CD274 and neoplasm: CRISPR/Cas9 inactivation of Cd274 (PD-L1) in implanted B16-F10 cells (Supplementary Fig. S2c, Supplemental digital content 2, http://links.lww.com/MR/A276) did not result in a slower tumor growth but it did improve the faster growth induced by entinostat in parental B16-F10 cells.