Matches in SemOpenAlex for { <https://semopenalex.org/work/W2887675009> ?p ?o ?g. }
- W2887675009 endingPage "2100" @default.
- W2887675009 startingPage "2086" @default.
- W2887675009 abstract "The dopamine (DA) D2 receptor (D2R) is an important target for the treatment of neuropsychiatric disorders such as schizophrenia and Parkinson's disease. However, the development of improved therapeutic strategies has been hampered by our incomplete understanding of this receptor's downstream signaling processes in vivo and how these relate to the desired and undesired effects of drugs. D2R is a G protein-coupled receptor (GPCR) that activates G protein-dependent as well as non-canonical arrestin-dependent signaling pathways. Whether these effector pathways act alone or in concert to facilitate specific D2R-dependent behaviors is unclear. Here, we report on the development of a D2R mutant that recruits arrestin but is devoid of G protein activity. When expressed virally in indirect pathway medium spiny neurons (iMSNs) in the ventral striatum of D2R knockout mice, this mutant restored basal locomotor activity and cocaine-induced locomotor activity in a manner indistinguishable from wild-type D2R, indicating that arrestin recruitment can drive locomotion in the absence of D2R-mediated G protein signaling. In contrast, incentive motivation was enhanced only by wild-type D2R, signifying a dissociation in the mechanisms that underlie distinct D2R-dependent behaviors, and opening the door to more targeted therapeutics." @default.
- W2887675009 created "2018-08-22" @default.
- W2887675009 creator A5003815380 @default.
- W2887675009 creator A5022343281 @default.
- W2887675009 creator A5022694742 @default.
- W2887675009 creator A5023901317 @default.
- W2887675009 creator A5030446532 @default.
- W2887675009 creator A5037467866 @default.
- W2887675009 creator A5051549942 @default.
- W2887675009 creator A5059908707 @default.
- W2887675009 creator A5076865147 @default.
- W2887675009 creator A5088619015 @default.
- W2887675009 date "2018-08-17" @default.
- W2887675009 modified "2023-10-17" @default.
- W2887675009 title "Arrestin recruitment to dopamine D2 receptor mediates locomotion but not incentive motivation" @default.
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