Sci. STKE, 31 October 2006
Neuroscience Herding Olfactory Axons
Pamela J. Hines
Science, AAAS, Washington, DC 20005, USA
In the mammalian olfactory system, sensory neurons each express only one odorant receptor, and the axons from neurons that express the same odorant receptor somehow manage to converge on a single glomerulus in the brain. Imai et al. have now brought both clarity and complexity to the problem. Although axon guidance was thought to depend solely on the odorant receptor, it now seems that a separate signaling system involving cyclic adenosine monophosphate (cAMP) contributes to guiding axons to a general position along the anterior-posterior axis.
Citation: P. J. Hines, Herding Olfactory Axons. Sci. STKE 2006, tw372 (2006).
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