CD274 and AIDS dementia complex: We selected three positive clones, respectively, from the SCC and ADC cell lines (PD-L1-3, PD-L1-6, and PD-L1-7 from H2170; PD-L1-16, PD-L1-17, and PD-L1-22 from H1299) for the colony formation, migration, and invasion assays.