CRF modulation of central monoaminergic function: Implications for sex differences in alcohol drinking and anxiety

TitleCRF modulation of central monoaminergic function: Implications for sex differences in alcohol drinking and anxiety
Publication TypeJournal Article
Year of Publication2018
AuthorsPleil KE, Skelly MJane
JournalAlcohol
Volume72
Pagination33-47
Date Published2018 Nov
ISSN1873-6823
KeywordsAlcohol Drinking, Alcohol-Related Disorders, Anxiety, Anxiety Disorders, Binge Drinking, Biogenic Monoamines, Corticotropin-Releasing Hormone, Dopamine, Estradiol, Female, Humans, Male, Neural Pathways, Neurons, Norepinephrine, Septal Nuclei, Serotonin, Sex Factors
Abstract

Decades of research have described the importance of corticotropin-releasing factor (CRF) signaling in alcohol addiction, as well as in commonly co-expressed neuropsychiatric diseases, including anxiety and mood disorders. However, CRF signaling can also acutely regulate binge alcohol consumption, anxiety, and affect in non-dependent animals, possibly via modulation of central monoaminergic signaling. We hypothesize that basal CRF tone is particularly high in animals and humans with an inherent propensity for high anxiety and alcohol consumption, and thus these individuals are at increased risk for the development of alcohol use disorder and comorbid neuropsychiatric diseases. The current review focuses on extrahypothalamic CRF circuits, particularly those stemming from the bed nucleus of the stria terminalis (BNST), found to play a role in basal phenotypes, and examines whether the intrinsic hyperactivity of these circuits is sufficient to escalate the expression of these behaviors and steepen the trajectory of development of disease states. We focus our efforts on describing CRF modulation of biogenic amine neuron populations that have widespread projections to the forebrain to modulate behaviors, including alcohol and drug intake, stress reactivity, and anxiety. Further, we review the known sex differences and estradiol modulation of these neuron populations and CRF signaling at their synapses to address the question of whether females are more susceptible to the development of comorbid addiction and stress-related neuropsychiatric diseases because of hyperactive extrahypothalamic CRF circuits compared to males.

DOI10.1016/j.alcohol.2018.01.007
Alternate JournalAlcohol
PubMed ID30217435
PubMed Central IDPMC6141347
Grant ListR00 AA023559 / AA / NIAAA NIH HHS / United States
R13 AA017581 / AA / NIAAA NIH HHS / United States