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Korean Journal of Obstetrics & Gynecology 2005;48(11):2670-2681.
Published online November 1, 2005.
Relationship between the expression of cyclin B1, D1 and the various prognostic factors in ovarian carcinoma.
Hee Yeon Kim, Jae Wook Kim, Young Tae Kim, Moung Hwa Kang, Jae Hoon Kim, Sung Hoon Kim, Sang Wun Kim, Bo Sung Yoon
Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Women's Cancer Clinic, Seoul, Korea. jaewookkim@yumc.yonsei.ac.kr
Abstract
OBJECTIVE
The objective of this study was to evaluate the relationship between the expression of cyclin B1, D1 and the various prognostic factors in ovarian carcinoma. METHODS: In this study, fresh ovarian tissue samples were obtained from 41 patients treated surgically at our institute from March of 2002 to February of 2005. These included 36 ovarian carcinomas and 5 normal ovarian tissues that were served as the control. Quantitative real-time RT-PCR and Western blot analysis were used in detecting the expression of mRNA and protein of cyclin B1, D1, respectively. RESULTS: The mean 2(-delta delta CT) values of cyclin B1 and D1 mRNA in ovarian carcinoma tissues obtained through quantitative real-time RT-PCR were 5.83+/-12.03, 17.60+/-22.20, respectively, and the mean values in the control were 0.55+/-0.35, 0.50+/-0.26, respectively. The results showed difference in the expression, but were not statistically significant (p=0.67, 0.07, respectively). If the mean densitometer value of cyclin B1 and D1 protein in the control obtained by Western blot analysis was 1, the mean values in ovarian carcinoma tissues were higher, but were not statistically significant (1.30+/-0.73, 1.81+/-1.28, respectively) (p=0.76, 0.06, respectively). The expression of cyclin B1, D1 and various prognostic factors was not statistically related. CONCLUSION: Our results showed that the expression of cyclin B1 and D1 in ovarian carcinoma tissues was higher than in the normal control. This suggested that cyclin B1, D1 and the tumorigenesis and the degree of malignancy was closely related. But the expression of cyclin B1, D1 and various prognostic factors was not statistically related. Further studies based on the correlation between cyclin and response to treatment or survival rate are needed to support cyclin as a prognostic factor of ovarian carcinoma.
Key Words: Ovarian carcinoma, Cyclin B1, Cyclin D1, Prognostic factors


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