Chemokine Receptor Dynamics in Cancer Progression

Cancer progression is profoundly influenced by the dynamic regulation of chemokine receptors, a family of G protein-coupled receptors expressed on both tumour and stromal cells. These receptors detect gradients of chemokine ligands, orchestrating directed migration of cancer cells and immune populations into the tumour microenvironment. Beyond cell trafficking, chemokine receptor signalling modulates proliferation, survival pathways, angiogenesis and the formation of metastatic niches. Aberrant expression or activation of receptors such as CXCR1, CXCR2 and CXCR4 can subvert normal homeostatic functions, driving epithelial–mesenchymal transition and fostering immune evasion. The interplay between classical signalling receptors and atypical scavenging receptors further refines chemokine availability, fine-tuning the inflammatory and angiogenic milieu. Understanding these dynamic processes has global significance for the development of targeted therapies that aim to interrupt key receptor–ligand interactions and reprogramme the tumour-promoting microenvironment.

Research from Nature Portfolio

High-resolution cryo-electron microscopy has revealed the structural basis by which CXCR1 engages its canonical ligand in monomeric form, elucidating precise contacts within extracellular loops that confer subtype selectivity. The atomic details of the chemokine–receptor–G protein complex illuminate steric and electrostatic determinants of activation, offering a blueprint for the design of subtype-specific antagonists. Functional analyses of receptor mutants guided by this model are already informing rational drug design, with the aim of blocking receptor activation in cancers driven by aberrant CXCL8 signalling.

Chemokine Receptor Dynamics in Cancer Progression publication trend

The graph below shows the total number of articles in chemokine receptor dynamics in cancer progression across all publications each year (not limited to Nature Index journals).

Technical terms

Chemokine: Small secreted cytokine that directs cellular migration by forming concentration gradients.

Chemokine receptor: Seven-transmembrane G protein-coupled receptor that binds chemokines to trigger intracellular signalling.

Tumour microenvironment: The complex milieu of stromal cells, extracellular matrix and signalling molecules surrounding a tumour.

G protein-coupled receptor (GPCR): Cell surface receptor subclass that activates heterotrimeric G proteins upon ligand binding.

References

1. CXCR2 expression during melanoma tumorigenesis controls transcriptional programs that facilitate tumor growth. Molecular Cancer (2023).
2. The chemokines CXCL8 and CXCL12: molecular and functional properties, role in disease and efforts towards pharmacological intervention. Cellular & Molecular Immunology (2023).
3. Structural basis of CXC chemokine receptor 1 ligand binding and activation. Nature Communications (2023).