Fine-tuned photochromic sulfonylureas for optical control of beta cell Ca2+ fluxes.
Diabet Med
; 40(12): e15220, 2023 12.
Article
en En
| MEDLINE
| ID: mdl-37669696
ABSTRACT
We previously developed, synthesized and tested light-activated sulfonylureas for optical control of KATP channels and pancreatic beta cell activity in vitro and in vivo. Such technology relies on installation of azobenzene photoswitches onto the sulfonylurea backbone, affording light-dependent isomerization, alteration in ligand affinity for SUR1 and hence KATP channel conductance. Inspired by molecular dynamics simulations and to further improve photoswitching characteristics, we set out to develop a novel push-pull closed ring azobenzene unit, before installing this on the sulfonylurea glimepiride as a small molecule recipient. Three fine-tuned, light-activated sulfonylureas were synthesized, encompassing azetidine, pyrrolidine and piperidine closed rings. Azetidine-, pyrrolidine- and piperidine-based sulfonylureas all increased beta cell Ca2+ -spiking activity upon continuous blue light illumination, similarly to first generation JB253. Notably, the pyrrolidine-based sulfonylurea showed superior switch OFF performance to JB253. As such, third generation sulfonylureas afford more precise optical control over primary pancreatic beta cells, and showcase the potential of pyrrolidine-azobenzenes as chemical photoswitches across drug classes.
Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Azetidinas
/
Células Secretoras de Insulina
Idioma:
En
Revista:
Diabet Med
Asunto de la revista:
ENDOCRINOLOGIA
Año:
2023
Tipo del documento:
Article