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Overexpression of Lysine-Specific Demethylase 1 Is Associated With Tumor Progression and Unfavorable Prognosis in Chinese Patients With Endometrioid Endometrial Adenocarcinoma



Overexpression of Lysine-Specific Demethylase 1 Is Associated With Tumor Progression and Unfavorable Prognosis in Chinese Patients With Endometrioid Endometrial Adenocarcinoma



International Journal of Gynecological Cancer 25(8): 1453-1460



Lysine-specific demethylase 1 (LSD1) is a kind of flavin adenine dinucleotide-dependent amine oxidase that regulates normal cellular differentiation, gene activation, tumorigenesis, and progression. This study aims to detect the expression level of LSD1 in endometrial cancer and to explore its role in the progression and prognosis of endometrioid endometrial adenocarcinoma (EEA). Immunohistochemistry was used to examine the expression of LSD1 in 206 EEA specimens, 50 benign endometrial lesion specimens, and 45 normal endometrium specimens. χ Analysis, Kaplan-Meier method, and multivariate Cox proportional hazard analysis were applied for the statistical analysis. Compared with normal endometrium and benign endometrial lesion (both P < 0.001), LSD1 was overexpressed in EEA. LSD1 expression was correlated with histological grade, International Federation of Gynecology and Obstetrics (FIGO) stage, vascular/lymphatic invasion, depth of myometrial invasion, and lymph node metastasis. Results of the Kaplan-Meier analysis indicated that LSD1 expression was associated with overall survival (OS) and disease-free survival (DFS) of EEA. The negative expression LSD1 group had longer OS and DFS than did the positive expression group. The difference was significant (both P < 0.001, log-rank test). Multivariate Cox regression analysis revealed that the LSD1 expression status was an independent prognostic factor for both OS (P = 0.027) and DFS (P = 0.016) of patients with EEA. Overexpression of LSD1 may contribute to the progression of EEA and may thus serve as a new biomarker to predict the prognosis of EEA.

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Accession: 058485881

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PMID: 26166558

DOI: 10.1097/IGC.0000000000000500


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