Dying to communicate: apoptotic functions of Eph/Ephrin proteins

Apoptosis : an International Journal on Programmed Cell Death
Mustapha Kandouz

Abstract

The Erythropoietin-producing human hepatocellular carcinoma (Eph) receptors constitute the largest family of receptor tyrosine kinases and interact with a group of ligands called Ephrins. An essential feature of the Eph receptors and Ephrin ligands is that both are membrane-bound and, upon cell-cell interaction, initiate a bidirectional signaling involving both the receptor (forward signaling) and the ligand (reverse signaling). They regulate a large set of pleiotropic functions in virtually every tissue and physiological system. In vitro as well as in vivo data support a role for Eph and Ephrin molecules in cellular processes such as proliferation, cell-cell attraction and repulsion, motility and sorting. An increasing amount of evidence supports a role for these molecules in apoptosis and, although this function in cell death has been barely examined, the available information warrants a global consideration, to identify unmet needs and potential research avenues. Here we propose a comprehensive analysis of the data available regarding the importance of Ephs and Ephrins in cell death mechanisms throughout a large array of physiological systems.

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Methods Mentioned

BETA
targeted mutation
transgenic
antisense oligonucleotides
xenografts
xenograft
GTPase
nucleotide exchange
antisense

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