Medicine and Health Sciences Commons^™

Accumbens Cholinergic Interneurons Mediate Cue-Induced Nicotine Seeking And Associated Glutamatergic Plasticity, Jonna M. Leyrer-Jackson, Michael Holter, Paula F. Overby, Jason M. Newbern, Michael D. Scofield, M. Foster Olive, Cassandra D. Gipson

Family and Community Medicine Faculty Publications

Nicotine, the primary addictive substance in tobacco, is widely abused. Relapse to cues associated with nicotine results in increased glutamate release within nucleus accumbens core (NAcore), modifying synaptic plasticity of medium spiny neurons (MSNs), which contributes to reinstatement of nicotine seeking. However, the role of cholinergic interneurons (ChIs) within the NAcore in mediating these neurobehavioral processes is unknown. ChIs represent less than 1% of the accumbens neuronal population and are activated during drug seeking and reward-predicting events. Thus, we hypothesized that ChIs may play a significant role in mediating glutamatergic plasticity that underlies nicotine-seeking behavior. Using chemogenetics in transgenic rats …