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Cancer immunotherapy requires effective antigen carriers to deliver antigen into the cytosol of dendritic cells (DCs),which induces antigen-specific cellular immune responses.Our previous study showed that pH-sensitive polymer modified-liposomes are effective antigen carriers to induce cellular immune responses [1].For practical antigen carrier,it is important not only to deliver antigen,but also to activate DCs (adjuvant effect).Activated DCs lead efficient antigen presentation and induce strong cellular immune responses.