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https://www.readbyqxmd.com/read/29684847/the-association-between-p53-protein-phosphorylation-at-serine-15-serine-20-and-sensitivity-of-cells-isolated-from-patients-with-ovarian-cancer-and-cell-lines-to-chemotherapy-in-in-vitro-study
#1
Iwona Kamińska, Julia K Bar
BACKGROUND: The association between p53 protein phosphorylated at serine 15 (Ser15), serine 20 (Ser20) and ovarian tumor cell sensitivity after chemotherapy was analyzed in order to define the influence of p53 activation on tumor cell sensitivity to chemotherapy. METHODS: The study was performed on ovarian cancer cell line (OvBH-1), colon adenocarcinoma metastasis to ovary (SW626) and on cells isolated from ascitic fluids from patients with ovarian cancer: with (p53+) or without (p53-) p53 nuclear protein accumulation...
December 15, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29684820/increased-oxidative-stress-mediates-the-antitumor-effect-of-parp-inhibition-in-ovarian-cancer
#2
Dong Hou, Zhaojian Liu, Xiuhua Xu, Qiao Liu, Xiyu Zhang, Beihua Kong, Jian-Jun Wei, Yaoqin Gong, Changshun Shao
PARP inhibitors have been widely tested in clinical trials, especially for the treatment of breast cancer and ovarian cancer, and were shown to be highly successful. Because PARP primarily functions in sensing and repairing DNA strand breaks, the therapeutic effect of PARP inhibition is generally believed to be attributed to impaired DNA repair. We here report that oxidative stress is also increased by PARP inhibition and mediates the antitumor effect. We showed that PARP1 is highly expressed in specimens of high grade serous ovarian carcinoma and its activity is required for unperturbed proliferation of ovarian cancer cells...
March 30, 2018: Redox Biology
https://www.readbyqxmd.com/read/29684707/targeting-mitochondria-esters-of-rhodamine-b-with-triterpenoids-are-mitocanic-triggers-of-apoptosis
#3
Ratna Kancana Wolfram, Lucie Heller, René Csuk
Triterpenoic acids, ursolic acid (1), oleanolic acid (2), glycyrrhetinic acid (3) and betulinic acid (4) were converted into their corresponding methyl 5-8 and benzyl esters 9-12 or benzyl amides 21-24. These derivatives served as starting materials for the synthesis of pink colored rhodamine B derivatives 25-36 which were screened for cytotoxicity in colorimetric SRB assays. All of the compounds were cytotoxic for a variety of human tumor cell lines. The activity of the benzyl ester derivatives 29-32 was lower than the cytotoxicity of the methyl esters 25-28...
April 17, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29684361/high-frequency-of-ovarian-cyst-development-in-vhl-2b-snf5-mice
#4
Yasumichi Kuwahara, Leslie M Kennedy, Anthony N Karnezis, E Lorena Mora-Blanco, Arlin B Rogers, Christopher D Fletcher, David G Huntsman, Charles W M Roberts, W Kimryn Rathmell, Bernard E Weissman
The new paradigm of mutations in chromatin modifying genes as driver events in the development of cancers has proved challenging to resolve the complex influences over disease phenotypes. In particular, impaired activities of members of the SWI/SNF chromatin remodeling complex have appeared in an increasing variety of tumors. Mutations in SNF5, a member of this ubiquitously expressed complex, arise in almost all cases of malignant rhabdoid tumor in the absence of additional genetic alterations. Therefore, we studied how activation of additional oncogenic pathways might shift the phenotype of disease driven by SNF5 loss...
April 20, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29682534/the-progress-of-t-cell-immunity-related-to-prognosis-in-gastric-cancer
#5
REVIEW
Ming Wei, Duo Shen, Sachin Mulmi Shrestha, Juan Liu, Junyi Zhang, Ying Yin
Gastric cancer is the fifth most common malignancy all over the world, and the factors that can affect progress and prognosis of the gastric cancer patients are various, such as TNM stages, invasive depth, and lymph node metastasis ratio. T cell immunity is important component of human immunity system and immunity responding to tumor and dysfunction or imbalance of T cell immunity will lead to serious outcomes for body. T cell immunity includes many different types of cells, CD4+ T cell, CD8+ T cell, memory cell, and so on, and each of them has special function on antitumor response or tumor immune escape which is revealed in lung cancer, colorectal cancer, breast cancer, ovarian cancer, and so on...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29682512/targeting-notch-signalling-pathway-of-cancer-stem-cells
#6
REVIEW
Vandana Venkatesh, Raghu Nataraj, Gopenath S Thangaraj, Murugesan Karthikeyan, Ashok Gnanasekaran, Shanmukhappa B Kaginelli, Gobianand Kuppanna, Chandrashekrappa Gowdru Kallappa, Kanthesh M Basalingappa
Cancer stem cells (CSCs) have been defined as cells within tumor that possess the capacity to self-renew and to cause the heterogeneous lineages of cancer cells that comprise the tumor. CSCs have been increasingly identified in blood cancer, prostate, ovarian, lung, melanoma, pancreatic, colon, brain and many more malignancies. CSCs have slow growth rate and are resistant to chemotherapy and radiotherapy that lead to the failure of traditional current therapy. Eradicating the CSCs and recurrence, is promising aspect for the cure of cancer...
2018: Stem Cell Investigation
https://www.readbyqxmd.com/read/29682172/momelotinib-decreased-cancer-stem-cell-associated-tumor-burden-and-prolonged-disease-free-remission-period-in-a-mouse-model-of-human-ovarian-cancer
#7
Emily Chan, Rodney Luwor, Christopher Burns, George Kannourakis, Jock K Findlay, Nuzhat Ahmed
Despite a good initial response to front-line chemotherapy, majority of the ovarian cancer patients relapse with consecutive phases of recurrences; and nearly 60% die within 5 years due to the development of a chemoresistant disease. This study investigated whether inhibition of the Janus kinase 2 (JAK2)-signal transducer and activator of transcription 3 (STAT3) pathway by momelotinib is sufficient in suppressing tumor burden and prolonging the disease-free survival period in a mouse model of ovarian cancer...
March 30, 2018: Oncotarget
https://www.readbyqxmd.com/read/29682098/testing-for-nras-mutations-in-serous-borderline-ovarian-tumors-and-low-grade-serous-ovarian-carcinomas
#8
Pawel Sadlecki, Dariusz Grzanka, Marek Grabiec
The Idylla NRAS Mutation Test , performed on the Biocartis Idylla system, is an in vitro diagnostic tool for the qualitative assessment of 18 NRAS mutations in codons 12, 13, 59, 61, 117, and 146. Low-grade serous ovarian cancer (LGSC) represents less than 10% of all serous ovarian carcinomas. LGSCs are believed to arise from preexisting cystadenomas or serous borderline tumors (SBOTs) that eventually progress to an invasive carcinoma. The molecular analysis of cancer-causing mutations and the development of targeted biological therapies constitute a milestone in the diagnosis and therapy of ovarian malignancies...
2018: Disease Markers
https://www.readbyqxmd.com/read/29680739/autophagy-is-a-pro-survival-mechanism-in-ovarian-cancer-against-the-apoptotic-effects-of-euxanthone
#9
Li Zhu, Xiuping Liu, Dongmei Li, Shuhong Sun, Yue Wang, Xianghong Sun
BACKGROUND: Ovarian cancer is one of the most prevalent gynecological malignancies and thus the development of novel therapeutic agents for managing ovarian cancer is imperative. Euxanthone, a xanthone derived from Polygala caudata, has been found to exert cytotoxic effects on cancerous cells. This study was designed to assess the role of euxanthone in ovarian cancer. METHODS AND MATERIALS: Cell Counting Kit-8 (CCK-8) assay was utilized to assess the viability of human ovarian cancer SKOV3 and OVCAR3 cell lines...
April 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29680231/accuracy-of-intraoperative-frozen-section-diagnosis-of-borderline-ovarian-tumors-by-hospital-type
#10
Jaimin Shah, Michael Mackelvie, David M Gershenson, Preetha Ramalingam, Marylee M Kott, Jubilee Brown, Polly Gauthier, Elizabeth Nugent, Lois M Ramondetta, M Frumovitz
STUDY OBJECTIVE: To compare the accuracy of frozen section diagnosis of borderline ovarian tumors among three distinct types of hospital-academic hospital with gynecologic pathologists, academic hospital with non-gynecologic pathologists, and community hospital with non-gynecologic pathologists-and to determine if surgical staging alters patient care or outcomes for women with a frozen section diagnosis of borderline ovarian tumor. DESIGN: Retrospective study DESIGN CLASSIFICATION: Level II1 SETTING: Tertiary care, academic, and community hospitals PATIENTS: Women with an intraoperative frozen section diagnosis of borderline ovarian tumor at one of the aforementioned three types of hospital from April 1998 through June 2016...
April 19, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29680194/the-challenge-of-evaluating-adnexal-masses-in-patients-with-breast-cancer
#11
REVIEW
Tomás Reinert, Angélica Nogueira-Rodrigues, Fabiola Procacci Kestelman, Patricia Ashton-Prolla, Márcia Silveira Graudenz, José Bines
This narrative literature review addresses the problem of an adnexal mass discovered during the course of breast cancer (BC) care, which may represent a benign condition, a metastatic process, or a primary ovarian cancer (OC), clinical scenarios associated with distinct physiopathology and prognosis. Furthermore, the coexistence of BC and OC in the same patient may be owing to a hereditary disorder, deserving specific management strategies and counseling. The initial detection and evaluation of an adnexal mass in a patient with BC requires a high index of suspicion, and the initial workup should include a thorough medical history and physical examination, measurement of tumor markers, complete blood count, and imaging tests...
March 12, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29676374/ovarian-fibroma-with-luteinized-thecal-cells-and-minor-sex-cord-element-a-rare-case-report
#12
Anjali Mathur, Ankit Seth, Leela Pant
Ovarian fibroma with minor sex cord element (MSCE) is a rare tumor. The increased estrogen production due to the presence of MSCE and/or luteinized thecal cells within fibroma can be a risk factor for endometrial hyperplasia or carcinoma.
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29676373/ovarian-borderline-mucinous-tumor-with-squamous-overgrowth-an-unusual-finding-with-review-of-literature
#13
Geetha Vasudevan, Padmapriya Jaiprakash, Shyamala Guruvare, Nivedita Samanta
Borderline mucinous tumor (BMT) is often associated with other entities such as dermoid cyst, Brenner tumor, and endometriosis. Squamous areas are often associated which may be a part of BMT or its associated conditions. Here, we describe squamous overgrowth in a case of intestinal type of mucinous borderline tumor in a 29-year-old uniparous female and discuss the diagnostic difficulties.
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29675438/fgfrl1-promotes-ovarian-cancer-progression-by-crosstalk-with-hedgehog-signaling
#14
Haiyan Tai, Zhiyong Wu, Su'an Sun, Zhigang Zhang, Congjian Xu
Fibroblast growth factor receptor-like-1 (FGFRL1) has been identified as the fifth fibroblast growth factor receptor. So far, little is known about its biological functions, particularly in cancer development. Here, for the first time, we demonstrated the roles of FGFRL1 in ovarian carcinoma (OC). An array and existing databases were used to investigate the expression profile of FGFRL1 and the relationship between FGFRL1 expression and clinicopathological parameters. FGFRL1 was significantly upregulated in OC patients, and high FGFRL1 expression was correlated with poor prognosis...
2018: Journal of Immunology Research
https://www.readbyqxmd.com/read/29674498/microenvironmental-m1-tumor-associated-macrophage-polarization-influences-cancer-related-anemia-in-advanced-ovarian-cancer-key-role-of-interleukin-6
#15
Clelia Madeddu, Giulia Gramignano, Paraskevas Kotsonis, Ferdinando Coghe, Vinicio Atzeni, Mario Scartozzi, Antonio Macciò
No abstract text is available yet for this article.
April 19, 2018: Haematologica
https://www.readbyqxmd.com/read/29674421/anti-misrii-radiolabeled-antibodies-new-tools-for-a-theranostic-approach-in-ovarian-cancer
#16
Emmanuel Deshayes, Riad Ladjohounlou, Pierre Le Fur, Alexandre Pichard, Catherine Lozza, Vincent Boudousq, Samuel Sevestre, Marta Jarlier, Roxana Kashani, Joanna Koch, Jane Sosabowski, Julie Foster, Nicolas Chouin, Frank Bruchertseifer, Alfred Morgenstern, Pierre-Olivier Kotzki, Isabelle Navarro-Teulon, Jean-Pierre Pouget
We have developed the 16F12 mouse monoclonal antibody (mAb) that targets the MISRII receptor expressed by ovarian tumors. Here, we assessed in preclinical models the possibility to use radiolabeled 16F12 in a theranostic approach for small-volume ovarian peritoneal carcinomatosis, for instance after cytoreductive surgery. Methods: DOTA-, DTPA- or DFO-conjugated 16F12 mAb was radiolabeled with beta (177 Lu) or alpha (213 Bi) particle emitters for therapeutic use, and with 89 Zr for positron emission tomography (PET) imaging...
April 19, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29673681/a-rare-krukenberg-tumor-arising-from-a-primary-adenocarcinoma-of-the-small-intestine
#17
Angel An-Chieh Liu, Chi-Huang Chen, Wei-Min Liu, Ching-Wen Chang
OBJECTIVE: A Krukenberg tumor is a malignancy in the ovary that metastasizes from a primary site. Here, we report a very rare case of bilateral Krukenberg tumors of the ovaries arising from a primary adenocarcinoma of the small intestine in a 53-year-old Taiwanese woman. CASE REPORT: The patient presented with a 3-month history of abdominal distension and acid regurgitation. Gastroscopy and colonoscopy findings were negative. According to the preoperative image, we highly suspected that the small bowel mass was the primary tumor with metastatic tumors to bilateral ovarian masses...
April 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29673667/the-role-of-preoperative-serum-cancer-antigen-125-in-malignant-ovarian-germ-cell-tumors
#18
Ju-Hyun Kim, Jeong-Yeol Park, Jong-Hyeok Kim, Yong-Man Kim, Young-Tak Kim, Joo-Hyun Nam
OBJECTIVE: To determine the role of preoperative serum cancer antigen 125 (CA 125) in malignant ovarian germ cell tumors (MOGCTs). MATERIALS AND METHODS: Using information from medical databases of Asan Medical Center (Seoul, Korea), we investigated 161 patients with histologically diagnosed MOGCTs and whose preoperative serum CA 125 had been checked. We determined the optimal cutoff value of CA 125 as > 249.5 U/mL in MOGCTs using a receiver operating characteristic curve...
April 2018: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29673382/risk-of-synchronous-endometrial-disorders-in-women-with-endometrioid-borderline-tumors-of-the-ovary
#19
Shuang-Zheng Jia, Jun-Ji Zhang, Jun-Jun Yang, Yang Xiang, Zhiyong Liang, Jin-Hua Leng
BACKGROUND: Synchronous endometrial disorders have been poorly studied in women with endometrioid borderline ovarian tumors (EBOT). The aims of this study were to investigate the risk of endometrial disorders among women with EBOT and associated factors, as well as their oncological and fertility outcomes. RESULTS: This retrospective study included 33 women with EBOT. Their mean age was 41.9 years, and endometria were evaluated in 25 of these patients. The prevalence of synchronous endometrial disorders was 52...
April 19, 2018: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29673336/ab0-blood-groups-and-rhesus-factor-expression-as-prognostic-parameters-in-patients-with-epithelial-ovarian-cancer-a-retrospective-multi-centre-study
#20
Veronika Seebacher, Stephan Polterauer, Alexander Reinthaller, Heinz Koelbl, Regina Achleitner, Astrid Berger, Nicole Concin
BACKGROUND: AB0 blood groups and Rhesus factor expression have been associated with carcinogenesis, response to treatment and tumor progression in several malignancies. The aim of the present study was to test the hypothesis that AB0 blood groups and Rhesus factor expression are associated with clinical outcome in patients with epithelial ovarian cancer (EOC). METHODS: AB0 blood groups and Rhesus factor expression were evaluated in a retrospective multicenter study including 518 patients with EOC...
April 19, 2018: BMC Cancer
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