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[1]. Kerstin B Kaufmann, et al. Gene therapy on the move. EMBO Mol Med. 2013 Nov;5(11):1642-61.
[2]. Jing-E Zhou, et al. ShRNA-mediated silencing of PD-1 augments the efficacy of chimeric antigen receptor T cells on subcutaneous prostate and leukemia xenograft. Biomed Pharmacother. 2021 May;137:111339.
[3]. Y Agata, et al. Expression of the PD-1 antigen on the surface of stimulated mouse T and B lymphocytes. Int Immunol, 8 (1996) 765-772.
[4]. D.M. Pardoll. The blockade of immune checkpoints in cancer immunotherapy. Nat Rev Cancer, 12 (2012) 252-264.
[5]. Janis M Taube, et al. Colocalization of inflammatory response with B7-h1 expression in human melanocytic lesions supports an adaptive resistance mechanism of immune escape. Sci Transl Med, 4 (2012) 127ra37.

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