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Ovarian clear cell

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https://www.readbyqxmd.com/read/29344971/clear-cell-carcinomas-of-the-ovary-and-kidney-clarity-through-genomics
#1
REVIEW
Jennifer X Ji, Yi Kan Wang, Dawn R Cochrane, David G Huntsman
Clear cell ovarian carcinoma (CCOC) and clear cell renal cell carcinoma (ccRCC) both feature clear cytoplasm due to the accumulation of cytoplasmic glycogen. Genomic studies have demonstrated several mutational similarities between these two diseases including frequent alterations in the chromatin remodeling SWI/SNF and cellular proliferation PI3K/mTOR pathways, as well as a shared hypoxia-like mRNA expression signature. Although many targeted treatment options have been approved for advance stage ccRCC, CCOC patients are still treated with conventional platinum and taxane chemotherapy, to which they are resistant...
January 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29344636/analysis-of-the-prolonged-infusion-of-dfp-10917-a-deoxycytidine-analog-as-a-therapeutic-strategy-for-the-treatment-of-human-tumor-xenografts-in-vivo
#2
Kenzo Iizuka, Chun Zhang, Kokoro Eshima, Cheng Jin, Kiyoshi Eshima, Masakazu Fukushima
2'-C-cyano-2'-deoxy-1-β-D-arabino-pentofranocyl-cytosine (DFP-10917, CNDAC) is a 2'-deoxycytidine analog with antitumor activity against various tumor cells. However, a clinically available therapeutic regimen for this compound needs to be established and its functional mechanisms in relation to the dosing schedule need to be clarified. In this study, we evaluated the antitumor activity and toxicity of DFP-10917 by varying the dose and administration schedule in human solid tumor and leukemia xenografts in vivo...
January 16, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29325268/-clinical-significance-of-targeting-drug-based-molecular-biomarkers-expression-in-ovarian-clear-cell-carcinoma
#3
M J Li, H R Li, X Cheng, R Bi, X Y Tu, F Liu, L H Chen
Objective: To assess the expression level of targeting drug-based molecular biomarkers in ovarian clear cell carcinoma (OCCC) tissues and its clinical significance. Methods: A total of 63 OCCC patients included 40 primary OCCC and 23 recurrent OCCC for secondary cytoreductive surgery (SCS), who had received primary surgeries at Fudan University Shanghai Cancer Center between January, 2008 and December, 2015 were enrolled, and immunohistochemistry SP method was used to test human epidermal growth factor receptor (EGFR), human epidermal growth factor receptor-2 (HER2), aurora kinase A (AURKA), breast cancer susceptibility gene 1 (BRCA1), BRCA2 and programmed death-ligand 1 (PD-L1)protein expression in paraffin-embedded tissues...
December 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29305171/susd2-promotes-cancer-metastasis-and-confers-cisplatin-resistance-in-high-grade-serous-ovarian-cancer
#4
Ying Xu, Chunying Miao, Chengjuan Jin, Chunping Qiu, Yinuo Li, Xiaomei Sun, Min Gao, Nan Lu, Beihua Kong
The activation of Notch3 is associated with potential progression of ovarian cancer, tumor invasion, metastasis and chemoresistance, which account for poor prognosis of high grade serous ovarian cancer (HGSOC). However, the underlying mechanisms of Notch3 are not yet very clear. Here we show that SUSD2 is one of Notch3-regulating genes and the elevated protein expression of SUSD2 in HGSOC. We also found that its high expression level was significantly correlated with worse overall survival, early recurrence and lymph nodes metastasis...
January 2, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29303934/calcification-a-disregarded-or-ignored-issue-in-the-gynecologic-tumor-microenvironments
#5
Jirui Wen, Yali Miao, Shichao Wang, Ruijie Tong, Zhiwei Zhao, Jiang Wu
Although calcification in the gynecologic tumor microenvironments is a common phenomenon, doctors and researchers still disregard or ignore the issue. In fact, this change in the gynecologic tumor microenvironments is clinically significant and a number of studies have reported an association between calcification and gynecological tumor progression. In ovarian cancer, calcification is predominantly psammomatous and largely occurs in serous papillary ovarian tumors. In addition, calcification in ovarian cancer correlated with lower histologic grade and may indicate a poorer survival rate...
January 4, 2018: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29298656/pre-clinical-validation-of-mito-targeted-nano-engineered-flavonoids-isolated-from-selaginella-bryopteris-sanjeevani-as-a-novel-cancer-prevention-strategy
#6
Arpit Bhargava, Neelam Pathak, Sriram Seshadri, Neha Bunkar, Subodh Kumar Jain, Dinesh Mishra Kumar, Nirmal Kumar Lohiya, Pradyumna Kumar Mishra
BACKGROUND: Novel bioactive plant secondary metabolites, including flavonoids, offer a spectrum of chemo-protective responses against a range of human tumor models. However, the clinical translation of these promising anti-cancer agents has been hindered largely by their poor solubility, rapid metabolism, or a combination of both, ultimately resulting in poor bioavailability upon oral administration. OBJECTIVE: To circumvent the challenges associated with herbal drug development and for effective integration into clinical setting, nano-engineering is one of the emerging pragmatic strategy which has promise to deliver therapeutic concentrations of bio-actives upon oral administration...
December 29, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29296226/annexin-a4-fucosylation-enhances-its-interaction-with-the-nf-kb-p50-and-promotes-tumor-progression-of-ovarian-clear-cell-carcinoma
#7
Huimin Wang, Lu Deng, Mingbo Cai, Huiyu Zhuang, Liancheng Zhu, Yingying Hao, Jian Gao, Juanjuan Liu, Xiao Li, Bei Lin
Objective: To study the structural relationship between annexin A4 and the Lewis y antigen and compare their expression and significance in ovarian clear cell carcinoma, and to explore how annexin A4 fucose glycosylation effects the interaction between annexin A4 and NF-kB p50, and how it promotes tumour progression of ovarian clear cell carcinoma. Methods: Structural relationships between annexin A4 and Lewis y antigen were detected using immunoprecipitation. Annexin A4 and Lewis y antigen expression in various subtypes of ovarian cancer tissues was detected by immunohistochemistry, and the relation between their expression was examined...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290781/kpna2-promotes-migration-and-invasion-in-epithelial-ovarian-cancer-cells-by-inducing-epithelial-mesenchymal-transition-via-akt-gsk-3%C3%AE-snail-activation
#8
Long Huang, Yun Zhou, Xin-Ping Cao, Jia-Xin Lin, Lan Zhang, Shu-Ting Huang, Min Zheng
Background: Increased karyopherin alpha 2 (KPNA2) expression has been demonstrated in epithelial ovarian carcinoma (EOC) tissue. However, its role in the disease is not clear. Here, we investigate the mechanism of involvement of KPNA2 in EOC. Methods: Stable cell lines expressing KPNA2, or KPNA2 shRNAs, were constructed. The effects of KPNA2 overexpression and knockdown on EOC cell migration, invasion, and epithelial-to-mesenchymal transition (EMT) were evaluated using relevant assays and western blot analysis...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29285368/role-of-endometriosis-as-a-prognostic-factor-for-post-progression-survival-in-ovarian-clear-cell-carcinoma
#9
Hiroki Ishibashi, Masashi Takano, Morikazu Miyamoto, Hiroaki Soyama, Hiroko Matsuura, Tadashi Aoyama, Tomoyuki Yoshikawa, Kento Kato, Hitoshi Tsuda, Kenichi Furuya
The clinical significance of coexistence of endometriosis (EM) in ovarian clear cell carcinoma (CCC) has not yet been determined. The aim of the present study was to analyze the correlation of endometriosis with clinicopathological factors in CCC. The cases with CCC that received primary debulking surgery at the present hospital between 1990 and 2013 were identified. Retrospective analysis was conducted to evaluate the association between complications with EM and clinicopathological features in CCC. Of the 105 cases enrolled in the study, 45 cases were complicated with EM, and 60 cases did not have EM (non-EM)...
December 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29278599/meeting-report-from-the-2016-11th-biennial-ovarian-cancer-research-symposium-mechanisms-of-initiation-and-progression-of-ovarian-cancers
#10
Jeremy Chien, Geeta Mehta
OBJECTIVE: The aim of this study was to review the latest research advances on the mechanisms of initiation and progression of ovarian cancer. METHODS: At the 11th Biennial Ovarian Cancer Research Symposium, which was held in Seattle, Washington in September 2016, leaders in ovarian cancer research convened to present and discuss current advances and future directions in ovarian cancer research. RESULTS: One session was dedicated to Mechanisms of Initiation and Progression of Ovarian Cancer, and included a keynote presentation from Dr Ronny Drapkin, MD (University of Pennsylvania), and an invited oral presentation from Laising Yen, PhD (Baylor College of Medicine)...
November 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/29277787/phenoxodiol-increases-cisplatin-sensitivity-in-ovarian-clear-cancer-cells-through-xiap-down-regulation-and-autophagy-inhibition
#11
Morikazu Miyamoto, Masashi Takano, Tadashi Aoyama, Hiroaki Soyama, Hiroki Ishibashi, Kento Kato, Hideki Iwahashi, Kazuki Takasaki, Mika Kuwahara, Hiroko Matuura, Takahiro Sakamoto, Tomoyuki Yoshikawa, Kenichi Furuya
BACKGROUND/AIM: To investigate whether XIAP down-regulation and autophagy inhibition sensitize ovarian clear cell cancer cells to cisplatin. MATERIALS AND METHODS: The ovarian clear cancer cell line KK was used for in vitro analysis. Hydroxychloroquine (HCQ) and phenoxodiol (PXD) or embelin were used as autophagy and XIAP inhibitors, respectively. Non-specific and XIAP-specific siRNAs were transfected using Lipofectamine. Cytotoxicity was assessed by MTT assays...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29277326/identification-of-the-functional-alteration-signatures-across-different-cancer-types-with-support-vector-machine-and-feature-analysis
#12
ShaoPeng Wang, YuDong Cai
Cancers are regarded as malignant proliferations of tumor cells present in many tissues and organs, which can severely curtail the quality of human life. The potential of using plasma DNA for cancer detection has been widely recognized, leading to the need of mapping the tissue-of-origin through the identification of somatic mutations. With cutting-edge technologies, such as next-generation sequencing, numerous somatic mutations have been identified, and the mutation signatures have been uncovered across different cancer types...
December 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29276164/examining-the-selection-criteria-of-neoadjuvant-chemotherapy-patients
#13
Julia Mayba, Pascal Lambert, Donna Turner, Robert Lotocki, Erin Dean, Shaundra Popowich, Alon D Altman, Mark W Nachtigal
OBJECTIVES: To identify predictors of neoadjuvant chemotherapy (NAC) and to examine toxicities, dose reduction, interruptions, and second-line chemotherapy MATERIALS AND METHODS: A retrospective chart review of 391 patients with late-stage ovarian cancer diagnosed between January 1, 2004 and December 31, 2010 was conducted. Logistic regression was used to predict chemotherapy type. Cumulative incidence of toxicities, dose reduction, and treatment interruption were calculated using the Kaplan-Meier method...
December 21, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/29262378/occurrence-of-sulfonated-steroids-and-ovarian-expression-of-steroid-sulfatase-and-sult1e1-in-cyclic-cows
#14
Carina Blaschka, Gerhard Schuler, Alberto Sánchez-Guijo, Bettina Zimmer, Sabine Feller, Franziska Kotarski, Stefan A Wudy, Christine Wrenzycki
Historically sulfonated steroids were primarily considered as inactive metabolites destined for elimination. However, more recently they have been increasingly recognized as precursors for the production of bioactive steroids in target tissues and as functional molecules without preceding hydrolysis. In order to comprehensively characterize their occurrence in cyclic cows and their formation and hydrolysis in bovine ovarian steroidogenesis, ovaries from cyclic cows were screened for the expression of oestrogen sulfotransferase (SULTE1) and steroid sulfatase (STS) by Western blot and immunohistochemistry...
December 17, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29248013/fertility-sparing-surgery-in-advanced-stage-malignant-ovarian-germ-cell-tumor-a-case-report
#15
Montassar Ghalleb, Hatem Bouzaiene, Skander Slim, Achraf Hadiji, Monia Hechiche, Jamel Ben Hassouna, Khaled Rahal
BACKGROUND: Malignant ovarian germ cell tumor is a rare type of disease, which generally has a good prognosis due to the high chemosensitivity of this type of tumor. Fertility preservation is an important issue because malignant ovarian germ cell tumor commonly affects young women. Although conservation is the standard for early stage, it becomes more debatable as the disease progresses to more advanced stages. AIM: Report the case of a patient with an International Federation of Gynecology and Obstetrics Stage IIIc malignant ovarian germ cell tumor, who had conservative surgery and chemotherapy with a good fertility outcome...
December 17, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29247567/adam9-is-over-expressed-in-human-ovarian-clear-cell-carcinomas-and-suppresses-cisplatin-induced-cell-death
#16
Mari Ueno, Takayuki Shiomi, Satsuki Mochizuki, Miyuki Chijiiwa, Masayuki Shimoda, Yae Kanai, Fumio Kataoka, Akira Hirasawa, Nobuyuki Susumu, Daisuke Aoki, Yasunori Okada
ADAMs (a disintegrin and metalloproteinases) are involved in various biological events such as cell adhesion, migration and invasion, membrane protein shedding and proteolysis. However, there have been no systematic studies on the expression of ADAMs in human ovarian carcinomas. We therefore examined the mRNA expression of all the proteolytic ADAM species including ADAM8, 9, 10, 12, 15, 17, 19, 20, 21, 28, 30, 33 and ADAMDEC1 in human ovarian carcinomas, and found that prototype membrane-anchored ADAM9m, but not secreted isoform ADAM9s, is significantly over-expressed in the carcinomas than in the control non-neoplastic ovarian tissue...
December 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/29241974/endometriosis-associated-ovarian-neoplasia
#17
REVIEW
Xavier Matias-Guiu, Colin J R Stewart
This article reviews the most relevant pathological and molecular features of ovarian tumours that are associated with endometriosis. Endometriosis is a common condition, affecting 5-15% of all women, and it has been estimated that 0.5-1% of cases are complicated by neoplasia. The most common malignant tumours in this setting are endometrioid adenocarcinoma and clear cell adenocarcinoma, each accounting for approximately 10% of ovarian carcinomas in Western countries. A minority of cases are associated with Lynch syndrome...
December 11, 2017: Pathology
https://www.readbyqxmd.com/read/29235520/ubiquitin-conjugating-enzyme-e2t-ube2t-and-denticleless-protein-homolog-dtl-are-linked-to-poor-outcome-in-breast-and-lung-cancers
#18
Javier Perez-Peña, Verónica Corrales-Sánchez, Eitan Amir, Atanasio Pandiella, Alberto Ocana
Protein ubiquitination and degradation represent druggable vulnerabilities of cancer cells. We used gene expression and functional annotation analyses to identify genes in the ubiquitin pathway which are differentially expressed between normal breast and basal-like tumors. With this approach we identified 16 ubiquitin related genes overexpressed in basal-like breast cancers compared with normal breast. We then explored the association between these genes and outcomes using the KMPlotter online tool. Two genes, the ubiquitin-conjugating enzyme E2T (UBE2T) and the denticleless protein homolog (DTL) were overexpressed and linked with detrimental outcome in basal-like and luminal breast cancer patients...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29233531/genomic-landscape-of-ovarian-clear-cell-carcinoma-via-whole-exome-sequencing
#19
Se Ik Kim, Ji Won Lee, Maria Lee, Hee Seung Kim, Hyun Hoon Chung, Jae-Weon Kim, Noh Hyun Park, Yong-Sang Song, Jeong-Sun Seo
OBJECTIVE: To analyze whole exome sequencing (WES) data on ovarian clear cell carcinoma (OCCC) in Korean patients via the technique of next generation sequencing (NGS). Genomic profiles were compared between endometriosis-associated OCCC (EMS-OCCC) and Non-EMS-OCCC. METHODS: We used serum samples and cancer tissues, stored at the Seoul National University Hospital Human Biobank, that were initially collected from women diagnosed with OCCC between 2012 and 2016. In total, 15 patients were enrolled: 5 with pathologically confirmed EMS-OCCC and 10 with Non-EMS-OCCC...
December 9, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/29228547/integrated-genomic-analysis-of-clear-cell-ovarian-cancers-identified-prkci-as-a-potential-therapeutic-target
#20
Tsun Yee Tsang, Wei Wei, Hiroaki Itamochi, Rosemary Tambouret, Michael J Birrer
Clear cell ovarian cancer (CCOC) is an epithelial ovarian cancer histotype with unique pathologic, biologic and clinical features. Despite its worse prognosis than serous ovarian cancer (SOC), the genomic landscape of CCOC is less well defined. Integrated genomic analysis of CCOC allows the identification of potential therapeutic targets to improve the treatment of this tumor. Using comparative genomic hybridization and gene expression profiling, we have screened 12 CCOC cell lines and 40 tumors to identify 45 amplified and overexpressed genes...
November 14, 2017: Oncotarget
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