Programmed death-1 upregulation is correlated with dysfunction of tumor-infiltrating CD8+ T lymphocytes in human non-small cell lung cancer

PD-1 and Its Ligands in Tolerance and Immunity

(2008) Mary E. Keir et al.   Annual Review of Immunology

Functional Restoration of HCV-Specific CD8 T Cells by PD-1 Blockade Is Defined by PD-1 Expression and Compartmentalization

(2008) Nobuhiro Nakamoto et al.   GASTROENTEROLOGY

Enhancing therapeutic vaccination by blocking PD-1–mediated inhibitory signals during chronic infection

(2008) Sang-Jun Ha et al.   JOURNAL OF EXPERIMENTAL MEDICINE

IL-10 blockade facilitates DNA vaccine-induced T cell responses and enhances clearance of persistent virus infection

(2008) David G. Brooks et al.   JOURNAL OF EXPERIMENTAL MEDICINE

Coregulation of CD8+ T cell exhaustion by multiple inhibitory receptors during chronic viral infection

(2008) Shawn D Blackburn et al.   NATURE IMMUNOLOGY

Chemopreventive agents induce programmed death-1-ligand 1 (PD-L1) surface expression in breast cancer cells and promote PD-L1-mediated T cell apoptosis

(2007) Ping Zhang et al.   MOLECULAR IMMUNOLOGY