Interaction and Attenuation of Tumor-Specific CD8+ T Cell Responses by LRIG1 and VISTA Academic Background In recent years, the importance of immune checkpoint inhibitors (ICIs) such as Programmed Cell Death Protein 1 (PD-1) and Cytotoxic T-Lymphocyte Antigen 4 (CTLA-4) has received increasing attention. These inhibitors significantly improve the s...