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https://www.readbyqxmd.com/read/28101463/development-of-a-novel-human-single-chain-antibody-against-egfrviii-antigen-by-phage-display-technology
#1
Leila Rahbarnia, Safar Farajnia, Hossein Babaei, Jafar Majidi, Bahman Akbari, Shiva Ahdi Khosroshahi
Purpose: EGFRvIII as the most common mutant variant of the epidermal growth factor receptor is resulting from deletion of exons 2-7 in the coding sequence and junction of exons 1 and 8 through a novel glycine residue. EGFRvIII is highly expressed in glioblastoma, carcinoma of the breast, ovary, and lung but not in normal cells. The aim of the present study was identification of a novel single chain antibody against EGFRvIII as a promising target for cancer therapy. Methods: In this study, a synthetic peptide corresponding to EGFRvIII protein was used for screening a naive human scFv phage library...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28101406/design-and-characterization-of-a-combined-oct-and-wide-field-imaging-falloposcope-for-ovarian-cancer-detection
#2
Molly Keenan, Tyler H Tate, Khanh Kieu, John F Black, Urs Utzinger, Jennifer K Barton
Early detection of ovarian cancer is only achieved in around 20% of women due to lack of effective screening. We propose a method for surveillance of high risk women based on a microendoscope introduced transvaginally to image the fallopian tubes and ovaries. This requires extreme miniaturization of the optics and catheter sheath. We describe the design of a falloposcope that combines optical coherence tomography (OCT) and wide field imaging into a sub-1 mm diameter package. We characterize the systems and show that they provide contrast on ex-vivo samples of ovary and fallopian tube...
January 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28098572/metastatic-organotropism-an-intrinsic-property-of-breast-cancer-molecular-subtypes
#3
Shi Wei, Gene P Siegal
It has long been known that some cancers have the propensity to metastasize to certain organs thus creating a nonrandom distribution of sites for distant relapse, a phenomenon known as "metastatic organotropism." Some of these examples include ovary primary to abdominal cavity, prostate primary to bone, and pancreas primary to liver. In contrast, other tumor types, such as mammary and renal cell carcinoma, can relapse in multiple organs although approximately half of advanced breast cancers metastasize to bone...
January 16, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28089848/sparc-preserves-follicular-epithelium-integrity-in-insect-ovaries
#4
Paula Irles, Saray Ramos, Maria-Dolors Piulachs
The importance of juvenile hormone regulating insect oogenesis suggests looking for genes whose expression is regulated by this hormone. SPARC is a calcium-binding glycoprotein that forms part of the extracellular membranes, which in vertebrates participates in bones mineralization or regulating cell proliferation in some cancer types. This large number of functions described for SPARC in different species might be related to the significant differences in its structure observed when comparing different species-groups...
January 12, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28087476/phospholipase-d-mrna-expression-and-clinical-role-in-high-grade-serous-carcinoma
#5
Keren Harel-Dassa, Saul Yedgar, Claes G Tropé, Ben Davidson, Reuven Reich
This objective of this study was to analyze the expression and clinical role of phospholipase D (PLD) in high-grade serous carcinoma (HGSC). PLD1 and PLD2 isoform expression was studied in 125 HGSC specimens (73 effusions, 28 ovarian tumors, 24 solid metastases) using quantitative real-time reverse-transcription polymerase chain reaction (qRT-PCR). Expression levels were analyzed for association with clinicopathologic parameters, including chemoresponse, and survival. PLD1 and PLD2 isoforms were found in the majority of specimens at all anatomic sites and their levels were strongly positively related (P<...
January 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28072594/genetics-consultation-rates-following-a-diagnosis-of-high-grade-serous-ovarian-carcinoma-in-the-canadian-province-of-ontario
#6
Jacob McGee, Karen Panabaker, Sean Leonard, Peter Ainsworth, Laurie Elit, Salimah Z Shariff
OBJECTIVE: In 2001, the province of Ontario expanded cancer genetic testing eligibility to include all women with high-grade serous ovarian carcinoma (HGSC) of the ovary, fallopian tube, and peritoneum. The aim of this study was to determine the proportion of women who attended genetics counseling for consideration of BRCA1/2 gene analysis. We also sought to examine if regional differences in consultation rate exist across administrative health regions in the province of Ontario. METHODS: We identified all women with a pathological diagnosis of HGSC in the province of Ontario between 1997 until 2011...
January 9, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28067940/geographical-and-epidemiological-analysis-of-oncological-incidence-in-paediatric-and-adolescent-ages-in-a-municipality-of-north-western-italy-vercelli-years-2002-2009
#7
C Salerno, P Berchialla, L A Palin, E Barasolo, P G Fossale, P Marciani
INTRODUCTION: This study of the geographical incidence on the oncological mortality in young age (0-44 years) in the City of Vercelli, was aimed to address the concerns of the population and the request of municipal administrators. A detailed and sophisticated study for a City of medium-small size is due for the presence of various sources of pressure, such as a MSW incinerator just a few kilometres from the city and an intensive agricultural activity that characterizes the entire area...
January 2017: Annali di Igiene: Medicina Preventiva e di Comunità
https://www.readbyqxmd.com/read/28065618/pathological-features-and-clinical-behavior-of-lynch-syndrome-associated-ovarian-cancer
#8
N A J Ryan, D G Evans, K Green, E J Crosbie
OBJECTIVE: Lynch syndrome (LS) is an inherited tumor predisposition condition caused by mutations in the mismatch repair (MMR) genes. Mutation carriers are at increased risk of various malignancies, including ovarian cancer (OC). Relatively little is known about the pathological features and clinical behavior of LS associated OC. METHODS: We analyzed the data of 1047 proven MMR mutated individuals from a prospectively maintained database at a large referral center for genomic medicine in the North West of England...
January 5, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28064442/tumor-derived-spheroids-relevance-to-cancer-stem-cells-and-clinical-applications
#9
REVIEW
Tatsuya Ishiguro, Hirokazu Ohata, Ai Sato, Kaoru Yamawaki, Takayuki Enomoto, Koji Okamoto
Recently, many types of in vitro three-dimensional (3D) culture systems have been developed to recapitulate the in vivo growth conditions of cancer. The cancer 3D culture methods aim to preserve the biological characteristics of original tumors better than conventional two-dimensional (2D) monolayer cultures, and include tumor-derived organoids, tumor-derived spheroids, organotypic multicellular spheroids, and multicellular tumor spheroids. The 3D culture methods differ in terms of cancer cell sources, protocols for cell handling, and the required time intervals...
January 8, 2017: Cancer Science
https://www.readbyqxmd.com/read/28063961/zinc-supplementation-of-vitrification-medium-improves-in-vitro-maturation-and-fertilization-of-oocytes-derived-from-vitrified-warmed-mouse-ovaries
#10
Shirin Geravandi, Mehri Azadbakht, Mahsa Pourmoradi, Fatemeh Nowrouzi
Oocyte cryopreservation is an approach for fertility preservation for normal women and cancer patients facing chemo and radiotherapy. The present study evaluated the effect of adding zinc chloride to the vitrification medium used for whole mouse ovaries and then assessing the in vitro maturation and fertilization of oocytes when they were subsequently extracted from these vitrified ovarian tissues. Four vitrification solutions with 0, 100,150 and 200 μg/dl zinc (V0, V1, V2 and V3 respectively) were compared...
January 4, 2017: Cryobiology
https://www.readbyqxmd.com/read/28062021/endometrioid-carcinoma-of-the-ovary-outcomes-compared-to-serous-carcinoma-after-10-years-of-follow-up
#11
Geneviève Bouchard-Fortier, Tony Panzarella, Barry Rosen, William Chapman, Lilian T Gien
OBJECTIVES: The prognostic significance of endometrioid ovarian cancer is unclear. In this study we compared rates of overall survival (OS) and disease-free survival between patients with endometrioid and serous ovarian cancers using long-term follow-up data. METHODS: We included patients with endometrioid or serous ovarian cancers diagnosed at a single regional cancer centre between 1988 and 2006. Data on baseline and treatment characteristics were collected retrospectively...
January 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28060142/the-importance-of-appendectomy-in-surgery-for-mucinous-adenocarcinoma-of-the-ovary
#12
Mikkel Rosendahl, Laura Amalie Haueberg Oester, Claus Kim Høgdall
OBJECTIVE: The aim of this study was to assess the importance of appendectomy during surgery for mucinous ovarian cancer. It can be difficult to distinguish between primary ovarian and primary appendiceal cancers clinically, histologically, and immunohistochemically. Removal of the appendix may facilitate differential diagnosis, improve staging, and possibly increase 5-year survival but may also be associated with increased postsurgical morbidity. In the largest population published to date, we analyze and discuss these matters...
January 4, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28053622/role-of-ovarian-function-suppression-in-premenopausal-women-with-early-breast-cancer
#13
REVIEW
Woo-Chan Park
Historically, endocrine therapy for breast cancer began with ovarian ablation (OA) for the treatment of premenopausal patients. After the identification of estrogen receptors and the development of many antiestrogens, tamoxifen has been approved and used as the standard endocrine therapy for hormonal receptor (HR)-positive premenopausal patients to date. With the development of luteinizing hormone-releasing hormone agonists, the paradigm of endocrine therapy for premenopausal women with HR-positive breast cancer began to change from OA to ovarian function suppression (OFS)...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28052592/innocent-but-deadly-nontoxic-organoiridium-catalysts-promote-selective-cancer-cell-death
#14
Lu Yang, Sohini Bose, Anh H Ngo, Loi H Do
We demonstrate that nontoxic organoiridum complexes can selectively chemosensitize cancer cells toward platinum antiproliferative agents. Treatment of human cancer cells (breast, colon, eye/retina, head/neck, lung, ovary, and blood) with the iridium chemosensitizers led to lowering of the 50 % growth inhibition concentration (IC50 ) of the Pt drug carboplatin by up to ∼30-50 %. Interestingly, non-cancer cells were mostly resistant to the chemosensitizing effects of the iridium complexes. Cell culture studies indicate that cancer cells that were administered with Ir show significantly higher reactive oxygen species concentrations as well as NAD(+) /NADH ratios (oxidized vs...
January 4, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28050959/fertility-preservation-in-endometrial-cancer-is-it-safe-review-of-the-literature
#15
REVIEW
Márcia Mendonça Carneiro, Rívia Mara Lamaita, Márcia Cristina França Ferreira, Agnaldo Lopes Silva-Filho
Almost 5% of women with endometrial cancer are under age 40, and they often have well-differentiated endometrioid estrogen-dependent tumors. Cancer survival rates have improved over the last decades so strategies to avoid or reduce the reproductive damage caused by oncologic treatment are needed. We reviewed the published literature to find evidence to answer the following questions: How should we manage women in reproductive age with endometrial cancer? How safe is fertility preservation in endometrial cancer? Can pregnancy influence endometrial cancer recurrence? What are the fertility sparing options available? Progestins may be prescribed after careful evaluation and counseling...
December 1, 2016: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/28043364/inhibition-of-peripubertal-sheep-mammary-gland-development-by-cysteamine-through-reducing-progesterone-and-growth-factor-production
#16
Yong Zhao, Yanni Feng, Hongfu Zhang, Xin Kou, Lan Li, Xinqi Liu, Pengfei Zhang, Liantao Cui, Meiqiang Chu, Wei Shen, Lingjiang Min
Cysteamine has been used for treating cystinosis for many years, and furthermore it has also been used as a therapeutic agent for different diseases including Huntington's disease, Parkinson's disease (PD), nonalcoholic fatty liver disease, malaria, cancer, and others. Although cysteamine has many potential applications, its use may also be problematic. The effects of low doses of cysteamine on the reproductive system, especially the mammary glands are currently unknown. In the current investigation, low dose (10 mg/kg BW/day) of cysteamine did not affect sheep body weight gain or organ index of the liver, spleen, or heart; it did, however, increase the levels of blood lymphocytes, monocytes, and platelets...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/28041594/malignant-and-borderline-epithelial-ovarian-tumors-in-the-pediatric-and-adolescent-population
#17
Dimitrios Nasioudis, Michail Alevizakos, Kevin Holcomb, Steven S Witkin
OBJECTIVES: Malignant and borderline ovarian tumors of epithelial origin are rarely encountered among prepubertal girls and adolescents. The aim of this population-based study was to elucidate their clinicopathological characteristics and prognosis using a multi-institutional tumor registry. STUDY DESIGN AND OUTCOMES: The National Cancer Institute's Surveillance, Epidemiology, and End Results database was accessed and a cohort of females aged <=19years old, diagnosed between 1988 and 2013 with a borderline ovarian tumor (BOT) or a malignant epithelial ovarian carcinoma (EOC) was accessed...
February 2017: Maturitas
https://www.readbyqxmd.com/read/28040471/developmental-effects-of-imatinib-mesylate-on-follicle-assembly-and-early-activation-of-primordial-follicle-pool-in-postnatal-rat-ovary
#18
Babak Asadi-Azarbaijani, Regiane R Santos, Kirsi Jahnukainen, Saskia Braber, Majorie B M van Buursen, Jorma Toppari, Ola D Saugstad, Mirja Nurmio, Irma C Oskam
Imatinib mesylate is an anti-cancer agent that competitively inhibits several receptor tyrosine kinases (RTKs). RTKs play important roles in the regulation of primordial follicle formation, the recruitment of primordial follicles into the pool of growing follicles and maturation of the follicles. In the present study, we investigated the effects of the tyrosine kinase inhibitor imatinib on primordial follicle assembly and early folliculogenesis in postnatal rats. Female Sprague-Dawley rats were treated with either imatinib (150mg/kg) or placebo (water) on postnatal days 2-4...
December 28, 2016: Reproductive Biology
https://www.readbyqxmd.com/read/28038913/rlj-rgd3-induces-apoptosis-via-the-mitochondrial-dependent-pathway-and-inhibits-adhesion-migration-and-invasion-of-human-heya8-cells-via-fak-pathway
#19
Qi Jiang, Qingwei Li, Jianmei Han, Meng Gou, Yuanyuan Zheng, Bowen Li, Rong Xiao, Jihong Wang
Ovarian carcinoma is a tumor derived from ovary, which brings relatively higher mortality rate among the fatal gynecological cancers. Recently, lots of studies have concentrated on the anti-tumor effects of Arg-Gly-Asp (RGD) motif containing peptides due to their integrin binding properties. In order to meet the criterion of genetic engineering drugs, a recombinant RGD toxin protein (rLj-RGD3) without a His-tag was cloned from the buccal glands of Lampetra japonica in the present study. After endotoxin removal, the His-tag removed rLj-RGD3 was shown to inhibit the proliferation of HeyA8 cells...
December 27, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28035489/the-association-between-a-history-of-gestational-diabetes-mellitus-and-future-risk-for-female-malignancies
#20
Oded Fuchs, Eyal Sheiner, Mihai Meirovitz, Ehud Davidson, Ruslan Sergienko, Roy Kessous
OBJECTIVE: To investigate whether patients with a history of gestational diabetes mellitus (GDM) have an increased future risk for female malignancies. STUDY DESIGN: A population-based study compared the incidence of long-term female malignancies (ovary, uterine, breast, and uterine cervix) in a cohort of women with and without a diagnosis of GDM. Deliveries occurred between the years 1988-2013, with a mean follow-up duration of 12 years. Women with known malignancies prior to the index pregnancy were excluded...
December 29, 2016: Archives of Gynecology and Obstetrics
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