TMEM200A and gastric cancer: Subsequently, the TCGA dataset of 27 paired GC and adjacent tissues (p < 0.01) (Figure 2C) and the GSE54129 (p < 0.05) (Figure 2D) and GEE66229 (p < 0.01) (Figure 2E) datasets also found that TMEM200A was significantly elevated in GC.