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Borroto-Escuela DO, Wydra K, Li X, Rodriguez D, Carlsson J, Jastrzębska J, Filip M, Fuxe K. Disruption of A2AR-D2R Heteroreceptor Complexes After A2AR Transmembrane 5 Peptide Administration Enhances Cocaine Self-Administration in Rats. Mol Neurobiol 2018; 55:7038-7048. [PMID: 29383683 PMCID: PMC6061166 DOI: 10.1007/s12035-018-0887-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 01/08/2018] [Indexed: 12/15/2022]
Abstract
Antagonistic allosteric A2AR-D2R receptor-receptor interactions in heteroreceptor complexes counteract cocaine self-administration and cocaine seeking in rats as seen in biochemical and behavioral experiments. It was shown that the human A2AR transmembrane five (TM5) was part of the interface of the human A2AR-D2R receptor heteromer. In the current paper, the rat A2AR synthetic TM5 (synthTM5) peptide disrupts the A2AR-D2R heteroreceptor complex in HEK293 cells as shown by the bioluminescence resonance energy transfer method. Rat A2AR synthTM5 peptide, microinjected into the nucleus accumbens, produced a complete counteraction of the inhibitory effects of the A2AR agonist CGS21680 on cocaine self-administration. It was linked to a disappearance of the accumbal A2AR-D2R heteroreceptor complexes and the A2AR agonist induced inhibition of D2R recognition using proximity ligation assay and biochemical binding techniques. However, possible effects of the A2AR synthTM5 peptide on accumbal A2AR-D3R and A2AR-D4R heteroreceptor complexes remain to be excluded. Evidence is provided that accumbal A2AR-D2R-like heteroreceptor complexes with their antagonistic receptor-receptor interactions can be major targets for treatment of cocaine use disorder.
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Affiliation(s)
- Dasiel O. Borroto-Escuela
- Department of Neuroscience, Karolinska Institutet, Retzius väg 8, 17177 Stockholm, Sweden
- Department of Biomolecular Science, Section of Physiology, University of Urbino, Campus Scientifico Enrico Mattei, via Ca’ le Suore 2, 61029 Urbino, Italy
- Observatorio Cubano de Neurociencias, Grupo Bohío-Estudio, Zayas 50, 62100 Yaguajay, Cuba
| | - Karolina Wydra
- Institute of Pharmacology, Department of Drug Addiction Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland
| | - Xiang Li
- Department of Neuroscience, Karolinska Institutet, Retzius väg 8, 17177 Stockholm, Sweden
- College of Life Sciences, Jilin University, Qianjin Street No. 2699, Changchun, 130012 China
| | - David Rodriguez
- Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, SE-106 91 Stockholm, Sweden
- Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University BMC, Box 596, 751 24 Uppsala, Sweden
| | - Jens Carlsson
- Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, SE-106 91 Stockholm, Sweden
- Science for Life Laboratory, Department of Cell and Molecular Biology, Uppsala University BMC, Box 596, 751 24 Uppsala, Sweden
| | - Joanna Jastrzębska
- Institute of Pharmacology, Department of Drug Addiction Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland
| | - Malgorzata Filip
- Institute of Pharmacology, Department of Drug Addiction Pharmacology, Polish Academy of Sciences, 12 Smetna Street, 31-343 Kraków, Poland
| | - Kjell Fuxe
- Department of Neuroscience, Karolinska Institutet, Retzius väg 8, 17177 Stockholm, Sweden
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