circPLEKHM1 expression was higher in tumor-infiltrated M2 macrophages than in M1 macrophages isolated from lung cancer metastases in a mouse model. The study links this circPLEKHM1/PABPC1/eIF4G complex to OSMR translation and M2 macrophage polarization during lung cancer metastasis.
Hypoxic Exosomal circPLEKHM1-Mediated Crosstalk between Tumor Cells and Macrophages Drives Lung Cancer Metastasis.