CD274 and cancer: A Bouillez reported that MUC1-C can drives the transcription of CD274 in tumor cells through NF-κBp65 or C-MYC on the PD-L1 promoter, resulting in integrating PD-L1 activation on cancer cells with suppression of immune effectors on T cells and then helping cancer cells immune evasion and poor clinical outcome [31, 39].