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Mol. Cell. Biol., 10 1995, 5770-5776, Vol 15, No. 10
DJ Riese 2nd, TM van Raaij, GD Plowman, GC Andrews and DF Stern
Deregulated signaling by the four members of the epidermal growth factor
receptor tyrosine kinase family (erbB family) is implicated in the genesis
or progression of human cancers. However, efforts to analyze signaling by
these receptors have been hampered by the diversity of ligands and
extensive interreceptor cross talk. We have expressed the four human erbB
family receptors, singly and in pairwise combinations, in a
pro-B-lymphocyte cell line (Ba/F3) and investigated the range of
interactions activated by the epidermal growth factor homology domain of
the agonist neuregulin beta. The results provide the first comprehensive
analysis of the response of this receptor family to a single peptide
agonist. This peptide induced complex patterns of receptor tyrosine
phosphorylation and regulation of Ba/F3 cell survival and proliferation.
These data demonstrate the existence of several previously undocumented
receptor interactions driven by neuregulin.
Copyright © 1995, American Society for Microbiology
The cellular response to neuregulins is governed by complex interactions of the erbB receptor family [published erratum appears in Mol Cell Biol 1996 Feb;16(2):735]
Department of Pathology, Yale University School of Medicine, New Haven, Connecticut 06520-8023, USA.
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