“The One Who Guides” Nigral Neuron Migration

In this issue, Brignani, Raj, et al. show that Netrin-1 from distinct sources controls neuronal migrations into the substantia nigra. Remarkably, one source of Netrin −1 is forebrain axons traversing the midbrain, and this is required for proper GABAergic neuronal migration into the substantia nigra pars reticulata.

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