[Expression of survivin, bcl-2 in cervical carcinoma and its association with HPV16/18 infection].

OBJECTIVE

To investigate the expression and the correlation of surviving, bcl-2 and HPV16/18 in cervical carcinoma.

METHODS

Hybridization in situ was used to detect the expression of survivin mRNA and HPV16/18 DNA in 74 cases of CIN and 81 cases of cervical carcinoma and 20 cases of normal cervical tissues. And immunohistochemical analysis was used to detect the expression of bcl-2 protein.

RESULTS

The positive rates of survivin mRNA, bcl-2 and HPV16/18 in CIN were 44.6%, 39.2% and 41.0% respectively versus 77.8%, 70.4% and 81.2% in cervical carcinoma. The above three indices gradually rose in normal cervical tissue, CIN and cervical carcinoma. The expression of survivin and bcl-2 in CINIII were obviously higher than those in CINI/II. And it was obviously higher in cervical carcinoma with stage IIb-III than those in stage I-IIa. And it was also obviously higher in cervical carcinoma with a poor differentiation than those with a good or medium differentiation. The expression of survivin in cervical carcinoma with lymphatic metastasis was significantly higher than that without lymphatic metastasis. There were no relationship between the expression of survivin or bcl-2 and the pathological type or tumor type of cervical carcinoma. The infection of HPV16/18 also had nothing to do with the clinical stage or pathological type or tumor type of cervical carcinoma. Inverse correlation was both observed in the expression of survivin and bcl-2 with survival rate. Thus a positive correlation between surviving, bcl-2 and HPV 16/18 was observed in cervical carcinoma.

CONCLUSION

Survivin, bcl-2 and HPV16/18 participate in the development of cervical carcinoma. It may be a useful guide in early diagnosis of cervical carcinoma, evaluation of surgery and chemotherapy and prediction of outcome.