Antagonistic interactions among Plexins regulate the timing of intersegmental vessel formation.

Abstract excerpt

The angioblast is an embryonic endothelial cell precursor that migrates long distances to reach its final position, navigating by sensing attractive and repulsive cues from the environment. Members of the semaphorin family have been implicated in controlling the behaviour of angioblast tip cells through repulsive signalling in vitro, but their in vivo roles are less clear. Here we show that zebrafish semaphorin3e...

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