Efficient optogenetic silencing of neurotransmitter release with a mosquito rhodopsin

Mahn M, Saraf-Sinik I, Patil P, Pulin M, Bitton E, Karalis N, Bruentgens F, Palgi S, Gat A, Dine J, Wietek J, Davidi I, Levy R, Litvin A, Zhou F, Sauter K, Schmitz D, Luthi A, Rost BR, Wiegert JS, Yizhar O, Soba P (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Neuron Elsevier (Cell Press)

Book Volume: 109

Pages Range: 1621-1635.e8

Journal Issue: 10

DOI: 10.1016/j.neuron.2021.03.013

Abstract

Information is carried between brain regions through neurotransmitter release from axonal presynaptic terminals. Understanding the functional roles of defined neuronal projection pathways requires temporally precise manipulation of their activity. However, existing inhibitory optogenetic tools have low efficacy and off-target effects when applied to presynaptic terminals, while chemogenetic tools are difficult to control in space and time. Here, we show that a targeting-enhanced mosquito homolog of the vertebrate encephalopsin (eOPN3) can effectively suppress synaptic transmission through the Gi/o signaling pathway. Brief illumination of presynaptic terminals expressing eOPN3 triggers a lasting suppression of synaptic output that recovers spontaneously within minutes in vitro and in vivo. In freely moving mice, eOPN3-mediated suppression of dopaminergic nigrostriatal afferents induces a reversible ipsiversive rotational bias. We conclude that eOPN3 can be used to selectively suppress neurotransmitter release at presynaptic terminals with high spatiotemporal precision, opening new avenues for functional interrogation of long-range neuronal circuits in vivo.

Authors with CRIS profile

Peter Soba

Involved external institutions

Weizmann Institute of Science IL Israel (IL) Universitätsklinikum Hamburg-Eppendorf (UKE) DE Germany (DE) Friedrich Miescher Institute for Biomedical Research (FMI) CH Switzerland (CH) Charité - Universitätsmedizin Berlin DE Germany (DE) Deutsches Zentrum für Neurodegenerative Erkrankungen (DZNE) DE Germany (DE)

How to cite

APA:

Mahn, M., Saraf-Sinik, I., Patil, P., Pulin, M., Bitton, E., Karalis, N.,... Soba, P. (2021). Efficient optogenetic silencing of neurotransmitter release with a mosquito rhodopsin. Neuron, 109(10), 1621-1635.e8. https://doi.org/10.1016/j.neuron.2021.03.013

MLA:

Mahn, Mathias, et al. "Efficient optogenetic silencing of neurotransmitter release with a mosquito rhodopsin." Neuron 109.10 (2021): 1621-1635.e8.

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