Expression and clinical significance of GINS2 in endometrial cancer tissues
10.13200/j.cnki.cjb.004544
- VernacularTitle:GINS2在子宫内膜癌组织中的表达及其临床意义
- Author:
LUO Jianbo
- Publication Type:Journal Article
- From:
Chinese Journal of Biologicals
2025;38(08):932-938
- CountryChina
- Language:Chinese
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Abstract:
Objective To investigate the expression of GINS2 in endometrial cancer(EC) tissues and its correlation with prognosis.Methods The differential expression of GINS2 gene in EC and normal control tissues was analyzed using GEPIA,TIMER, and UALCAN databases. The endometrial tissues of 115 patients with EC(EC group), 30 patients with uterine fibroid(uterine fibroid group) and 26 patients with normal endometrium(normal control group) treated and followed up from May 2017 to December 2022 at the Department of Gynecology, Yunnan Cancer Hospital were collected. The transcription and translation levels of GINS2 gene in the samples were detected by qPCR and Western blot, respectively. Additionally, the expression levels and localization of GINS2 in different samples were analyzed using immunohistochemistry. Furthermore,the correlation between GINS2 expression levels and the clinicopathological features of EC was analyzed, and potential independent prognostic factors for EC were evaluated using Kaplan-Meier survival analysis and Cox proportional hazards regression model.Results The mRNA expression level of GINS2 gene was significantly higher in EC tissues than in normal control tissues according to all three databases(P < 0. 05). In the clinical validation cohort, both the transcriptional and protein expression levels of GINS2 gene were significantly higher in the EC group than in the uterine fibroid group and normal control group(t = 7. 707 and 8. 330, respectively, each P < 0. 01). GINS2 protein was mainly located in the cell nucleus and partially in the cytoplasm of EC tissues, with positive expression rates of 81. 74%, 46. 67% and 38. 46% in EC tissues,uterine fibroids, and normal endometrial tissues, respectively. GINS2 levels in EC tissues were associated with differentiation degree and lymph node metastasis(t = 4. 125 and 3. 589, respectively, each P < 0. 05), but not with age, tissue type, International Federation of Gynecology and Obstetrics(FIGO) stage, depth of invasion, estrogen receptor(ER) expression, or progesterone receptor(PR) expression(t = 0. 214, 0. 247, 0. 125, 0. 211, 0. 238, and 0. 314, respectively, each P > 0. 05). Multivariate Cox regression analysis showed that elevated GINS2 expression [hazard ratio(HR) = 2. 091, 95% confidence interval(CI): 1. 048-3. 135, P = 0. 019] and lymph node metastasis(HR = 1. 106, 95% CI: 1. 064-1. 149, P = 0. 027) were independent prognostic factors for EC patients.Conclusion The high expression of GINS2 in tissues is associated with poor prognosis of EC patients, and it is speculated that it may be related to the occurrence and development of EC.
