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ovarian growth factors

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https://www.readbyqxmd.com/read/28454220/efficacy-of-pegr-1-endostatin-combined-with-ionizing-radiation-on-hypoxic-conditions-in-nude-mice-bearing-skov3-ovarian-carcinoma
#1
Yong-Chun Zhang, Xiu-Mei Li, Zhuang Yu, Xiao-Li Shi, Yong Li, Wan-Lin Wang
Hypoxia occurs in a wide range of solid tumors, and is strongly associated with radio-resistance of malignant tumors. The aim of the present study was to investigate the effect of endostatin combined with ionizing radiation (IR) on hypoxic conditions. A total of 24 mice bearing SKOV3 ovarian carcinoma were divided into three groups. Following injection with pEgr-1-endostatin plasmid for 12 h, the mice in the endostatin-IR-treated group were exposed to 300 cGy/min X-ray for 48 h, and the IR-treated group was exposed to the same condition...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28446239/dasatinib%C3%A2-%C3%A2-gefitinib-a-non-platinum-based-combination-with-enhanced-growth-inhibitory-anti-migratory-and-anti-invasive-potency-against-human-ovarian-cancer-cells
#2
Benoît Thibault, Bertrand Jean-Claude
BACKGROUND: Ovarian cancer is the leading cause of death for gynecological cancers and the 6th cause of women cancer death in developed countries. The late stage detection, the peritoneal dissemination and the acquisition of resistance against carboplatin are the main reasons to explain this poor prognosis and strengthen the need of alternative treatments to improve the management of ovarian cancer and/or to sensitize tumors to platinum salts. Epidermal growth factor receptor (EGFR), hepatocyte growth factor receptor (Met) and cellular Src kinase (c-Src) are crucial kinases implied in ovarian tumor growth, survival, invasion and resistance to carboplatin...
April 26, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28439292/effects-of-bushen-tianjing-recipe-in-a-rat-model-of-tripterygium-glycoside-induced-premature-ovarian-failure
#3
Xiaofeng Xu, Yong Tan, Guorong Jiang, Xuanyi Chen, Rensheng Lai, Lurong Zhang, Guoqiang Liang
BACKGROUND: Bushen Tianjing Recipe (BTR) is a traditional Chinese herbal medicine that has been prescribed for premature ovarian failure (POF) for decades in China. Nevertheless, little is known regarding its underlying molecular mechanism. In the present study, we investigated the effects of BTR in a tripterygium glycoside (TG)-induced-POF rat model. METHODS: Three doses of BTR were administered via intragastric gavage to adult female Sprague-Dawley (SD) rats with TG-induced POF...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28438065/reduced-expression-of-eukaryotic-translation-initiation-factor-3-subunit-e-and-its-possible-involvement-in-the-epithelial-mesenchymal-transition-in-endometriosis
#4
Xianjun Cai, Minhong Shen, Xishi Liu, Sun-Wei Guo
Epithelial-mesenchymal transition (EMT) is now well documented to be involved in the development of endometriosis through the promotion of invasion and fibrogenesis. To date, several factors have been reported to be involved in EMT in endometriosis. The eukaryotic translation initiation factor 3 subunit e (eIF3e) protein is a component of the multisubunit eIF3 complex essential for cap-dependent translation initiation. The aim of this study was to investigate whether eIF3e is involved in EMT in endometriosis...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28432432/tgf%C3%AE-splicing-and-canonical-pathway-activation-in-high-grade-serous-carcinoma
#5
Neriya Gutgold, Ben Davidson, Liora Jacobs Catane, Arild Holth, Ellen Hellesylt, Claes G Tropé, Anne Dørum, Reuven Reich
The present study analyzed the expression and clinical role of the transforming growth factor-β (TGFβ) pathway in high-grade serous carcinoma (HGSC), with focus on malignant effusions. TGFβ1-3 and TGFβRI-III mRNA expression by qRT-PCR was analyzed in 70 HGSC effusions and 55 solid specimens (28 ovarian, 27 abdominal metastases). Protein expression of Smad2 and Smad3 and their phosphorylated forms by Western blotting was analyzed in 73 specimens (42 effusions, 13 ovarian carcinomas, 18 solid metastases)...
April 21, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28427560/stress-adaptive-response-in-ovarian-cancer-drug-resistance-role-of-trap1-in-oxidative-metabolism-driven-inflammation
#6
Maria Rosaria Amoroso, Danilo Swann Matassa, Ilenia Agliarulo, Rosario Avolio, Francesca Maddalena, Valentina Condelli, Matteo Landriscina, Franca Esposito
Metabolic reprogramming is one of the most frequent stress-adaptive response of cancer cells to survive environmental changes and meet increasing nutrient requirements during their growth. These modifications involve cellular bioenergetics and cross talk with surrounding microenvironment, in a dynamic network that connect different molecular processes, such as energy production, inflammatory response, and drug resistance. Even though the Warburg effect has long been considered the main metabolic feature of cancer cells, recent reports identify mitochondrial oxidative metabolism as a driving force for tumor growth in an increasing number of cellular contexts...
2017: Advances in Protein Chemistry and Structural Biology
https://www.readbyqxmd.com/read/28427157/the-anti-tumor-efficacy-of-3c23k-a-glyco-engineered-humanized-anti-misrii-antibody-in-an-ovarian-cancer-model-is-mainly-mediated-by-engagement-of-immune-effector-cells
#7
Pauline Estupina, Alexandre Fontayne, Jean-Marc Barret, Nathalie Kersual, Olivier Dubreuil, Marion Le Blay, Alexandre Pichard, Marta Jarlier, Martine Pugnière, Maëva Chauvin, Thierry Chardès, Jean-Pierre Pouget, Emmanuel Deshayes, Alexis Rossignol, Toufik Abache, Christophe de Romeuf, Aurélie Terrier, Lucie Verhaeghe, Christine Gaucher, Jean-François Prost, André Pèlegrin, Isabelle Navarro-Teulon
Ovarian cancer is the leading cause of death in women with gynecological cancers and despite recent advances, new and more efficient therapies are crucially needed. Müllerian Inhibiting Substance type II Receptor (MISRII, also named AMHRII) is expressed in most ovarian cancer subtypes and is a novel potential target for ovarian cancer immunotherapy. We previously developed and tested 12G4, the first murine monoclonal antibody (MAb) against human MISRII. Here, we report the humanization, affinity maturation and glyco-engineering steps of 12G4 to generate the Fc-optimized 3C23K MAb, and the evaluation of its in vivo anti-tumor activity...
February 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28427047/co-activation-of-tgf%C3%AE-and-wnt-signalling-pathways-abrogates-emt-in-ovarian-cancer-cells
#8
Tulika Mitra, Sib Sankar Roy
BACKGROUND/AIMS: The aggressive property of ovarian cancer (OC) in terms of epithelial-mesenchymal transition (EMT), proliferation and metastasis are of major concern. Different growth factors including TGFβ are associated with regulating these molecular events but the underlying mechanisms remain unclear. The aim of this report is to decipher the regulation of EMT by co-activation of TGFβ and Wnt signalling cascades in gaining malignancy. METHODS: The expression of the different components of signalling events were analyzed by QPCR, Western blot, Immunofluorescence microscopy and flow cytometry...
March 9, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28423672/%C3%AE-2-3-sialyltransferase-type-i-regulates-migration-and-peritoneal-dissemination-of-ovarian-cancer-cells
#9
Kuo-Chang Wen, Pi-Lin Sung, Shie-Liang Hsieh, Yu-Ting Chou, Oscar Kuang-Sheng Lee, Cheng-Wen Wu, Peng-Hui Wang
Epithelial ovarian cancer (EOC) has the highest mortality rate among gynecologic cancers due to advanced stage presentation, peritoneal dissemination, and refractory ascites at diagnosis. We investigated the role of α2,3-sialyltransferase type I (ST3GalI) by analyzing human ovarian cancer datasets and human EOC tissue arrays. We found that high expression of ST3GalI was associated with advanced stage EOC. Transwell migration and cell invasion assays showed that high ST3GalI expression enhanced migration of EOC cells...
March 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420820/high-insulin-impaired-ovarian-function-in-early-pregnant-mice-and-the-role-of-autophagy-in-this-process
#10
Yan Su, Juan Wu, Junlin He, Xueqing Liu, Xuemei Chen, Yubin Ding, Chen Zhang, Wenqi Chen, Yingxiong Wang, Rufei Gao
Metabolic disorders, such as PCOS (polycystic ovarian syndrome) and T2DM (type 2 diabetes mellitus), are associated with menstrual dysfunction, anovulation, infertility, and early pregnancy loss. Ovarian dysfunction is not only related to low pregnancy rates but also to the increased risk of miscarriage. Women with PCOS or T2DM, characterized by hyperinsulinemia, commonly experience ovarian dysfunction. In this study, we first explored whether high insulin levels directly affected ovarian functioning during embryo implantation...
April 18, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28417351/detrimental-effect-of-maternal-and-post-weaning-high-fat-diet-on-the-reproductive-function-in-the-adult-female-offspring-rat-roles-of-insulin-like-growth-factor-2-and-the-ovarian-circadian-clock
#11
Yu-Ju Lin, Ching-Chou Tsai, Li-Tung Huang, Jiunn-Ming Sheen, Mao-Meng Tiao, Hong-Ren Yu, Chih-Cheng Chen, You-Lin Tain
PURPOSE: We evaluate the impact of maternal and post-weaning high-fat (HF) diet on ovarian follicular population, steroidogenesis, and gene expression with a focus on the circadian clock system and insulin-like growth factor 2 (Igf2) in adult offspring ovaries, and to elucidate whether a maternal and post-weaning diet confers similar risks. METHODS: Virgin Sprague-Dawley rats were fed with normal chow (C) diet or HF diet for 5 weeks before mating, during gestation, and lactation...
April 17, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28416604/oncogenic-characterization-and-pharmacologic-sensitivity-of-activating-fibroblast-growth-factor-receptor-fgfr-genetic-alterations-to-the-selective-fgfr-inhibitor-erdafitinib
#12
Jayaprakash D Karkera, Gabriela Martinez Cardona, Katherine Bell, Dana Gaffney, Joseph C Portale, Ademi Santiago-Walker, Christopher Moy, Peter King, Michael Sharp, Rastilav Bahleda, Feng R Luo, John D Alvarez, Matthew V Lorenzi, Suso J Platero
Fibroblast growth factor receptor (FGFR) genetic alterations are frequently observed in cancer, suggesting that FGFR inhibition may be a promising therapy in patients harboring these lesions.  Identification of predictive and pharmacodynamic biomarkers to select and monitor patients most likely to respond to FGFR inhibition will be the key to clinical development of this class of agents.  Sensitivity to FGFR inhibition and correlation with FGFR pathway activation status were determined in molecularly annotated panels of cancer cell lines and xenograft models...
April 17, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28414979/role-of-egf-on-in-situ-culture-of-equine-preantral-follicles-and-metabolomics-profile
#13
F L N Aguiar, F O Lunardi, L F Lima, J B Bruno, B G Alves, D M Magalhães-Padilha, F W S Cibin, L Berioni, G A Apgar, E G Lo Turco, E L Gastal, J R Figueiredo
The effects of epidermal growth factor (EGF) concentrations (0, 10, 50, and 100ng/ml) on in vitro culture (IVC) of equine preantral follicles were evaluated using histology, estradiol and reactive oxygen species (ROS) production and metabolomics. After IVC, the percentage of normal follicles was lower (P<0.05) for all treatments when compared to non-cultured control. EGF 50ng/ml treatment had more (P<0.05) normal follicles at Day 7 of culture when compared with EGF 0 and 100ng/ml. EGF 50ng/ml had more (P<0...
April 8, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28412388/prolactin-modulates-luteal-activity-in-the-short-nosed-fruit-bat-cynopterus-sphinx-during-delayed-embryonic-development
#14
Anuradha, Amitabh Krishna
The aim of this study was to evaluate the role of prolactin as a modulator of luteal steroidogenesis during the period of delayed embryonic development in Cynopterus sphinx. A marked decline in circulating prolactin levels was noted during the months of November through December coinciding with the period of decreased serum progesterone and delayed embryonic development. The seasonal changes in serum prolactin levels correlated positively with circulating progesterone (P) level, but inversely with circulating melatonin level during first pregnancy showing delayed development in Cynopterus sphinx...
April 13, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28409700/high-yield-of-biologically-active-recombinant-human-fibroblast-growth-factor-16-in-e-coli-and-its-mechanism-of-proliferation-in-ncl-h460-cells
#15
Jiliang Cheng, Zhaoxiang Fang, Huanhuan Yang, Yong Li, Haishan Tian, Weiyue Gong, Taotao Chen, Min Liu, Xiaokun Li, Chao Jiang
Fibroblast growth factor-16 (FGF16) is a member of FGF9 subfamily, which plays key roles in promoting mitosis and cell survival, and also involved in embryonic development, cell growth, tissue repair, morphogenesis, tumor growth and invasion. However, the successful high-yield purification of recombinant human FGF16 (rhFGF16) protein has not been reported. In addition, lung cancer is a major cause of cancer-related deaths, which threats people's lives and its incidence has continued to rise. Learning pathways or proteins, which involved in lung tumor progression will contribute to the development of early diagnosis and targeted therapy...
April 14, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28409689/effects-of-methoxychlor-on-igf-i-signaling-pathway-in-rat-ovary
#16
O Ozden-Akkaya, K Altunbas, A Yagcı
Follicular development and other ovarian functions are regulated by growth factors that can be affected by exogenous agents. Methoxychlor (MXC) is an organochloride pesticide that causes female infertility. We investigated how MXC affects the distribution of developing ovarian follicles in adult rats after treatment between embryonic day (E) 18 and postnatal day (PND) 7. We also measured insulin-like growth factor-I (IGF-I) and its receptor, IGF-IR, expressions in ovarian follicles and investigated whether MXC changed the levels of IGF-I and IGF-IR in the ovary...
2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28407051/igf1r-expression-in-ovarian-granulosa-cells-is-essential-for-steroidogenesis-follicle-survival-and-fertility-in-female-mice
#17
Sarah C Baumgarten, Marah Armouti, CheMyong Ko, Carlos Stocco
Folliculogenesis is a lengthy process that requires the proliferation and differentiation of granulosa cells (GCs) for preovulatory follicle formation. The most crucial endocrine factor involved in this process is follicle-stimulating hormone (FSH). Interestingly, previous in vitro studies indicated that FSH fails to stimulate GC proliferation in the absence of the insulin-like growth factor 1 receptor (IGF1R). To determine the role of the IGF1R in vivo, female mice with a conditional knockdown of the IGF1R in the GCs were produced and had undetectable levels of IGF1R mRNA and protein in the GCs...
April 12, 2017: Endocrinology
https://www.readbyqxmd.com/read/28404605/proteomics-analysis-identifies-orthologs-of-human-chitinase-like-proteins-as-inducers-of-tube-morphogenesis-defects-in-drosophila
#18
Sandra G Zimmerman, Gennifer E Merrihew, Michael J MacCoss, Celeste A Berg
Elevated levels of human chitinase-like proteins (CLPs) are associated with numerous chronic inflammatory diseases and several cancers, often correlating with poor prognosis. Nevertheless, there is scant knowledge of their function. The CLPs normally mediate immune responses and wound healing, and when upregulated, they can promote disease progression by remodeling tissue, activating signaling cascades, stimulating proliferation and migration, and by regulating adhesion. We identified Imaginal disc growth factors (Idgfs), orthologs of human CLPs CHI3L1, CHI3L2, and OVGP1, in a proteomics analysis designed to discover factors that regulate tube morphogenesis in a Drosophila melanogaster model of tube formation...
April 12, 2017: Genetics
https://www.readbyqxmd.com/read/28403961/vascular-endothelial-growth-factor-antagonist-reduces-the-early-onset-and-the-severity-of-ovarian-hyperstimulation-syndrome
#19
S Jellad, A Haj Hassine, M Basly, A Mrabet, M Chibani, R Rachdi
BACKGROUND: Ovarian hyperstimulation syndrome (OHSS) is the most serious complication of controlled ovarian stimulation (COH) during assisted reproductive technology (ART) protocols. This syndrome is a result of ovarian expression of vascular endothelial growth factor (VEGF), which increases vascular permeability. OBJECTIVES: To evaluate the efficiency of prophylactic and therapeutic use of cabergoline in women with higher risk of developing OHSS. MATERIALS AND METHODS: In this prospective randomized study, 146 women undergoing in vitro fertilization (IVF) cycles with GnRH agonist protocols with a higher risk of OHSS diagnosed during the HCG day administration (more than 18 follicles observed larger than 12mm in diameter during COH and/or estradiol levels of 3000-3500pg/ml, previous episodes of OHSS)...
January 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28402062/responsiveness-of-intraovarian-dog-follicles-in-vitro-to-epidermal-growth-factor-and-vascular-endothelial-growth-factor-depends-on-ovarian-donor-age
#20
C Thongkittidilok, D E Wildt, N Songsasen
We investigated the influence of epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF) on in vitro follicle development within ovarian cortices recovered from pre-pubertal (≤6 months) versus peri-pubertal dogs (≥10 months). Ovarian cortices were cultured for 3 or 7 days in EGF (0 or 10 ng/ml) and VEGF (0, 0.1 or 1 ng/ml) and subjected to histological and apoptosis analyses. Fresh cortices from the same dogs served as "non-cultured controls" (NCC) and were evaluated similarly. The response of ovarian follicles to growth factors differed between pre-pubertal versus peri-pubertal tissues...
April 2017: Reproduction in Domestic Animals, Zuchthygiene
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