MYH9 and esophageal cancer: In vitro, the results of western blot analysis showed that knockdown of MYH9 abrogated the alteration of the expression of β‐catenin/c‐Myc pathway biomarkers regulated by PGK1‐overexpression (Figure 4K), and there was no obvious effect of PGK1 overexpression on MYH9 expression in esophageal cancer cells (Figure S4H).