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2015 ; 314
(ä): 1-41
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Epidermal growth factor signaling in transformed cells
#MMPMID25619714
Lindsey S
; Langhans SA
Int Rev Cell Mol Biol
2015[]; 314
(ä): 1-41
PMID25619714
show ga
Members of the epidermal growth factor receptor (EGFR/ErbB) family play a
critical role in normal cell growth and development. However, many ErbB family
members, especially EGFR, are aberrantly expressed or deregulated in tumors and
are thought to play crucial roles in cancer development and metastatic
progression. In this chapter, we provide an overview of key mechanisms
contributing to aberrant EGFR/ErbB signaling in transformed cells, which results
in many phenotypic changes associated with the earliest stages of tumor
formation, including several hallmarks of epithelial-mesenchymal transition
(EMT). These changes often occur through interaction with other major signaling
pathways important to tumor progression, causing a multitude of transcriptional
changes that ultimately impact cell morphology, proliferation, and adhesion, all
of which are crucial for tumor progression. The resulting mesh of signaling
networks will need to be taken into account as new regimens are designed for
targeting EGFR for therapeutic intervention. As new insights are gained into the
molecular mechanisms of cross talk between EGFR signaling and other signaling
pathways, including their roles in therapeutic resistance to anti-EGFR therapies,
a continual reassessment of clinical therapeutic regimes and strategies will be
required. Understanding the consequences and complexity of EGF signaling and how
it relates to tumor progression is critical for the development of clinical
compounds and establishing clinical protocols for the treatment of cancer.