Importantly, a phase I trial showed that a strong antigen‐specific T‐cell response was elicited in three patients with low‐dose liposomes.123 Huang and co‐workers developed a lipid/calcium/phosphate (LCP) nanoparticle for the delivery of MUC1 mRNA, a highly expressed tumor‐associated antigen in many cancers. This evidence concerns the gene MUC1 and neoplasm.