New small molecule fluorescent probes for G protein-coupled receptors: valuable tools for drug discovery / Joshua W Conner, Daniel P Poole, Manuela Jörg, Nicholas A Veldhuis

G protein-coupled receptors (GPCRs) are essential signaling proteins and tractable therapeutic targets. To develop new drug candidates, GPCR drug discovery programs require versatile, sensitive pharmacological tools for ligand binding and compound screening. With the availability of new imaging modalities and proximity-based ligand binding technologies, fluorescent ligands offer many advantages and are increasingly being used, yet labeling small molecules remains considerably more challenging relative to peptides. Focusing on recent fluorescent small molecule studies for family A GPCRs, this review addresses some of the key challenges, synthesis approaches and structure–activity relationship considerations, and discusses advantages of using high-resolution GPCR structures to inform conjugation strategies. While no single approach guarantees successful labeling without loss of affinity or selectivity, the choice of fluorophore, linker type and site of attachment have proved to be critical factors that can significantly affect their utility in drug discovery programs, and as discussed, can sometimes lead to very unexpected results. Graphical abstract The fluorescent probe toolbox for GPCRs.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

Erscheinungsort nicht ermittelbar: 2020

Enthalten in:

Future medicinal chemistry

Sprache:

Englisch

Beteiligte Personen:

Conner, Joshua W [VerfasserIn]
Poole, Daniel P [VerfasserIn]
Jörg, Manuela [VerfasserIn]
Veldhuis, Nicholas A [VerfasserIn]

Links:

FID Access [lizenzpflichtig]

Themen:

Drug discovery
Fluorophore
G protein-coupled receptors
Ligand binding
Pharmacology
Receptor trafficking

Umfang:

1 Online-Ressource (28 p)

doi:

10.4155/fmc-2019-0327

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

KFL011087250