Clustering of Membrane Receptors: Insights from DNA Origami-Based Approaches

Abstract

Cell signaling enables cells to interpret and respond to their environment, relying on receptor interactions that regulate key biological functions. While receptor-ligand affinity is crucial, receptor clustering plays a central role in modulating signaling efficiency, influenced by factors such as membrane diffusivity, lipid organization, and receptor-receptor interactions. While advances in imaging have long contributed to a better understanding of this fundamental biological mechanism, recent breakthroughs in nanotechnology, particularly the use of DNA origami nanostructures (DONs), now enable the precise manipulation of receptor-ligand interactions. This opens up unprecedented insights into the dynamics of signal transduction at the nanoscale and holds promising potential for innovative therapeutic applications. The examples presented in this article, based on various classes of receptors, illustrate how these groundbreaking developments can not only lead to a more detailed mechanistic understanding, but also pave the way for the development of new molecular therapies.