PDCD1 and neoplasm: In this scenario, doxorubicin‐loaded nanodiscs potentiated a cytotoxic T‐cell response and increased the therapeutic effect of anti‐PD‐1 checkpoint blockade therapy.102 The nanodisc was also used to codeliver CpG and TLR4 agonists and improved antigen‐specific CD8+ T‐cell response by eightfold.103 Furthermore, Zhang and co‐workers developed SR‐B1‐targeting liposomes for delivering a fusion tumor peptide antigen.