CXCR2

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tumor-microenvironment

CXCR2 is a G protein-coupled receptor for CXC chemokines, including IL-8, expressed predominantly on neutrophils and other myeloid cells. Ligand binding activates downstream intracellular signaling cascades (such as PI3K/AKT/RhoA) that drive chemotaxis and phenotypic changes in the receiving cell.

Source papers

  • Stromal-Derived IL-8 Promotes M2 Macrophage Polarization via the RhoA/MRTF-A/SRF Transcriptional Axis to Impair CD8+ T Cell Cytotoxicity in Lung Cancer Xuyu Gu, Qiyu Fang, Jia Yu, Ting Yu, Huashan Shi, Kaiqi Jin, Lei Jiang, Wentian Zhang · 2026 doi:10.1002/advs.202508001