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Dev Biol. 2015 May 1;401(1):122-31. doi: 10.1016/j.ydbio.2014.11.013. Epub 2014 Nov 20.

Mechanisms of boundary formation by Eph receptor and ephrin signaling.

Author information

1
Division of Developmental Neurobiology, MRC National Institute for Medical Research, London NW7 1AA, United Kingdom.
2
Division of Developmental Neurobiology, MRC National Institute for Medical Research, London NW7 1AA, United Kingdom. Electronic address: dwilkin@nimr.mrc.ac.uk.

Abstract

The formation of sharp borders, across which cell intermingling is restricted, has a crucial role in the establishment and maintenance of organized tissues. Signaling of Eph receptors and ephrins underlies formation of a number of boundaries between and within tissues during vertebrate development. Eph-ephrin signaling can regulate several types of cell response-adhesion, repulsion and tension-that can in principle underlie the segregation of cells and formation of sharp borders. Recent studies have implicated each of these cell responses as having important roles at different boundaries: repulsion at the mesoderm-ectoderm border, decreased adhesion at the notochord-presomitic mesoderm border, and tension at boundaries within the hindbrain and forebrain. These distinct responses to Eph receptor and ephrin activation may in part be due to the adhesive properties of the tissue.

KEYWORDS:

Adhesion; Boundary formation; Eph receptor; Ephrin; Repulsion; Tension

PMID:
25448699
DOI:
10.1016/j.ydbio.2014.11.013
[Indexed for MEDLINE]
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