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Vessels and Nerves: Marching to the Same Tune

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Presentation on theme: "Vessels and Nerves: Marching to the Same Tune"— Presentation transcript:

1 Vessels and Nerves: Marching to the Same Tune
Brant M. Weinstein  Cell  Volume 120, Issue 3, Pages (February 2005) DOI: /j.cell Copyright © 2005 Elsevier Inc. Terms and Conditions

2 Figure 1 A Model for Patterning of the Trunk Vasculature by Neuronal Guidance Factors (A) Members of various families of guidance factors are expressed in discrete patterns in the developing trunk. (B–D) Intersegmental arteries (ISA) and veins (ISV) extend along the boundaries between somites, avoiding semaphorin- and ephrin-rich somitic territories. (E) Blood vessels in zebrafish and mice lacking the semaphorin receptor plexinD1 sprout and grow without regard to somitic boundaries (compare to control, [D]). (F and G) Additional longitudinal parachordal (P) and vertebral (V) vessels form on either side of the trunk at later stages of development. Early expression of netrin adjacent to their future paths may inhibit premature formation of these later-developing vessels until the appropriate developmental time point. NT, neural tube; No, notochord; DA, dorsal aorta; PCV, posterior cardinal vein. (D and E) Multiphoton images of trunk blood vessels in control (D) and plexinD1 null (E) Fli-EGFP transgenic zebrafish, modified from Torres-Vazquez et al. (2004), see reference for details. Cell  , DOI: ( /j.cell ) Copyright © 2005 Elsevier Inc. Terms and Conditions


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