Moreover, gastric cancer tissue and matched peritumor normal gastric tissue (n = 78, respectively) were collected and detected for KMT2A expression using IHC assay, and the result showed that KMT2A was highly expressed in cancer tissues, compared to matched normal tissues (P < 0.01), consistent with the result from TCGA dataset analysis (Figure 1b and c). The gene discussed is KMT2A; the disease is gastric cancer.