Spatiotemporal modeling of GPCR signaling: The role of endosomal dynamics and receptor recycling

The useful part

The kinetics and spatial localization of these signals are critical determinants of cellular responses, yet receptor trafficking. remains a pivotal but often overlooked component of theoretical GPCR models. Although only a small fraction of FSHRs is internalized, these receptors produce a highly active endosomal response, underscoring the strong effect that any drug perturbing receptor trafficking can have.

How it works

• Our approach thus provides a refined tool for the pharmacological characterization of ligands and advances understanding of the spatial organization of FSHR signaling.
• Here, we present a generic GPCR dynamic model that explicitly integrates receptor trafficking and signaling compartmentalization, enabling systematic characterization of the role of endosomal dynamics and...
• Beyond this specific receptor, the methodology offers a generalizable strategy for modeling GPCR trafficking dynamics.

Details worth keeping

including internalization, endosomal sorting, and recycling.