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https://www.readbyqxmd.com/read/28213656/dual-functional-microrna-186-5p-targets-both-fgf2-and-rela-to-suppress-tumorigenesis-of-glioblastoma-multiforme
#1
Fachen Wang, Hui Jiang, Shanjun Wang, Bing Chen
Glioblastoma multiforme (GBM) is one of the most malignant cancers. MicroRNAs (miRs) were reported to play important roles in GBM recently. However, the role of a novel miR-186-5p in GBM tumorigenesis is still elusive. Using bioinformatics, miR-186-5p was identified as potential regulators of both fibroblast growth factor (FGF)-2 and NF-κB subunit RelA. Luciferase reporter assay was used to confirm the direct recognition FGF2 and RelA mRNAs by miR-186-5p. Invasion and migration assays were employed to study the effect of miR-186-5p on GBM cell growth in vitro...
February 17, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28212293/targeting-angiogenesis-in-biliary-tract-cancers-an-open-option
#2
REVIEW
Valeria Simone, Oronzo Brunetti, Luigi Lupo, Mario Testini, Eugenio Maiorano, Michele Simone, Vito Longo, Christian Rolfo, Marc Peeters, Aldo Scarpa, Amalia Azzariti, Antonio Russo, Domenico Ribatti, Nicola Silvestris
Biliary tract cancers (BTCs) are characterized by a bad prognosis and the armamentarium of drugs for their treatment is very poor. Although the inflammatory status of biliary tract represents the first step in the cancerogenesis, the microenvironment also plays a key role in the pathogenesis of BTCs, promoting tumor angiogenesis, invasion and metastasis. Several molecules, such as vascular endothelial growth factor (VEGF) and fibroblast growth factor (FGF), are involved in the angiogenesis process and their expression on tumor samples has been explored as prognostic marker in both cholangiocarcinoma and gallbladder cancer...
February 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28211013/electrostatic-forces-as-dominant-interactions-between-proteins-and-polyanions-an-esi-ms-study-of-fibroblast-growth-factor-binding-to-heparin-oligomers
#3
Burcu Baykal Minsky, Paul L Dubin, Igor A Kaltashov
The interactions between fibroblast growth factors (FGFs) and their receptors (FGFRs) are facilitated by heparan sulfate (HS) and heparin (Hp), highly sulfated biological polyelectrolytes. The molecular basis of FGF interactions with these polyelectrolytes is highly complex due to the structural heterogeneity of HS/Hp, and many details still remain elusive, especially the significance of charge density and minimal chain length of HS/Hp in growth factor recognition and multimerization. In this work, we use electrospray ionization mass spectrometry (ESI MS) to investigate the association of relatively homogeneous oligoheparins (octamer, dp8, and decamer, dp10) with acidic fibroblast growth factor (FGF-1)...
February 16, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28209294/sulfated-glycosaminoglycans-and-non-classically-secreted-proteins-basic-fgf-and-epimorphin-coordinately-regulate-tgf-%C3%AE-induced-cell-behaviors-of-human-scar-dermal-fibroblasts
#4
Tomoatsu Horigome, Shinya Takumi, Kota Shirai, Takumi Kido, Natsumi Hagiwara-Chatani, Ayumi Nakashima, Naoki Adachi, Hiroko Yano, Yohei Hirai
BACKGROUND: Upon skin injuries, dermal fibroblasts actively produce transforming growth factor-β (TGF-β), which leads to the formation of α-smooth muscle actin (αSMA)-positive granulation tissues. The hyperplasia or incomplete regression of these tissues subsequently causes scar formation in the skin, where sulfated glycosaminoglycans (GAGs), side chains of unique proteoglycans, are supposed to play important roles. OBJECTIVE: The aim of this study is to clarify the effects of sulfated GAGs on dermal cell behaviors triggered by the TGF-β signaling, along with its possible regulators basic fibroblast growth factor (bFGF) and cell surface epimorphin...
February 3, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28209092/fibroblast-growth-factor-1-fgf-1-promotes-adipogenesis-by-downregulation-of-carboxypeptidase-a4-cpa4-a-negative-regulator-of-adipogenesis-implicated-in-the-modulation-of-local-and-systemic-insulin-sensitivity
#5
Jingjing He, Daniel L Chen, Dorit Samocha-Bonet, Kevin R Gillinder, Johanna L Barclay, Graham W Magor, Andrew C Perkins, Jerry R Greenfield, Gongshe Yang, Jonathan P Whitehead
Fibroblast growth factor-1 (FGF-1) promotes differentiation of human preadipocytes into mature adipocytes via modulation of a BMP and Activin Membrane-Bound Inhibitor (BAMBI)/Peroxisome proliferator-activated receptor (PPARγ)-dependent network. Here, we combined transcriptomic and functional investigations to identify novel downstream effectors aligned with complementary analyses of gene expression in human adipose tissue to explore relationships with insulin sensitivity. RNA-Seq and qRT-PCR analysis revealed significant down-regulation of carboxypeptidase A4 (CPA4) following FGF-1 treatment or induction of differentiation of human preadipocytes in a BAMBI/PPARγ-independent manner...
December 2016: Growth Factors
https://www.readbyqxmd.com/read/28207939/chemokine-in-inflamed-periodontal-tissues-activates-healthy-periodontal-ligament-stem-cell-migration
#6
Jung-Seok Lee, Jong-Bin Lee, Jae-Kook Cha, Eun-Young Choi, So-Yon Park, Kyoo-Sung Cho, Chang-Sung Kim
AIM: The present study aimed to characterize the expression pattern of chemokines obtained from inflamed periodontal defects and to determine the characteristics of human periodontal-ligament stem cells (hPDLSCs) migrated by each specific chemokine. MATERIALS AND METHODS: Both inflamed and healthy periodontal tissues were obtained from periodontitis patients (n=11), and the chemokine expression levels were analyzed. The periodontal-tissue-specific chemokines were applied to healthy hPDLSCs from extracted teeth (n=3), with FGF-2 acting as a positive control...
February 16, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28205415/microfluidic-screening-reveals-heparan-sulfate-enhances-human-mesenchymal-stem-cell-growth-by-modulating-fibroblast-growth-factor-2-transport
#7
Drew M Titmarsh, Clarissa L L Tan, Nick R Glass, Victor Nurcombe, Justin J Cooper-White, Simon M Cool
Cost-effective expansion of human mesenchymal stem/stromal cells (hMSCs) remains a key challenge for their widespread clinical deployment. Fibroblast growth factor-2 (FGF-2) is a key hMSC mitogen often supplemented to increase hMSC growth rates. However, hMSCs also produce endogenous FGF-2, which critically interacts with cell surface heparan sulfate (HS). We assessed the interplay of FGF-2 with a heparan sulfate variant (HS8) engineered to bind FGF-2 and potentiate its activity. Bone marrow-derived hMSCs were screened in perfused microbioreactor arrays (MBAs), showing that HS8 (50 μg/ml) increased hMSC proliferation and cell number after 3 days, with an effect equivalent to FGF-2 (50 ng/ml)...
February 16, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28202005/impact-of-gut-hormone-fgf-19-on-type-2-diabetes-and-mitochondrial-recovery-in-a-prospective-study-of-obese-diabetic-women-undergoing-bariatric-surgery
#8
Lucia Martinez de la Escalera, Ioannis Kyrou, Jana Vrbikova, Voitech Hainer, Petra Sramkova, Martin Fried, Milan K Piya, Sudhesh Kumar, Gyanendra Tripathi, Philip G McTernan
BACKGROUND: The ileal-derived hormone, fibroblast growth factor 19 (FGF-19), may promote weight loss and facilitate type-2 diabetes mellitus remission in bariatric surgical patients. We investigated the effect of different bariatric procedures on circulating FGF-19 levels and the resulting impact on mitochondrial health in white adipose tissue (AT). METHODS: Obese and type-2 diabetic women (n = 39, BMI > 35 kg/m(2)) undergoing either biliopancreatic diversion (BPD), laparoscopic greater curvature plication (LGCP), or laparoscopic adjustable gastric banding (LAGB) participated in this ethics approved study...
February 16, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28199182/one-reporter-for-in-cell-activity-profiling-of-majority-of-protein-kinase-oncogenes
#9
Iva Gudernova, Silvie Foldynova-Trantirkova, Barbora El Ghannamova, Bohumil Fafilek, Miroslav Varecha, Lukas Balek, Eva Hruba, Lucie Jonatova, Iva Jelinkova, Michaela Kunova Bosakova, Lukas Trantirek, Jiri Mayer, Pavel Krejci
In-cell profiling enables the evaluation of receptor tyrosine activity in a complex environment of regulatory networks that affect signal initiation, propagation and feedback. We used FGF-receptor signaling to identify EGR1 as a locus that strongly responds to the activation of a majority of the recognized protein kinase oncogenes, including 30 receptor tyrosine kinases and 154 of their disease-associated mutants. The EGR1 promoter was engineered to enhance trans-activation capacity and optimized for simple screening assays with luciferase or fluorescent reporters...
February 15, 2017: ELife
https://www.readbyqxmd.com/read/28198118/fibroblast-growth-factors-in-the-gastrointestinal-tract-twists-and-turns
#10
REVIEW
Soula Danopoulos, Christopher R Schlieve, Tracy C Grikscheit, Denise Al Alam
Fibroblast growth factors are a family of conserved peptides that play an important role in the development, homeostasis and repair processes of many organ systems including the gastrointestinal tract. All four FGF receptors and several FGF ligands are present in the intestine. They play important roles in controlling cell proliferation, differentiation, epithelial cell restitution and stem cell maintenance. Several FGFs have also been proven to be protective against gastrointestinal diseases such as inflammatory bowel diseases or to aid in regeneration after intestinal loss associated with short bowel syndrome...
February 15, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28193689/signaling-by-fgf-receptor-2-not-fgf-receptor-1-regulates-myelin-thickness-through-activation-of-erk1-2-mapk-which-promotes-mtorc1-activity-in-an-akt-independent-manner
#11
M Furusho, A Ishii, R Bansal
FGF signaling has emerged as a significant 'late-stage' regulator of myelin thickness in the CNS, independent of oligodendrocyte differentiation. Therefore, it is critically important to identify the specific FGF-Receptor-type and its downstream signaling molecules in oligodendrocytes to obtain better insights into the regulatory mechanisms of myelin growth. Here, we show that FGF-Receptor-type-2 (FGFR2) is highly enriched at the paranodal loops of myelin. Conditional ablation of this receptor-type, but not FGF-Receptor-type-1 (FGFR1), resulted in attenuation of myelin growth, expression of major myelin genes, key transcription factor Myrf and ERK1/2 activity...
February 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28193521/pharmacological-inhibition-of-magl-lipase-attenuates-experimental-colon-carcinogenesis
#12
Ester Pagano, Francesca Borrelli, Pierangelo Orlando, Barbara Romano, Martina Monti, Lucia Morbidelli, Gabriella Aviello, Roberta Imperatore, Raffaele Capasso, Fabiana Piscitelli, Lorena Buono, Vincenzo Di Marzo, Angelo A Izzo
Colorectal cancer (CRC) is a major health problem in Western countries. The endocannabinoid 2-arachidonoyl-glycerol (2-AG) exerts antiproliferative actions in a number of tumoral cell lines, including CRC cells. Monoacylglycerol lipase (MAGL), a serine hydrolase that inactivates 2-AG, is highly expressed in aggressive human cancer cells. Here, we investigated the role of MAGL in experimental colon carcinogenesis. The role of MAGL was assessed in vivo by using the xenograft and the azoxymethane models of colon carcinogenesis; MAGL expression was evaluated by RT-PCR and immunohistochemistry; 2-AG levels were measured by liquid chromatography mass spectrometry; angiogenesis was evaluated in tumor tissues [by microvessel counting and by investigating the expression of vascular endothelial growth factor (VEGF) and fibroblast growth factor-2 (FGF-2) proteins] as well as in human umbilical vein endothelial cells (HUVEC); cyclin D1 was evaluated by RT-PCR...
February 10, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28186657/association-of-vitamin-d-metabolites-with-parathyroid-hormone-fibroblast-growth-factor-23-calcium-and-phosphorus-in-dogs-with-various-stages-of-chronic-kidney-disease
#13
V J Parker, L M Harjes, K Dembek, G S Young, D J Chew, R E Toribio
BACKGROUND: Hypovitaminosis D is associated with progression of renal disease, development of renal secondary hyperparathyroidism (RHPT), chronic kidney disease-mineral bone disorder (CKD-MBD), and increased mortality in people with CKD. Despite what is known regarding vitamin D dysregulation in humans with CKD, little is known about vitamin D metabolism in dogs with CKD. OBJECTIVES: The purpose of our study was to further elucidate vitamin D status in dogs with different stages of CKD and to relate it to factors that affect the development of CKD-MBD, including parathyroid hormone (PTH), fibroblast growth factor-23 (FGF-23), calcium, and phosphorus concentrations...
February 10, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28186499/downregulation-of-lnc-spry1-mediates-tgf-%C3%AE-induced-epithelial-mesenchymal-transition-by-transcriptional-and-posttranscriptional-regulatory-mechanisms
#14
Cristina Rodríguez-Mateo, Belén Torres, Gabriel Gutiérrez, José A Pintor-Toro
Long non-coding RNAs (lncRNAs) are a class of regulatory genes that participate in a wide range of biological processes, including proliferation, differentiation and development, as well as in a broad spectrum of diseases. Although the role of lncRNAs in TGF-β-induced epithelial-to-mesenchymal transition (EMT) has been well established, little is known about the role of lncRNAs as immediate-early regulators of EMT. Here lnc-Spry1 is identified as an immediate-early regulator of EMT that is downregulated by TGF-β...
February 10, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28183331/phase-ii-randomized-placebo-controlled-study-of-dovitinib-in-combination-with-fulvestrant-in-postmenopausal-patients-with-hr-her2-breast-cancer-that-had-progressed-during-or-after-prior-endocrine-therapy
#15
Antonino Musolino, Mario Campone, Patrick Neven, Neelima Denduluri, Carlos H Barrios, Javier Cortes, Kimberly Blackwell, Hatem Soliman, Zsuzsanna Kahan, Hervé Bonnefoi, Matthew Squires, Yong Zhang, Stephanie Deudon, Michael M Shi, Fabrice André
BACKGROUND: Overexpression of fibroblast growth factor receptor 1 (FGFR1), found in ≤8% of hormone receptor-positive (HR(+)), human epidermal growth factor receptor 2-negative (HER2(-)) breast cancer cases, is correlated with decreased overall survival and resistance to endocrine therapy (ET). Dovitinib, a potent FGFR inhibitor, has demonstrated antitumor activity in heavily pretreated patients with FGFR pathway-amplified breast cancer. METHODS: In this randomized, placebo-controlled phase II trial, we evaluated whether the addition of dovitinib to fulvestrant would improve outcomes in postmenopausal patients with HR(+), HER2(-) advanced breast cancer that had progressed during or after prior ET...
February 10, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28182071/fibroblast-growth-factor-23-levels-in-maintenance-hemodialysis-patients-in-india
#16
U Anandh, P Mandavkar, B Das, S Rao
Fibroblast growth factor-23 (FGF-23) levels start rising early in patients with chronic kidney disease and is implicated in cardiovascular and overall mortality of hemodialysis patients. We conducted a prospective observational cohort study in stable dialysis patients looking into the levels of FGF-23 in hemodialysis patients and its association with various demographic and biochemical variables and mortality. A total of 91 patients were enrolled in the study. The mean FGF-23 levels were very high (1152.7 pg/ml)...
January 2017: Indian Journal of Nephrology
https://www.readbyqxmd.com/read/28181822/oncogenic-osteomalacia-role-of-ga-68-dotanoc-pet-ct-scan-in-identifying-the-culprit-lesion-and-its-management
#17
Deepa Singh, Mudalsha Ravina, Narvesh Kumar, Veeresh Dube, Utham Kumar K, Manish Dixit, Sanjay Gambhir
OBJECTIVES: The aim of this study was to evaluate role of (68)Ga-DOTANOC PET/CT scan in localization of culprit lesion for biopsy and required intervention (surgical excision/radiofrequency ablation) in patients with long standing oncogenic osteomalacia (OOM)/tumor induced osteomalacia (TIO). METHODS: 17 patients (08 male & 09 female) underwent (68)Ga-DOTANOC PET/CT scan. The patients referred with clinical and biochemical evidence of hypophosphatemia and raised Fibroblast Growth Factor-23 (FGF-23)...
February 9, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28181691/microrna-195-5p-regulates-osteogenic-differentiation-of-periodontal-ligament-cells-under-mechanical-loading
#18
Maolin Chang, Heng Lin, Haidi Fu, Beike Wang, Guangli Han, Mingwen Fan
Osteogenic differentiation and bone formation are tightly regulated by several factors, including microRNAs (miRNAs). However, miRNA expression patterns and function during mechanical loading-induced osteogenic differentiation of human periodontal ligament cells (PDLCs) remain unclear. Here, we investigated the differential expression of miRNA-195-5p in the periodontal tissues of mice under orthodontic mechanical loading and in primary human PDLCs exposed to a simulated tension strain. miR-195-5p was observed to be down-regulated and negatively correlated with osteogenic differentiation...
February 9, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28174253/vitamin-d-induces-myogenic-differentiation-in-skeletal-muscle-derived-stem-cells
#19
Melissa Braga, Zena Simmons, Keith C Norris, Monica G Ferrini, Jorge N Artaza
Skeletal muscle wasting is a serious disorder associated with health conditions such as aging, chronic kidney disease, and AIDS. Vitamin D is most widely recognized for its regulation of calcium and phosphate homeostasis in relation to bone development and maintenance. Recently, Vitamin D supplementation has been shown to improve muscle performance and reduce the risk of falls in Vitamin D deficient older adults. However, little is known of the underlying molecular mechanism(s) or the role it plays in myogenic differentiation...
February 7, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28173916/effect-of-mineral-and-bone-metabolism-on-restless-legs-syndrome-in-hemodialysis-patients
#20
Precil D M M Neves, Fabiana G Graciolli, Ivone B Oliveira, Ramaiane A Bridi, Rosa M A Moysés, Rosilene M Elias
STUDY OBJECTIVES: Restless legs syndrome (RLS) is a highly prevalent sleep disease among patients on hemodialysis. The physiopathology is still unclear, and may be multifactorial. Because of the association between iron metabolism and chronic kidney disease-mineral and bone disorders (CKD-MBD), we hypothesized that both factors would be associated with RLS. METHODS: We have evaluated hemodialysis patients, in a face-to-face interview for the diagnosis and severity of RLS, as measured by the International Restless Legs Syndrome Study Group...
January 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
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