[Expression of heat shock protein-70, estrogen receptor and progesterone receptor in ovarian carcinomas and the correlation between HSP70 and sex steroid receptor].

OBJECTIVE: This study was aimed to determine the expression of HSP70, ER and PR in ovarian carcinomas and to explore the relationship between HSP70 and sex steroid receptor. METHODS: The immunohistochemical way SP was performed to estimate the expression of HSP70, ER and PR in 41 cases of ovarian carcinomas and in 11 cases of normal ovarian tissue. RESULTS: The positive staining rate of HSP70 was 68.29% (28/41), which was remarkably higher than that in normal ovarian tissue (18.18%) (P<0.05). Furthermore, the expression rate of HSP70 was much higher in poorly differentiated ovarian carcinomas than in well differentiated ovarian carcinomas (P<0.05). ER positive staining was observed in 19 cases (46.34%), and PR in 24 cases (58.54%). ER and PR positive staining occurred more frequently in the group of HSP70 negative staining than in the group of HSP70 positive staining. related with the expression of PR (P<0.05). CONCLUSION: The expression of HSP70 was negatively related with the expression of PR (P<0.05).