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논문 기본 정보

자료유형
학술저널
저자정보
Joseph J. Noh (성균관대학교) 김민규 (성균관대학교) 최민철 (차의과학대학교) 이정원 (삼성서울병원) 박현 (차의과학대학교) 정상근 (차의과학대학교) 주원덕 (차의과학대학교 분당차병원) 송승훈 (차의과학대학교) 이찬 (차의과학대학교)
저널정보
대한암학회 Cancer Research and Treatment Cancer Research and Treatment 제54권 제4호
발행연도
2022.10
수록면
1,200 - 1,208 (9page)
DOI
10.4143/crt.2021.828

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PurposeThis study was to investigate the frequency of mismatch repair deficiency/high microsatellite instability (MMRd/MSI-H) in gynecologic malignancies and the efficacy of immune checkpoint inhibitors (ICIs) in patients with recurrent gynecologic cancers according to MMR/MSI status.Materials and MethodsWe conducted a multi-center retrospective review on the patients who were diagnosed with gynecologic cancers between 2015 and 2020. Their clinicopathologic information, results of immunohistochemistry staining for MLH1/MSH2/MSH6/PMS2 and MSI analysis, tumor response to treatment with ICIs were investigated.ResultsAmong 1,093 patients included in the analysis, MMRd/MSI-H was most frequent in endometrial/uterine cancers (34.8%, 164/471), followed by ovarian, tubal, and peritoneal cancers (12.8%, 54/422) and cervical cancer (11.3%, 21/186). When assessed by histology without regard for cancer types, the frequency of MMRd/MSI-H was 11.0% (38/345) in high-grade serous adenocarcinoma, 38.6% (117/303) in endometrioid adenocarcinoma, and 30.2% (16/53) in carcinosarcoma. A total of 114 patients were treated with ICIs at least once. The objective response rate (ORR) was 21.6% (8/37) in cervical cancer, 4.7% (2/43) in ovarian cancer, and 25.8% (8/31) in endometrial/uterine cancers. Univariate regression analysis identified MMRd/MSI-H as the only significant factor associated with the ORR (28.9% [11/38] vs. 11.8% [9/76]; odds ratio, 3.033; 95% confidence interval, 1.129–8.144; p=0.028).ConclusionThe frequency of MMRd/MSI-H is moderate to high in gynecologic cancers in the Korean population. MMRd/MSI-H could be effective predictive biomarkers in gynecologic cancers of any type.

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