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Clinical significance of microsatellite instability in sporadic epithelial ovarian tumors

 Bo-Sung Yoon  ;  Young-Tae Kim  ;  Jae-Hoon Kim  ;  Sang-Wun Kim  ;  Eun-Ji Nam  ;  Nam-Hoon Cho  ;  Jae-Wook Kim  ;  Sunghoon Kim 
 YONSEI MEDICAL JOURNAL, Vol.49(2) : 272-278, 2008 
Journal Title
Issue Date
DNA, Neoplasm/genetics ; Female ; Humans ; Microsatellite Instability* ; Ovarian Neoplasms/genetics* ; Ovarian Neoplasms/pathology* ; Polymerase Chain Reaction
Microsatellite instability ; polymerase chain reaction ; ovarian neoplasms
PURPOSE: We evaluated the expression of microsatellite instability (MSI) in sporadic ovarian tumors using 5 standard and 9 new MSI markers to determine the clinical significance of MSI in sporadic epithelial ovarian tumors.

MATERIALS AND METHODS: MSI was examined in 21 borderline and 25 malignant ovarian tumors. Polymerase chain reaction (PCR) was performed using the 5 markers recommended by the National Cancer Institute (NCI) for colon cancer and 9 additional markers. MSI was determined using fractional analysis by mixing the PCR products and size markers.

RESULTS: Using the 5 conventional MSI markers, MSI was found in 4 of 46 (8.6%) ovarian tumors, including 2 of 21 (9.5%) borderline ovarian tumors and 2 of 25 (8%) malignant ovarian tumors. Using the 9 additional MSI markers, MSI was observed in 7 of 46 (15.2%) ovarian tumors, including 3 of 21 (14.3%) borderline ovarian tumors and 4 of 25 (16%) malignant ovarian tumors. There was no statistically significant difference between MSI and clinicopathological factors, including histology and stage, although there was a trend toward an increased incidence of MSI in the serous type.

CONCLUSION: MSI was infrequent in ovarian tumors, including both borderline and malignant tumors. MSI was found to be uncommon in sporadic ovarian tumors, even by using additional MSI markers. The clinical significance of MSI is not strong in patients with sporadic ovarian tumors.
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1. College of Medicine (의과대학) > Dept. of Obstetrics and Gynecology (산부인과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Pathology (병리학교실) > 1. Journal Papers
Yonsei Authors
Kim, Sang Wun(김상운) ORCID logo https://orcid.org/0000-0002-8342-8701
Kim, Sung Hoon(김성훈) ORCID logo https://orcid.org/0000-0002-1645-7473
Kim, Young Tae(김영태) ORCID logo https://orcid.org/0000-0002-7347-1052
Kim, Jae Wook(김재욱)
Kim, Jae Hoon(김재훈) ORCID logo https://orcid.org/0000-0001-6599-7065
Nam, Eun Ji(남은지) ORCID logo https://orcid.org/0000-0003-0189-3560
Yoon, Bo Sung(윤보성)
Cho, Nam Hoon(조남훈) ORCID logo https://orcid.org/0000-0002-0045-6441
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