qPCR analysis of the dissociated tumour cells revealed that the delivery of immRNA‐loaded RBCEVs led to the up‐regulation of Ddx58, Mda5, Mavs, Irf3, Irf7, Ifnb, Rsad2, and Isg56 in the tumours (Figure 4c). The gene discussed is RSAD2; the disease is neoplasm.