Sleep-active neuron specification and sleep induction require FLP-11 neuropeptides to systemically induce sleep

  1. Michal Turek
  2. Judith Besseling
  3. Jan-Philipp Spies
  4. Sabine König
  5. Henrik Bringmann  Is a corresponding author
  1. Max Planck Institute for Biophysical Chemistry, Germany

Abstract

Sleep is an essential behavioral state. It is induced by conserved sleep-active neurons that express GABA. However, little is known about how sleep neuron function is determined and how sleep neurons change physiology and behavior systemically. Here, we investigated sleep in C. elegans, which is induced by the single sleep-active neuron RIS. We found that the transcription factor LIM-6, which specifies GABAergic function, in parallel determines sleep neuron function through the expression of APTF-1, which specifies the expression of FLP-11 neuropeptides. Surprisingly FLP-11, and not GABA, is the major component that determines the sleep-promoting function of RIS. FLP-11 is constantly expressed in RIS. At sleep onset RIS depolarizes and releases FLP-11 to induce a systemic sleep state.

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Author details

  1. Michal Turek

    Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
    Competing interests
    The authors declare that no competing interests exist.
  2. Judith Besseling

    Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
    Competing interests
    The authors declare that no competing interests exist.
  3. Jan-Philipp Spies

    Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
    Competing interests
    The authors declare that no competing interests exist.
  4. Sabine König

    Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
    Competing interests
    The authors declare that no competing interests exist.
  5. Henrik Bringmann

    Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
    For correspondence
    henrik.bringmann@mpibpc.mpg.de
    Competing interests
    The authors declare that no competing interests exist.

Copyright

© 2016, Turek et al.

This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.

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  1. Michal Turek
  2. Judith Besseling
  3. Jan-Philipp Spies
  4. Sabine König
  5. Henrik Bringmann
(2016)
Sleep-active neuron specification and sleep induction require FLP-11 neuropeptides to systemically induce sleep
eLife 5:e12499.
https://doi.org/10.7554/eLife.12499

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https://doi.org/10.7554/eLife.12499