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https://www.readbyqxmd.com/read/28918402/rare-case-of-primary-leiomyosarcoma-of-sigmoid-mesocolon
#1
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/28914967/chemotherapy-response-score-is-a-useful-histological-predictor-of-prognosis-in-high-grade-serous-carcinoma
#2
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/28903185/mixed-micelles-for-encapsulation-of-doxorubicin-with-enhanced-in-vitro-cytotoxicity-on-breast-and-ovarian-cancer-cell-lines-versus-doxil-%C3%A2
#3
Maximiliano Cagel, Ezequiel Bernabeu, Lorena Gonzalez, Eduardo Lagomarsino, Marcela Zubillaga, Marcela A Moretton, Diego A Chiappetta
Doxorubicin (DOX) is used as a "first-line" antineoplastic drug in ovarian and metastatic breast cancer. However, serious side effects, such as cardiotoxicity have been reported after DOX intravenous administration. Hence, we investigated different micelle-former biomaterials, as Soluplus(®), Pluronic F127, Tetronic T1107 and d-α-tocopheryl polyethylene glycol 1000 succinate (TPGS) to develop a potential mixed micellar nanocarrier for DOX delivery. Since DOX hydrochloride is a poor candidate to be encapsulated inside the hydrophobic core of the mixed micelles, we assayed a hydrophobic complex between DOX and sodium deoxycholate (NaDC) as an excellent candidate to be encapsulated within polymeric micelles...
September 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28898232/crosstalk-between-tems-and-endothelial-cells-modulates-angiogenesis-and-metastasis-via-igf1-igf1r-signalling-in-epithelial-ovarian-cancer
#4
Xinjing Wang, Qinyi Zhu, Yingying Lin, Li Wu, Xiaoli Wu, Kai Wang, Qizhi He, Congjian Xu, Xiaoping Wan, Xipeng Wang
BACKGROUND: Epithelial ovarian cancer (EOC) is the leading cause of death from gynaecologic malignancies and has a poor prognosis due to metastasis. Drugs targeting the angiogenesis pathway significantly improve patient outcome. However, the key factors linking angiogenesis and metastasis have not been elucidated. In this study, we found Tie2 expressing monocytes (CD14(+)Tie2(+), TEMs) as key contributors to angiogenesis and metastasis of EOC. METHODS: Tissue slides were evaluated by immunofluorescence for the presence of total tissue macrophages and TEMs...
September 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28894584/serum-human-epididymis-protein-4-levels-in-colorectal-cancer-patients
#5
Yasemi N Kemal, Guzi N Demirag, Abdulkeri M Bedir, Leman Tomak, Murat Derebey, Di Lek Erdem, Ufuk Gör, Idris Yücel
Tumour markers are widely used for the diagnosis, staging and monitoring of colorectal cancer (CRC) patients in clinical practice. Carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA19-9) are the most frequently used biomarkers in CRC patients. A number of studies have recently investigated the presence of human epididymis protein 4 (HE4) overexpression in certain cancer types. Its significance in ovarian and endometrial cancer has been well-demonstrated. The aim of the present study was to evaluate the significance of serum HE4 levels in CRC patients...
September 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28892985/cellular-fibroma-of-ovary-coexisting-with-proliferative-endometrium-post-menopause-a-rare-presentation
#6
Vandana Mohapatra, Susama Patra, Mamita Nayak, Radhamohan Gharei, Nibedita Sahoo
Ovarian fibromas are benign sex cord stromal tumours occurring in peri-menopausal and post-menopausal women. These tumours are composed of spindle fibroblastic cells producing collagen. They are almost always endocrine-inert and are rarely associated with hormone production. We report herein a case of a 60-year-old Indian woman presenting as post-menopausal bleeding. Imaging studies and endometrial biopsy revealed a right ovarian solid tumour coexisting with thickened proliferative endometrium, other causes of hyperoestrogenism being excluded in the woman...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28888390/ovarian-teratoma-a-case-from-15th-18th-century-lisbon-portugal
#7
Sofia N Wasterlain, Rute V Alves, Susana J Garcia, António Marques
This paper discusses the differential diagnosis of an unusual calcified mass found in the pelvic cavity of 45+-year-old female excavated from 15th-18th century Lisbon (Portugal). The mass is relatively large, irregularly shaped, and exhibits a concave base with malformed teeth embedded within its inner surface. Considering its macroscopic and radiological characteristics, several conditions were considered in the differential diagnosis, namely eccyesis, fetus in fetu, lithopaedion, and ovarian teratoma. However, the morphological features of the specimen, such as its structure, morphology, and dimensions, are diagnostic of a teratoma...
September 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/28887829/using-public-data-for-comparative-proteome-analysis-in-precision-medicine-programs
#8
Christopher S Hughes, Gregg B Morin
Maximizing the clinical utility of information obtained in longitudinal precision medicine programs would benefit from robust comparative analyses to known information to assess biological features of patient material, in the hopes of identifying the underlying features that drive their disease phenotype. In this study we investigate the potential for utilizing publically deposited mass spectrometry-based proteomics data to perform inter-study comparisons of cell line or tumour tissue materials. Using in-depth quantitative proteomics data acquired from analysis of ovarian cancer cell lines, we demonstrate the robust recapitulation of observable gene expression dynamics between individual studies carried out using significantly different methodologies...
September 9, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28884602/enhancement-of-anticancer-activity-by-silibinin-and-paclitaxel-combination-on-the-ovarian-cancer
#9
Fatima Pashaei-Asl, Roghiyeh Pashaei-Asl, Khodadad Khodadadi, Abolfazl Akbarzadeh, Esmaeil Ebrahimie, Maryam Pashaiasl
BACKGROUND: Ovarian carcinoma is the most lethal cancer among all gynaecological malignancies. One of the most chemotherapy drugs used for ovarian cancer is paclitaxel which induces apoptosis. Paclitaxel has been used for many years. Similar to the most cancers this responds to chemotherapy initially but in a long run, drug resistance happens which fails the treatment procedure. Combination of chemotherapy drugs has been suggested to deal with this issue. Silibinin, a plant extraction, has been used from ancient time in traditional medicine and identified to have powerful antioxidant activity...
September 8, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28871211/functional-prediction-of-long-non-coding-rnas-in-ovarian-cancer-associated-fibroblasts-indicate-a-potential-role-in-metastasis
#10
Fatemeh Vafaee, Emily K Colvin, Samuel C Mok, Viive M Howell, Goli Samimi
Cancer-associated fibroblasts (CAFs) contribute to the poor prognosis of ovarian cancer. Unlike in tumour cells, DNA mutations are rare in CAFs, raising the likelihood of other mechanisms that regulate gene expression such as long non-coding RNAs (lncRNAs). We aimed to identify lncRNAs that contribute to the tumour-promoting phenotype of CAFs. RNA expression from 67 ovarian CAF samples and 10 normal ovarian fibroblast (NOF) samples were analysed to identify differentially expressed lncRNAs and a functional network was constructed to predict those CAF-specific lncRNAs involved in metastasis...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28869177/correlation-of-18-f-fdg-uptake-on-pet-ct-with-ki67-immunohistochemistry-in-pre-treatment-epithelial-ovarian-cancer
#11
M Mayoral, P Paredes, A Saco, P Fusté, P Perlaza, A Tapias, A Fernandez-Martinez, L Vidal, J Ordi, J Pavia, S Martinez-Roman, F Lomeña
OBJECTIVE: Standardized uptake value (SUV) and volumetric parameters such as metabolic tumour volume (MTV) and total lesion glycolysis (TLG) from (18)F-FDG PET/CT are useful criteria for disease prognosis in pre-operative and post-treatment epithelial ovarian cancer (EOC). Ki67 is another prognostic biomarker in EOC, associated with tumour aggressiveness. The aim of this study is to evaluate the association between (18)F-FDG PET/CT measurements and Ki67 in pre-treatment EOC to determine if PET/CT parameters could non-invasively predict tumour aggressiveness...
August 28, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28868628/ovarian-cancer-stem-cells-promote-tumour-immune-privilege-and-invasion-via-ccl5-and-regulatory-t-cells
#12
Yanan You, Yiying Li, Ming Li, Lei Mi, Mengyao Wu, Ying Qu, Yan Yuan, Tong Chen, Hua Jiang
Emerging evidence indicates a link between the increased proportion of regulatory T cells (Tregs) and reduced survival in patients who have been diagnosed with cancer. Cancer stem cells (CSCs) have been indicated to play a vital role in tumour initiation, drug resistance and recurrence. However, the relationship between Tregs and CSCs remains largely unknown. Here, we sorted out ovarian cancer stem-like side population (SP) cells and CD133(+) cells to investigate the influence of ovarian CSCs on Tregs. Among the various immune-related molecules that we assessed, C-C motif chemokine ligand 5 (CCL5) was the most elevated in ovarian CSCs relative to that in the non-CSCs...
September 4, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28866612/dna-repair-related-functional-assays-for-the-classification-of-brca1-and-brca2-variants-a-critical-review-and-needs-assessment
#13
REVIEW
Amanda Ewart Toland, Paul R Andreassen
Mutation of BRCA1 and BRCA2 is the most common cause of inherited breast and ovarian cancer. Genetic screens to detect carriers of variants can aid in cancer prevention by identifying individuals with a greater cancer risk and can potentially be used to predict the responsiveness of tumours to therapy. Frequently, classification cannot be performed based on traditional approaches such as segregation analyses, including for many missense variants, which are therefore referred to as variants of uncertain significance (VUS)...
September 2, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28865508/carcinoid-syndrome-and-carcinoid-heart-disease-as-manifestations-of-non-metastatic-ovarian-neuroendocrine-tumour
#14
Joana Simões-Pereira, Lai Mun Wang, Attila Kardos, Ashley Grossman
The carcinoid syndrome is rare but it is associated with carcinoid heart disease in more than a half of the cases. Carcinoid heart disease is typically characterised by morphological and functional modifications of right-sided valves. Its aetiology is probable multifactorial but serotonin appears to play a key role in the development of this valvular disease. Unlike gastrointestinal neuroendocrine tumours, ovarian neuroendocrine tumours can present with carcinoid syndrome and carcinoid heart disease in the absence of liver metastases; such ovarian neuroendocrine tumours are a unique clinical entity...
May 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28865279/design-synthesis-and-biological-evaluation-of-novel-c-29-carbamate-celastrol-derivatives-as-potent-and-selective-cytotoxic-compounds
#15
Sandra A C Figueiredo, Jorge A R Salvador, Roldán Cortés, Marta Cascante
Celastrol and its derivatives have been reported for their potent anticancer activity. Among other celastrol analogues, novel carbamate derivatives were designed and synthesised, and their biological activity on the viability of human cancer cell lines was evaluated. Additionally, a preliminary structure-activity relationship study was conducted. Derivative 18 showed the highest activity on cancer cell viability, combined with the best selectivity between malignant cells and non-malignant fibroblasts. Preliminary mechanistic studies of its anti-tumour action indicated that compound 18 has an antiproliferative effect on SKOV-3 human ovarian cancer cells (IC50 = 0...
August 26, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28854921/spatial-and-temporal-epithelial-ovarian-cancer-cell-heterogeneity-impacts-maraba-virus-oncolytic-potential
#16
Jessica G Tong, Yudith Ramos Valdes, Milani Sivapragasam, John W Barrett, John C Bell, David Stojdl, Gabriel E DiMattia, Trevor G Shepherd
BACKGROUND: Epithelial ovarian cancer exhibits extensive interpatient and intratumoral heterogeneity, which can hinder successful treatment strategies. Herein, we investigated the efficacy of an emerging oncolytic, Maraba virus (MRBV), in an in vitro model of ovarian tumour heterogeneity. METHODS: Four ovarian high-grade serous cancer (HGSC) cell lines were isolated and established from a single patient at four points during disease progression. Limiting-dilution subcloning generated seven additional subclone lines to assess intratumoral heterogeneity...
August 30, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28853212/tissue-glycomics-distinguish-tumour-sites-in-women-with-advanced-serous-adenocarcinoma
#17
Merrina Anugraham, Francis Jacob, Arun Vijay Everest-Dass, Andreas Schoetzau, Sheri Nixdorf, Neville F Hacker, Daniel Fink, Viola Heinzelmann-Schwarz, Nicolle H Packer
In the era of precision medicine, the tailoring of cancer treatment is increasingly important as we transition from organ-based diagnosis towards a more comprehensive and patient-centric molecular diagnosis. This is particularly the case for high-grade serous adenocarcinomas of the ovary and peritoneum, which are commonly diagnosed at an advanced stage, and collectively treated and managed similarly. We characterized the N- and O- glycome of serous ovarian (OC) and peritoneal cancer (PC) tissues using PGC-LC-ESI-IT-MS/MS profiling and validated the discriminatory glycans and their corresponding glyco-gene expression levels using cell lines and transcriptomic data from 232 patients...
August 29, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28846697/prognostic-relevance-of-a-t-type-calcium-channels-gene-signature-in-solid-tumours-a-correlation-ready-for-clinical-validation
#18
Lorenzo Fornaro, Caterina Vivaldi, Dong Lin, Hui Xue, Alfredo Falcone, Yuzhuo Wang, Francesco Crea, Martin D Bootman
BACKGROUND: T-type calcium channels (TTCCs) mediate calcium influx across the cell membrane. TTCCs regulate numerous physiological processes including cardiac pacemaking and neuronal activity. In addition, they have been implicated in the proliferation, migration and differentiation of tumour tissues. Although the signalling events downstream of TTCC-mediated calcium influx are not fully elucidated, it is clear that variations in the expression of TTCCs promote tumour formation and hinder response to treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28843267/screening-for-circulating-tumour-cells-allows-early-detection-of-cancer-and-monitoring-of-treatment-effectiveness-an-observational-study
#19
Karin Ried, Peter Eng, Avni Sali
Background: Circulating-Tumour-Cells (CTC) provide a blood biomarker for early carcinogenesis, cancer progression and treatment effectiveness. An increase in CTCs is associated with cancer progression, a CTC decrease with cancer containment or remission. Several technologies have been developed to identify CTC, including the validated Isolation-by-Size-of-Epithelial-Tumour (ISET, Rarecells) technology, combining blood filtration and microscopy using standard histo-pathological criteria. Methods: This observational study compared CTC count to cancer status and cancer risk, by monitoring treatment effectiveness in cancer patients and by screening for CTC in asymptomatic patients with risk factors, including family history of cancer...
August 27, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28842609/nanoceria-mediated-delivery-of-doxorubicin-enhances-the-anti-tumour-efficiency-in-ovarian-cancer-cells-via-apoptosis
#20
Joydeep Das, Yun-Jung Choi, Jae Woong Han, Abu Musa Md Talimur Reza, Jin-Hoi Kim
Nanocarriers are widely used for effective delivery of anticancer drugs to tumours with potential to improve cancer treatment. Here, we developed a nanoceria (CeO2)-based system for delivery of the anti-cancer drug doxorubicin (DOX) to human ovarian cancer cells. Negatively charged nanoceria could conjugate with the cationic DOX via electrostatic interaction under physiological conditions, forming DOX-loaded nanoceria (CeO2/DOX). CeO2/DOX particles displayed nearly spherical shapes, along with superior drug-loading content (22...
August 25, 2017: Scientific Reports
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