Affiliation:
1. Columbia University College of Physicians and Surgeons, Department of Biochemistry and Molecular Biophysics, New York, NY 10032.
Abstract
Fibroblast growth factors (FGFs) are structurally related mitogens that can regulate the differentiation of a wide variety of cells. As a step towards elucidating the developmental roles played by one of these factors, we have used in situ hybridization methods to examine expression of the murine F gf-5 gene during embryogenesis. F gf-5 RNA was detected at seven distinct sites in the developing mouse embryo: (1) postimplantation epiblast (embryonic day 5 1/4-7 1/2), (2) lateral splanchnic mesoderm (E9 1/2-10 1/2), (3) lateral somatic mesoderm (E10 1/2-12 1/2), (4) myotomes (E10 1/2-12 1/2), (5) mastication muscle (E11 1/2-14 1/2), (6) limb mesenchyme (E12 1/2-14 1/2), and (7) acoustic ganglion (E12 1/2-14 1/2). At several of these sites, expression is spatially restricted within the tissues. We offer several hypotheses regarding the roles of FGF-5 in murine development.
Publisher
The Company of Biologists
Subject
Developmental Biology,Molecular Biology
Cited by
173 articles.
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