(Al-Khami et al., 2017; Puthenveetil and Dubey, 2020; Su et al., 2020) In mouse models of liver metastasis, Yang et al. demonstrated that tumor cells release fatty acid-loaded vesicles that are captured and internalized through the lipid transporter CD36 on CD206+ metastasis associated macrophages (MAMs). The gene discussed is MRC1; the disease is neoplasm.