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Full-Text Articles in Medical Specialties
Developmental Expression Of Pdgf, Tgf-A, And Tgf-J Genes In Preimplantation Mouse Embryos, Daniel A. Rappolee, Carol A. Brenner, Richard Schultz, David Mark, Zena Werb
Developmental Expression Of Pdgf, Tgf-A, And Tgf-J Genes In Preimplantation Mouse Embryos, Daniel A. Rappolee, Carol A. Brenner, Richard Schultz, David Mark, Zena Werb
Department of Obstetrics and Gynecology Research Publications
Control of growth and differentiation during mammalian embryogenesis may be regulated by growth factors from embryonic or maternal sources. With the use of single-cell messenger RNA phenotyping, the simultaneous expression of growth factor transcripts in single or small numbers of preimplantation mouse embryos was examined. Transcripts for platelet-derived growth factor A chain (PDGF-A), trans- forming growth factor (TGF)-a, and TGF- 1, but not for four other growth factors, were found in whole blastocysts. TGF-cx, TGF-(31, and PDGF antigens were detected in blastocysts by immunocytochemistry. Both PDGF-A and TGF-a were detected as maternal transcripts in the unferilized ovulated oocyte, and again …