Journal
CURRENT OPINION IN PHARMACOLOGY
Volume 32, Issue -, Pages 16-22Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.coph.2016.10.004
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Funding
- Swedish Medical Research Council [04X-715]
- Hjarnfonden AFA Forsakring [FO2016-0302, 130328]
- DOB-E
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The D2R is a hub receptor interacting with a large number of other GPCRs. A2AR activation of the antagonistic A2AR-D2R interaction not only leads to inhibition of the Gi/o signaling but also to an increase in beta-arrestin2 signaling over the D2R protomer. Hallucinogenic 5-HT2AR agonists can produce a biased agonist state at the 5-HT2AR protomer of D2R-5-HT2AR heteroreceptor complexes with increased D2R recognition and Gi/o mediated signaling. Allosteric receptor receptor interactions in D2-NTR1 heteroreceptor complexes inhibit D2R function and can switch G protein coupling. These large numbers of D2R heterocomplexes and their allosteric receptor-receptor interactions produce a marked increase in diversity and bias of the participating D2R protomers opening a promised land for drug development in schizophrenia, addiction and Parkinson's disease.
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