Ligand-regulated ACKR3 nanoclustering shapes CXCR4 signaling at the plasma membrane
This study demonstrates that ligand binding drives ACKR3 to form nanoclusters on T cells, which actively organize CXCR4 into heterocomplexes to attenuate CXCR4-mediated Gαi signaling, revealing a novel mechanism by which ACKR3 fine-tunes chemokine responses beyond its role as a scavenger.