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Korean Journal of Obstetrics & Gynecology 1998;41(6):1704-1708.
Published online January 1, 2001.
Telomerase Activity in Gestational Trophoblastic Disease.
Seog Nyeon Bae, Jae Keun Jung, Eun Ah Choi, Jae Sun Kim, Dong Joo Kim, Hyun Young Ahn, Seung Jo Kim
Abstract
The purpose of this study was to evaluate the significance of telomerase activity in gestational trophoblastic disease and the association of telomerase activity in complete hydatidiform mole and subsequent development of persistent gestational trophoblastic tumor. By using the standard telomerase repeat assay, we examined telomerase activity in 2 normal placentas, 31 complete hydatidiform moles, 7 invasive moles, 5 choriocarcinoma tissues and choriocarcinoma cell line (JEG-3). Telomerase activity was detected in 13 of 15 (86.7%) complete hydatidiform mole patients who eventually had chemotherapy for the treatment of persistent gestational trophoblastic tumor. All of the 9 patients with metastatic disease (FIGO Stage III) had telomerase activity in their initial molar tissue. In contrast, telomerase activity was evident in only two of 16 (12.5%) complete hydatidiform mole patients with spontaneous remission. While telomerase activity was not detected in normal placentas, high level of telomerase activity was detected in all of 7 invasive moles, 5 choriocarcinoma tissues and choriocarcinoma cell line (JEG-3). The presence of telomerase activity in a complete hydatidiform mole is associated with the development of persistent gestational trophoblastic tumor, such as invasive mole and choriocarcinoma.
Key Words: Telomere, Telomerase, Complete hydatidiform mole, Gestational trophoblastic tumor


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