Loss of myeloid-related proteins 8 and myeloid-related proteins 14 expression in human esophageal squamous cell carcinoma correlates with poor differentiation

Table 1 Summary of immunohistochemical analysis of MRP8 and MRP14 in esophageal epithelium and tumors. (Fisher’s exact test)

ExpressionLevel1	MRP8			MRP14
	Normal (%)	Tumors (%)	P-value	Normal (%)	Tumors (%)	P-value
3+	29(44.6)	14(21.5)	< 0.01b	60(92.3)	24(36.9) < 0.01d
2+	32(49.2)	29(44.6)		3(4.6)	21(32.3)
1+	0(0)	6(9.2)		0(0)	9(13.8)
0	4(6.2)	16(24.6)		2(3.1)	11(16.9)

¹3+, ≥ 50%; 2+, ≥ 5% and < 50%; 1+, < 5%; 0, negative;

^bP < 0.01 vs normal tissues;

^dP < 0.01 vs normal tissues.