ACTA1 and gastric cancer: As factors involved in the prognosis of gastric cancer, according to univariate analysis, T factor (P = .0001), N factor (P = .0001), v (P = .0023), αSMA expression in the invasive, central, and whole portions, and CD271 expression in invasive, central, and whole portions (P = .0028, .0041, and .0106, respectively) were significant prognostic factors.