Expression and significance of heat shock protein 70 and glucose-regulated protein 94 in human esophageal carcinoma

Table 1 Expression of HSP70 and grp94 in primary esophageal cancer and adjacent normal tissues detected by immunohistochemistry.

Group	HSP70			grp94
	Total	Positive	%	Total	Positive	%
Primary esophageal cancer tissue	78	72	95.0b	78	56	71.8d
Adjacent normal tissue	78	11	14.1b	78	8	10.3d

^bP<0.01 vs group c,

^dP<0.01 vs group d.

Table 2 Relationship between the expression of HSP70 and differentiation of esophageal cancer.

Positive expression (cases)	Differentiation grades of primary esophageal cancers (78)
	HSP70(72)				grp94(56)
	Id	IId	IIId	Adjacent normal tissuesd	I	II	III	Adjacent normal tissues
+	14	5	3	5	5	6	5	3
++	4	12	2	3	6	5	4	3
+++	3	6	6	3	8	3	4	2
++++	1	3	13	0	1	4	5	0

^dP<0.01 vs group d.