CD274 and adenocarcinoma: Multivariate analysis revealed significant correlations of MET overexpression with adenocarcinoma histology (OR: 3.85, 95% CI: 1.58–9.45, p = 0.003), and with high PD-L1 expression (≥50%, OR:12.17, 95% CI: 5.19–31.34, p < 0.001) (Figure 1A).