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https://www.readbyqxmd.com/read/29332135/sequential-versus-simultaneous-use-of-chemotherapy-and-gonadotropin-releasing-hormone-agonist-gnrha-among-estrogen-receptor-er-positive-premenopausal-breast-cancer-patients-effects-on-ovarian-function-disease-free-survival-and-overall-survival
#1
Ying Zhang, Yajie Ji, Jianwei Li, Li Lei, Siyu Wu, Wenjia Zuo, Xiaoqing Jia, Yujie Wang, Miao Mo, Na Zhang, Zhenzhou Shen, Jiong Wu, Zhimin Shao, Guangyu Liu
OBJECTIVE: To investigate ovarian function and therapeutic efficacy among estrogen receptor (ER)-positive, premenopausal breast cancer patients treated with gonadotropin-releasing hormone agonist (GnRHa) and chemotherapy simultaneously or sequentially. METHOD: This study was a phase 3, open-label, parallel, randomized controlled trial (NCT01712893). Two hundred sixteen premenopausal patients (under 45 years) diagnosed with invasive ER-positive breast cancer were enrolled from July 2009 to May 2013 and randomized at a 1:1 ratio to receive (neo)adjuvant chemotherapy combined with sequential or simultaneous GnRHa treatment...
January 13, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29331996/relevance-of-enlarged-cardiophrenic-lymph-nodes-in-determining-prognosis-of-patients-with-advanced-ovarian-cancer
#2
Hasan Shahriar Md Nuruzzaman, Grace Hwei Ching Tan, Ravichandran Nadarajah, Melissa Teo
Ovarian cancer often presents at an advanced stage with widespread peritoneal and/or extra-abdominal metastases. Complete cytoreduction is the mainstay of treatment for disease confined to peritoneum. But in patients with distant metastases, the role and rationale is less obvious. One of the the most common sites of extra-abdominal disease is the cardiophrenic lymph node (CPLN). In this paper, we described the management of a patient with International Federation of Gynecology and Obstetrics (FIGO) stage IVB epithelial ovarian carcinoma and widespread peritoneal and extra-abdominal metastases to the CPLN, who underwent complete cytoreduction including excision of enlarged CPLN, following neoadjuvant chemotherapy...
January 13, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29331752/synthesis-of-gold-i-phosphine-complexes-containing-the-2-brc6f4pph2-ligand-evaluation-of-anticancer-activity-in-2d-and-3d-spheroidal-models-of-hela-cancer-cells
#3
T Srinivasa Reddy, Steven H Privér, Nedaossadat Mirzadeh, Suresh K Bhargava
Newly synthesised mononuclear gold complexes containing the 2-BrC6F4PPh2 ligand have been fully characterised and their anticancer activity towards five human tumor [prostate (PC3), glioblastoma (U87MG), cervical (HeLa), fibrosarcoma (HT1080), ovarian (SKOV-3)] and normal human embryonic kidney (Hek-293T) cell lines investigated. Some of the synthesised gold complexes displayed higher cytotoxicity than cisplatin towards PC-3, HeLa and U87MG cells and inhibited the thioredoxin reductase (TrxR) enzyme, which is considered a potential target for new compounds in cancer treatment...
December 24, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29331665/blocking-lpa-dependent-signaling-increases-ovarian-cancer-cell-death-in-response-to-chemotherapy
#4
LeAnn C Rogers, Ryan R Davis, Naveen Said, Thomas Hollis, Larry W Daniel
The paradoxical role of reactive oxygen species in cell death versus cell survival establishes a delicate balance between chemotherapy efficacy and management of detrimental side effects. Normal proliferative signaling requires that cells remain inside a redox range that allows reversible protein oxidation to occur. Shifting the redox environment toward highly reducing or oxidizing states leads to cellular stress and cell death. Reactive oxygen species produced in response to Taxol and cisplatin treatment are necessary for effective cancer cell killing but the same ROS leads to damaging side effects in normal tissues...
January 4, 2018: Redox Biology
https://www.readbyqxmd.com/read/29331371/birth-weight-and-the-risk-of-histological-subtypes-of-ovarian-and-endometrial-cancers-results-from-the-copenhagen-school-health-records-register
#5
Britton Trabert, Julie Aarestrup, Lian G Ulrich, Nicolas Wentzensen, Thorkild I A Sørensen, Jennifer L Baker
BACKGROUND: Studies of birth weight associations with ovarian and endometrial cancer risks are limited with inconsistent results, and none has evaluated associations by histologic subtype. We utilized prospectively collected birth weight information to investigate the association with risk of ovarian and endometrial cancers overall and by histologic subtype. METHODS: 162,559 girls, born from 1930 to 1989, from the Copenhagen School Health Records Register (CSHRR) were followed prospectively via linkage with the Danish health registers...
January 10, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29331323/regulation-of-inflammatory-factors-by-double-stranded-rna-receptors-in-breast-cancer-cells
#6
Amritha Venkatesh, Harika Nandigam, Maria Muccioli, Manindra Singh, Tiffany Loftus, Deana Lewis, Michelle Pate, Fabian Benencia
Malignant cells are not the only components of a tumor mass since other cells (e.g., fibroblasts, infiltrating leukocytes and endothelial cells) are also part of it. In combination with the extracellular matrix, all these cells constitute the tumor microenvironment. In the last decade the role of the tumor microenvironment in cancer progression has gained increased attention and prompted efforts directed to abrogate its deleterious effects on anti-cancer therapies. The immune system can detect and attack tumor cells, and tumor-infiltrating lymphocytes (particularly CD8 T cells) have been associated with improved survival or better response to therapies in colorectal, melanoma, breast, prostate and ovarian cancer patients among others...
November 22, 2017: Immunobiology
https://www.readbyqxmd.com/read/29330845/the-association-between-smoking-and-cancer-incidence-in-brca1-and-brca2-mutation-carriers
#7
Kwang-Pil Ko, Shana J Kim, Tomasz Huzarski, Jacek Gronwald, Jan Lubinski, Henry T Lynch, Susan Armel, Sue K Park, Beth Karlan, Christian F Singer, Susan L Neuhausen, Steven A Narod, Joanne Kotsopoulos
Tobacco smoke is an established carcinogen, but the association between tobacco smoking and cancer risk in BRCA mutation carriers is not clear. The aim of this study was to evaluate prospectively the association between tobacco smoking and cancer incidence in a cohort of BRCA1 and BRCA2 mutation carriers. The study population consisted of unaffected BRCA mutation carriers. Information on lifestyle including smoking histories, reproductive factors, and past medical histories was obtained through questionnaires...
January 13, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29330486/new-generation-of-drug-delivery-systems-based-on-ginsenoside-rh2-lysine-and-arginine-treated-highly-porous-graphene-for-improving-anticancer-activity
#8
Hadi Zare-Zardini, Asghar Taheri-Kafrani, Ahmad Amiri, Abdol-Khalegh Bordbar
In this study, Rh2-treated graphene oxide (GO-Rh2), lysine-treated highly porous graphene (Gr-Lys), arginine-treated Gr (Gr-Arg), Rh2-treated Gr-Lys (Gr-Lys-Rh2) and Rh2-treated Gr-Arg (Gr-Arg-Rh2) were synthesized. MTT assay was used for evaluation of cytotoxicity of samples on ovarian cancer (OVCAR3), breast cancer (MDA-MB), Human melanoma (A375) and human mesenchymal stem cells (MSCs) cell lines. The percentage of apoptotic cells was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329880/novel-expression-of-cd11b-in-epithelial-ovarian-cancer-potential-therapeutic-target
#9
Ghassan M Saed, Nicole M Fletcher, Michael P Diamond, Robert T Morris, Nardhy Gomez-Lopez, Ira Memaj
OBJECTIVE: The objective of this study was to determine the expression, and effect of targeting CD11b with a monoclonal antibody in ovarian cancer cells. METHODS: CD11b expression was determined in epithelial ovarian cancer (EOC) cell lines and tissues by immunofluorescence and flow cytometry. Cytotoxicity of the CD11b antibody and synergism with chemothearapeutic drugs were determined by the MTT Cell Proliferation Assay in human macrophages, normal ovarian epithelial cells, and in both sensitive and chemoresistant EOC cell lines...
January 9, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29329782/lpa-induced-migration-of-ovarian-cancer-cells-requires-activation-of-erm-proteins-via-lpa1-and-lpa2
#10
Jeongrak Park, Jin-Hyuck Jang, Seojin Oh, Minhye Kim, Changhoon Shin, Minseok Jeong, Kyun Heo, Jong Bae Park, Sang Ryong Kim, Yong-Seok Oh
Lysophosphatidic acid (LPA) has been implicated in the pathology of human ovarian cancer. This phospholipid elicits a wide range of cancer cell responses, such as proliferation, trans-differentiation, migration, and invasion, via various G-protein-coupled LPA receptors (LPARs). Here, we explored the cellular signaling pathway via which LPA induces migration of ovarian cancer cells. LPA induced robust phosphorylation of ezrin/radixin/moesin (ERM) proteins, which are membrane-cytoskeleton linkers, in the ovarian cancer cell line OVCAR-3...
January 9, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29329342/ternary-copper-ii-complex-nci60-screening-toxicity-studies-and-evaluation-of-efficacy-in-xenograft-models-of-nasopharyngeal-carcinoma
#11
Munirah Ahmad, Shazlan-Noor Suhaimi, Tai-Lin Chu, Norazlin Abdul Aziz, Noor-Kaslina Mohd Kornain, D S Samiulla, Kwok-Wai Lo, Chew-Hee Ng, Alan Soo-Beng Khoo
Copper(II) ternary complex, [Cu(phen)(C-dmg)(H2O)]NO3 was evaluated against a panel of cell lines, tested for in vivo efficacy in nasopharyngeal carcinoma xenograft models as well as for toxicity in NOD scid gamma mice. The Cu(II) complex displayed broad spectrum cytotoxicity against multiple cancer types, including lung, colon, central nervous system, melanoma, ovarian, and prostate cancer cell lines in the NCI-60 panel. The Cu(II) complex did not cause significant induction of cytochrome P450 (CYP) 3A and 1A enzymes but moderately inhibited CYP isoforms 1A2, 2C9, 2C19, 2D6, 2B6, 2C8 and 3A4...
2018: PloS One
https://www.readbyqxmd.com/read/29327929/development-of-candidates-for-pet-imaging-of-ghrelin-receptor-in-disease-design-synthesis-and-evaluation-of-fluorine-bearing-quinazolinone-derivatives
#12
Jin-Qiang Hou, Michael S Kovacs, Savita Dhanvantari, Leonard G Luyt
Molecular imaging with PET (Positron Emission Tomography) is an attractive platform for non-invasive detection and assessment of disease. The development of a PET imaging agent targeting the ghrelin receptor (growth hormone secretagogue receptor type 1a or GHS-R1a) has the potential to lead to the detection and assessment of the higher than normal expression of GHS-R1a in diseases such as prostate, breast, and ovarian cancer. To enable the development of 18F radiopharmaceuticals, we have designed and synthesized three series of quinazolinone derivatives, resulting in the identification of two compound (5i, 17) with sub-nanomolar binding affinity and one fluorine-bearing compound (10b) with picomolar binding affinity (20 pM), representing the highest binding affinity for GHS-R1a reported to date...
January 12, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29327913/proteomic-analysis-of-the-downstream-signaling-network-of-parp1
#13
Yuanli Zhen, Yonghao Yu
Poly-ADP-ribosylation (PARylation) is a protein posttranslational modification (PTM) that is critically involved in many biological processes that are linked to cell stress responses. It is catalyzed by a class of enzymes known as poly-ADP-ribose polymerases (PARPs). In particular, PARP1 is a nuclear protein that is activated upon sensing nicked DNA. Once activated, PARP1 is responsible for the synthesis of a large number of PARylated proteins and initiation of the DNA damage response (DDR) mechanisms. This observation provided the rationale for developing PARP1 inhibitors for the treatment of human malignancies...
January 12, 2018: Biochemistry
https://www.readbyqxmd.com/read/29327596/fertility-preservation-in-brca-mutated-women-when-and-how
#14
Michaël Grynberg, Jade Raad, Marjorie Comtet, Claire Vinolas, Isabelle Cédrin-Durnerin, Charlotte Sonigo
BRCA 1 and 2 genes play a critical role in the safeguarding of DNA integrity. It is now well established that BRCA1 and BRCA2-mutated women are at increased risk of breast and ovarian cancers. However, several lines of evidence indicate that this genetic status may also be associated with ovarian dysfunction, in particular a reduced ovarian reserve. Considering the gonadal toxicity of cancer treatments and the recommendation of prophylactic bilateral salpingo-oophorectomy around 40 years, young BRCA mutation carriers are confronted with difficult family planning decisions...
January 12, 2018: Future Oncology
https://www.readbyqxmd.com/read/29327155/downregulation-of-mir-503-contributes-to-the-development-of-drug-resistance-in-ovarian-cancer-by-targeting-pi3k-p85
#15
Di Wu, Pan Lu, Xue Mi, Jinwei Miao
OBJECTIVE: Cisplatin is an important chemotherapeutic agent frequently used in the treatment of ovarian cancer. However, resistance to cisplatin is an obstacle to the treatment of ovarian cancer. Recently, many studies have demonstrated that microRNAs (miRNAs) are involved in the drug resistance of ovarian cancer cells. In this study, we explored the role of miR-503 in cisplatin-resistant ovarian cancer. MATERIALS AND METHODS: To investigate the relationship between miR-503 expression and the sensitivity of ovarian cancer cells to cisplatin, the cells were transfected with miR-503 mimics/inhibitors...
January 11, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29327114/anthropometric-characteristics-and-ovarian-cancer-risk-and-survival
#16
Albina N Minlikeeva, Kirsten B Moysich, Paul C Mayor, John L Etter, Rikki A Cannioto, Roberta B Ness, Kristen Starbuck, Robert P Edwards, Brahm H Segal, Sashikant Lele, Kunle Odunsi, Brenda Diergaarde, Francesmary Modugno
PURPOSE: Multiple studies have examined the role of anthropometric characteristics in ovarian cancer risk and survival; however, their results have been conflicting. We investigated the associations between weight change, height and height change and risk and outcome of ovarian cancer using data from a large population-based case-control study. METHODS: Data from 699 ovarian cancer cases and 1,802 controls who participated in the HOPE study were included. We used unconditional logistic regression adjusted for age, race, number of pregnancies, use of oral contraceptives, and family history of breast or ovarian cancer to examine the associations between self-reported height and weight and height change with ovarian cancer risk...
January 11, 2018: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29327043/association-of-oral-microbiome-with-risk-for-incident-head-and-neck-squamous-cell-cancer
#17
Richard B Hayes, Jiyoung Ahn, Xiaozhou Fan, Brandilyn A Peters, Yingfei Ma, Liying Yang, Ilir Agalliu, Robert D Burk, Ian Ganly, Mark P Purdue, Neal D Freedman, Susan M Gapstur, Zhiheng Pei
Importance: Case-control studies show a possible relationship between oral bacteria and head and neck squamous cell cancer (HNSCC). Prospective studies are needed to examine the temporal relationship between oral microbiome and subsequent risk of HNSCC. Objective: To prospectively examine associations between the oral microbiome and incident HNSCC. Design, Setting, and Participants: This nested case-control study was carried out in 2 prospective cohort studies: the American Cancer Society Cancer Prevention Study II Nutrition Cohort (CPS-II) and the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO)...
January 11, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29325966/role-of-intraoperative-ultrasound-to-extend-the-application-of-minimally-invasive-surgery-for-treatment-of-recurrent-gynecological-cancer
#18
Floriana Mascilini, Lorena Quagliozzi, Francesca Moro, Maria Cristina Moruzzi, Valerio Gallotta, Salvatore Gueli Alletti, Giovanni Scambia, Antonia Carla Testa, Anna Fagotti
STUDY OBJECTIVE: To describe the potential role of intraoperative ultrasound (IOUS) in the detection and localization of recurrent disease in gynecological cancer patients during minimally invasive surgery (MIS). DESIGN: A prospective cohort study (Canadian Task Force II-1). SETTING: A University hospital. PATIENTS: From November 2015 to February 2017, 51 gynecological cancer patients with isolated recurrent disease and candidate for secondary cytoreductive surgery (SCS) were treated by MIS...
January 8, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29325268/-clinical-significance-of-targeting-drug-based-molecular-biomarkers-expression-in-ovarian-clear-cell-carcinoma
#19
M J Li, H R Li, X Cheng, R Bi, X Y Tu, F Liu, L H Chen
Objective: To assess the expression level of targeting drug-based molecular biomarkers in ovarian clear cell carcinoma (OCCC) tissues and its clinical significance. Methods: A total of 63 OCCC patients included 40 primary OCCC and 23 recurrent OCCC for secondary cytoreductive surgery (SCS), who had received primary surgeries at Fudan University Shanghai Cancer Center between January, 2008 and December, 2015 were enrolled, and immunohistochemistry SP method was used to test human epidermal growth factor receptor (EGFR), human epidermal growth factor receptor-2 (HER2), aurora kinase A (AURKA), breast cancer susceptibility gene 1 (BRCA1), BRCA2 and programmed death-ligand 1 (PD-L1)protein expression in paraffin-embedded tissues...
December 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29324748/trans10-cis12-conjugated-linoleic-acid-inhibits-proliferation-and-migration-of-ovarian-cancer-cells-by-inducing-er-stress-autophagy-and-modulation-of-src
#20
Mian M K Shahzad, Mildred Felder, Kai Ludwig, Hannah R Van Galder, Matthew L Anderson, Jong Kim, Mark E Cook, Arvinder K Kapur, Manish S Patankar
The goal of this study was to investigate the anti-cancer effects of Trans10,cis12 conjugated linoleic acid (t10,c12 CLA). MTT assays and QCM™ chemotaxis 96-wells were used to test the effect of t10,c12 CLA on the proliferation and migration and invasion of cancer cells. qPCR and Western Blotting were used to determine the expression of specific factors. RNA sequencing was conducted using the Illumina platform and apoptosis was measured using a flow cytometry assay. t10,c12 CLA (IC50, 7 μM) inhibited proliferation of ovarian cancer cell lines SKOV-3 and A2780...
2018: PloS One
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