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https://www.readbyqxmd.com/read/29335784/clinical-significance-of-mirna-21-103-129-150-in-serous-ovarian-cancer
#1
Miłosz Wilczyński, Ewelina Żytko, Justyna Danielska, Bożena Szymańska, Monika Dzieniecka, Marek Nowak, Jakub Malinowski, Dariusz Owczarek, Jacek R Wilczyński
PURPOSE: We aimed to compare expression levels of miRNA-21, -103, -129, -150 in primary tumour tissues and its omental metastases from patients operated for advanced ovarian serous cancer. Expression levels of selected miRNAs were correlated with clinicopathological features, including chemosensitivity and survival. METHODS: We performed total RNA extraction from archival formalin-fixed paraffin-embedded tissue samples of primary serous ovarian cancer and omental metastases...
January 16, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29331749/paediatric-dysgerminoma-results-of-three-consecutive-french-germ-cell-tumours-clinical-studies-tgm-85-90-95-with-late-effects-study
#2
Gwénaëlle Duhil de Bénazé, Hélène Pacquement, Cécile Faure-Conter, Catherine Patte, Daniel Orbach, Nadège Corradini, Claire Berger, Hélène Sudour-Bonnange, Cécile Vérité, Hélène Martelli, Brice Fresneau
METHODS: French patients (≤18years) treated for dysgerminoma between 1985 and 2005 in TGM-85, 90, 95 protocols were included. Treatment was based on primary unilateral oophorectomy followed by prophylactic lymph node irradiation (1985-1998) or a wait-and-see strategy (1998-2005) for localised completely resected tumours (pS1) or by platinum-based chemotherapy for advanced diseases. RESULTS: Forty-eight patients (median age 12.8 years) were included. Six patients had gonadal dysgenesis...
January 10, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29299659/ex-vivo-expanded-nk-cells-from-blood-and-ascites-of-ovarian-cancer-patients-are-cytotoxic-against-autologous-primary-ovarian-cancer-cells
#3
Tina Nham, Sophie M Poznanski, Isabella Y Fan, Mira M Shenouda, Marianne V Chew, Amanda J Lee, Fatemeh Vahedi, Yalda Karimi, Martin Butcher, Dean A Lee, Hal Hirte, Ali A Ashkar
Ovarian cancer (OC) is the leading cause of gynecological cancer-related death in North America. Most ovarian cancer patients (OCPs) experience disease recurrence after first-line surgery and chemotherapy; thus, there is a need for novel second-line treatments to improve the prognosis of OC. Although peripheral blood-derived NK cells are known for their ability to spontaneously lyse tumour cells without prior sensitization, ascites-derived NK cells (ascites-NK cells) isolated from OCPs exhibit inhibitory phenotypes, impaired cytotoxicity and may play a pro-tumourigenic role in cancer progression...
January 3, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29298688/enhanced-response-rate-to-pegylated-liposomal-doxorubicin-in-high-grade-serous-ovarian-carcinomas-harbouring-brca1-and-brca2-aberrations
#4
Robert L Hollis, Alison M Meynert, Michael Churchman, Tzyvia Rye, Melanie Mackean, Fiona Nussey, Mark J Arends, Andrew H Sims, Colin A Semple, C Simon Herrington, Charlie Gourley
BACKGROUND: Approximately 10-15% of ovarian carcinomas (OC) are attributed to inherited susceptibility, the majority of which are due to mutations in BRCA1 or BRCA2 (BRCA1/2). These patients display superior clinical outcome, including enhanced sensitivity to platinum-based chemotherapy. Here, we seek to investigate whether BRCA1/2 status influences the response rate to single-agent pegylated liposomal doxorubicin (PLD) in high grade serous (HGS) OC. METHODS: One hundred and forty-eight patients treated with single-agent PLD were identified retrospectively from the Edinburgh Ovarian Cancer Database...
January 3, 2018: BMC Cancer
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
#5
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/29290327/-the-value-of-immunohistochemistry-using-smarca4-brg1-in-the-diagnosis-of-small-cell-ovarian-carcinoma-hypercalcemic-type-a-report-of-two-cases
#6
Gema Ruiz-García, M Amparo Torroba-Carón, Belén Ferri-Ñíguez, Miriam Lencina-Guardiola, Francisco García-Molina, Enrique Martínez-Barba
Small cell carcinoma of ovary-hypercalcemic type is an undifferentiated carcinoma. We describe two cases in women aged 32 and 29. Both presented with large masses and complete surgical extirpation was impossible. Histologically, the images were similar, with diffuse cell proliferation, accompanied by the presence of follicle-like spaces. In both cases it was necessary to make a differential diagnosis with entities such as adult or juvenile granulosa cell tumour, small cell carcinoma of pulmonary type, dysgerminoma and even peripheral neuroectodermal tumour...
January 2018: Revista Española de Patología
https://www.readbyqxmd.com/read/29289348/prognostic-indicators-in-ovarian-serous-borderline-tumours
#7
REVIEW
Anais Malpica, Teri A Longacre
There have been great strides in our understanding of the serous group of borderline and malignant pelvic epithelial neoplasms in the past decade. While most serous borderline tumours have a favourable prognosis, recurrences and progression to carcinoma occur, often following a protracted clinical course. Clinical and pathological risk factors tend to co-vary, but the presence and type of extraovarian disease is the most important predictor for progression. Progression usually takes the form of low-grade serous carcinoma, although transformation to high-grade carcinoma is occasionally seen...
December 28, 2017: Pathology
https://www.readbyqxmd.com/read/29287922/gynaecological-neoplasms-in-common-familial-syndromes-lynch-and-hboc
#8
REVIEW
Carla Bartosch, Blaise Clarke, Tjalling Bosse
Recognising hereditary predisposition in a cancer patient has implications both for the patient and the patient's kindred. For the latter, cascade germline testing can reassure those not-at-risk family members while carriers can be enrolled in cancer screening and prevention programs that are medically effective and economically sustainable for health care systems. Furthermore, in many of these syndromes, ramifications of molecular phenotypes are increasing, and it is now emerging that, in addition, they convey prognostic and predictive information...
December 26, 2017: Pathology
https://www.readbyqxmd.com/read/29285388/metronomic-cyclophosphamide-induced-long-term-remission-after-recurrent-high-grade-serous-ovarian-cancer-a-case-study
#9
Leonora Wijnandina de Boo, Annelie Johanna Elisabeth Vulink, Monique Elisabeth Martina Maria Bos
Metronomic oral cyclophosphamide has gained increasing interest in recent years as a promising maintenance therapy in advanced, platinum-sensitive, high-grade serous ovarian cancer (HGSOC). Metronomic treatment with cyclophosphamide refers to the frequent, usually daily, administration of a low (oral) dose of cyclophosphamide with no prolonged drug-free breaks. Main advantages of this treatment are the effective reduction of tumour activity, oral administration in an outpatient setting, low cost and the low toxicity profile...
December 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29285208/rab-coupling-protein-mediated-endosomal-recycling-of-n-cadherin-influences-cell-motility
#10
Andrew J Lindsay, Mary W McCaffrey
Rab coupling protein (RCP) is a Rab GTPase effector that functions in endosomal recycling. The RCP gene is frequently amplified in breast cancer, leading to increased cancer aggressiveness. Furthermore, RCP enhances the motility of ovarian cancer cells by coordinating the recycling of α5β1 integrin and EGF receptor to the leading edge of migrating cells. Here we report that RCP also influences the motility of lung adenocarcinoma cells. Knockdown of RCP inhibits the motility of A549 cells in 2D and 3D migration assays, while its overexpression enhances migration in these assays...
December 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/29279355/gadd45%C3%AE-loss-ablates-innate-immunosuppression-in-cancer
#11
Daniela Verzella, Jason Bennett, Mariafausta Fischietti, Anil Kumar Thotakura, Camilla Recordati, Fabio Pasqualini, Daria Capece, Davide Vecchiotti, Daniel D'Andrea, Barbara Di Francesco, Marcella De Maglie, Federica Begalli, Laura Tornatore, Salvatore Papa, Toby Lawrence, Stuart Forbes, Antonio Sica, Edoardo Alesse, Francesca Zazzeroni, Guido Franzoso
T cell exclusion from the tumour microenvironment (TME) is a major barrier to overcoming immune escape. Here we identify a myeloid-intrinsic mechanism governed by the NF-κB effector molecule GADD45β that restricts tumour-associated inflammation and T cell trafficking into tumors. In various models of solid cancers refractory to immunotherapies, including hepatocellular carcinoma (HCC) and ovarian adenocarcinoma, Gadd45b inhibition in myeloid cells restored activation of pro-inflammatory tumour-associated macrophages (TAM) and intratumoural immune infiltration, thereby diminishing oncogenesis...
December 26, 2017: Cancer Research
https://www.readbyqxmd.com/read/29275930/ovarian-sex-cord-stromal-tumours-an-update-in-recent-molecular-advances
#12
REVIEW
Diana Lim, Esther Oliva
Sex cord-stromal tumours (SCSTs) consist of a heterogeneous group of neoplasms with diverse clinicopathological features and biological behaviour. They often present as a diagnostic challenge as they have varied and occasionally overlapping histomorphology and some may even mimic non-SCSTs. An accurate diagnosis is important for therapeutic and prognostic purposes. The use of a panel of immunohistochemical markers which are sensitive and specific for sex cord-stromal differentiation such as α-inhibin, calretinin, SF-1 and FOXL2, may be helpful in confirming the cellular lineage of these tumours, but is of limited utility in distinguishing between the different tumour types within this category...
December 21, 2017: Pathology
https://www.readbyqxmd.com/read/29260365/prognostic-importance-of-peritoneal-lesion-to-primary-tumour-standardized-uptake-value-ratio-in-advanced-serous-epithelial-ovarian-cancer
#13
Hyun Hoon Chung, Jae-Weon Kim, Noh-Hyun Park, Yong Sang Song, Gi Jeong Cheon
OBJECTIVES: Using preoperative PET/CT, we evaluated the prognostic value of preoperative [18F]FDG uptake ratio between various metastatic lesions and primary tumour in patients with advanced serous epithelial ovarian cancer (EOC). METHODS: We retrospectively reviewed patients with International Federation of Gynecology and Obstetrics (FIGO) stage III, IV serous EOC who underwent preoperative [18F]FDG PET/CT scans. Clinico-pathological variables and PET/CT parameters such as maximum standardized uptake value of the ovarian cancer (SUVovary), pelvic or para-aortic LN (SUVLN), peritoneal (SUVperit) and distant extra-peritoneal (SUVdist) metastatic lesions, and the metastatic lesion-to-ovarian cancer standardized uptake value ratio were assessed...
December 19, 2017: European Radiology
https://www.readbyqxmd.com/read/29259228/metabolomics-reveals-novel-blood-plasma-biomarkers-associated-to-the-brca1-mutated-phenotype-of-human-breast-cancer
#14
Bàrbara Roig, Marta Rodríguez-Balada, Sara Samino, Eric W-F Lam, Sandra Guaita-Esteruelas, Ana R Gomes, Xavier Correig, Joan Borràs, Oscar Yanes, Josep Gumà
Hereditary breast and ovarian cancer syndrome (HBOC) is partly due to the presence of mutations in the BRCA genes. Triple-negative (TN) breast cancer (BC) shares histological characteristics with germline BRCA1 mutation-associated tumours. We have investigated the metabolic profiles of human breast cancer (BC) cell lines carrying BRCA1 pathogenic mutations by non-targeted liquid chromatography coupled to mass spectrometry technology. Based on our in vitro results, we performed a targeted metabolomic analysis of plasma samples from TN HBOC patients taking into account their BRCA1 genotype...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29258579/giant-ovarian-cyst-masquerading-as-a-massive-ascites-a-case-report
#15
Eugene Vernyuy Yeika, Derrick Tembi Efie, Paul Nkemtendong Tolefac, Joseph Nkeangu Fomengia
BACKGROUND: Giant ovarian cysts are tumours of the ovary presenting with diameters greater than 10 cm. Giant ovarian cysts have become rare in recent days as they are diagnosed and managed early due to the availability of good imaging modalities. The aim of this case report is to show how a huge cystic ovarian mass can mislead the diagnosis of ascites in a postmenopausal woman. Factors associated with late presentation of giant ovarian cysts in sub-Saharan Africa have also been discussed...
December 19, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29249564/synchronous-tumours-of-the-female-reproductive-tract
#16
REVIEW
C Blake Gilks, Friedrich Kommoss
Many ovarian endometrioid carcinomas present with concurrent endometrial carcinoma, and these organ-confined, low-grade synchronous endometrial and ovarian tumours consistently behave as independent primary tumours, rather than a single advanced-stage carcinoma; they are associated with a very favourable prognosis and there is no need for adjuvant treatment. This phenomenon of synchronous tumours involving two or more sites within the female reproductive tract is well recognised, occurring in 1-2% of cases...
December 14, 2017: Pathology
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/29238081/pyridoxine-5-phosphate-oxidase-is-a-novel-therapeutic-target-and-regulated-by-the-tgf-%C3%AE-signalling-pathway-in-epithelial-ovarian-cancer
#18
Lingyun Zhang, Daibing Zhou, Wencai Guan, Weimin Ren, Wenwen Sun, Jimin Shi, Qunbo Lin, Jinguo Zhang, Tiankui Qiao, Yulong Ye, Yun Wu, Yaning Zhang, Xulei Zuo, Kristin L Connor, Guoxiong Xu
Pyridoxine 5'-phosphate oxidase (PNPO) is an enzyme that converts pyridoxine 5'-phosphate into pyridoxal 5'-phosphate (PLP), an active form of vitamin B6 implicated in several types of cancer. However, the role of PNPO and its regulatory mechanism in epithelial ovarian cancer (EOC) are unknown. In the present study, PNPO expression in human ovarian tumour tissue and its association with the clinicopathological features of patients with EOC were examined. Further, the biological function of PNPO in EOC cells and in xenograft was evaluated...
December 13, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29233846/ve-cadherin-mediated-epigenetic-regulation-of-endothelial-gene-expression
#19
Marco F Morini, Costanza Giampietro, Monica Corada, Federica Pisati, Elisa Lavarone, Sara I Cunha, Lei L Conze, Nicola J O'Reilly, Dhira Joshi, Svend Kjaer, Roger George, Emma Nye, Anqi Ma, Jian Jin, Richard Mitter, Michela Lupia, Ugo Cavallaro, Diego Pasini, Dinis P Calado, Elisabetta Dejana, Andrea Taddei
Rationale: The mechanistic foundation of vascular maturation is still largely unknown. Several human pathologies are characterized by deregulated angiogenesis and unstable blood vessels. Solid tumours, for instance, get their nourishment from newly formed structurally abnormal vessels which present wide and irregular inter-endothelial junctions. Expression and clustering of the main endothelial-specific adherens junction protein, vascular endothelial (VE)-cadherin (VEC), upregulate genes with key roles in endothelial differentiation and stability...
December 12, 2017: Circulation Research
https://www.readbyqxmd.com/read/29229394/mir-628-5p-decreases-the-tumorigenicity-of-epithelial-ovarian-cancer-cells-by-targeting-at-fgfr2
#20
Ming Li, Zhimin Qian, Xiaoling Ma, Xiaolong Lin, Yanan You, Yiying Li, Tong Chen, Hua Jiang
Micro RNAs (miRNAs) are small non-coding RNAs which are 19-24 nucleotides in length. MiRNAs play a vital role in the whole process of tumour development, but how they influence the tumourigenecity of epithelial ovarian cancer (EOC)cells is rarely researched. In our study, it was verified that miR-628-5p decreased the stem like cell percentage of EOC cells by inducing their apoptosis. The animal experiments showed that miR-628-5p decreased the tumourigenecity of EOC cells. Besides, we found miR-628-5p targeted at and down-regulated the expression of fibroblast growth factor receptor 2 (FGFR2)...
December 8, 2017: Biochemical and Biophysical Research Communications
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