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Ovarian clear cell carcinoma

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https://www.readbyqxmd.com/read/28238418/foxa1-is-expressed-in-ovarian-mucinous-neoplasms
#1
Georgia Karpathiou, Melany Venet, Mousa Mobarki, Fabien Forest, Celine Chauleur, Michel Peoc'h
FOXA1 is a transcription factor essential for the binding and action of other transcription factors on the chromatin. It is the major regulator of endoderm differentiation. It has important roles in breast, prostate and endometrial cancer. It has never been studied in ovarian tumours. The aim of this study was to investigate its expression in ovarian epithelial neoplasms. A total of 195 primary ovarian epithelial borderline or malignant tumours were immunohistochemically studied for the expression of FOXA1...
February 23, 2017: Pathology
https://www.readbyqxmd.com/read/28237436/cationic-dendritic-starch-as-a-vehicle-for-photodynamic-therapy-and-sirna-co-delivery
#2
Sarah A Engelberth, Nadine Hempel, Magnus Bergkvist
Cationic enzymatically synthesized glycogen (cESG) is a naturally-derived, nano-scale carbohydrate dendrite that has shown promise as a cellular delivery vehicle owing to its flexibility in chemical modifications, biocompatibility and relative low cost. In the present work, cESG was modified and evaluated as a vehicle for tetraphenylporphinesulfonate (TPPS) in order to improve cellular delivery of this photosensitizer and investigate the feasibility of co-delivery with short interfering ribonucleic acid (siRNA)...
February 20, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28217682/syndrome-of-inappropriate-antidiuretic-hormone-secretion-following-irinotecan-cisplatin-administration-as-a-treatment-for-recurrent-ovarian-clear-cell-carcinoma
#3
Do Youn Kwon, Gwan Hee Han, Roshani Ulak, Kyung Do Ki, Jong Min Lee, Seon Kyung Lee
Syndrome of inappropriate antidiuretic hormone secretion (SIADH) has various causes including central nervous system disorders, pulmonary and endocrine diseases, paraneoplastic syndromes, and use of certain drugs. SIADH induced by chemotherapy with irinotecan-cisplatin is not a common complication. Here, we review a case of SIADH after treatment with irinotecan-cisplatin. A 45-year-old woman received adjuvant chemotherapy (paclitaxel-carboplatin) for ovarian clear cell carcinoma, but the cancer recurred within 9 months of chemotherapy...
January 2017: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/28199067/human-epididymis-protein-4-immunostaining-of-malignant-ascites-differentiates-cancer-of-m%C3%A3-llerian-origin-from-gastrointestinal-cancer
#4
Anna Stiekema, Koen K Van de Vijver, Henk Boot, Annegien Broeks, Catharina M Korse, Willemien J van Driel, Gemma G Kenter, Christianne A R Lok
BACKGROUND: An accurate diagnosis of cancer of Müllerian origin is required before the initiation of treatment. An overlap in clinical presentation and cytological, histological, or imaging studies with other nongynecological tumors does occur. Therefore, immunocytochemistry markers are used to determine tumor origin. Human epididymis protein 4 (HE4) is overexpressed in tissue of epithelial ovarian cancer (EOC). It has shown to be a sensitive and specific serum marker for EOC and to be of value for the differentiation between EOC and ovarian metastases of gastrointestinal origin...
February 15, 2017: Cancer
https://www.readbyqxmd.com/read/28194593/synchronous-endometrial-and-ovarian-carcinomas-predictors-of-risk-and-associations-with-survival-and-tumor-expression-profiles
#5
Linda E Kelemen, Peter F Rambau, Jennifer M Koziak, Helen Steed, Martin Köbel
PURPOSE: Synchronous endometrial and ovarian tumors (SEOs) are diagnosed in 10% of ovarian cancer patients. We examined predictors of SEOs, evaluated associations of SEOs with survival and characterized ovarian tumor profiles using immunohistochemistry. METHODS: We included patients with endometrioid (n = 180) and clear cell (n = 165) ovarian carcinoma identified from the Alberta Cancer Registry between 1979 and 2010 for whom we abstracted medical records and constructed tumor tissue microarrays (TMAs)...
February 13, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28187748/characterization-of-ovarian-clear-cell-carcinoma-using-target-drug-based-molecular-biomarkers-implications-for-personalized-cancer-therapy
#6
Mengjiao Li, Haoran Li, Fei Liu, Rui Bi, Xiaoyu Tu, Lihua Chen, Shuang Ye, Xi Cheng
BACKGROUND: It has long been appreciated that different subtypes (serous, clear cell, endometrioid and mucinous) of epithelial ovarian carcinoma (EOC) have distinct pathogenetic pathways. However, clinical management, especially chemotherapeutic regimens, for EOC patients is not subtype specific. Ovarian clear cell carcinoma (CCC) is a rare histological subtype of EOC, which exhibits high rates of recurrence and low chemosensitivity. We assessed potential therapeutic targets for ovarian CCC patients through analyzing the variation of drug-based molecular biomarkers expression between ovarian CCC and high-grade serous carcinoma (HGSC)...
February 10, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28184014/autophagy-inhibition-enhances-sunitinib-efficacy-in-clear-cell-ovarian-carcinoma
#7
Lindsay DeVorkin, Matthew Hattersley, Paul Kim, Jenna Ries, Jaeline Spowart, Michael S Anglesio, Samuel M Levi, David G Huntsman, Ravi K Amaravadi, Jeffrey D Winkler, Anna V Tinker, Julian J Lum
Clear cell ovarian carcinoma (CCOC) is an aggressive form of epithelial ovarian cancer that exhibits low response rates to systemic therapy and poor patient outcomes. Multiple studies in CCOC have revealed expression profiles consistent with increased hypoxia, and our previous data suggest that hypoxia is correlated with increased autophagy in CCOC. Hypoxia-induced autophagy is a key factor promoting tumor cell survival and resistance to therapy. Recent clinical trials with the molecular-targeted receptor tyrosine kinase (RTK) inhibitor sunitinib have demonstrated limited activity...
February 9, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28179304/imp3-expression-in-borderline-tumors-of-the-ovary
#8
Ahmed El-Balat, Nicole Sänger, Thomas Karn, Sven Becker, Uwe Holtrich, Zelal Muallem, Ruza Arsenic
BACKGROUND/AIM: Borderline ovarian tumors (BOTs) have a less aggressive behavior than invasive epithelial ovarian tumors. Still some patients relapse or succumb to disease. Molecular markers that reliably predict prognosis are lacking. Insulin-like growth factor II mRNA-binding protein (IMP3) has been suggested as a prognostic marker in colorectal, hepatocellular, and ovarian clear-cell carcinomas. MATERIALS AND METHODS: We analyzed the expression of IMP3 by immunohistochemistry in a cohort of 140 BOT and its association with histopathological features...
2017: Anticancer Research
https://www.readbyqxmd.com/read/28173214/ugt1a1-polymorphism-as-a-prognostic-indicator-of-stage-i-ovarian-clear-cell-carcinoma-patients-treated-with-irinotecan
#9
Tomoko Yoshihama, Akira Hirasawa, Hiroyuki Nomura, Tomoko Akahane, Yoshiko Nanki, Wataru Yamagami, Fumio Kataoka, Eiichiro Tominaga, Nobuyuki Susumu, Taisei Mushiroda, Daisuke Aoki
No abstract text is available yet for this article.
February 4, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28161486/microrna-424-inhibits-cell-migration-invasion-and-epithelial-mesenchymal-transition-by-downregulating-doublecortin-like-kinase-1-in-ovarian-clear-cell-carcinoma
#10
Xin Wu, Yuanyuan Ruan, Hua Jiang, Congjian Xu
Doublecortin-like kinase 1 (DCLK1) is overexpressed in many cancers and acts as a tumor stem cell marker. Here, we investigated the role of DCLK1 and microRNA-424 (miR-424) in ovarian clear cell carcinoma (OCCC), a histopathologically distinct subtype of epithelial ovarian cancer associated with poor prognosis and chemotherapy resistance. Analysis of samples from 30 OCCC patients showed that DCLK1 was upregulated and miR-424 was downregulated in tumors compared with adjacent non-tumor tissues. DCLK1 overexpression promoted OCCC cell proliferation, migration, and invasion, whereas DCLK1 knockdown reduced cell viability and invasion and induced growth arrest in vitro and in vivo...
February 2, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28133240/-a-case-of-primary-peritoneal-cancer-successfully-treated-with-debulking-surgery-and-postoperative-chemotherapy
#11
Koki Maeda, Masami Tabata, Taiki Moriyama, Tatsuya Sakamoto, Yu Fujimura, Ichiro Ohsawa, Kenji Kato, Makoto Iwata, Takayuki Sanda
A 52-year-old woman with abdominal pain and a feeling of incomplete evacuation visited a local clinic. Enlargement of the right ovary was detected, and the patient was referred to the gynecological department of our hospital. CT and MRI revealed a round-shaped mass, 8 cm in diameter, with cystic and solid components in the Douglas pouch. The patient underwent a laparotomy under the diagnosis of ovarian cancer. Intraoperatively, both the ovaries appeared normal and the tumor strongly adhered to the rectum and uterus...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28123539/bilateral-ovarian-carcinomas-differ-in-the-expression-of-metastasis-related-genes
#12
Marianne Lislerud Smebye, Lisbeth Haugom, Ben Davidson, Claes Göran Trope, Sverre Heim, Rolf Inge Skotheim, Francesca Micci
The mechanisms behind bilaterality of ovarian carcinomas are not fully understood, as the two tumors could possibly represent two primary tumors, a primary tumor and a metastasis, or two metastases. The gene expression profiles from bilateral high-grade serous carcinomas (HGSCs) and clear cell carcinomas (CCCs) of the ovary were compared to study the association between the tumors of the two sides. A separate analysis of genes from chromosome 19 was also performed, since this chromosome is frequently rearranged in ovarian carcinomas...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28115406/genetic-variants-in-epigenetic-pathways-and-risks-of-multiple-cancers-in-the-game-on-consortium
#13
Reka Toth, Dominique Scherer, Linda E Kelemen, Angela Risch, Aditi Hazra, Yesilda Balavarca, Jean-Pierre J Issa, Victor Moreno, Rosalind A Eeles, Shuji Ogino, Xifeng Wu, Yuanqing Ye, Rayjean J Hung, Ellen L Goode, Cornelia M Ulrich
BACKGROUND: Epigenetic disturbances are crucial in cancer initiation, potentially with pleiotropic effects, and may be influenced by the genetic background. METHODS: In a subsets (ASSET) meta-analytic approach, we investigated associations of genetic variants related to epigenetic mechanisms with risks of breast, lung, colorectal, ovarian and prostate carcinomas using 51,724 cases and 52,001 controls. False-discovery-rate corrected p-values (q-values < 0.05) were considered statistically significant...
January 23, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28112360/low-uptake-of-fluorodeoxyglucose-in-positron-emission-tomography-computed-tomography-in-ovarian-clear-cell-carcinoma-may-reflect-glutaminolysis-of-its-cancer-stem-cell-like-properties
#14
Masakazu Sato, Kei Kawana, Katsuyuki Adachi, Asaha Fujimoto, Ayumi Taguchi, Tomona Fujikawa, Mitsuyo Yoshida, Hiroe Nakamura, Haruka Nishida, Tomoko Inoue, Juri Ogishima, Satoko Eguchi, Aki Yamashita, Kensuke Tomio, Takahide Arimoto, Osamu Wada-Hiraike, Katsutoshi Oda, Takeshi Nagamatsu, Yutaka Osuga, Tomoyuki Fujii
The characteristics of ovarian cancers that showed low activation of glycolysis were investigated. Using medical records of patients with ovarian cancers who had undergone fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) prior to their primary surgery at the University of Tokyo Hospital between 2010 and 2015, we identified cases with a low uptake of FDG in PET/CT. We considered the maximum standardized uptake value (SUVmax) as the degree of glucose uptake. We investigated the properties which may account for the low activation of glycolysis in vitro...
January 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28105136/arid1a-gene-silencing-reduces-the-sensitivity-of-ovarian-clear-cell-carcinoma-to-cisplatin
#15
Changshuai Lyu, Yinglan Zhang, Xingnan Zhou, Jinghe Lang
In ovarian clear cell carcinoma (OCCC), the mutation rate of the AT-rich interaction domain 1A (ARID1A) gene is 46-57%. However, the effects of ARID1A gene silencing by small interfering RNA (siRNA) on the sensitivity of OCCC to cisplatin have not been investigated. Thus, this study aimed to elucidate the association between ARID1A gene silencing and drug resistance in OCCC. Three pairs of ARID1A gene siRNA fragments (siRNA-1, siRNA-2 and siRNA-3) were designed and transiently transfected into ES2 OCCC cells using RNAi Max reagent...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28071629/clinical-characteristics-with-patterns-of-relapse-and-survival-analysis-of-ovarian-clear-cell-carcinoma
#16
S Kaur, R A Kerkar, A Maheshwari, T S Shylasree, S Gupta, K Deodhar
AIMS: To analyze clinical characteristics, patterns of relapse, and treatment outcomes of clearcell carcinoma of the ovary (CCO). MATERIALS AND METHODS: Case files of 51 patients diagnosed with CCO between 2003 and 2010 were reviewed. RESULTS: The median age at diagnosis was 48 years (27-64 years). Fifty percent presented with nonspecific gastrointestinal symptoms. The median serum Ca125 was 74 IU/ml (6-1567 U/ml). Optimal cytoreduction was achieved in 32 (62...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28065241/expressions-of-cd44-cd47-and-c-met-in-ovarian-clear-cell-carcinoma-and-their-clinical-significance
#17
Hui-Min Wang, Ming-Zi Tan, Song Zhang, Xiao Li, Jian Gao, Dan-Ye Zhang, Ying-Ying Hao, Song Gao, Juan-Juan Liu, Bei Lin
Objective To investigate the expressions of CD44,CD47,and c-met in ovarian clear cell carcinoma (OCCC) tissue and their correlations with clinical variables and prognosis. Methods Immunohistochemical method was used to investigate the expressions of CD44,CD47,and c-met in tissues from 86 OCCC patients and the relationships of their expressions with the clinicopathological factors of OCCC were analyzed. Results The expressions of CD44,CD47,and c-met were significantly high in OCCC tissues (90.7%,91.9%,and 94...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28059101/steroid-hormone-synthesis-by-the-ovarian-stroma-surrounding-epithelial-ovarian-tumors-a-potential-mechanism-in-ovarian-tumorigenesis
#18
Luis Z Blanco, Elisabetta Kuhn, Jane C Morrison, Asli Bahadirli-Talbott, Anne Smith-Sehdev, Robert J Kurman
Epithelial ovarian tumors are responsive to steroid hormone stimulation and the ovarian stroma may have a direct role in this process. We evaluated immunohistochemical markers of sex-steroid differentiation and steroidogenesis (calretinin, inhibin, steroidogenic factor 1), steroid enzymes involved in hormone biosynthesis (CYP17, CYP19, HSD17β1, AKR1C3), and hormone receptors (estrogen receptor, progesterone receptor, and androgen receptor) in 101 epithelial ovarian tumors and in normal structures implicated in ovarian carcinogenesis (ovarian surface epithelium and cortical inclusion cysts) in an attempt to elucidate this process...
January 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28054715/tubal-origin-of-ovarian-cancer-the-double-edged-sword-of-haemoglobin
#19
Shiou-Fu Lin, Emily Gerry, Ie-Ming Shih
Ovarian high-grade serous carcinoma (HGSC) is the most malignant neoplasm of the gynaecologic tract. While the origins of many human malignant neoplasms are clear, the origin of HGSC remains poorly understood. This lack of knowledge limits our understanding of its pathogenesis and compromises efforts devoted to develop better early detection tools and effective preventative intervention. The tubal origin of HGSC has been put forward since the initial report of dysplastic lesions (now known as serous tubal intraepithelial carcinomas, or STICs) that morphologically resemble HGSC in the fallopian tube...
January 5, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28049216/cancer-implications-for-patients-with-endometriosis
#20
Mary Ann Wilbur, Ie-Ming Shih, James H Segars, Amanda N Fader
Endometriosis is defined as the presence of viable endometrial glands and stroma outside of the uterus. It is a common disease, occurring in 5 to 15% of all women. Endometriosis is associated with chronic pelvic pain and infertility and often requires surgical intervention for definitive treatment. Although it is a benign gynecologic condition, endometriosis shares pathophysiologic features with cancer. In recent years, both histologic and epidemiologic evidence has accumulated, suggesting that ovarian endometriosis may give rise to malignant ovarian tumors, primarily those that are epithelial in origin, known as endometriosis-associated ovarian carcinoma (EAOC) including ovarian clear cell carcinoma, endometrioid carcinoma, and the least common, seromucinous tumors...
January 2017: Seminars in Reproductive Medicine
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