CD274 and gastric cancer: To investigate the role of PD‐L1 in NUTM2A‐AS1‐ and miR‐376a‐regulated gastric cancer tumorigenesis and drug resistance, we overexpressed PD‐L1 in shNUTM2A‐AS1‐1‐ and miR‐376a mimic‐expressed HGC‐27 cells (Figure 6A).