Remote control of neuronal activity in transgenic mice expressing evolved G protein-coupled receptors.
Examining the behavioral consequences of selective CNS neuronal activation is a powerful tool for elucidating mammalian brain function in health and disease. Newly developed genetic, pharmacological, and optical tools allow activation of neurons with exquisite spatiotemporal resolution; however, the inaccessibility to light of widely distributed neuronal populations and the invasiveness required for activation by light or infused ligands limit the utility of these methods. To overcome these barriers, we created transgenic mice expressing an evolved G protein-coupled receptor (hM3Dq) selectively activated by the pharmacologically inert, orally bioavailable drug clozapine-N-oxide (CNO). Here, we expressed hM3Dq in forebrain principal neurons. Local field potential and single-neuron recordings revealed that peripheral administration of CNO activated hippocampal neurons selectively in hM3Dq-expressing mice. Behavioral correlates of neuronal activation included increased locomotion, stereotypy, and limbic seizures. These results demonstrate a powerful chemical-genetic tool for remotely controlling the activity of discrete populations of neurons in vivo.
Alexander
Georgia M
GM
Department of Neurobiology, Duke University, Durham, NC 27710, USA.
Rogan
Sarah C
SC
Abbas
Atheir I
AI
Armbruster
Blaine N
BN
Pei
Ying
Y
Allen
John A
JA
Nonneman
Randal J
RJ
Hartmann
John
J
Moy
Sheryl S
SS
Nicolelis
Miguel A
MA
McNamara
James O
JO
Roth
Bryan L
BL
D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001921:Brain / Q000166:cytology / Q000378:metabolism; D003024:Clozapine / Q000031:analogs & derivatives / Q000494:pharmacology; D004305:Dose-Response Relationship, Drug; D004318:Doxycycline / Q000494:pharmacology; D005071:Evoked Potentials / Q000187:drug effects / Q000235:genetics; D019143:Evolution, Molecular; D043802:GTP-Binding Protein alpha Subunits, Gq-G11 / Q000235:genetics / Q000378:metabolism*; D015870:Gene Expression / Q000235:genetics*; D006624:Hippocampus / Q000166:cytology; D006801:Humans; D066298:In Vitro Techniques; D008124:Locomotion / Q000187:drug effects / Q000235:genetics; D008564:Membrane Potentials / Q000187:drug effects / Q000235:genetics; D051379:Mice; D008822:Mice, Transgenic; D009474:Neurons / Q000187:drug effects / Q000502:physiology*; D018408:Patch-Clamp Techniques / Q000379:methods; D043562:Receptors, G-Protein-Coupled / Q000235:genetics / Q000378:metabolism*; D013239:Stereotyped Behavior / Q000187:drug effects / Q000502:physiology; D013997:Time Factors
D043562:Receptors, G-Protein-Coupled; D043802:GTP-Binding Protein alpha Subunits, Gq-G11; D003024:Clozapine; C079149:clozapine N-oxide; D004318:Doxycycline