The EGF receptor provides an essential survival signal for SOS-dependent skin tumor development
In: Cell, Jg. 102 (2000-08-16), Heft 2
Online
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Zugriff:
The EGF receptor (EGFR) is required for skin development and is implicated in epithelial tumor formation. Transgenic mice expressing a dominant form of Son of Sevenless (SOS-F) in basal keratinocytes develop skin papillomas with 100% penetrance. However, tumor formation is inhibited in a hypomorphic (wa2) and null EGFR background. Similarly, EGFR-deficient fibroblasts are resistant to transformation by SOS-F and ras V12, however, tumorigenicity is restored by expression of the anti-apoptotic bcl -2 gene. The K5-SOS-F papillomas and primary keratinocytes from wa2 mice display increased apoptosis, reduced Akt phosphorylation and grafting experiments imply a cell-autonomous requirement for EGFR in keratinocytes. Therefore, EGFR functions as a survival factor in oncogenic transformation and provides a valuable target for therapeutic intervention in a broader range of tumors than anticipated.
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The EGF receptor provides an essential survival signal for SOS-dependent skin tumor development
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Autor/in / Beteiligte Person: | Fleischmann, Alexander ; Stingl, Laura ; Behrens, Axel ; Watt, Fiona M. ; Sibilia, Maria ; Carroll, Joseph M. ; Wagner, Erwin F. ; Schlessinger, Joseph |
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Zeitschrift: | Cell, Jg. 102 (2000-08-16), Heft 2 |
Veröffentlichung: | 2000 |
Medientyp: | unknown |
ISSN: | 0092-8674 (print) |
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