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Ovarian carcinoma

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https://www.readbyqxmd.com/read/28934730/dihydroartemisinin-and-curcumin-synergistically-induce-apoptosis-in-skov3-cells-via-upregulation-of-mir-124-targeting-midkine
#1
Jiaojiao Zhao, Yuchen Pan, Xiujun Li, Xuefang Zhang, Yaxian Xue, Tingting Wang, Shuli Zhao, Yayi Hou
BACKGROUND/AIM: Women with advanced ovarian carcinoma are less likely to receive platinum-based chemotherapy and surgery due to a greater risk of cytotoxicity and poorer outcomes. We attempted to improve a promising therapy against ovarian cancer by using a combination of dihydroartemisinin (DHA) and curcumin (Cur). METHODS: Human ovarian cancer SKOV3 cells were treated with DHA, Cur alone, or a combination of both. The viability of SKOV3 cells was measured by Cell Counting Kit-8 (CCK-8) and a colony formation assay...
September 21, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28933561/ckap2-promotes-ovarian-cancer-proliferation-and-tumorigenesis-through-the-fak-erk-pathway
#2
Mei Zhang, Longjun Zhao
Upregulation of cytoskeleton-associated protein 2 (CKAP2) has been observed in ovarian cancer. This study aimed to determine the effects of overexpression of CKAP2 on cell proliferation and tumorigenesis and to explore the potential signal pathway in the oncogenic process. Expression of CKAP2 in tissue of ovarian cancer patients was detected. Human cancer cell line SKOV3 was overexpressed with CKAP2 and measured for cell growth and mobility. Moreover, CKAP2 effect was estimated using mouse tumor xenografts...
September 21, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28932808/two-sisters-with-mayer-rokitansky-k%C3%A3-ster-hauser-syndrome-and-serous-adenocarcinoma-of-the-ovary
#3
Sarah P Huepenbecker, Laura Divine, Christina S Chu, David G Mutch
BACKGROUND: Mayer-Rokitansky-Küster-Hauser syndrome is a rare entity with proposed genetic underpinnings. Ovarian carcinoma has well-described genetic associations and syndromes, although much of the etiology of the disease remains unknown. CASES: Two sisters present in the 1970s with primary amenorrhea, 46, XX karyotypes, and absent uteri consistent with MRKH syndrome. In the 2010s, both sisters again present for care. Case 1 presents one sister with stage IIIC serous ovarian adenocarcinoma and negative BRCA panel...
November 2017: Gynecologic Oncology Reports
https://www.readbyqxmd.com/read/28931330/sequential-molecular-changes-and-dynamic-oxidative-stress-in-high-grade-serous-ovarian-carcinogenesis
#4
Hiroshi Kobayashi, Kenji Ogawa, Naoki Kawahara, Kana Iwai, Emiko Niiro, Sachiko Morioka, Yuki Yamada
The mechanism of high-grade serous ovarian cancer (HGSC) development remains elusive. This review outlines recent advances in the understanding of sequential molecular changes associated with the development of HGSC, as well as describes oxidative stress-induced genomic instability and carcinogenesis. This article reviews the English-language literature between 2005 and 2017. Clinicopathological features analysis provide a sequential progression of fallopian tubal epithelium to precursor lesions to type 2 HGSC...
September 21, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28931291/-malignant-tumors-of-the-small-bowel
#5
L Němec, P Fabian, J Tomášek, J Jarkovský, R Šefr, L Fiala
INTRODUCTION: Malignant tumors of the small bowel are relatively uncommon neoplasms; their incidence is around 1.5 per 100,000 inhabitants in the Czech Republic. METHOD: 104 patients underwent a resection of the small bowel because of a primary or secondary tumor over the 10-year period between 20062015 at the Masaryk Memorial Cancer Institute. Data from these patients was reviewed retrospectively. Survival rates were analyzed using the Kaplan-Meier method. RESULTS: We observed 45 primary and 59 secondary tumors...
2017: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/28930811/significance-of-ovarian-endometriosis-on-the-prognosis-of-ovarian-clear-cell-carcinoma
#6
Jeong-Yeol Park, Dae-Yeon Kim, Dae-Shik Suh, Jong-Hyeok Kim, Yong-Man Kim, Young-Tak Kim, Joo-Hyun Nam
INTRODUCTION: The aim of this study was to evaluate the significance of ovarian endometriosis on the prognosis of ovarian clear cell carcinoma (OCCC). METHODS: Patients with OCCC were divided into 2 groups according to the presence of ovarian endometriosis: group 1, no coexisting ovarian endometriosis; group 2, clear cell carcinoma arising from ovarian endometriosis or the presence of ovarian endometriosis elsewhere in the ovary. Clinicopathologic characteristics, disease-free survival (DFS), and overall survival (OS) were compared between the 2 groups...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28930809/survival-benefit-of-adjuvant-radiotherapy-an-analysis-of-low-stage-invasive-ovarian-mucinous-carcinomas
#7
Aalok Kumar, Nhu Le, C Blake Gilks, Jennifer L Santos, Frances Wong, Kenneth Swenerton, Paul J Hoskins, Jessica N McAlpine, Anna V Tinker
OBJECTIVE: Our aim was to evaluate the population-based outcomes of stages I and II invasive ovarian mucinous carcinomas (MCs) treated with adjuvant platinum-based chemotherapy and abdominopelvic radiotherapy (XRT). METHODS: International Federation of Gynecology and Obstetrics stage I/II MC cases referred to the British Columbia Cancer Agency between 1984 and 2014 were reviewed. Chemotherapy (minimum of 3 cycles) and XRT were the institutional policy for stages IA/B (grade 2/3) and IC/II (any grade)...
September 19, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28928856/the-putative-role-of-tp53-alterations-and-p53-expression-in-borderline-ovarian-tumors-correlation-with-clinicopathological-features-and-prognosis-a-mini-review
#8
REVIEW
Andrzej Semczuk, Marek Gogacz, Anna Semczuk-Sikora, Maciej Jóźwik, Tomasz Rechberger
Borderline ovarian tumors (BOTs) represent an independent group among ovarian malignancies, being diagnosed at clinical stage earlier than invasive ovarian carcinomas (OCs) and characterized by a rather favorable outcome after careful surgical management. Data published worldwide showed a substantial discordance of p53 expression in BOTs. The purpose of this work was to present the current status of knowledge on the significance of TP53 gene and p53 protein product alterations in BOTs. In general, higher p53 expression patterns were reported for ovarian malignancies compared to BOTs...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28928854/b-cell-translocation-gene-1-is-downregulated-by-promoter-methylation-in-ovarian-carcinoma
#9
Ji-Ye Kim, Sung-Im Do, Go Eun Bae, Hyun-Soo Kim
A better understanding of tumor biology is important in the identification of molecules that are downregulated in malignancy and in determining their role in tumor suppression. B-cell translocation gene 1 (BTG1) has been shown to act as a tumor suppressor in several types of human malignancy. In this study, we analyzed BTG1 expression in ovarian carcinoma cell lines, and we investigated the mechanism underlying the observed alterations. The methylation status of the BTG1 promoter region was determined by methylation-specific polymerase chain reaction, and the effect of demethylation on BTG1 expression was analyzed...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28927463/towards-precision-medicine-discovering-novel-gynecological-cancer-biomarkers-and-pathways-using-linked-data
#10
Alokkumar Jha, Yasar Khan, Muntazir Mehdi, Md Rezaul Karim, Qaiser Mehmood, Achille Zappa, Dietrich Rebholz-Schuhmann, Ratnesh Sahay
BACKGROUND: Next Generation Sequencing (NGS) is playing a key role in therapeutic decision making for the cancer prognosis and treatment. The NGS technologies are producing a massive amount of sequencing datasets. Often, these datasets are published from the isolated and different sequencing facilities. Consequently, the process of sharing and aggregating multisite sequencing datasets are thwarted by issues such as the need to discover relevant data from different sources, built scalable repositories, the automation of data linkage, the volume of the data, efficient querying mechanism, and information rich intuitive visualisation...
September 19, 2017: Journal of Biomedical Semantics
https://www.readbyqxmd.com/read/28923080/prognostic-analysis-for-chinese-patients-with-stage-i-ovarian-endometrioid-carcinoma
#11
Yu Zhao, Shu Wang, Yi-Min Qu, Yu-Ting Ji, Keng Shen, Jing He Lang
BACKGROUND: This study aimed to identify the clinical and pathological characteristics and the possible prognostic factors for Chinese patients with early-stage ovarian endometrioid carcinoma. METHODS: The present study reviewed the medical records of patients who received initial treatment and a postoperative pathological diagnosis of ovarian endometrioid carcinoma at our center. In all, 78 patients had stage I ovarian endometrioid carcinoma. RESULTS: In this series, the 5-year overall survival rate and 5-year disease-free survival (DFS) rates of patients with stage I ovarian endometrioid carcinoma was 98...
September 18, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28922388/expression-and-prognosis-analyses-of-the-tob-btg-antiproliferative-apro-protein-family-in-human-cancers
#12
Yuru Bai, Lu Qiao, Ning Xie, Yongquan Shi, Na Liu, Jinhai Wang
BACKGROUND: Despite advances in early diagnosis and treatment, cancer remains the major cause of mortality in the world. The Tob/BTG antiproliferative (APRO) protein family is reported to participate in diverse human diseases. However, there's little known about their expression and prognostic values in most human cancers. METHODS: We performed a detailed cancer vs. normal analysis. The mRNA expression levels of APRO family in various cancers were analyzed via the Oncomine database...
2017: PloS One
https://www.readbyqxmd.com/read/28921304/expression-and-purification-of-an-fgf9-fusion-protein-in-e-coli-and-the-effects-of-the-fgf9-subfamily-on-human-hepatocellular-carcinoma-cell-proliferation-and-migration
#13
Shen Wang, Haipeng Lin, Tiantian Zhao, Sisi Huang, David G Fernig, Nuo Xu, Fenfang Wu, Mi Zhou, Chao Jiang, Haishan Tian
Fibroblast growth factor (FGF) 9 has oncogenic activity and plays an important role in the development of ovarian, lung, prostate, and gastric cancers. In the present study, with the aim of reducing the cost of utilizing growth factors in cancer research, a simple and efficient method for the preparation of recombinant human (rh)FGF9 in Escherichia coli was established. The rhFGF9 fusion protein (6 × His-TEV-rhFGF9) and the native protein released by tobacco etch virus (TEV) protease were obtained using a Ni-NTA system, with > 95% purity...
September 18, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28920619/a-novel-method-for-identifying-potential-disease-related-mirnas-via-a-disease-mirna-target-heterogeneous-network
#14
Liang Ding, Minghui Wang, Dongdong Sun, Ao Li
MicroRNAs (miRNAs), as a kind of important small endogenous single-stranded non-coding RNA, play critical roles in a large number of human diseases. However, the currently known experimental verifications of the disease-miRNA associations are still rare and experimental identification is time-consuming and labor-intensive. Accordingly, identifying potential disease-related miRNAs to help people understand the pathogenesis of complex diseases has become a hot topic. In this study, we take advantage of known disease-miRNA associations combined with a large number of experimentally validated miRNA-target associations, and further develop a novel disease-miRNA-target heterogeneous network for identifying disease-related miRNAs...
September 18, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28920005/the-frequency-of-neoantigens-per-somatic-mutation-rather-than-overall-mutational-load-or-number-of-predicted-neoantigens-per-se-is-a-prognostic-factor-in-ovarian-clear-cell-carcinoma
#15
Hirokazu Matsushita, Kosei Hasegawa, Katsutoshi Oda, Shogo Yamamoto, Akira Nishijima, Yuichi Imai, Kayo Asada, Yuji Ikeda, Takahiro Karasaki, Keiichi Fujiwara, Hiroyuki Aburatani, Kazuhiro Kakimi
Neoantigens derived from tumor-specific somatic mutations are excellent targets for anti-tumor immune responses. In ovarian clear cell carcinoma (OCCC), checkpoint blockade yields durable responses in a subset of patients. To approach the question of why only some patients respond, we first investigated neoantigen loads and immune signatures using exome sequencing and expression array data for 74 OCCC patients treated conventionally. Neither the number of missense mutations nor total predicted neoantigens assessed in the tumor correlated with clinical outcomes...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28919991/umbilical-cord-blood-cd34-progenitor-derived-nk-cells-efficiently-kill-ovarian-cancer-spheroids-and-intraperitoneal-tumors-in-nod-scid-il2rg-null-mice
#16
Janneke S Hoogstad-van Evert, Jeannette Cany, Dirk van den Brand, Manon Oudenampsen, Roland Brock, Ruurd Torensma, Ruud L Bekkers, Joop H Jansen, Leon F Massuger, Harry Dolstra
Adoptive transfer of allogeneic natural killer (NK) cells is an attractive therapy approach against ovarian carcinoma. Here, we evaluated the potency of highly active NK cells derived from human CD34+ haematopoietic stem and progenitor cells (HSPC) to infiltrate and mediate killing of human ovarian cancer spheroids using an in vivo-like model system and mouse xenograft model. These CD56+Perforin+ HSPC-NK cells were generated under stroma-free conditions in the presence of StemRegenin-1, IL-15, and IL-12, and exerted efficient cytolytic activity and IFNγ production toward ovarian cancer monolayer cultures...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28918402/rare-case-of-primary-leiomyosarcoma-of-sigmoid-mesocolon
#17
Aizat Sabri Ilias, Huzairi Yaacob, Wan Zainira Wan Zain, Andee Dzulkarnaen Zakaria
We experienced a rare case of primary leiomyosarcoma of sigmoid mesentery. A 45-year-old woman was presented to us with left iliac fossa mass and discomfort for 4-month duration. CT scan of abdomen and pelvis revealed a huge mass 14 cm×14 cm×16 cm occupying left iliac fossa mimicked having a large left ovarian carcinoma. She was subsequently planned for elective total abdominal hysterectomy and bilateral salpingo-oophorectomy by gynaecology team. During laparotomy, a huge mass was revealed arising from sigmoid mesentery invaded to the left lower ureter...
September 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28916367/rucaparib-maintenance-treatment-for-recurrent-ovarian-carcinoma-after-response-to-platinum-therapy-ariel3-a-randomised-double-blind-placebo-controlled-phase-3-trial
#18
Robert L Coleman, Amit M Oza, Domenica Lorusso, Carol Aghajanian, Ana Oaknin, Andrew Dean, Nicoletta Colombo, Johanne I Weberpals, Andrew Clamp, Giovanni Scambia, Alexandra Leary, Robert W Holloway, Margarita Amenedo Gancedo, Peter C Fong, Jeffrey C Goh, David M O'Malley, Deborah K Armstrong, Jesus Garcia-Donas, Elizabeth M Swisher, Anne Floquet, Gottfried E Konecny, Iain A McNeish, Clare L Scott, Terri Cameron, Lara Maloney, Jeff Isaacson, Sandra Goble, Caroline Grace, Thomas C Harding, Mitch Raponi, James Sun, Kevin K Lin, Heidi Giordano, Jonathan A Ledermann
BACKGROUND: Rucaparib, a poly(ADP-ribose) polymerase inhibitor, has anticancer activity in recurrent ovarian carcinoma harbouring a BRCA mutation or high percentage of genome-wide loss of heterozygosity. In this trial we assessed rucaparib versus placebo after response to second-line or later platinum-based chemotherapy in patients with high-grade, recurrent, platinum-sensitive ovarian carcinoma. METHODS: In this randomised, double-blind, placebo-controlled, phase 3 trial, we recruited patients from 87 hospitals and cancer centres across 11 countries...
September 12, 2017: Lancet
https://www.readbyqxmd.com/read/28914967/chemotherapy-response-score-is-a-useful-histological-predictor-of-prognosis-in-high-grade-serous-carcinoma
#19
Authors Priya Singh, Vikrant Kaushal, Bhavana Rai, Arvind Rajwanshi, Nalini Gupta, Pranab Dey, Rashi Garg, Manish Rohilla, Vanita Suri, Sushmita Ghoshal, Radhika Srinivasan
AIM: High grade serous carcinoma (HGSC) is the most common tubal/ovarian malignant tumor usually presenting in advance stage. Interval debulking surgery (IDS) post neoadjuvant chemotherapy (NACT) has been increasingly in use for the management of these patients. Chemotherapy response score (CRS) has been proposed for grading response of tubo-ovarian HGSC to NACT on the basis of examination of IDS specimens. Our aim was to evaluate CRS in post NACT cases, assess the interobserver agreement and correlate it to overall and progression- free survival...
September 15, 2017: Histopathology
https://www.readbyqxmd.com/read/28914675/ganglioneuroblastoma-arising-in-an-ovarian-dermoid-cyst-first-report-in-the-literature
#20
Simon Rajendran, Debra Jensen, W Glenn McCluggage
The development of a somatic neoplasm within an ovarian dermoid cyst (mature cystic teratoma) is a rare, but well described, phenomenon which occurs in approximately 1% of all cases. Any of the tissue components of a dermoid cyst has the potential to undergo neoplastic transformation with carcinoid tumors and squamous cell carcinomas being among the most common neoplasms. We report a case of a ganglioneuroblastoma arising within an ovarian dermoid cyst, an association which, as far as we are aware, has not been described previously...
September 13, 2017: International Journal of Gynecological Pathology
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