CD274 and non-small cell lung carcinoma: Instead, there are conflicting results regarding patients with METex14 NSCLC and PD-L1 expression: one study showed that they are associated with higher PD-L1 score [111], another study documented higher CD8+ T-cell infiltration but no higher PD-L1 levels [112], while another third study found that they did not have high median Tumour mutational burden (mTMB) nor high PD-L1 levels [113].