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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

RGM and its receptor neogenin regulate neuronal survival.

Repulsive guidance molecule (RGM) is an axon guidance protein that repels retinal axons upon activation of the neogenin receptor. To understand the functions of RGM-neogenin complexes in vivo, we used gene transfer technology to perturb their expression in the developing neural tube of chick embryos. Surprisingly, neogenin over-expression or RGM down-expression in the neural tube induces apoptosis. Neogenin pro-apoptotic activity in immortalized neuronal cells and in the neural tube is associated with the cleavage of its cytoplasmic domain by caspases. Thus neogenin is a dependence receptor inducing cell death in the absence of RGM, whereas the presence of RGM inhibits this effect.[1]


  1. RGM and its receptor neogenin regulate neuronal survival. Matsunaga, E., Tauszig-Delamasure, S., Monnier, P.P., Mueller, B.K., Strittmatter, S.M., Mehlen, P., Chédotal, A. Nat. Cell Biol. (2004) [Pubmed]
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