Spatial control of membrane receptor function using ligand nanocalipers.

Shaw A, Lundin V, Petrova E, Fördős F, Benson E, Al-Amin A, Herland A, Blokzijl A, Högberg B, Teixeira AI

Nat. Methods 11 (8) 841-846 [2014-08-00; online 2014-07-06]

The spatial organization of membrane-bound ligands is thought to regulate receptor-mediated signaling. However, direct regulation of receptor function by nanoscale distribution of ligands has not yet been demonstrated, to our knowledge. We developed rationally designed DNA origami nanostructures modified with ligands at well-defined positions. Using these 'nanocalipers' to present ephrin ligands, we showed that the nanoscale spacing of ephrin-A5 directs the levels of EphA2 receptor activation in human breast cancer cells. Furthermore, we found that the nanoscale distribution of ephrin-A5 regulates the invasive properties of breast cancer cells. Our ligand nanocaliper approach has the potential to provide insight into the roles of ligand nanoscale spatial distribution in membrane receptor-mediated signaling.

Erik Benson

SciLifeLab Fellow

PubMed 24997862

DOI 10.1038/nmeth.3025

Crossref 10.1038/nmeth.3025

pii: nmeth.3025

Publications 9.5.0