A critical role for Piezo2 channels in the mechanotransduction of mouse proprioceptive neurons

Proprioceptors are responsible for the conscious sensation of limb position and movement, muscle tension or force and balance. Recent evidence suggests that Piezo2 is a low threshold mechanosensory receptor in the peripheral nervous system, acting as a transducer for touch sensation and proprioception. Thus, we characterized proprioceptive neurons in the mesencephalic trigeminal nucleus that are involved in processing proprioceptive information from the face and oral cavity. This is a specific population of neurons that produce rapidly adapting mechanically-activated currents that are fully dependent on Piezo2. As such, we analyzed the deficits in balance and coordination caused by the selective deletion of the channel in proprioceptors (conditional knockout). The data clearly shows that Piezo2 fulfills a critical role in a defined homogeneous population of proprioceptor neurons that innervate the head muscles, demonstrating that this ion channel is essential for mammalian proprioceptive mechanotransduction.

• Publication year

  2016

• Venue

  Scientific Reports

• Publication date

  2016-05-17

• Fields of study

  Biology, Medicine

• Identifiers
  DOI 10.1038/srep25923PMID 27184818PMCID 4869095
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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