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https://www.readbyqxmd.com/read/28643177/targeting-dna-repair-and-replication-stress-in-the-treatment-of-ovarian-cancer
#1
REVIEW
Junko Murai
Approximately half of high-grade serous epithelial ovarian cancers incur alterations in genes of homologous recombination (BRCA1, BRCA2, RAD51C, Fanconi anemia genes), and the rest incur alterations in other DNA repair pathways at high frequencies. Such cancer-specific gene alterations can confer selective sensitivity to DNA damaging agents such as cisplatin and carboplatin, topotecan, etoposide, doxorubicin, and gemcitabine. Originally presumed to inhibit DNA repair, PARP inhibitors that have recently been approved by the FDA for the treatment of advanced ovarian cancer also act as DNA damaging agents by inducing PARP-DNA complexes...
June 22, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28640176/ultrasound-guided-percutaneous-radiofrequency-ablation-of-liver-metastasis-from-ovarian-cancer-a-single-center-initial-experience
#2
Baoxian Liu, Guangliang Huang, Chunlin Jiang, Ming Xu, Bowen Zhuang, Manxia Lin, Wenshuo Tian, Xiaohua Xie, Ming Kuang, Xiaoyan Xie
OBJECTIVE: The aim of this study was to evaluate the feasibility, effectiveness, and safety of ultrasound-guided percutaneous radiofrequency ablation (RFA) for the treatment of liver metastasis from ovarian cancer (OC). METHODS: A retrospective review was performed on 11 patients (mean age, 53.0 ± 10.1 years) with 22 liver metastases (mean diameter, 2.0 ± 0.8 cm) from OC undergone RFA. Radiofrequency ablation was carried out with Starburst XL electrodes (RITA Medical System, Mountain View, CA) or Cool-tip electrodes (Cool-tip Systems; Valleylab, Boulder, CO)...
July 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28639753/screening-for-ovarian-cancer-imaging-challenges-and-opportunities-for-improvement
#3
EDITORIAL
Kelsey B Mathieu, Deepak G Bedi, Sara L Thrower, Aliya Qayyum, Robert C Bast
The United Kingdom Collaborative Trial of Ovarian Cancer Screening (UKCTOCS) recently reported a reduction in the average overall mortality among ovarian cancer patients screened with an annual sequential, multimodal strategy that tracked biomarker CA125 over time, where increasing serum CA125 levels prompted ultrasound. However, multiple cases were documented wherein serum CA125 levels were rising, but ultrasound screens were normal, thus delaying surgical intervention. A significant factor which could contribute to false negatives is that many aggressive ovarian cancers are believed to arise from epithelial cells on the fimbriae of the fallopian tubes, which are not readily imaged...
June 22, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28639280/mutational-profiles-of-brenner-tumors-show-distinctive-features-uncoupling-urothelial-carcinomas-and-ovarian-carcinoma-with-transitional-cell-histology
#4
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/28638271/proex-c-as-diagnostic-marker-for-detection-of-urothelial-carcinoma-in-urinary-samples-a-review
#5
REVIEW
Gerardo Botti, Maria Gabriella Malzone, Elvira La Mantia, Micaela Montanari, Daniela Vanacore, Sabrina Rossetti, Vincenzo Quagliariello, Carla Cavaliere, Rossella Di Franco, Luigi Castaldo, Gianluca Ametrano, Francesca Cappuccio, Francesco Jacopo Romano, Raffaele Piscitelli, Maria Filomena Pepe, Carmine D'Aniello, Gaetano Facchini
The gold standard for the detection of urothelial carcinoma is represented by urethro-cystoscopy and biopsy. Both procedures are invasive and expensive and therefore cytology is often used as first approach to investigate on a possible neoplasia, being a safe and cost-effective diagnostic modality of evaluation. Because cytology alone is not highly sensitive for detection of low grade urothelial carcinoma and recurrence of the disease, several adjunct markers and urine based tests for urothelial carcinoma have been developed, which can help in the final diagnosis...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28637487/the-nf1-somatic-mutational-landscape-in-sporadic-human-cancers
#6
REVIEW
Charlotte Philpott, Hannah Tovell, Ian M Frayling, David N Cooper, Meena Upadhyaya
BACKGROUND: Neurofibromatosis type 1 (NF1: Online Mendelian Inheritance in Man (OMIM) #162200) is an autosomal dominantly inherited tumour predisposition syndrome. Heritable constitutional mutations in the NF1 gene result in dysregulation of the RAS/MAPK pathway and are causative of NF1. The major known function of the NF1 gene product neurofibromin is to downregulate RAS. NF1 exhibits variable clinical expression and is characterized by benign cutaneous lesions including neurofibromas and café-au-lait macules, as well as a predisposition to various types of malignancy, such as breast cancer and leukaemia...
June 21, 2017: Human Genomics
https://www.readbyqxmd.com/read/28631711/-expansion-of-secretory-cells-in-the-fallopian-tubal-epithelium-in-the-early-stages-of-the-pathogenesis-of-ovarian-serous-carcinomas
#7
A V Asaturova, L S Ezhova, N M Faizullina, L V Adamyan, G N Khabas, M V Sannikova
AIM: to investigate the frequency of the types of fallopian tubal secretory cell expansion (SCE) in diseases of the reproductive organs and to determine the immunophenotype and biological role of the cells in the early stages of the pathogenesis of high-grade ovarian serous carcinomas (HGOSC). SUBJECTS AND METHODS: The investigation enrolled 287 patients with extraovarian diseases and ovarian serous tumors varying in grade, whose fallopian tubes were morphologically and immunohistochemically examined using p53, Ki-67, PAX2, Bcl-2, beta-catenin, and ALDH1 markers...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28629557/multiparametric-mri-for-differentiation-of-borderline-ovarian-tumors-from-stage-i-malignant-epithelial-ovarian-tumors-using-multivariate-logistic-regression-analysis
#8
Fatmaelzahraa Abdelfattah Denewar, Mitsuru Takeuchi, Misugi Urano, Yuki Kamishima, Tatsuya Kawai, Naoki Takahashi, Moe Takeuchi, Susumu Kobayashi, Junichi Honda, Yuta Shibamoto
OBJECTIVE: To assess the value of contrast-enhanced MRI, apparent diffusion coefficient (ADC) measurement, and CA-125 measurement for differentiating borderline ovarian tumors (BOTs) from stage I malignant epithelial ovarian tumors (MEOTs). MATERIAL AND METHODS: This retrospective study included 43 patients with BOTs and 43 patients with stage I MEOTs who underwent contrast-enhanced MRI with DWI and CA-125 analysis. Two radiologists evaluated the MRI findings in consensus...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28628116/cadherin-composition-and-multicellular-aggregate-invasion-in-organotypic-models-of-epithelial-ovarian-cancer-intraperitoneal-metastasis
#9
Y Klymenko, O Kim, E Loughran, J Yang, R Lombard, M Alber, M S Stack
During epithelial ovarian cancer (EOC) progression, intraperitoneally disseminating tumor cells and multicellular aggregates (MCAs) present in ascites fluid adhere to the peritoneum and induce retraction of the peritoneal mesothelial monolayer prior to invasion of the collagen-rich submesothelial matrix and proliferation into macro-metastases. Clinical studies have shown heterogeneity among EOC metastatic units with respect to cadherin expression profiles and invasive behavior; however, the impact of distinct cadherin profiles on peritoneal anchoring of metastatic lesions remains poorly understood...
June 19, 2017: Oncogene
https://www.readbyqxmd.com/read/28625315/cancer-de-l%C3%A2-ovaire-prise-en-charge-pluridisciplinaire-du-cancer-de-l%C3%A2-ovaire-en-premi%C3%A3-re-ligne-recommandations-saint-paul-de-vence-2016
#10
Jean-Marc Classe, Frédéric Guyon, Claire Falandry, Mojgan Devouassoux-Shisheboran, Frédéric Selle, Florence Joly
Recommendations for the clinical practice of Nice-Saint-Paul de Vence The treatment of advanced epithelial ovarian cancer is multidisciplinary involving surgical teams and surgery and medical oncology, experienced in the management of this disease, following published quality criteria. The strategy must be validated in multidisciplinary consultation meeting (RCP) before any treatment. The pre-therapeutic assessment includes the histological diagnosis, evaluation of the tumor extension (biological assessment, markers, imaging, laparoscopy), assessment of the general state (operability), in order to answer the question of feasibility of an initial optimal surgery...
May 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28623900/characterization-of-microrna-200-pathway-in-ovarian-cancer-and-serous-intraepithelial-carcinoma-of-fallopian-tube
#11
Junzheng Yang, Yilan Zhou, Shu-Kay Ng, Kuan-Chun Huang, Xiaoyan Ni, Pui-Wah Choi, Kathleen Hasselblatt, Michael G Muto, William R Welch, Ross S Berkowitz, Shu-Wing Ng
BACKGROUND: Ovarian cancer is the leading cause of death among gynecologic diseases in Western countries. We have previously identified a miR-200-E-cadherin axis that plays an important role in ovarian inclusion cyst formation and tumor invasion. The purpose of this study was to determine if the miR-200 pathway is involved in the early stages of ovarian cancer pathogenesis by studying the expression levels of the pathway components in a panel of clinical ovarian tissues, and fallopian tube tissues harboring serous tubal intraepithelial carcinomas (STICs), a suggested precursor lesion for high-grade serous tumors...
June 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28615984/papillary-thyroid-microcarcinoma-arising-within-a-mature-ovarian-teratoma-case-report-and-review-of-the-literature
#12
Maria M Pineyro, Jimena Pereda, Pamela Schou, Karina de Los Santos, Soledad de la Peña, Benedicta Caserta, Raul Pisabarro
Mature cystic teratoma is the most common kind of ovarian germ cell tumor. Malignant transformation is uncommon, with thyroid cancer rarely found. Papillary thyroid microcarcinoma has rarely been described as associated with ovarian teratomas. We report a case of a 34-year-old woman who presented with abdominal pain and an ovarian mass. After surgery, the patient was diagnosed with a follicular variant papillary thyroid microcarcinoma that arose within a mature cystic ovarian teratoma. Based on the small size of the primary lesion and patient preferences, no further treatment was performed...
2017: Clinical Medicine Insights. Endocrinology and Diabetes
https://www.readbyqxmd.com/read/28610407/lack-of-hpv-in-benign-and-malignant-epithelial-ovarian-tumors-in-iran
#13
Farah Farzaneh, Seyed Alireza Nadji, Donya Khosravi, Maryam Sadat Hosseini, Mohammad Hashemi Bahremani, Mohammad Chehrazi, Ghazal Bagheri, Afsaneh Sigaroodi, Zahra Haghighatian
Background: Ovarian epithelial tumors one of the most common gynecological neoplasms; we here evaluated the presence of HPV in benign and malignant examples. Methods: In this cross-sectional study the records of 105 patients with epithelial ovarian tumors (benign and malignant) referred to Imam Hossein University Hospital from 2012 to 2015 were evaluated along with assessment of the presence of the HPV infection using PCR. Results: Among 105 patients, comprising 26 (24.8%) with malignant and 79 (75.2%) with benign lesions, the factors found to impact on malignancy were age at diagnosis, age at first pregnancy, number of pregnancies and hormonal status...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28609837/familial-pancreatic-cancer-and-the-future-of-directed-screening
#14
REVIEW
Sara Welinsky, Aimee L Lucas
Pancreatic cancer (PC) is the third most common cause of cancer-related death in the United States and the 12th most common worldwide. Mortality is high, largely due to late stage of presentation and suboptimal treatment regimens. Approximately 10% of PC cases have a familial basis. The major genetic defect has yet to be identified but may be inherited by an autosomal dominant pattern with reduced penetrance. Several known hereditary syndromes or genes are associated with an increased risk of developing PC and account for approximately 2% of PCs...
June 15, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28609712/two-week-waits-what-are-we-waiting-for
#15
Ahmed R Abdelraheim, Mohammed Khairy, Mo'men Mohammed, Alexandra Lawrence
OBJECTIVES: To evaluate the two-week referral system by analysing the 2-week wait (2WW) referrals to the rapid access gynaecology clinic over one year. We have also sought to identify the risk factors for endometrial cancer to help setting criteria that can be used to prioritise urgent appointments, refine subsequent management strategies. STUDY DESIGN: Retrospective review of the data of all women referred for suspected gynaecological cancers over one year via the 2 WW office at Queen's Hospital, Romford, UK...
June 10, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28603028/targeting-of-p32-in-peritoneal-carcinomatosis-with-intraperitoneal-lintt1-peptide-guided-pro-apoptotic-nanoparticles
#16
Hedi Hunt, Lorena Simón-Gracia, Allan Tobi, Venkata Ramana Kotamraju, Shweta Sharma, Mait Nigul, Kazuki N Sugahara, Erkki Ruoslahti, Tambet Teesalu
Gastrointestinal and gynecological malignancies disseminate in the peritoneal cavity - a condition known as peritoneal carcinomatosis (PC). Intraperitoneal (IP) administration can be used to improve therapeutic index of anticancer drugs used for PC treatment. Activity of IP anticancer drugs can be further potentiated by encapsulation in nanocarriers and/or affinity targeting with tumor-specific affinity ligands, such as tumor homing peptides. Here we evaluated a novel tumor penetrating peptide, linTT1 (AKRGARSTA), as a PC targeting ligand for nanoparticles...
June 8, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28601643/heterogeneous-cadherin-expression-and-multicellular-aggregate-dynamics-in-ovarian-cancer-dissemination
#17
Yuliya Klymenko, Jeffrey Johnson, Brandi Bos, Rachel Lombard, Leigh Campbell, Elizabeth Loughran, M Sharon Stack
Epithelial ovarian carcinoma spreads via shedding of cells and multicellular aggregates (MCAs) from the primary tumor into peritoneal cavity, with subsequent intraperitoneal tumor cell:mesothelial cell adhesion as a key early event in metastatic seeding. Evaluation of human tumor extracts and tissues confirms that well-differentiated ovarian tumors express abundant E-cadherin (Ecad), whereas advanced lesions exhibit upregulated N-cadherin (Ncad). Two expression patterns are observed: "mixed cadherin," in which distinct cells within the same tumor express either E- or Ncad, and "hybrid cadherin," wherein single tumor cell(s) simultaneously expresses both cadherins...
June 8, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28597474/zeb1-expression-is-a-potential-indicator-of-invasive-endometriosis
#18
Masataka Furuya, Hirotaka Masuda, Kanako Hara, Hiroshi Uchida, Kenji Sato, Suguru Sato, Hironori Asada, Tetsuo Maruyama, Yasunori Yoshimura, Hidetaka Katabuchi, Mamoru Tanaka, Hideyuki Saya
INTRODUCTION: Although endometriosis is a benign disease, it shares some features with cancers, such as invasiveness and the potential to metastasize. This study sought to investigate the epithelial-mesenchymal transition (EMT) status in human endometriotic lesions. MATERIAL AND METHODS: Thirteen endometriosis patients and ten control women without endometriosis undergoing surgery for benign indications were recruited. We examined the expression of E-cadherin, vimentin, and EMT-induced transcriptional factors, such as Snail and ZEB1, by immunohistochemistry...
June 8, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28596011/emmenagogue-properties-of-milicia-excelsa-welw-c-c-berg-moraceae-based-at-least-in-part-on-its-ability-to-correlate-the-activity-of-the-hypothalamic-pituitary-axis-to-that-of-the-ovaries
#19
Marie Alfrede Mvondo, Aude Jaelle Touomo Sakock, Sylvin Benjamin Ateba, Charline Florence Awounfack, Telesphore Nanbo Gueyo, Dieudonné Njamen
ETHNOPHARMACOLOGICAL RELEVANCE: Milicia excelsa (Welw.) C.C. Berg (Moraceae) is a medicinal plant recommended over tropical Africa as a cure for several ailments including amenorrhea. This is the hallmark of an ovarian lesion or a dysfunction of the hypothalamic-pituitary-ovarian axis which may lead to infertility, osteoporosis or endometrial cancer. However, regardless these traditional claims, no scientific report dealing with emmenagogue properties has been reported yet. AIM OF THE STUDY: To bring scientific evidence to the curative action of the plant, we proposed evaluating the effects of a root aqueous extract of Milicia excelsa on female Wistar rat sexual maturation...
June 6, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28593431/prognostic-implication-of-the-metastatic-lesion-to-ovarian-cancer-standardised-uptake-value-ratio-in-advanced-serous-epithelial-ovarian-cancer
#20
Hyun Hoon Chung, Maria Lee, Hee-Seung Kim, Jae-Weon Kim, Noh-Hyun Park, Yong Sang Song, Gi Jeong Cheon
OBJECTIVES: To evaluate the prognostic value of metabolic activity of metastatic lesions measured by (18)F-flurodeoxyglucose ((18)F-FDG) uptake on preoperative positron emission tomography/computed tomography (PET/CT) in patients with advanced serous epithelial ovarian cancer (EOC). METHODS: Clinico-pathological variables and PET/CT parameters such as the maximum standardised uptake value of the ovarian cancer (SUVovary), metastatic lesions (SUVmeta), and the metastatic lesion-to-ovarian cancer standardised uptake value ratio (SUVmeta/SUVovary) were assessed in International Federation of Gynaecology and Obstetrics (FIGO) stage III, IV patients...
June 7, 2017: European Radiology
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