Tuning photochromic ion channel blockers

Alexandre Mourot, Michael A. Kienzler, Matthew R. Banghart, Timm Fehrentz, Florian M E Huber, Marco Stein, Richard H. Kramer, Dirk Trauner

Research output: Contribution to journalArticle

Abstract

Photochromic channel blockers provide a conceptually simple and convenient way to modulate neuronal activity with light. We have recently described a family of azobenzenes that function as tonic blockers of Kv channels but require UV-A light to unblock and need to be actively switched by toggling between two different wavelengths. We now introduce red-shifted compounds that fully operate in the visible region of the spectrum and quickly turn themselves off in the dark. Furthermore, we have developed a version that does not block effectively in the dark-adapted state, can be switched to a blocking state with blue light, and reverts to the inactive state automatically. Photochromic blockers of this type could be useful for the photopharmacological control of neuronal activity under mild conditions.

Original languageEnglish (US)
Pages (from-to)536-543
Number of pages8
JournalACS Chemical Neuroscience
Volume2
Issue number9
DOIs
StatePublished - Jun 9 2011

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Ion Channels
Tuning
Light
Ultraviolet Rays
Wavelength
azobenzene

Keywords

  • Azobenzenes
  • Ion channel blockers
  • Photochromic molecules
  • Photopharmacology
  • Voltage-gated potassium channels

ASJC Scopus subject areas

  • Physiology
  • Biochemistry
  • Cognitive Neuroscience
  • Cell Biology

Cite this

Mourot, A., Kienzler, M. A., Banghart, M. R., Fehrentz, T., Huber, F. M. E., Stein, M., ... Trauner, D. (2011). Tuning photochromic ion channel blockers. ACS Chemical Neuroscience, 2(9), 536-543. https://doi.org/10.1021/cn200037p

Tuning photochromic ion channel blockers. / Mourot, Alexandre; Kienzler, Michael A.; Banghart, Matthew R.; Fehrentz, Timm; Huber, Florian M E; Stein, Marco; Kramer, Richard H.; Trauner, Dirk.

In: ACS Chemical Neuroscience, Vol. 2, No. 9, 09.06.2011, p. 536-543.

Research output: Contribution to journalArticle

Mourot, A, Kienzler, MA, Banghart, MR, Fehrentz, T, Huber, FME, Stein, M, Kramer, RH & Trauner, D 2011, 'Tuning photochromic ion channel blockers', ACS Chemical Neuroscience, vol. 2, no. 9, pp. 536-543. https://doi.org/10.1021/cn200037p
Mourot A, Kienzler MA, Banghart MR, Fehrentz T, Huber FME, Stein M et al. Tuning photochromic ion channel blockers. ACS Chemical Neuroscience. 2011 Jun 9;2(9):536-543. https://doi.org/10.1021/cn200037p
Mourot, Alexandre ; Kienzler, Michael A. ; Banghart, Matthew R. ; Fehrentz, Timm ; Huber, Florian M E ; Stein, Marco ; Kramer, Richard H. ; Trauner, Dirk. / Tuning photochromic ion channel blockers. In: ACS Chemical Neuroscience. 2011 ; Vol. 2, No. 9. pp. 536-543.
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