Epithelial-mesenchymal transformation of embryonic cardiac endothelial cells is inhibited by a modified antisense oligodeoxynucleotide to transforming growth factor beta 3

During early cardiac development, the progenitor cells of the heart valves and membranous septa undergo an epithelial-mesenchymal transformation. Previous studies have shown that this transformation depends on the activity of a transforming growth factor beta (TGF beta) molecule produced by the hear...

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Veröffentlicht in:Proceedings of the National Academy of Sciences - PNAS 1991-02, Vol.88 (4), p.1516-1520
Hauptverfasser: Potts, J D, Dagle, J M, Walder, J A, Weeks, D L, Runyan, R B
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Sprache:eng
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Zusammenfassung:During early cardiac development, the progenitor cells of the heart valves and membranous septa undergo an epithelial-mesenchymal transformation. Previous studies have shown that this transformation depends on the activity of a transforming growth factor beta (TGF beta) molecule produced by the heart. In the present study, we have used modified antisense oligodeoxynucleotides generated to nonconserved regions of TGF beta 1, -2, -3, and -4 to examine the possible roles of these members in this transformation. A phosphoramidate-modified oligonucleotide complementary to TGF beta 3 mRNA was capable of inhibiting normal epithelial-mesenchymal transformation by 80%. Unmodified oligonucleotides to TGF beta 3, modified oligonucleotides to TGF beta 1, -2, and -4, and two modified control oligonucleotides were unable to inhibit the transformation. These data demonstrate that a specific member of the TGF beta family, TGF beta 3, is essential for the epithelial-mesenchymal cell transformation.
ISSN:0027-8424
1091-6490
DOI:10.1073/pnas.88.4.1516