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2018-12-14
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/177682

Identification of a Tool Compound to Study the Mechanisms of Functional Selectivity between D-2 and D-3 Dopamine Receptors

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https://doi.org/10.1021/acsomega.8b02509

Resum

The search for synthetic selective compounds for G-protein-coupled receptors has provided a myriad of molecules with high selectivity and therapeutic potential. In some cases, however, selectivity is difficult to obtain. For instance, the selectivity ratio is relatively low for compounds acting on D2 and D3 dopamine receptors, which are targets of neurodegenerative diseases such as Parkinson's and Huntington's. From a therapeutic point of view, it is of interest the relative recent discovery of biased agonism, which is characterized by different signaling pathways engaged by different compounds acting on a given receptor. The aim of this paper was to investigate whether new piribedil-derived compounds could display higher selectivity for D2 or D3 receptor and/or provide biased signaling. The results show that selectivity was not different, but that one of the molecules described here, 5-((4-(pyrimidin-2-yl)piperazin-1-yl)methyl)quinolin-8-ol (10), does engage Gi-mediated signaling via D2 or D3 receptors, whereas it does not activate the mitogen-activated-protein kinase pathway, which is usually activated by dopamine receptor agonists.

Matèries

Proteïnes G, Malalties neurodegeneratives

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G Proteins, Neurodegenerative Diseases

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Articles publicats en revistes (Bioquímica i Biomedicina Molecular)

Citació

REYES RESINA, Irene, SAMADI, Abdelouahid, NAVARRO BRUGAL, Gemma, SAADEH, Haythem a., KHASAWNEH, Mohammad a., MESTRES, Jordi, MARCO CONTELLES, Jose, FRANCO FERNÁNDEZ, Rafael. Identification of a Tool Compound to Study the Mechanisms of Functional Selectivity between D-2 and D-3 Dopamine Receptors. _ACS Omega _. 2018. Vol. 3, núm. 12, pàgs. 17368-17375. [consulta: 23 de gener de 2026]. ISSN: 2470-1343. [Disponible a: https://hdl.handle.net/2445/177682]

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