Expression of Fas ligand and Caspase-3 contributes to formation of immune escape in gastric cancer

Table 1 Expression of FasL and Caspase-3 in adjacent epithelial cells, cancer cells of primary and metastatic foci of gastric cancer

	n	FasL expression			Caspase-3 expression
		-	+~+++	PR(%)	-	+~+++	PR(%)
Adjacent epithelial cells	113	74	39	34.51	56	57	50.44
Cancer cells of primary foci	113	52	61	53.98a	76	37	32.74b
Cancer cells of metastatic foci	43	21	22	51.16c	18	25	58.14d

^aP = 0.003 (χ² = 8.681, Pearson’ R = 0.176), vs adjacent epithelial cells;

^bP = 0.007 (χ² = 7.286, Pearson’ R = 0.180) , vs adjacent epithelial cells;

^cP = 0.003 (χ² = 9.907, Pearson’R = 0.245), vs cancer cells of the corresponding primary foci;

^dP = 0.031 (χ² = 4.638, Pearson’R = 0.239), vs cancer cells of the corresponding primary foci; PR, positive rate.