Cortical wiring by synapse type–specific control of local protein synthesis

Clémence Bernard, David Exposito-Alonso, Martijn Selten, Stella Sanalidou, Alicia Hanusz-Godoy, Alfonso Aguilera, Fursham Hamid, Fazal Oozeer, Patricia Maeso, Leanne Allison, Matthew Russell, Roland A. Fleck, Beatriz Rico*, Oscar Marín

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)
49 Downloads (Pure)


Neurons use local protein synthesis to support their morphological complexity, which requires independent control across multiple subcellular compartments up to the level of individual synapses. We identify a signaling pathway that regulates the local synthesis of proteins required to form excitatory synapses on parvalbumin-expressing (PV+) interneurons in the mouse cerebral cortex. This process involves regulation of the TSC subunit 2 (Tsc2) by the Erb-B2 receptor tyrosine kinase 4 (ErbB4), which enables local control of messenger RNA {mRNA} translation in a cell type–specific and synapse type–specific manner. Ribosome-associated mRNA profiling reveals a molecular program of synaptic proteins downstream of ErbB4 signaling required to form excitatory inputs on PV+ interneurons. Thus, specific connections use local protein synthesis to control synapse formation in the nervous system.

Original languageEnglish
Issue number6622
Publication statusPublished - 25 Nov 2022


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