CD274 and non-small cell lung carcinoma: Previous studies have suggested that PD‐L1 expression in NSCLC cells is enhanced by increasing stiffness.[19] However, our findings demonstrate that both H1299 cells (Figure 3b; Figure S12a, d, Supporting Information) and H1975 cells (Figure S13a,b,d, Supporting Information) exhibit the highest PD‐L1 expression on 14 kPa hydrogel.