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https://www.readbyqxmd.com/read/29467390/fgf1-induces-resistance-to-chemotherapy-in-ovarian-granulosa-tumor-cells-through-regulation-of-p53-mitochondrial-localization
#1
Sevasti Manousakidi, Arnaud Guillaume, Caroline Pirou, Sylvina Bouleau, Bernard Mignotte, Flore Renaud, Nathalie Le Floch
Ovarian cancer remains associated with a high mortality rate and relapse is too frequently seen after chemotherapeutic treatment of granulosa cell tumors (GCTs) or epithelial ovarian cancers (EOCs). It is thus of major importance to progress in the knowledge of the molecular mechanisms underlying chemoresistance of ovarian tumors. Overexpression of Fibroblast Growth Factor 1 (FGF1) is observed in various cancers, correlates with poor survival and could be responsible for resistance to platinum-based chemotherapy of serous ovarian cancers...
February 21, 2018: Oncogenesis
https://www.readbyqxmd.com/read/29446010/phosphaturic-mesenchymal-tumors-what-an-endocrinologist-should-know
#2
REVIEW
J M Boland, P J Tebben, A L Folpe
Tumor-induced osteomalacia (TIO), also known as "oncogenic osteomalacia", is a rare cause of osteomalacia. TIO often has an insidious onset characterized clinically by progressive muscle weakness and bone pain with fractures. The hallmark biochemical finding is a persistent low serum phosphorus concentration due to renal phosphate wasting. The vast majority of cases of TIO result from production of the phosphaturic hormone fibroblast growth factor 23 (FGF23) by a histologically distinctive mesenchymal tumor, termed "phosphaturic mesenchymal tumor" (PMT)...
February 14, 2018: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29371290/the-phosphatase-ptprg-controls-fgfr1-activity-and-influences-sensitivity-to-fgfr-kinase-inhibitors
#3
Michal Kostas, Ellen Margrethe Haugsten, Yan Zhen, Vigdis Sorensen, Patrycja Szybowska, Elisa Fiorito, Susanne Lorenz, Gustavo Antonio de Souza, Antoni Wiedlocha, Jørgen Wesche
Recently, FGFR1 was found to be overexpressed in osteosarcoma and represents an important target for precision medicine. However, because targeted cancer therapy based on FGFR inhibitors has so far been less efficient than expected, a detailed understanding of the target is important. We have here applied proximity-dependent biotin labeling combined with label-free quantitative mass spectrometry to identify determinants of FGFR1 activity in an osteosarcoma cell line. Many known FGFR interactors were identified (e...
January 25, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29304116/the-sorafenib-anti-relapse-effect-after-allohsct-is-associated-with-heightened-alloreactivity-and-accumulation-of-cd8-pd-1-cd279-lymphocytes-in-marrow
#4
Andrzej Lange, Emilia Jaskula, Janusz Lange, Grzegorz Dworacki, Dorota Nowak, Aleksandra Simiczyjew, Monika Mordak-Domagala, Mariola Sedzimirska
We studied three FLT3 ITD acute myeloid leukemia (AML) patients who relapsed after allogeneic haematopoietic stem cell transplantation (alloHSCT) and received multikinase inhibitor (MKI) sorafenib as part of salvage therapy. MKI was given to block the effect of FLT3 ITD mutation which powers proliferation of blast cells. However, the known facts that sorafenib is more effective in patents post alloHSCT suggested that this MKI can augment the immune system surveillance on leukaemia. In the present study, we investigated in depth the effect of sorafenib on the alloreactivity seen post-transplant including that on leukaemia...
2018: PloS One
https://www.readbyqxmd.com/read/29281903/assessment-of-fgfr1-overexpression-and-over-activity-in-lung-cancer-cells-a-toolkit-for-anti-fgfr1-drug-screening
#5
Penghui Hu, Hongjie Chen, Eileen McGowan, Nina Ren, Ming Xu, Yiguang Lin
Lung cancer, mainly caused by smoking, is one of the most prevalent diseases in China resulting in high mortality rates. The increasing incidence of chronic disease due to lung cancer places a huge burden on the welfare and cost to the Chinese society. Amplification of the fibroblast growth factor receptor 1 (FGFR1) is associated with high incidence and mortality in lung cancer patients. FGFR1 signaling is implicated in oncogenic traits such as proliferation, cell survival, angiogenesis and migration. Targeting the FGFR1 and its ligand basic FGF (bFGF) is a key step forward in developing new therapies for this crippling disease...
December 27, 2017: Human Gene Therapy Methods
https://www.readbyqxmd.com/read/29235576/the-unfolded-protein-response-impacts-melanoma-progression-by-enhancing-fgf-expression-and-can-be-antagonized-by-a-chemical-chaperone
#6
Karin Eigner, Yüksel Filik, Florian Mark, Birgit Schütz, Günter Klambauer, Richard Moriggl, Markus Hengstschläger, Herbert Stangl, Mario Mikula, Clemens Röhrl
The mechanisms hallmarking melanoma progression are insufficiently understood. Here we studied the impact of the unfolded protein response (UPR) - a signalling cascade playing ambiguous roles in carcinogenesis - in melanoma malignancy. We identified isogenic patient-derived melanoma cell lines harboring BRAFV600E-mutations as a model system to study the role of intrinsic UPR in melanoma progression. We show that the activity of the three effector pathways of the UPR (ATF6, PERK and IRE1) was increased in metastatic compared to non-metastatic cells...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29133075/spinal-cord-self-repair-during-tail-regeneration-in-polypedates-maculatus-and-putative-role-of-fgf1-as-a-neurotrophic-factor
#7
Jutshina Hota, Sushri Sangita Pati, Pravati Kumari Mahapatra
Spinal cord injury could be fatal in man and often results in irreversible medical conditions affecting mobility. However, anuran amphibians win over such pathological condition by the virtue of regeneration abilities. The tail of anuran tadpoles therefore allures researchers to study spinal cord injury and self- repair process. In the present study, we inflicted injury to the spinal cord by means of surgical transection of the tail and investigated the self-repair activity in the tadpoles of the Indian tree frog Polypedates maculatus...
November 10, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/29128220/identification-of-potential-embryokines-in-the-bovine-reproductive-tract
#8
P Tríbulo, L G B Siqueira, L J Oliveira, T Scheffler, P J Hansen
Knowledge of the molecules used by the maternal reproductive tract to regulate development of the preimplantation embryo is largely incomplete. The goal of the present experiment was to identify candidates for this function. The approach was to assess expression patterns in the endometrium and oviduct of 93 genes encoding for hormones, growth factors, chemokines, cytokines, and WNT-related molecules. Results show that all of the genes were expressed in the reproductive tract. Expression in oviduct was affected by day of the estrous cycle for 21 genes with 11 genes having highest expression at estrus (CCL21, CTGF, CXCL10, CXCL16, DKK3, FGF10, IL18, IL33, IL34, PGF, and SFRP2), one gene at d 3 (WNT4), 8 at d 5 (BMP7, HGF, IL6, SFRP1, TGFB1, WIF1, WNT2, and WNT5A), and one at d 7 (IK)...
November 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29117903/histopathological-and-immunohistochemical-analysis-of-the-use-of-collagen-dressing-as-a-reinforcement-of-esophagic-anastomosis-in-a-rat-experimental-model
#9
Rocio Garcia-Perez, Vicente Munitiz, Carlos Manuel Martinez-Caceres, David Ruiz de Angulo, Angeles Ortiz, Luisa F Martinez de Haro, Diana Navas, Pascual Parrilla
INTRODUCTION: One of the most severe complications after esophaguectomy is anastomotic dehiscence. The use of collagen sponges could be an effective way to resolve this complication. Our objective was to perform an experimental model of esophageal anastomosis in rats to study these mechanisms. METHODS: A total of 50 Sprague-Dawley rats were used divided into 2 groups, Tachosil(®) group (n=25) and control group (n=25). After the section of the abdominal esophagus a single-layer esophago-gastric anastomosis was performed reinforced with 1cm of Tachosil(®) wrapping the anastomosis in group 1...
November 5, 2017: Cirugía Española
https://www.readbyqxmd.com/read/29091276/simple-and-efficient-purification-of-recombinant-proteins-using-the-heparin-binding-affinity-tag
#10
Srinivas Jayanthi, Ravi Kumar Gundampati, Thallapuranam Krishnaswamy Suresh Kumar
Heparin, a member of the glycosaminoglycan family, is known to interact with more than 400 different types of proteins. For the past few decades, significant progress has been made to understand the molecular details involved in heparin-protein interactions. Based on the structural knowledge available from the FGF1-heparin interaction studies, we have designed a novel heparin-binding peptide (HBP) affinity tag that can be used for the simple, efficient, and cost-effective purification of recombinant proteins of interest...
November 1, 2017: Current Protocols in Protein Science
https://www.readbyqxmd.com/read/29048426/fgf1-protects-neuroblastoma-sh-sy5y-cells-from-p53-dependent-apoptosis-through-an-intracrine-pathway-regulated-by-fgf1-phosphorylation
#11
Caroline Pirou, Fatemeh Montazer-Torbati, Nadège Jah, Elisabeth Delmas, Christelle Lasbleiz, Bernard Mignotte, Flore Renaud
Neuroblastoma, a sympathetic nervous system tumor, accounts for 15% of cancer deaths in children. In contrast to most human tumors, p53 is rarely mutated in human primary neuroblastoma, suggesting impaired p53 activation in neuroblastoma. Various studies have shown correlations between fgf1 expression levels and both prognosis severity and tumor chemoresistance. As we previously showed that fibroblast growth factor 1 (FGF1) inhibited p53-dependent apoptosis in neuron-like PC12 cells, we initiated the study of the interaction between the FGF1 and p53 pathways in neuroblastoma...
August 31, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29017078/fgf1-and-igf1-conditioned-3d-culture-system-promoted-the-amplification-and-cancer-stemness-of-lung-cancer-cells
#12
Pengpeng Liu, Rui Zhang, Wenwen Yu, Yingnan Ye, Yanan Cheng, Lei Han, Li Dong, Yongzi Chen, Xiyin Wei, Jinpu Yu
Lung cancer stem cells (LCSCs) are considered as the cellular origins of metastasis and relapse of lung cancer. However, routine two-dimensional culture system (2D-culture) hardly mimics the growth and functions of LCSCs in vivo and therefore significantly decreases the stemness activity of LCSCs. In this study, we constructed a special BME-based three-dimensional culture system (3D-culture) to amplify LCSCs in human lung adenocarcinoma cell line A549 cells and found 3D-culture promoted the enrichment and amplification of LCSCs in A549 cells displaying higher proliferation potential and invasion activity, but lower apoptosis...
September 28, 2017: Biomaterials
https://www.readbyqxmd.com/read/29016740/a-novel-fibroblast-growth-factor-1-ligand-with-reduced-heparin-binding-protects-the-heart-against-ischemia-reperfusion-injury-in-the-presence-of-heparin-co-administration
#13
Chahua Huang, Yang Liu, Andrew Beenken, Lin Jiang, Xiang Gao, Zhifeng Huang, Anna Hsu, Garrett J Gross, Yi-Gang Wang, Moosa Mohammadi, Jo El J Schultz
Aims: Fibroblast growth factor 1 (FGF1), a heparin/heparan sulfate-binding growth factor, is a potent cardioprotective agent against myocardial infarction (MI). The impact of heparin, the standard of care for MI patients entering the emergency room, on cardioprotective effects of FGF1 is unknown, however. Methods and results: To address this, a rat model of MI was employed to compare cardioprotective potentials (lower infarct size and improve post-ischemic function) of native FGF1 and an engineered FGF1 (FGF1ΔHBS) with reduced heparin-binding affinity when given at the onset of reperfusion in the absence or presence of heparin...
November 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28949091/new-approach-for-the-treatment-of-neuropathic-pain-fibroblast-growth-factor-1-gene-transfected-adipose-derived-mesenchymal-stem-cells
#14
F Forouzanfar, B Amin, A Ghorbani, H Ghazavi, F Ghasemi, K Sadri, S Mehri, H R Sadeghnia, H Hosseinzadeh
BACKGROUND: Neuropathic pain triggered by peripheral nerve lesion is extremely difficult to manage with current approaches, hence the importance of exploring therapeutic alternatives. METHODS: We have analysed adipose-derived mesenchymal stem cells (AD-MSCs) and fibroblast growth factor 1 gene-transfected adipose-derived mesenchymal stem cells (AD-MSCs FGF1 ) on chronic constriction injury (CCI). The mechanical and thermal hypersensitivity were assessed using the von Frey filament, radiant heat and acetone drop tests...
February 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28947720/identification-of-genes-involved-in-cold-shock-response-in-rainbow-trout-oncorhynchus-mykiss
#15
Andreas Borchel, Marieke Verleih, Alexander Rebl, Tom Goldammer
A rapid decline in temperature poses a major challenge for poikilothermic fish, as their entire metabolism depends on ambient temperature. The gene expression of rainbow trout Oncorhynchus mykiss having undergone such a cold shock (0◦C) was compared to a control (5◦C) in a microarray and quantitative real-time PCR based study. The tissues of gill, kidney and liver were examined. The most differently expressed genes were found in liver, many of them contributing to the network 'cellular compromise, cellular growth and proliferation'...
September 2017: Journal of Genetics
https://www.readbyqxmd.com/read/28941572/effects-of-neural-stem-cell-media-on-hypoxic-injury-in-rat-hippocampal-slice-cultures
#16
Na Mi Lee, Soo Ahn Chae, Hong Jun Lee
Neonatal hypoxic-ischemic brain injuries cause serious neurological sequelae, yet there is currently no effective treatment for them. We hypothesized that neurotrophic factors released into the medium by stem cells could supply hypoxia-damaged organotypic hippocampal slice cultures with regenerative abilities. We prepared organotypic slice cultures of the hippocampus of 7-day-old Sprague-Dawley rats based on the modified Stoppini method; slices were cultured for 14days in vitro using either Gahwiler's medium (G-medium) or stem cell-conditioned medium (S-medium) as culture medium...
December 15, 2017: Brain Research
https://www.readbyqxmd.com/read/28922558/biomechanical-properties-and-healing-effects-of-chitin-patch-in-a-rat-full-thickness-abdominal-wall-defect-model
#17
Jing Qiao, Zhiwen Jiang, Xuyue Liang, Yan Yang, Wanshun Liu, Baoqin Han
Hernia repair is usually accompanied with the implantation of a synthetic mesh, which frequently results in a foreign body response and serious complications. In the present study, a novel biodegradable chitin-based hernia patch was prepared and characterized. Biomechanical properties and biodegradability of the chitin patch were quantified in vitro and in vivo. In repair of the rat abdominal wall full-thickness defect model, the chitin patch induced more abundant new blood vessels with milder tissue inflammation and fibrosis compared with polypropylene mesh...
September 18, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28881626/relevance-of-ccl3-ccr5-axis-in-oral-carcinogenesis
#18
Janine Mayra da Silva, Tálita Pollyanna Moreira Dos Santos, Lays Martin Sobral, Celso Martins Queiroz-Junior, Milene Alvarenga Rachid, Amanda E I Proudfoot, Gustavo Pompermaier Garlet, Aline Carvalho Batista, Mauro Martins Teixeira, Andréia Machado Leopoldino, Remo Castro Russo, Tarcília Aparecida Silva
The chemokine CCL3 is a chemotactic cytokine crucial for inflammatory cell recruitment in homeostatic and pathological conditions. CCL3 might stimulate cancer progression by promoting leukocyte accumulation, angiogenesis and tumour growth. The expression of CCL3 and its receptors CCR1 and CCR5 was demonstrated in oral squamous cell carcinoma (OSCC), but their role was not defined. Here, the functions of CCL3 were assessed using a model of chemically induced tongue carcinogenesis with 4-nitroquinoline-1-oxide (4NQO)...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28813681/uncoupling-the-mitogenic-and-metabolic-functions-of-fgf1-by-tuning-fgf1-fgf-receptor-dimer-stability
#19
Zhifeng Huang, Yi Tan, Junlian Gu, Yang Liu, Lintao Song, Jianlou Niu, Longwei Zhao, Lakshmi Srinivasan, Qian Lin, Jingjing Deng, Yang Li, Daniel J Conklin, Thomas A Neubert, Lu Cai, Xiaokun Li, Moosa Mohammadi
The recent discovery of metabolic roles for fibroblast growth factor 1 (FGF1) in glucose homeostasis has expanded the functions of this classically known mitogen. To dissect the molecular basis for this functional pleiotropy, we engineered an FGF1 partial agonist carrying triple mutations (FGF1(ΔHBS)) that diminished its ability to induce heparan sulfate (HS)-assisted FGF receptor (FGFR) dimerization and activation. FGF1(ΔHBS) exhibited a severely reduced proliferative potential, while preserving the full metabolic activity of wild-type FGF1 in vitro and in vivo...
August 15, 2017: Cell Reports
https://www.readbyqxmd.com/read/28795363/fibroblast-growth-factor-type-1-fgf1-overexpressed-adipose-derived-mesenchaymal-stem-cells-ad-msc-fgf1-induce-neuroprotection-and-functional-recovery-in-a-rat-stroke-model
#20
Hamed Ghazavi, Seyed Javad Hoseini, Alireza Ebrahimzadeh-Bideskan, Baratali Mashkani, Soghra Mehri, Ahmad Ghorbani, Kayvan Sadri, Elahe Mahdipour, Faezeh Ghasemi, Fatemeh Forouzanfar, Azar Hoseini, Ali Reza Pasdar, Hamid Reza Sadeghnia, Majid Ghayour-Mobarhan
Stroke, as the second most common cause of death, imposes a great financial burden on both the individual and society. Mesenchymal stem cells from rodents have demonstrated efficacy in experimental animal models of stroke due to enhanced neurological recovery. Since FGF1 (fibroblast growth factor 1) displays neuroprotective properties, for the first time, we investigated the effect of acute intravenous administration of FGF1 gene transfected adipose-derived mesenchymal stem cell (AD-MSC(FGF1)) on transient experimental ischemic stroke in rats...
October 2017: Stem Cell Reviews
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