CD274 and non-small cell lung carcinoma: In this study, anti‐PD‐1 antibody decreased T cell apoptosis level in the co‐culture of CD3+ T cells and NSCLC cells treated with JQ1 and chemoradiotherapy while adding anti‐PD‐1 antibodies to the combination of JQ1 and chemoradiotherapy might further restrain the negative regulatory effect of PD‐1/PD‐L1 signalling on the anti‐tumour activity of T cells.