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Open AccessJournal ArticleDOI

Cell communication networks: epidermal growth factor receptor transactivation as the paradigm for interreceptor signal transmission

TLDR
The recent identification of Zn2+-dependent metalloproteinases and transmembrane growth factor precursors as critical elements in GPCR-induced EGFR transactivation pathways has defined new components of a cellular communication network of rapidly increasing complexity.
Abstract
Communication between different cellular signaling systems has emerged as a common principle that enables cells to integrate a multitude of signals from its environment. Transactivation of the epidermal growth factor receptor (EGFR) represents the paradigm for cross-talk between G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs). The recent identification of Zn2+-dependent metalloproteinases and transmembrane growth factor precursors as critical elements in GPCR-induced EGFR transactivation pathways has defined new components of a cellular communication network of rapidly increasing complexity. Further elucidation of the molecular details of the EGFR transactivation mechanism will provide new understanding of its relevance for normal physiological processes and their pathophysiological deviations.

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Journal ArticleDOI

Regulation of cardiac hypertrophy by intracellular signalling pathways

TL;DR: Recent findings in genetically modified animal models implicate important intermediate signal-transduction pathways in the coordination of heart growth following physiological and pathological stimulation.
Journal ArticleDOI

Epidermal growth factor receptor (EGFR) signaling in cancer

TL;DR: The growth and the survival of carcinoma cells appear to be sustained by a network of receptors/ligands of the ErbB family, which is important for therapeutic approaches, since the response to anti-EGFR agents might depend on the total level of expression ofErbB receptors and ligands in tumor cells.
Journal ArticleDOI

The role of β-arrestins in the termination and transduction of G-protein-coupled receptor signals

TL;DR: In this article, the Src family tyrosine kinases and components of the ERK1/2 and JNK3 MAP kinase cascades are recruited to GPCR-occupied GPCRs by recruiting these kinases to the receptor.
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Insulin-like growth factor-I receptor signaling and resistance to trastuzumab (Herceptin)

TL;DR: In breast cancer cell models that overexpress HER2/neu, an increased level of IGF-IR signaling appears to interfere with the action of trastuzumab, and strategies that target IGF- IR signaling may prevent or delay development of resistance to trastzumab.
Journal ArticleDOI

The epidermal growth factor receptor family as a central element for cellular signal transduction and diversification.

TL;DR: A broad overview of signal transduction networks that are controlled by the EGFR superfamily of receptors in health and disease and its application for target-selective therapeutic intervention is given.
References
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Journal ArticleDOI

A metalloproteinase disintegrin that releases tumour-necrosis factor-α from cells

TL;DR: The results should facilitate the development of therapeutically useful inhibitors of TNF-α release, and they indicate that an important function of adamalysins may be to shed cell-surface proteins.
Journal ArticleDOI

Human epidermal growth factor receptor cDNA sequence and aberrant expression of the amplified gene in A431 epidermoid carcinoma cells

TL;DR: The complete 1,210-amino acid sequence of the human epidermal growth factor (EGF) receptor precursor, deduced from cDNA clones derived from placental and A431 carcinoma cells, reveals close similarity between the entire predicted ν-erb-B mRNA oncogene product and the receptor transmembrane and cytoplasmic domains.
Journal ArticleDOI

The ErbB signaling network: receptor heterodimerization in development and cancer

TL;DR: The role of ErbB receptors as normal signal transducers and their contribution to the process of malignant transformation during tumor development are concentrated on.
PatentDOI

EGF receptor transactivation by G-protein-coupled receptors requires metalloproteinase cleavage of proHB-EGF

TL;DR: In this article, agents and methods for growth factor receptor activation by modulating the G-protein mediated signal transduction pathway were described, and a method to activate the growth factor receptors was proposed.
Journal ArticleDOI

Role of transactivation of the EGF receptor in signalling by G-protein-coupled receptors

TL;DR: It is reported here that the epidermal growth factor receptor (EGFR) and the neu oncoprotein become rapidly tyrosine-phosphorylated upon stimulation of Rat-1 cells with the GPCR agonists endothelin-1, lysophosphatic acid and thrombin, suggesting that there is an intracellular mechanism for transactivation.
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