Cell specific photoswitchable agonist for reversible control of endogenous dopamine receptors

Donthamsetti, Prashant; Winter, Nils; Hoagland, Adam; Stanley, Cherise; Visel, Meike; Lammel, Stephan; Trauner, Dirk und Isacoff, Ehud (2021): Cell specific photoswitchable agonist for reversible control of endogenous dopamine receptors. In: Nature Communications, Bd. 12, Nr. 1, 4775

Abstract

Dopamine controls diverse behaviors and their dysregulation contributes to many disorders. Our ability to understand and manipulate the function of dopamine is limited by the heterogenous nature of dopaminergic projections, the diversity of neurons that are regulated by dopamine, the varying distribution of the five dopamine receptors (DARs), and the complex dynamics of dopamine release. In order to improve our ability to specifically modulate distinct DARs, here we develop a photo-pharmacological strategy using a Membrane anchored Photoswitchable orthogonal remotely tethered agonist for the Dopamine receptor (MP-D). Our design selectively targets D1R/D5R receptor subtypes, most potently D1R (MP-D1(ago)), as shown in HEK293T cells. In vivo, we targeted dorsal striatal medium spiny neurons where the photo-activation of MP-D1(ago) increased movement initiation, although further work is required to assess the effects of MP-D1(ago) on neuronal function. Our method combines ligand and cell type-specificity with temporally precise and reversible activation of D1R to control specific aspects of movement. Our results provide a template for analyzing dopamine receptors. In this study, the authors develop a photo-pharmacological strategy using a Membrane anchored Photoswitchable orthogonal remotely tethered agonist for the Dopamine receptor (MP-D) to selectively and reversibly modulate the D1R receptor subtype.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Chemie und Pharmazie > Department Chemie
• Themengebiete: 500 Naturwissenschaften und Mathematik > 540 Chemie
• ISSN: 2041-1723
• Sprache: Englisch