Sonic Hedgehog Signaling and Hippocampal Neuroplasticity

Pamela J. Yao, Ronald S. Petralia, Mark P. Mattson

Research output: Contribution to journalReview article


Sonic hedgehog (Shh) is a secreted protein that controls the patterning of neural progenitor cells, and their neuronal and glial progeny, during development. Emerging findings suggest that Shh also has important roles in the formation and plasticity of neuronal circuits in the hippocampus, a brain region of fundamental importance in learning and memory. Shh mediates activity-dependent and injury-induced hippocampal neurogenesis. Activation of Shh receptors in the dendrites of hippocampal neurons engages a trans-neuronal signaling pathway that accelerates axon outgrowth and enhances glutamate release from presynaptic terminals. Impaired Shh signaling may contribute to the pathogenesis of several developmental and adult-onset neurological disorders that affect the hippocampus, suggesting a potential for therapeutic interventions that target Shh pathways.

Original languageEnglish (US)
Pages (from-to)840-850
Number of pages11
JournalTrends in Neurosciences
Issue number12
StatePublished - Dec 1 2016

ASJC Scopus subject areas

  • Neuroscience(all)

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