CD274 and non-small cell lung carcinoma: Since we have been interested in the comparative analysis between EGF‐ and IFNγ‐induced PD‐L1 expression in NSCLC cell lines, we assessed EGF‐ and IFNγ‐induced PD‐L1 expression in several NSCLC cell lines but found only one cell line, LC‐2/ad, which showed clear enhancement in PD‐L1 expression by both EGF and IFNγ.