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논문 기본 정보

자료유형
학술저널
저자정보
Jin Hwa Hong (Department of Preventive Medicine Korea University College of Medicine Seoul Korea) Hyun Woong Cho (Guro Hospital Korea University College of Medicine Seoul Korea) Yung-Taek Ouh (Kangwon National University) Jae Kwan Lee (Department of Obstetrics and Gynecology Guro Hospital Korea University College of Medicine Seoul Korea) Yikyeong Chun (Guro Hospital Korea University College of Medicine Seoul Korea)
저널정보
대한부인종양학회 Journal of Gynecologic Oncology Journal of Gynecologic Oncology Vol.34 No.2
발행연도
2023.3
수록면
1 - 13 (13page)
DOI
https://doi.org/10.3802/jgo.2023.34.e18

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Objective: Immune checkpoint inhibitors have been widely used in the treatment ofendometrial cancer (EC) with microsatellite instability-hypermutated (MSI-H). However,there is an unmet need for microsatellite stable (MSS) EC because of their modest activity. This study aimed to identif y potential immune-related biomarkers in MSS EC. Methods: One hundred and twenty-three patients with EC who under went hysterectomywere enrolled. MSI status was determined using MSI analysis and/or immunohistochemicalstaining for mismatch repair proteins. Immunohistochemical analysis of programmed celldeath protein 1 (PD-1), programmed death-ligand 1 (PD-L1), PD-L2, cytotoxic T-lymphocyte-associated protein 4 (CTLA-4), cluster of differentiation 3 (CD3), CD8, lymphocyte activationgene-3 (LAG-3), indoleamine 2,3-dioxygenase 1 (IDO1), phosphatase and tensin homolog(PTEN), p53, AT-rich interactive domain-containing protein 1A (ARID1A), and β-catenin wasperformed using tissue microarray blocks. Results: Among 123 patients, 95 (77.2%) were classified as having MSS. Within EC withMSS, PD-L1 positivity was significantly associated with positive PD-1 (p<0.001), CTLA-4(p<0.001), CD3 (p=0.002), CD8 (p<0.001), and LAG-3 (p<0.001). In the univariate analysis,positive PD-1 (odds ratio [OR]=9.281; 95% confidence inter val [CI]=2.560–33.653; p<0.001),CTLA-4 (OR=5.33; 95% CI=1.418–19.307; p=0.005), CD3 (OR=5.571; 95% CI=1.746–17.775;p=0.004), CD8 (OR=6.909; 95% CI=2.647–18.037; p<0.001), and LAG-3 (OR=9.75; 95%CI=1.947–48.828; p=0.005) were significantly associated with PD-L1 positivity in MSS EC. Inthe multivariate analysis, LAG-3 demonstrated a significant association with positive PD-L1expression in MSS EC (OR=5.061; 95% CI=1.534–16.693; p=0.023). Conclusion: In patients with MSS EC harboring PD-L1, LAG-3 may be a potentialimmunotherapeutic target. Clinical trials investigating the role of anti-LAG-3 antibodies,alone or in combination with other immunotherapies, are warranted.

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