Oncology and reproductive outcomes over 16 years of malignant ovarian germ cell tumors treated by fertility sparing surgery

BACKGROUND Malignant ovarian germ cell tumors(MOGCT)are rare and frequently occur in women of young and reproductive age and the oncologic and reproductive outcomes after fertility-sparing surgery(FSS)for this disease are still limited.AIM To evaluate the oncology and reproductive outcomes of MOGCT patients who underwent FSS.METHODS All MOGCT patients who underwent FSS defined as the operation with a preserved uterus and at least one side of the ovary at our institute between January 2005 and December 2020 were retrospectively reviewed.RESULTS Sixty-two patients were recruited for this study.The median age was 22 years old and over 77%were nulliparous.The three most common histology findings were immature teratoma(32.2%),dysgerminoma(24.2%),and yolk sac tumor(24.2%).The distribution of stage was as follows;Stage I,74.8%;stage II,9.7%;stage III,11.3%;and stage IV,4.8%.Forty-three(67.7%)patients received adjuvant chemotherapy.With a median follow-up time of 96.3 mo,the 10-year progressionfree survival and overall survival were 82.4%and 91%,respectively.For reproductive outcomes,of 43 patients who received adjuvant chemotherapy,18(41.9%)had normal menstruation,and 17(39.5%)resumed menstruation with a median time of 4 mo.Of about 14 patients who desired to conceive,four were pregnant and delivered good outcomes.Only one case was aborted.Therefore,the successful pregnancy rate was 28.6%CONCLUSION The oncology and reproductive outcomes of MOGCT treated by FSS are excellent.Many patients show a long survival time with normal menstruation.However,the obstetric outcome is not quite satisfactory.

Expression of Wnt-1,beta-catenin and c-myc in Ovarian Epithelial Tumor and Its Implication

Objective： To investigate the expression of Wnt-1, beta-catenin and c-myc in normal ovarian epithelial cell and malignant ovarian epithelial tumor. Methods： Immunohistochemical staining with SP method was conducted to identify the expression of Wnt-1, beta-catenin and c-myc in 18 samples of normal epithelial tissue and 34 cases of malignant epithelial tumor of ovary. Results： The expression rate of Wnt-1 and c-myc in malignant epithelial tumors was higher than those in normal epithelial cell （P〈0.05）. The abnormal expression rate of beta-catenin in malignant ovarian epithelial tumors was higher than that in normal epithelial cell （P〈0.05）. A significant positive correlation was found between Wnt-1, beta-catenin and c-myc in malignant ovarian epithelial tumor （P〈0.05）. A significant difference of expressions of Beta-catenin and C-myc was found between serous and mucinous tumors （P〈0.05）. Conclusion： The abnormal expression of Wnt-1, beta-catenin and c-myc might indicate the malignant transformation in ovarian epithelial tumors.

Expression levels of matrix metalloproteinases in ascites of patients with ovarian cancer and the relationship with pathological characteristics of ovarian cancer

Objective:To explore the expression levels of matrix metalloproteinase-2(MMP-2)and matrix metalloproteinase-9(MMP-9)in ascites in ovarian tumor and provide a theoretical basis for the diagnosis and prognosis evaluation of ovarian cancer ascites.Methods:ELISA was used to detect the levels of MMP-2 and MMP-9 in ascites samples from 73 cases of patients with malignant ovarian tumor,and RIA was used to detect the expression level of CA125 in the serum in these patients.Results:The expression levels of MMP-2 and MMP-9 in ascites in malignant ovarian tumor were higher than those in ascites in benign ovarian tumor(t=8.08,10.39,p<.01),and the difference was of statistical significance.The expression levels of MMP-2 and MMP-9 in patients with stage III and IV malignant ovarian tumors were higher than those in patients with stage I and II malignant ovarian tumors,and the difference was statistically significant(t=2.75,2.75,p<.05).There was no statistically significant difference in the expression levels of MMP-2 and MMP-9 among the patients with different pathological types,different histological grades,lymph node metastasis or not,different ascites volumes and different residual lesions(p>.05).The sensitivities of detecting MMP-2 and MMP-9 in ascites were 76.0%and 88.0%,respectively,which were significantly higher than those of ascites cytological examinations(χ^(2)=4.61,12.74,p<.05),but in comparison with serum CA125,there was no statistically significant difference(p>.05).The specificities of detecting MMP-2 and MMP-9 in ascites were 78.3%and 82.6%,respectively,which were significantly lower than those of ascites cytological examinations(χ^(2)=5.61,4.38,p<.05),but in comparison with serum CA125,there was no statistically significant difference(χ^(2)=1.64,2.68,p<.05).Conclusions:The levels of MMP-2 and MMP-9 in ascites may be markers for the differential diagnosis of benign and malignant ovarian lesions,and they are related to the prognosis in patients with malignant ovarian tumors.