membrane Proteins
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SHH protein, human
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Trans-Activators