Initiation of mammalian liver development from endoderm by fibroblast growth factors.

Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 0404511 Publication Model: Print Cited Medium: Print ISSN: 0036-8075 (Print) Linking ISSN: 00368075 NLM ISO Abbreviation: Science Subsets: MEDLINE

Publication: : Washington, DC : American Association for the Advancement of Science
Original Publication: New York, N.Y. : [s.n.] 1880-

Embryonic Induction*; Endoderm/*physiology ; Fibroblast Growth Factors/*physiology ; Liver/*embryology; Animals ; Culture Techniques ; Digestive System/embryology ; Endoderm/metabolism ; Fibroblast Growth Factor 1 ; Fibroblast Growth Factor 2/genetics ; Fibroblast Growth Factor 2/pharmacology ; Fibroblast Growth Factor 2/physiology ; Fibroblast Growth Factor 8 ; Fibroblast Growth Factors/genetics ; Fibroblast Growth Factors/pharmacology ; Gene Expression ; Heart/embryology ; Heparitin Sulfate/pharmacology ; Liver/metabolism ; Mesoderm/metabolism ; Mice ; Mice, Inbred C3H ; Morphogenesis ; Organ Specificity ; Prealbumin/genetics ; Receptors, Fibroblast Growth Factor/physiology ; Recombinant Fusion Proteins ; Serum Albumin/genetics ; Signal Transduction ; alpha-Fetoproteins/genetics

The signaling molecules that elicit embryonic induction of the liver from the mammalian gut endoderm or induction of other gut-derived organs are unknown. Close proximity of cardiac mesoderm, which expresses fibroblast growth factors (FGFs) 1, 2, and 8, causes the foregut endoderm to develop into the liver. Treatment of isolated foregut endoderm from mouse embryos with FGF1 or FGF2, but not FGF8, was sufficient to replace cardiac mesoderm as an inducer of the liver gene expression program, the latter being the first step of hepatogenesis. The hepatogenic response was restricted to endoderm tissue, which selectively coexpresses FGF receptors 1 and 4. Further studies with FGFs and their specific inhibitors showed that FGF8 contributes to the morphogenetic outgrowth of the hepatic endoderm. Thus, different FGF signals appear to initiate distinct phases of liver development during mammalian organogenesis.

GM36477 United States GM NIGMS NIH HHS

0 (Fgf8 protein, mouse)
0 (Prealbumin)
0 (Receptors, Fibroblast Growth Factor)
0 (Recombinant Fusion Proteins)
0 (Serum Albumin)
0 (alpha-Fetoproteins)
103107-01-3 (Fibroblast Growth Factor 2)
104781-85-3 (Fibroblast Growth Factor 1)
148997-75-5 (Fibroblast Growth Factor 8)
62031-54-3 (Fibroblast Growth Factors)
9050-30-0 (Heparitin Sulfate)

Date Created: 19990618 Date Completed: 19990707 Latest Revision: 20220310

20250114

10.1126/science.284.5422.1998

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