Differential expression of ABCF2 protein among different histologic types of epithelial ovarian cancer and in clear cell adenocarcinomas of different organs

2007 ◽  
Vol 38 (1) ◽  
pp. 134-139 ◽  
Author(s):  
Sadako Nishimura ◽  
Hiroshi Tsuda ◽  
Kiyoshi Ito ◽  
Toshiko Jobo ◽  
Nobuo Yaegashi ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Epithelial Ovarian Cancer ◽  
Differential Expression ◽  
Clear Cell ◽  
Histologic Types

Paradigm Shift in the Management Strategy for Epithelial Ovarian Cancer

2016 ◽  
pp. e247-e257 ◽  
Author(s):  
Keiichi Fujiwara ◽  
Jessica N. McAlpine ◽  
Stephanie Lheureux ◽  
Noriomi Matsumura ◽  
Amit M. Oza
Keyword(s):  
Ovarian Cancer ◽  
Epithelial Ovarian Cancer ◽  
Paradigm Shift ◽  
Management Strategy ◽  
Clear Cell ◽  
Treatment Strategies ◽  
Low Grade ◽  
Ovarian Carcinomas ◽  
Coelomic Epithelium ◽  
Histologic Types

The hypothesis on the pathogenesis of epithelial ovarian cancer continues to evolve. Although epithelial ovarian cancer had been assumed to arise from the coelomic epithelium of the ovarian surface, it is now becoming clearer that the majority of serous carcinomas arise from epithelium of the distal fallopian tube, whereas clear cell and endometrioid cancers arise from endometriosis. Molecular and genomic characteristics of epithelial ovarian cancer have been extensively investigated. Our understanding of pathogenesis of the various histologic types of ovarian cancer have begun to inform changes to the strategies for management of epithelial ovarian cancer, which represent a paradigm shift not only for treatment but also for prevention, which previously had not been considered achievable. In this article, we will discuss novel attempts at the prevention of high-grade serous ovarian cancer and treatment strategies for two distinct entities in epithelial ovarian cancer: low-grade serous and clear cell ovarian carcinomas, which are relatively rare and resistant to conventional chemotherapy.

scholarly journals Upregulation of cyclase-associated actin cytoskeleton regulatory protein 2 in epithelial ovarian cancer correlates with aggressive histologic types and worse outcomes

2020 ◽  
Vol 50 (6) ◽  
pp. 643-652 ◽  
Author(s):  
Masataka Adachi ◽  
Yohei Masugi ◽  
Ken Yamazaki ◽  
Katsura Emoto ◽  
Yusuke Kobayashi ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Actin Cytoskeleton ◽  
Epithelial Ovarian Cancer ◽  
Cell Lines ◽  
Regulatory Protein ◽  
Control Cell ◽  
Type I ◽  
Type Ii ◽  
Expression Levels ◽  
Histologic Types

Abstract Objective Cyclase-associated actin cytoskeleton regulatory protein 2 (CAP2) regulates actin dynamics to control cell cycles and cell migration. CAP2 overexpression contributes to cancer progression in several tumor types; however, the role of CAP2 expression in ovarian cancer remains unclear. This study aimed to clarify the significance of CAP2 expression in epithelial ovarian tumor. Methods We evaluated CAP2 expression in ovarian cancer cell lines using quantitative real-time polymerase chain reaction, western blotting and immunocytochemistry and examined the effect of CAP2 silencing in migration and proliferation assays. CAP2 immunohistochemistry was conducted using tissue specimens from 432 ovarian carcinoma patients; a further 55 borderline and benign 65 lesions were analyzed. CAP2 expression levels were defined as low, intermediate or high, for correlation analysis with clinicopathological factors. Results CAP2 expression was significantly higher in cell lines from Type II ovarian cancer than in those in Type I, and knockdown of CAP2 showed decreased migration and proliferation. Higher levels of CAP2 expression in human tissues were associated with Type II histology, residual lesion, lymph node metastasis, ascites cytology and higher clinical stage. High CAP2 expression levels were observed in 26 (23.4%) of 111 Type II ovarian cancers and in 16 (5.0%) of 321 Type I cancers but not in any borderline or benign lesions. Multivariate analyses showed that CAP2 expression in ovarian cancer is an independent prognostic factor for recurrence-free survival (P = 0.019). Conclusion CAP2 expression is upregulated in aggressive histologic types of epithelial ovarian cancer and serves as a novel prognostic biomarker for patient survival.

An evaluation of survival of ovarian cancer patients with clear cell carcinoma versus serous carcinoma treated with platinum therapy: A Gynecologic Oncology Group experience.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 5534-5534 ◽  
Author(s):  
John H. Farley ◽  
William E. Brady ◽  
Michael J. Birrer ◽  
David Marc Gershenson ◽  
Gini F. Fleming ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Prognostic Factors ◽  
Epithelial Ovarian Cancer ◽  
Cell Carcinoma ◽  
Treatment Effect ◽  
Late Stage ◽  
Clear Cell ◽  
Clear Cell Carcinoma ◽  
Early Stage ◽  
Performance Status

5534 Background: We examined disparities in prognosis between patients with ovarian clear cell carcinoma (OCCC) and serous epithelial ovarian cancer (SOC). Methods: Data from stage I-IV epithelial ovarian cancer (EOC) patients who participated in 12 randomized GOG protocols using platinum-based chemotherapy were reviewed. Proportional hazards models adjusted for age and stratified by protocol, treatment arm, stage, performance status (PS), and race were used to compare progression-free survival (PFS) and overall survival (OS) by cell type (clear cell versus serous). Results: There were 10,803 patients enrolled, 1272 were not eligible: leaving 9,531, of whom 544 (6%) had OCCC, 7,054 (74%) had SOC, and 1,933 (20%) had other; only the OCCC and SOC are considered here. OCCC were significantly younger, more often of Asian race, stage I, good PS, and optimally surgically debulked than SOC patients. Prior to adjustment, OCCC had better PFS and OS due to better prognostic factors. There was no significant difference in PFS or OS for early stage OCCC patients compared to high-grade (HG) SOC patients. For late stage patients, OCCC had poorer PFS and OS compared to SOC, OS HR= 1.66 (1.43, 1.91; p < 0.001). For both optimal, HR = 1.34 (1.10, 1.63; p = 0.003) and suboptimal, HR = 3.18 (2.13, 4.75; p < 0.001) OCCC had a significantly poorer OS than SOC. After adjusting for age and stratified by protocol and treatment arm, stage, performance status, and race, OCCC had a significantly decreased OS, HR= 1.53 (1.33,1.76; p < 0.001). In early stage cases, there was a significantly decreased treatment effect on PFS for consolidative therapy with weekly taxol versus observation in SOC compared to OCCC (p = 0.048). Conclusions: This is one of the largest analyses to date of OCCC treated in a uniform manner . OCCC patients have better PFS and OS compared to SOC; this, is due to their better prognostic factors. There was no observed difference in PFS or OS for early stage OCCC versus HGSOC. In late-stage patients, OCCC was significantly associated with decreased OS which was true for both optimal and suboptimally debulked patients. Finally, treatment effect was influenced by histology.

scholarly journals Coumestrol suppresses proliferation of ES2 human epithelial ovarian cancer cells

2015 ◽  
Vol 228 (3) ◽  
pp. 149-160 ◽  
Author(s):  
Whasun Lim ◽  
Wooyoung Jeong ◽  
Gwonhwa Song
Keyword(s):  
Ovarian Cancer ◽  
Epithelial Ovarian Cancer ◽  
Clear Cell ◽  
Serous Carcinoma ◽  
Ovarian Cancer Cells ◽  
Dependent Manner ◽  
Pi3k Inhibitors ◽  
Novel Treatment ◽  
Induced Apoptosis ◽  
Preventive Effects

Coumestrol, which is predominantly found in soybean products as a phytoestrogen, has cancer preventive activities in estrogen-responsive carcinomas. However, effects and molecular targets of coumestrol have not been reported for epithelial ovarian cancer (EOC). In the present study, we demonstrated that coumestrol inhibited viability and invasion and induced apoptosis of ES2 (clear cell-/serous carcinoma origin) cells. In addition, immunoreactive PCNA and ERBB2, markers of proliferation of ovarian carcinoma, were attenuated in their expression in coumestrol-induced death of ES2 cells. Phosphorylation of AKT, p70S6K, ERK1/2, JNK1/2, and p90RSK was inactivated by coumestrol treatment in a dose- and time-dependent manner as determined in western blot analyses. Moreover, PI3K inhibitors enhanced effects of coumestrol to decrease phosphorylation of AKT, p70S6K, S6, and ERK1/2. Furthermore, coumestrol has strong cancer preventive effects as compared to other conventional chemotherapeutics on proliferation of ES2 cells. In conclusion, coumestrol exerts chemotherapeutic effects via PI3K and ERK1/2 MAPK pathways and is a potentially novel treatment regimen with enhanced chemoprevention activities against progression of EOC.

Outcomes of Fertility-Sparing Surgery for Stage I Epithelial Ovarian Cancer: A Proposal for Patient Selection

2010 ◽  
Vol 28 (10) ◽  
pp. 1727-1732 ◽  
Author(s):  
Toyomi Satoh ◽  
Masayuki Hatae ◽  
Yoh Watanabe ◽  
Nobuo Yaegashi ◽  
Osamu Ishiko ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Epithelial Ovarian Cancer ◽  
Clear Cell ◽  
Stage I ◽  
Healthy Children ◽  
Favorable Histology ◽  
Fertility Sparing Surgery ◽  
Fertility Sparing ◽  
Stage Ia ◽  
Grade 3

Purpose The objective of this study was to assess clinical outcomes and fertility in patients treated conservatively for unilateral stage I invasive epithelial ovarian cancer (EOC). Patients and Methods A multi-institutional retrospective investigation was undertaken to identify patients with unilateral stage I EOC treated with fertility-sparing surgery. Favorable histology was defined as grade 1 or grade 2 adenocarcinoma, excluding clear cell histology. Results A total of 211 patients (stage IA, n = 126; stage IC, n = 85) were identified from 30 institutions. Median duration of follow-up was 78 months. Five-year overall survival and recurrence-free survival were 100% and 97.8% for stage IA and favorable histology (n = 108), 100% and 100% for stage IA and clear cell histology (n = 15), 100% and 33.3% for stage IA and grade 3 (n = 3), 96.9% and 92.1% for stage IC and favorable histology (n = 67), 93.3% and 66.0% for stage IC and clear cell histology (n = 15), and 66.7% and 66.7% for stage IC and grade 3 (n = 3). Forty-five (53.6%) of 84 patients who were nulliparous at fertility-sparing surgery and married at the time of investigation gave birth to 56 healthy children. Conclusion Our data confirm that fertility-sparing surgery is a safe treatment for stage IA patients with favorable histology and suggest that stage IA patients with clear cell histology and stage IC patients with favorable histology can be candidates for fertility-sparing surgery followed by adjuvant chemotherapy.

scholarly journals Differential expression of RAS-like estrogen regulated growth inhibitor in human epithelial ovarian cancer.

2021 ◽  
Author(s):  
Shahan Mamoor
Keyword(s):  
Ovarian Cancer ◽  
Epithelial Ovarian Cancer ◽  
Differential Expression ◽  
Fallopian Tube ◽  
Expression Profiles ◽  
Growth Inhibitor ◽  
High Grade ◽  
Significant Differential Expression ◽  
Primary Tumors ◽  
Ovarian Cancers

Epithelial ovarian cancer (EOC) is the most lethal gynecologic cancer (1). We performed discovery of genes associated with epithelial ovarian cancer and of the high-grade serous ovarian cancer (HGSC) subtype, using published and public microarray data (2, 3) to compare global gene expression profiles of normal ovary or fallopian tube with that of primary tumors from women diagnosed with epithelial ovarian cancer or HGSC. We identified the gene encoding RAS-like estrogen regulated growth inhibitor, RERG, as among the genes whose expression was most different in epithelial ovarian cancer as compared to the normal fallopian tube. RERG expression was significantly lower in high-grade serous ovarian tumors relative to normal fallopian tube. In a separate dataset, we discovered significant differential expression of a non-coding RNA transcribed from the RERG locus, RERG-AS1, in the tumors of patients with epithelial ovarian cancer when comparing tumors based on disease progression. RERG expression correlated with progression-free survival in patients with ovarian cancer. These data indicate that expression of RERG is perturbed in epithelial ovarian cancers broadly and in ovarian cancers of the HGSC subtype. RERG may be relevant to pathways underlying ovarian cancer initiation (transformation) or progression.

Survival and prognostic factors in patients with epithelial ovarian cancer receiving paclitaxel and carboplatin as first-line chemotherapy in Japanese women: A multi-center retrospective study

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 15022-15022
Author(s):  
H. Kajiyama ◽  
F. Kikkawa ◽  
M. Kawai ◽  
K. Mizuno ◽  
I. Kobayashi ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Prognostic Factors ◽  
Retrospective Study ◽  
Epithelial Ovarian Cancer ◽  
Clear Cell ◽  
Histological Grade ◽  
Clinical Stage ◽  
Progression Free Survival ◽  
Figo Stage ◽  
Second Line

15022 Background: The aim of this retrospective study was to re-evaluate, multi-analytically, survival and prognostic factors of patients with epithelial ovarian cancer (EOC) receiving the combination of paclitaxel and carboplatin (PC). Methods: Between 1/00 and 12/04, a total of 335 cases with EOC of FIGO stage I-IV are registered in a multi-institutional series. All patients received cytoreductive surgery and combination chemotherapy of paclitaxel 180 mg/m2/3 hr and carboplatiion AUC = 5 for a total of 6 cycles. We retrospectively analyzed progression-free survival (PFS) and overall survival (OS) of these patients by stratification of assumable several prognostic factors and second-line regimen. Survival probabilities were estimated by Kaplan-Meier methods, and prognostic factors for survival were evaluated by a COX proportional hazard model. Results: Median age was 54 ± 11 years (range 9–81). The 3-, 4- and 5-year OS in patients was 67.0%, 53.9% and 50.6%, respectively. In a COX analysis, FIGO stage, histological type and residual tumor (2 cm < vs. 2 cm >; P = 0.0007, HR; 2.4, 95% CI = 1.4–4.0) were found to be independent significant factors for OS. The stratification analysis revealed that stage III-IV patients with clear cell and mucinous carcinoma have poorer prognosis than those with other histological types ( Table ). In contrast, no differences in histological grade (G1 vs. G2; P = 0.82, HR; 0.9, 95% CI = 0.5–1.6, G1 vs. G3; P = 0.65, HR; 0.9, 95% CI = 0.4–1.6) and kinds of second-line regimen were noticed for PFS and OS. Conclusions: Optimal surgical debulking, clinical stage, and histology appear to be important prognostic factors of survival in patients with EOC. This retrospective study suggests that PC may still have an impact on outcome. However, further strategy will be needed for improving survival of mucinous and clear-cell type EOC, especially with advanced stage. [Table: see text] No significant financial relationships to disclose.

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