FXYD3 expression is upregulated in numerous cancer cell types. The present study compared the FXDY3 expression in normal endometrium, premalignant lesion and endometrial cancer tissue samples, and investigated the correlation between FXDY3 expression and clinicopathological features. FXYD3 expression was analyzed by streptavidin-peroxidase immunohistochemistry in 21 normal endometrial tissue samples, 18 atypical endometrial hyperplasia samples and 50 tissues obtained from patients diagnosed with endometrial cancer. The percentage of FXYD3-positive cell expression in the normal endometrium, atypical hyperplasia and endometrial cancer tissues samples was 0, 22, and 26%, respectively. The differences between the atypical hyperplasia and endometrial cancer groups were statistically significant when compared with the normal group (P=0.007 and P=0.037, respectively). There was no significant difference between the atypical hyperplasia and endometrial cancer groups. The percentage of FXYD3-positive cells correlated with the fertility frequency (P<0.05). In conclusion, FXYD3 is a potential biomarker for endometrial cancer, and its upregulation may be an early event in endometrial carcinoma progression. In addition, FXYD3 expression in endometrial carcinoma correlates with fertility frequency.
Background: This study aims to evaluate the short-term efficacy of concurrent chemoradiotherapy (CCRT) in primary fallopian tube carcinoma (PFTC) using magnetic resonance diffusion-weighted imaging (MR-DWI). Patients and Methods: Total abdominal irradiation was performed for 61 PFTC patients after surgery, and paclitaxel and carboplatin were used for CCRT. According to the response evaluation criteria in solid tumors (RECIST1.1), patients were divided into a sensitive (n = 36) and a resistant group (n = 25). Pearson correlation analysis was conducted to assess the correlations of tumor regression rate with apparent diffusion coefficient (ADC)pre, ADCpost, and ∆ADCpost. The efficacy of CCRT in PFTC using MR-DWI was evaluated by ROC curve, logistic regression analysis, Kaplan-Meier survival curve, and Cox regression model. Results: The ADCpre in both the sensitive and the resistant group was negatively associated with the tumor regression rate (r = -0.508), while the ADCpost (r = 0.454) and ∆ADCpost (r = 0.769) were positively associated with the tumor regression rate (all p < 0.05). Histopathological type, FIGO stage, lymphatic metastasis, tumor regression rate, ADCpre, ADCpost, and ∆ADCpost were confirmed as key factors for CCRT in PFTC (all p < 0.05). Conclusion: Our retrospective study demonstrates the predictive value of MR-DWI in CCRT for PFTC patients.
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