%0 Journal Article %T Involvement of Indoleamine 2,3-Dioxygenase in Impairing Tumor-Infiltrating CD8+ T-Cell Functions in Esophageal Squamous Cell Carcinoma %A Ge Zhang %A Wan-Li Liu %A Lin Zhang %A Jun-Ye Wang %A Miao-Huan Kuang %A Peng Liu %A Yue-Hao Lin %A Shu-Qin Dai %A Jun Du %J Clinical and Developmental Immunology %D 2011 %I Hindawi Publishing Corporation %R 10.1155/2011/384726 %X The indoleamine 2,3-dioxygenase-(IDO-) mediated microenvironment plays an important role in tumor immune escape. However, the inhibitory effects of IDO on the CD8 %U http://www.hindawi.com/journals/cdi/2011/384726/