Journal for ImmunoTherapy of Cancer
GTPase RAB31 supports ANXA1-driven macrophage education through clathrin-mediated endocytosis to suppress antitumor immunity
Background Tumor-associated macrophages (TAMs) play pivotal roles in shaping the tumor-microenvironment (TME) through functional plasticity, which is regulated by extrinsic and intrinsic signals. However, the role of vesicular trafficking in TAMs remains poorly understood. RAB31, a small GTPase enriched in myeloid cells, was proposed as a potential regulator of TAM polarization through clathrin-mediated endocytosis (CME). We hypothesized that RAB31 modulates TAM education by tumor-derived signals and thereby shapes …