Fig. 8From: Tumor-derived small extracellular vesicles promote breast cancer progression by upregulating PD-L1 expression in macrophagesSchematic illustration of BC-derived sEVs enhance PD-L1 expression in M2 polarization TAMs by regulating miR-106b-5p/PTEN/AKT/PD-L1 and miR-18a-5p/PIAS3/STAT3/PD-L1 signaling pathways, thus promote BC tumor progressionBack to article page