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Ovarian clear cell carcinoma

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https://www.readbyqxmd.com/read/28711162/actin-cytoskeleton-stiffness-grades-metastatic-potential-of-ovarian-carcinoma-hey-a8-cells-via-nanoindentation-mapping
#1
Z L Zhou, X X Sun, J Ma, M H Tong, S K Y To, A S T Wong, A H W Ngan
Recent studies have indicated that the nanoindentation measured stiffness of carcinoma adherent cells is in general lower than normal cells, thus suggesting that cell stiffness may serve as a bio-marker for carcinoma. However, the proper establishment of such a conclusion would require biophysical understanding of the underlying mechanism of the cell stiffness. In this work, we compared the elastic moduli of the actin cytoskeletons of Hey A8 ovarian carcinoma cells with and without metastasis (HM and NM), as measured by 2D atomic force microscopy (AFM) with low-depth nanoindentation via a rate-jump method...
July 5, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/28673661/prognostic-impact-of-interleukin-6-expression-in-stage-i-ovarian-clear-cell-carcinoma
#2
Ayako Kawabata, Nozomu Yanaihara, Chie Nagata, Misato Saito, Daito Noguchi, Masataka Takenaka, Yasushi Iida, Hirokuni Takano, Kyosuke Yamada, Masami Iwamoto, Takako Kiyokawa, Aikou Okamoto
OBJECTIVE: Ovarian clear cell carcinoma (OCCC) frequently presents at an early stage. In stage I OCCC, the prognosis differs according to substage. In particular, predictive biomarkers and new treatment strategies are needed for stage IC2/IC3 disease. We investigated tumor biology and prognostic factors for stage I OCCC from a clinicopathological perspective, including the expression of ARID1A and IL-6, which are considered critical for OCCC carcinogenesis. METHODS: A retrospective cohort study of 192 patients with stage I OCCC treated at a single institution was performed...
June 30, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28668894/expression-of-polypeptide-n-acetylgalactosaminyltransferase-6-in-epithelial-ovarian-carcinoma
#3
Midori Murakami, Seiji Kagami, Thuy Thi Nguyen, Chiho Koi, Tomoko Kurita, Toru Hachisuga
BACKGROUND: The family of polypeptide N-acetylgalactosanimyltransferases (GalNAc-Ts) are important factors in glycosylation in carcinomas. The purpose of this study was to investigate the clinical significance of GalNAc-T6 and its correlation with the prognosis of epithelial ovarian carcinoma. MATERIALS AND METHODS: A total of 150 patients with epithelial ovarian carcinoma were enrolled and the relationship between GalNAc-T6 expression by immunohistochemistry and long-term survival was evaluated...
July 2017: Anticancer Research
https://www.readbyqxmd.com/read/28652252/glycerol-3-phosphate-acyltransferase-1-promotes-tumor-cell-migration-and-poor-survival-in-ovarian-carcinoma
#4
Rosemarie Marchan, Bettina Büttner, Jörg Lambert, Karolina Edlund, Iris Glaeser, Meinolf Blaszkewicz, Gregor Leonhardt, Lisa Marienhoff, Darius Kaszta, Moritz Anft, Carsten Watzl, Katrin Madjar, Marianna Grinberg, Eugen Rempel, Roland Hergenröder, Silvia Selinski, Jörg Rahnenführer, Michaela S Lesjak, Joanna D Stewart, Cristina Cadenas, Jan G Hengstler
Glycerophosphodiesterase EDI3 (GPCPD1; GDE5; GDPD6) has been suggested to promote cell migration, adhesion and spreading, but its mechanisms of action remain uncertain. In this study, we targeted the glycerol-3-phosphate acyltransferase GPAM along with choline kinase-α (CHKA), the enzymes that catabolize the products of EDI3 to determine which downstream pathway is relevant for migration. Our results clearly showed that GPAM influenced cell migration via the signaling lipid lysophosphatidic acid (LPA), linking it with GPAM to cell migration...
June 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/28646535/targeting-stat3-by-ho3867-induces-apoptosis-in-ovarian-clear-cell-carcinoma
#5
Kristin Bixel, Uksha Saini, Hemant Kumar Bid, John Fowler, Maria Riley, Ross Wanner, Kalpana Deepa Priya Dorayappan, Sneha Rajendran, Ikuo Konishi, Noriomi Matsumura, David E Cohn, Karuppaiyah Selvendiran
Advanced ovarian clear cell carcinoma (OCCC) carries a very poor prognosis in large part secondary to the extremely high rate of resistance to standard platinum and taxane chemotherapy. STAT3 expression and activation has been shown to regulate tumor progression in various human cancers, though has not been well studied in OCCC. Preliminary work in our lab has demonstrated constitutive activation of STAT3 (pSTAT3Tyr705 or pSTAT3727) in OCCC cell lines as well as human OCCC tumor tissue samples. Significantly, pSTAT3 is expressed in the absence of other forms of activated STAT (pSTAT1, 2, 6)...
June 24, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28639280/mutational-profiles-of-brenner-tumors-show-distinctive-features-uncoupling-urothelial-carcinomas-and-ovarian-carcinoma-with-transitional-cell-histology
#6
Nicole Pfarr, Silvia Darb-Esfahani, Jonas Leichsenring, Eliane Taube, Melanie Boxberg, Ioana Braicu, Moritz Jesinghaus, Roland Penzel, Volker Endris, Aurelia Noske, Wilko Weichert, Peter Schirmacher, Carsten Denkert, Albrecht Stenzinger
Brenner tumors (BT) are rare ovarian tumors encompassing benign, borderline and malignant variants. While the histopathology of BTs and their clinical course is well described, little is known about the underlying genetic defects. We employed targeted next generation sequencing to analyze the mutational landscape in a cohort of 23 BT cases (17 benign, 2 borderline, 4 malignant) and 3 ovarian carcinomas with transitional cell histology (TCC). Copy number variations (CNV) were validated by fluorescence in-situ hybridization (FISH) and quantitative PCR-based copy number assays...
June 22, 2017: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/28635231/-comparison-of-paired-box-genes-8-and-2-expression-in-epithelium-tissues-and-the-related-tumors
#7
Y Song, X Huang, G H Shen, X Y Liu, X Zhang
Objective: To explore the expressional differences between paired box genes 2(Pax2) and 8 (Pax8) protein in different kinds of epitheliums and tumors, and to investigate the clinicopathologic significance. Methods: Expression levels of Pax2 and Pax8 protein were detected in 75 cases of different human epithelium tissues and 255 cases of different tumors on tissue microarray by immunohistochemistry. Results: Pax2 and Pax8 selectively expressed in different tissues. The positive rates of Pax8 protein expressed in the normal epithelium of the thyroid, urinary system and female reproductive system were 100% (2/2), 60...
June 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28625395/l1cam-expression-associates-with-poor-outcome-in-endometrioid-but-not-in-clear-cell-ovarian-carcinoma
#8
Piret Soovares, Annukka Pasanen, Ralf Bützow, Heini Lassus
OBJECTIVE: Our aim was to study the expression of L1CAM in endometrioid and clear cell ovarian carcinomas and to evaluate its correlation with clinical parameters and patient prognosis. METHODS: Tissue microarray -based immunohistochemical analysis of L1CAM expression was performed in 249 endometrioid and 140 clear cell ovarian carcinomas. Concurrent endometrial carcinoma was found in 57 of these patients. RESULTS: L1CAM expression was found in 15% of endometrioid and 23% of clear cell ovarian carcinomas...
June 15, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28611940/involvement-of-chromatin-remodeling-genes-and-the-rho-gtpases-rhob-and-cdc42-in-ovarian-clear-cell-carcinoma
#9
Nicolai Skovbjerg Arildsen, Jenny-Maria Jönsson, Katarina Bartuma, Anna Ebbesson, Sofia Westbom-Fremer, Anna Måsbäck, Susanne Malander, Mef Nilbert, Ingrid A Hedenfalk
OBJECTIVE: Ovarian clear cell carcinomas (OCCCs) constitute a rare ovarian cancer subtype with distinct clinical features, but may nonetheless be difficult to distinguish morphologically from other subtypes. There is limited knowledge of genetic events driving OCCC tumorigenesis beyond ARID1A, which is reportedly mutated in 30-50% of OCCCs. We aimed to further characterize OCCCs by combined global transcriptional profiling and targeted deep sequencing of a panel of well-established cancer genes...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28593716/does-an-epidemiological-comparison-support-a-common-cellular-lineage-for-similar-subtypes-of-postmenopausal-uterine-and-ovarian-carcinoma-the-norwegian-women-and-cancer-study
#10
Mie Jareid, Idlir Licaj, Karina Standahl Olsen, Eiliv Lund, Hege M Bøvelstad
Uterine and ovarian carcinomas have the same major histological subtypes, but whether they originate from the same cell types is a matter of ongoing debate. Uterine and ovarian endometrioid and clear cell carcinoma (ECC) and uterine and ovarian serous carcinoma (SC) may originate in the same location, or share a common lineage of differentiation. Epidemiologically, a common cellular lineage should be reflected in similar risk associations, and we explored the similarity of uterine and ovarian ECC and uterine and ovarian SC...
June 8, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28575188/expression-of-otub1-in-hepatocellular-carcinoma-and-its-effects-on-hcc-cell-migration-and-invasion
#11
Qinggan Ni, Jiahui Chen, Xia Li, Xiaodong Xu, Nannan Zhang, Ang Zhou, Bin Zhou, Qian Lu, Zhong Chen
OTUB1 (OTU domain-containing, ubiquitin aldehyde binding protein 1) is a deubiquitinating enzyme (DUB) that belongs to the ovarian tumor (OTU) domain protease superfamily. Although it has been demonstrated to play important roles in the development of many kinds of cancer, the mechanism of OTUB1 in hepatocellular carcinoma (HCC) is not clear. The aim of this study was to explore the roles of OTUB1 in HCC progression using cell lines and 115 archived HCC samples. In addition, the clinical outcomes were also analyzed with a special focus on OTUB1 expression in HCC samples...
June 1, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28574932/vascular-endothelial-growth-factor-vegf-polymorphisms-and-serum-vegf-levels-in-women-with-epithelial-ovarian-cancer-benign-tumors-and-healthy-ovaries
#12
Blanca González-Palomares, Pluvio J Coronado Martín, María Luisa Maestro de Las Casas, Silvia Veganzones de Castro, Sara Rafael Fernández, Marta Vidaurreta Lázaro, Virginia De la Orden García, Jose Antonio Vidart Aragon
OBJECTIVE: This study analyzed the relation of 5 single-nucleotide polymorphisms (SNPs) in the VEGF (vascular endothelial growth factor) gene in patients with epithelial ovarian cancer (EOC), compared with patients carrying benign tumors or healthy ovaries. We studied serum VEGF levels and the relation with SNPs and association between VEGF SNPs and haplotypes with progression-free survival (PFS) in patients with cancer. METHODS: The genotyping of VEGF gene polymorphisms (-2578 C/A, -1154 G/A, -460 T/C, +405 G/C, +936 C/T) was performed in DNA isolated from blood samples of 100 women...
June 1, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28572537/down-regulation-of-ubc9-increases-the-sensitivity-of-hepatocellular-carcinoma-to-doxorubicin
#13
Sufen Fang, Junyao Qiu, Zheng Wu, Tao Bai, Wuhua Guo
UBC9 is an E2-conjugating enzyme that is required for SUMOylation and has been implicated in regulating several critical cellular pathways. UBC9 is overexpressed in certain tumors, such as lung adenocarcinoma, ovarian carcinoma and melanoma, which implies that it has special clinical significance. However, the role of UBC9 in Hepatocellular carcinoma (HCC) drug responsiveness is not clear. In this study, we investigated the clinicopathological significance of UBC9 in HCC and investigated the mechanism of UBC9-mediated chemosensitivity to doxorubicin (DOX) in hepatocellular carcinoma cells...
May 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28567322/contralateral-ovarian-metastasis-of-clear-cell-renal-carcinoma-a-rare-case-report-and-review-of-the-literature
#14
Fatih Uruc, Serkan Akan, Aytaç Sahin, Caglar Yildirim, Ahmet Urkmez
Renal cell carcinoma (RCC) constitutes 2-3% of all types of cancers. RCCs metastasize into lungs (50-60%), lymph nodes (36%), bones (30-40%), liver (30-40%), and brain (5%) in respective percentages. RCC rarely metastasizes into ovary. Only 25 cases of ovarian tumor, which metastasized into kidneys, have been presented. In the literature, a kidney-ovary axis has been defined, and its interrelationship begins with embryological life. With this case report, we aimed both to present a very rarely seen metastasis of RCC into contralateral ovary and also to review the literature...
2017: Case Reports in Surgery
https://www.readbyqxmd.com/read/28545269/-risk-factors-of-endometriosis-associated-ovarian-carcinoma-in-women-aged-45-years-and-older
#15
Z X He, S Wang, Z F Li, L Zhu, J H Leng, J H Lang
Obiective: To explore the risk factors of endometriosis-associated ovarian cancer (EAOC) in women with ovarian endometriosis aged 45 years and older in China. Methods: The medical records of total 1 038 women aged 45 years and older with a surgicopathological diagnosis of ovarian endometriosis treated at Peking Union Medical College Hospital from December 1994 to December 2014 were reviewed. Histology evaluation determined ovarian endometriosis with (n=30) or without (n=1 008) ovarian cancer. Results: (1) There were 30 (2...
May 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28541641/update-on-rare-epithelial-ovarian-cancers-based-on-the-rare-ovarian-tumors-young-investigator-conference
#16
REVIEW
Ji Yon Agnes Jang, Nozomu Yanaihara, Eric Pujade-Lauraine, Yoshiki Mikami, Katsutoshi Oda, Michael Bookman, Jonathan Ledermann, Muneaki Shimada, Takako Kiyokawa, Byoung Gie Kim, Noriomi Matsumura, Tsunehisa Kaku, Takafumi Kuroda, Yoko Nagayoshi, Ayako Kawabata, Yasushi Iida, Jae Weon Kim, Michael Quinn, Aikou Okamoto
There has been significant progress in the understanding of the pathology and molecular biology of rare ovarian cancers, which has helped both diagnosis and treatment. This paper provides an update on recent advances in the knowledge and treatment of rare ovarian cancers and identifies gaps that need to be addressed by further clinical research. The topics covered include: low-grade serous, mucinous, and clear cell carcinomas of the ovary. Given the molecular heterogeneity and the histopathological rarity of these ovarian cancers, the importance of designing adequately powered trials or finding statistically innovative ways to approach the treatment of these rare tumors has been emphasized...
July 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28527614/n-o-344-salpingectomie-opportuniste-et-autres-m%C3%A3-thodes-pour-r%C3%A3-duire-le-risque-de-cancer-de-l-ovaire-de-la-trompe-de-fallope-et-du-p%C3%A3-ritoine-dans-la-population-g%C3%A3-n%C3%A3-rale
#17
Shannon Salvador, Stephanie Scott, Julie Ann Francis, Anita Agrawal, Christopher Giede
OBJECTIF: La présente directive clinique examine les avantages potentiels de la salpingectomie opportuniste pour prévenir le développement du cancer séreux de grade élevé de l'ovaire, de la trompe de Fallope et du péritoine à la lumière de données probantes actuelles selon lesquelles ce type de cancer prendrait naissance dans la trompe de Fallope. UTILISATEURS CIBLES: Gynécologues, obstétriciens, médecins de famille, infirmières autorisées, infirmières praticiennes, résidents et fournisseurs de soins de santé...
June 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28527613/no-344-opportunistic-salpingectomy-and-other-methods-of-risk-reduction-for-ovarian-fallopian-tube-peritoneal-cancer-in-the-general-population
#18
Shannon Salvador, Stephanie Scott, Julie Ann Francis, Anita Agrawal, Christopher Giede
OBJECTIVE: This guideline reviews the potential benefits of opportunistic salpingectomy to prevent the development of high grade serous cancers (HGSC) of the ovary/fallopian tube/peritoneum based on current evidence supporting the fallopian tube origin of disease. INTENDED USERS: Gynaecologists, obstetricians, family doctors, registered nurses, nurse practitioners, residents, and health care providers. TARGET POPULATION: Adult women (18 and older): OPTIONS: Women considering hysterectomy who wish to retain their ovaries in situ have traditionally also retained their fallopian tubes...
June 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28523322/synchronous-bilateral-primary-ovarian-carcinoma-case-presentation
#19
Crîngu Antoniu Ionescu, Simona Vlădăreanu, Liana Pleş, Mihai Cornel Traian Dimitriu, Gheorghe Oto Furău, Teodora Camelia Vlădescu, Alina Mihaela Călin, NuŢi Daniela Oprescu
Bilateral synchronous primary ovarian carcinoma, histopathologically identical or different is a rare entity encountered in clinical practice. We present the case of a 38-year-old patient who is admitted with the presence of a massive pelvic abdominal tumor formation of 45÷35÷25 cm occupying the lower pelvic and upper abdominal floor, reaching halfway distance between the umbilicus and sternum and lateral bilaterally in the two abdominal flanks until iliac wing. The mixed transabdominal÷transvaginal ultrasound and computed tomography (CT), establish the diagnosis of bilateral ovarian tumor...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28501328/evaluation-of-venous-thrombosis-and-tissue-factor-in-epithelial-ovarian-cancer
#20
Joshua G Cohen, Emily Prendergast, Julia E Geddings, Ann E Walts, Hasmik Agadjanian, Yohei Hisada, Beth Y Karlan, Nigel Mackman, Christine S Walsh
OBJECTIVE: Ovarian clear cell carcinoma (OCCC) and high grade serous ovarian cancer (HGSOC) are associated with the highest risk of VTE among patients with epithelial ovarian cancer (EOC). Tissue factor (TF) is a transmembrane glycoprotein which can trigger thrombosis. We sought to evaluate if there is an association between VTE and tumor expression of tissue factor (TF), plasma TF, and microvesicle TF (MV TF) activity in this high-risk population. METHODS: We performed a case-control study of OCCC and HGSOC patients with and without VTE...
July 2017: Gynecologic Oncology
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