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https://www.readbyqxmd.com/read/28810294/-morphologic-features-of-fallopian-tubal-epithelium-in-pelvic-high-grade-serous-carcinoma
#1
R J Zhao, Y Y Wang, Z Li, K Y Wu, L F Kong, W X Zheng
Objective: To study the pathologic features of fallopian tubal epithelium in patients with pelvic high-grade serous carcinoma (HGSC), to investigate its role in pelvic serous carcinogenesis and to reclassify the primary site of HGSC based on recently proposed criteria. Methods: The fallopian tubes in 58 cases of pelvic HGSC (54 cases of ovarian primary, 3 cases of tubal primary, 1 case of peritoneum) and 25 cases of pelvic non-HGSC (5 cases of ovarian low-grade serous cancer, 9 cases of endometrioid cancer, and 11 cases of clear cell ovary carcinoma) were collected from June 2015 to December 2016, and serially examined under light microscope (SEE-FIM protocol)...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28807367/an-evaluation-of-progression-free-survival-and-overall-survival-of-ovarian-cancer-patients-with-clear-cell-carcinoma-versus-serous-carcinoma-treated-with-platinum-therapy-an-nrg-oncology-gynecologic-oncology-group-experience
#2
Kate E Oliver, William E Brady, Michael Birrer, David M Gershenson, Gini Fleming, Larry J Copeland, Krishnansu Tewari, Peter A Argenta, Robert S Mannel, Angeles Alvarez Secord, Jean-Marie Stephan, David G Mutch, Frederick B Stehman, Franco M Muggia, Peter G Rose, Deborah K Armstrong, Michael A Bookman, Robert A Burger, John H Farley
PURPOSE: We examined disparities in prognosis between patients with ovarian clear cell carcinoma (OCCC) and serous epithelial ovarian cancer (SOC). METHODS: We reviewed data from FIGO stage I-IV epithelial ovarian cancer patients who participated in 12 prospective randomized GOG protocols. Proportional hazards models 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, 9531 were eligible, evaluable and treated with platinum, of whom 544 (6%) had OCCC, 7054 (74%) had SOC, and 1933 (20%) had other histologies and are not included further...
August 11, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28806962/oncofertility-in-patients-with-stage-i-epithelial-ovarian-cancer-fertility-sparing-surgery-in-young-women-of-reproductive-age
#3
Xuan Jiang, Jiaxin Yang, Mei Yu, Weimin Xie, Dongyan Cao, Ming Wu, Lingya Pan, Huifang Huang, Yan You, Keng Shen
BACKGROUND: Fertility-sparing surgery is indicated for patients with stage I epithelial ovarian cancers. We sought to evaluate the clinical outcomes and oncofertility in a cohort of patients of reproductive age with stage I epithelial ovarian cancer (EOC). METHODS: Overall, 108 patients of reproductive age (≤ 40 years) diagnosed with stage I EOC who were treated at Peking Union Medical College Hospital between 1999 and 2013 were included in the study. The Kaplan-Meier model and Cox regression analyses were used for the survival analysis...
August 15, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28800941/survival-and-safety-associated-with-aggressive-surgery-for-stage-iii-iv-epithelial-ovarian-cancer-a-single-institution-observation-study
#4
Shinichi Tate, Kazuyoshi Kato, Kyoko Nishikimi, Ayumu Matsuoka, Makio Shozu
OBJECTIVE: We evaluated the efficacy and safety of aggressive surgery for advanced ovarian cancer at a non-high-volume center. MATERIALS AND METHODS: We evaluated consecutive patients with stage III/IV ovarian, fallopian, and peritoneal cancer undergoing elective aggressive surgery from January 2008 to December 2012, which encompassed the first 5years after implementing an aggressive surgery protocol. After receiving appropriate training for 9months, a gynecological surgical team began performing multi-visceral resections...
August 8, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28796747/morphologic-and-immunohistochemical-study-of-clear-cell-carcinoma-of-the-uterine-endometrium-and-cervix-in-comparison-to-ovarian-clear-cell-carcinoma
#5
Baohui Ju, Jianmei Wang, Bo Yang, Lin Sun, Yuhong Guo, Quan Hao, Jianghua Wu
Endometrial clear cell carcinoma (ECCC) and clear cell adenocarcinoma of the cervix (CCAC) are uncommon gynecologic cancers that have morphologic and phenotypic features similar to ovarian clear cell carcinoma (OCCC), but the 3 entities may not be completely identical. This study identified the morphologic and phenotypic characteristics and the differences between ECCC and CCAC in Comparison to OCCC. The morphologic features of 16 ECCCs, 7 CCACs, and 22 OCCCs are described. The immunoprofiles of hepatocyte nuclear factor (HNF) 1β, napsin A, estrogen, progesterone, p53, and Ki-67 were assessed...
August 7, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28791695/use-of-antidepressants-and-risk-of-epithelial-ovarian-cancer
#6
Lina S Mørch, Christian Dehlendorff, Louise Baandrup, Søren Friis, Susanne K Kjaer
Antidepressants are widely prescribed among women to treat depression and anxiety disorders, but studies of their effects on gynecological cancer risk are sparse. We assessed associations between various antidepressants and risk of epithelial ovarian cancer. By using Danish nationwide registers, we identified all women (cases) aged 30 to 84 years with incident epithelial (serous, endometrioid, clear cell or mucinous) ovarian cancer during 2000-2011 (n= 4,103) and matched each case to 20 population controls (n=58,706) by risk-set matching...
August 9, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28779965/assessing-the-risk-of-pelvic-and-para-aortic-nodal-involvement-in-apparent-early-stage-ovarian-cancer-a-predictors-and-nomogram-based-analyses
#7
Giorgio Bogani, Elena Tagliabue, Antonino Ditto, Mauro Signorelli, Fabio Martinelli, Jvan Casarin, Valentina Chiappa, Giulia Dondi, Umberto Leone Roberti Maggiore, Cono Scaffa, Chiara Borghi, Luca Montanelli, Domenica Lorusso, Francesco Raspagliesi
OBJECTIVE: To estimate the prevalence of lymph node involvement in early-stage epithelial ovarian cancer in order to assess the prognostic value of lymph node dissection. METHODS: Data of consecutive patients undergoing staging for early-stage epithelial ovarian cancer were retrospectively evaluated. Logistic regression and a nomogram-based analysis were used to assess the risk of lymph node involvement. RESULTS: Overall, 290 patients were included...
August 2, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28765941/b7-h3-is-related-to-tumor-progression-in-ovarian-cancer
#8
Jingjing Zhang, Lu Liu, Sai Han, Yi Li, Qiuhong Qian, Qianqian Zhang, Hui Zhang, Ziyan Yang, Youzhong Zhang
B7-H3, a co-stimulatory molecule, has been found expressed in ovarian cancer, but its role and mechanism is not clear. In this study, we further verified the expression of B7-H3 in ovarian carcinoma and normal epithelial ovarian tissues. Three ovarian cancer cell lines, A2780, SKOV3 and HO8910 were selected to explore the effects of B7-H3 on proliferation, apoptosis, migration and invasion. We found that B7-H3 was mainly located in the cytoplasm of ovarian cancer cells as determined by immunofluorescence staining...
July 31, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28760368/is-adjuvant-chemotherapy-beneficial-for-surgical-stage-i-ovarian-clear-cell-carcinoma
#9
Liat Hogen, Harry Brar, Allan Covens, Dina Bassiouny, Marcus Q Bernardini, Lilian T Gien, Sarah E Ferguson, Danielle Vicus
Objective To assess the impact of adjuvant chemotherapy on survival in patients with surgical stage I ovarian clear cell carcinoma (OCCC). METHODS: Data collection and analysis of surgical stage I OCCC patients treated at two tertiary cancer centers was performed. Descriptive statistics, univariate and multivariable analyses and Kaplan-Meier survival probability estimates were completed. RESULTS: Sixty stage I OCCC patients who underwent comprehensive surgical staging were identified...
July 28, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28758377/could-fertility-sparing-surgery-be-considered-for-women-with-early-stage-ovarian-clear-cell-carcinoma
#10
Dimitrios Nasioudis, Eloise Chapman-Davis, Melissa K Frey, Steven S Witkin, Kevin Holcomb
OBJECTIVE: The aim of the present retrospective population-based study was to investigate the oncologic impact of uterine and ovarian preservation (OP) in premenopausal women with stage IA or IC ovarian clear cell carcinoma (OCCC). METHODS: The National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) database was accessed and a cohort of surgically-staged premenopausal women (age <50 years) diagnosed with unilateral stage IA or IC OCCC was drawn...
July 3, 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28756138/mutant-p53-as-a-target-for-cancer-treatment
#11
REVIEW
Michael J Duffy, Naoise C Synnott, John Crown
TP53 (p53) is the single most frequently altered gene in human cancers, with mutations being present in approximately 50% of all invasive tumours. However, in some of the most difficult-to-treat cancers such as high-grade serous ovarian cancers, triple-negative breast cancers, oesophageal cancers, small-cell lung cancers and squamous cell lung cancers, p53 is mutated in at least 80% of samples. Clearly, therefore, mutant p53 protein is an important candidate target against which new anticancer treatments could be developed...
July 27, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28752851/a-key-hdac6-dependency-of-arid1a-mutated-ovarian-cancer
#12
Lucia Altucci
Mutations in AT rich interactive domain 1A (ARID1A) are common in ovarian cancers. A study now shows that HDAC6 activity is required for survival of ovarian cancer cells bearing ARID1A mutations. HDAC6 inhibition selectively promotes apoptosis of ARID1A-inactivated cells, supporting the use of HDAC6 inhibition in the treatment of clear cell ovarian cancer.
July 28, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28752845/mismatch-repair-status-and-pd-l1-expression-in-clear-cell-carcinomas-of-the-ovary-and-endometrium
#13
Brian C Willis, Emily A Sloan, Kristen A Atkins, Mark H Stoler, Anne M Mills
Clear cell carcinoma represents a distinct histologic type of müllerian carcinoma that is resistant to conventional chemotherapy. Expression of programmed cell death ligand (PD-L1) has been associated with immune evasion in numerous tumor types and may be used to identify patients who will benefit from targeted immunotherapy, particularly in the setting of mismatch repair defects. We evaluated PD-L1 expression in 23 ovarian clear cell carcinomas and 21 endometrial clear cell carcinomas, and correlated expression with mismatch repair status...
July 28, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28751475/recent-trends-in-ovarian-cancer-incidence-and-relative-survival-in-the-u-s-by-race-ethnicity-and-histologic-subtypes
#14
Hyo K Park, Julie J Ruterbusch, Michele L Cote
BACKGROUND: Incidence and survival rates of non-serous epithelial ovarian cancer in racial/ethnic minorities remain relatively unknown in the United States (U.S.). We examine the trends in incidence and survival rates for epithelial ovarian cancer by histologic subtypes and race/ethnicity. METHODS: Ovarian cancer incidence and mortality data from 2000-2013 were obtained from Surveillance, Epidemiology, and End Results database. Age-adjusted incidence rate, incidence rate ratio, and annual percentage changes (APC) were calculated by histology and race/ethnicity subgroups and stratified by age at diagnosis...
July 27, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28749468/wwox-sensitises-ovarian-cancer-cells-to-paclitaxel-via-modulation-of-the-er-stress-response
#15
Szymon Janczar, Jaya Nautiyal, Yi Xiao, Edward Curry, Mingjun Sun, Elisa Zanini, Adam Jw Paige, Hani Gabra
There are clear gaps in our understanding of genes and pathways through which cancer cells facilitate survival strategies as they become chemoresistant. Paclitaxel is used in the treatment of many cancers, but development of drug resistance is common. Along with being an antimitotic agent paclitaxel also activates endoplasmic reticulum (ER) stress. Here, we examine the role of WWOX (WW domain containing oxidoreductase), a gene frequently lost in several cancers, in mediating paclitaxel response. We examine the ER stress-mediated apoptotic response to paclitaxel in WWOX-transfected epithelial ovarian cancer (EOC) cells and following siRNA knockdown of WWOX...
July 27, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28736743/oncolytic-adenovirus-loaded-menstrual-blood-stem-cells-overcome-the-blockade-of-viral-activity-exerted-by-ovarian-cancer-ascites
#16
Ana Laura Alfano, Alejandro Nicola Candia, Nicasio Cuneo, Leandro N Guttlein, Alejandro Soderini, Cecilia Rotondaro, Leonardo Sganga, Osvaldo L Podhajcer, M Veronica Lopez
Patients with ovarian cancer present peritoneal ascites at recurrence as a marker of disseminated disease and dismal prognosis. Oncolytic immunotherapy is an emerging approach for the treatment of disseminated cancer. In the present work, we constructed a novel oncolytic adenovirus, AR2011, to target malignant ovarian tumors. AR2011 exhibited a clear lytic effect in vitro in human ovarian cancer cell lines and malignant cells obtained from ascitic fluids (AFs) of patients with ovarian cancer. AR2011 activity was neutralized by antibodies present in 31 samples of patient-derived AFs...
September 15, 2017: Molecular Therapy Oncolytics
https://www.readbyqxmd.com/read/28733544/identification-of-lefty-as-a-molecular-marker-for-ovarian-clear-cell-carcinoma
#17
Masashi Akiya, Masaaki Yamazaki, Toshihide Matsumoto, Yusuke Kawashima, Yasuko Oguri, Sabine Kajita, Daiki Kijima, Risako Chiba, Ako Yokoi, Hiroyuki Takahashi, Yoshio Kodera, Makoto Saegusa
To identify proteins involved in ovarian clear cell carcinoma (OCCCa), shotgun proteomics analysis was applied using formalin-fixed and paraffin-embedded samples of ovarian carcinoma. Analysis of 1521 proteins revealed that 52 were differentially expressed between four OCCCa and 12 non-OCCCa samples. Of the highly expressed proteins in OCCCa, we focused on left-right determination factor (LEFTY), a novel member of the transforming growth factor-β superfamily. In 143 cases of ovarian epithelial carcinoma including 99 OCCCas and 44 non-OCCCas, LEFTY expression at both mRNA and protein levels was significantly higher in OCCCas compared with non-OCCCas, with the mRNA expression of LEFTY1 being predominant compared to that of LEFTY2...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28730785/pdcd1-strengthens-the-sensitivity-of-ovarian-cancer-to-cisplatin-chemotherapy-by-promoting-apoptosis
#18
Qian Li, Jie-Fan Gao, Bing-Li Qi
PURPOSE: The primary purpose of this study was to make clear the role of PDCD1 in the occurrence and progression of ovarian cancer, and explain its mechanism. METHODS: RT-PCR, westem blot, MTT and immunohistochemistry were used to detect the expression levels of PDCD1 mRNA and protein in human ovarian cancer cell lines (SKOV3, 3AO, CAOV3 and OVCAR3), human normal ovary, serous cystadenoma, and serous cystadenocarcinoma tissue. SKOV3, SKOV3-MOCK, and SKOV3-PDCD1 cells were subcutaneously injected into the armpit of nude mice to observe the effect of PDCD1 expression on tumorigenic ability...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28729464/mir-15a-5p-levels-correlate-with-poor-ovarian-response-in-human-follicular-fluid
#19
Kaiyue Zhang, Wanxia Zhong, Wei-Ping Li, Zijiang Chen, Cong Zhang
Poor ovarian response is a significant problem encountered during in vitro fertilization and embryo transfer procedures. Many infertile women may suffer from poor ovarian response and its incidence tends to be increasing in young patients nowadays. It is a major cause of maternal infertility because it is associated with low pregnancy and live birth rates. However, the cause of poor ovarian response is not clear. In this study, we extracted microRNAs from human follicular fluid and performed miRNA sequencing to investigate a potential posttranscriptional mechanism underlying poor ovarian response...
July 20, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28728166/whole-genome-sequencing-revealed-novel-prognostic-biomarkers-and-promising-targets-for-therapy-of-ovarian-clear-cell-carcinoma
#20
Hiroaki Itamochi, Tetsuro Oishi, Nao Oumi, Satoshi Takeuchi, Kosuke Yoshihara, Mikio Mikami, Nobuo Yaegashi, Yasuhisa Terao, Kazuhiro Takehara, Kimio Ushijima, Hidemichi Watari, Daisuke Aoki, Tadashi Kimura, Toshiaki Nakamura, Yoshihito Yokoyama, Junzo Kigawa, Toru Sugiyama
BACKGROUND: Ovarian clear cell carcinoma (OCCC) is mostly resistant to standard chemotherapy that results in poor patient survival. To understand the genetic background of these tumours, we performed whole-genome sequencing of OCCC tumours. METHODS: Tumour tissue samples and matched blood samples were obtained from 55 Japanese women diagnosed with OCCC. Whole-genome sequencing was performed using the Illumina HiSeq platform according to standard protocols. RESULTS: Alterations to the switch/sucrose non-fermentable (SWI/SNF) subunit, the phosphatidylinositol-3-kinase (PI3K)/Akt signalling pathway, and the receptor tyrosine kinase (RTK)/Ras signalling pathway were found in 51%, 42%, and 29% of OCCC tumours, respectively...
July 20, 2017: British Journal of Cancer
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