Provided herein are methods for adoptive cell transfer for the treatment of cancer, comprising administering a therapeutically effective amount of immune cells having antitumor activity to a subject, wherein the immune cells are contacted with a protein transduction domain (PTD)-MYC fusion polypeptide prior to administration to the subject. In some embodiments, the PTD-MYC fusion polypeptide comprises: (i) an HIV TAT protein transduction domain； and (ii) a MYC polypeptide sequence.
