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https://www.readbyqxmd.com/read/29044129/priming-with-fgf2-stimulates-human-dental-pulp-cells-to-promote-axonal-regeneration-and-locomotor-function-recovery-after-spinal-cord-injury
#1
Kosuke Nagashima, Takahiro Miwa, Hitomi Soumiya, Daisuke Ushiro, Tomoko Takeda-Kawaguchi, Naritaka Tamaoki, Saho Ishiguro, Yumi Sato, Kei Miyamoto, Takatoshi Ohno, Masatake Osawa, Takahiro Kunisada, Toshiyuki Shibata, Ken-Ichi Tezuka, Shoei Furukawa, Hidefumi Fukumitsu
Human dental pulp cells (DPCs), adherent cells derived from dental pulp tissues, are potential tools for cell transplantation therapy. However, little work has been done to optimize such transplantation. In this study, DPCs were treated with fibroblast growth factor-2 (FGF2) for 5-6 consecutive serial passages and were transplanted into the injury site immediately after complete transection of the rat spinal cord. FGF2 priming facilitated the DPCs to promote axonal regeneration and to improve locomotor function in the rat with spinal cord injury (SCI)...
October 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29042195/circular-rna-wdr77-target-fgf-2-to-regulate-vascular-smooth-muscle-cells-proliferation-and-migration-by-sponging-mir-124
#2
Junjiang Chen, Lianqun Cui, Jingliang Yuan, Yuqing Zhang, Hongjun Sang
Increasing evidences have revealed the important role of circular RNAs (circRNAs) in cardiovascular system disease. Whereas, the expression profiles and in-depth regulation of circRNAs on vascular smooth muscle cells (VSMCs) is still undetermined. In present study, our research team performed circRNAs microarray analysis to present the circRNAs expression profiles in high glucose induced VSMCs in vitro. Results showed that total of 983 circRNAs were discovered to be differentially expressed, and of these, 458 were upregulated and 525 were downregulated...
October 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29030736/n-tert-butyloxycarbonyl-phe-leu-phe-leu-phe-boc2-inhibits-the-angiogenic-activity-of-heparin-binding-growth-factors
#3
Imtiaz M Nawaz, Paola Chiodelli, Sara Rezzola, Giuseppe Paganini, Michela Corsini, Alessio Lodola, Alessio Di Ianni, Marco Mor, Marco Presta
The peptides N-tert-butyloxycarbonyl-Phe-Leu-Phe-Leu-Phe (BOC2) and BOC-Met-Leu-Phe (BOC1) are widely used antagonists of formyl peptide receptors (FPRs), BOC2 acting as an FPR1/FPR2 antagonist whereas BOC1 inhibits FPR1 only. Extensive investigations have been performed by using these FPR antagonists as a tool to assess the role of FPRs in physiological and pathological conditions. Based on previous observations from our laboratory, we assessed the possibility that BOC2 may exert also a direct inhibitory effect on the angiogenic activity of vascular endothelial growth factor-A (VEGF-A)...
October 13, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28993730/molecular-guided-therapy-provides-sustained-clinical-response-in-refractory-choroid-plexus-carcinoma
#4
Albert Cornelius, Jessica Foley, Jeffrey Bond, Abhinav B Nagulapally, Julie Steinbrecher, William P D Hendricks, Maria Rich, Sangeeta Yendrembam, Genevieve Bergendahl, Jeffrey M Trent, Giselle S Sholler
Choroid plexus carcinomas (CPCs) are rare, aggressive pediatric brain tumors with no established curative therapy for relapsed disease, and poor survival rates. TP53 Mutation or dysfunction correlates with poor or no survival outcome in CPCs. Here, we report the case of a 4 month-old female who presented with disseminated CPC. After initial response to tumor resection and adjuvant-chemotherapy, the tumor recurred and metastasized with no response to aggressive relapse therapy suggesting genetic predisposition...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28979193/intraocular-injection-of-es-cell-derived-neural-progenitors-improve-visual-function-in-retinal-ganglion-cell-depleted-mouse-models
#5
Mundackal S Divya, Vazhanthodi A Rasheed, Tiffany Schmidt, Soundararajan Lalitha, Samer Hattar, Jackson James
Retinal ganglion cell (RGC) transplantation is a promising strategy to restore visual function resulting from irreversible RGC degeneration occurring in glaucoma or inherited optic neuropathies. We previously demonstrated FGF2 induced differentiation of mouse embryonic stem cells (ESC) to RGC lineage, capable of retinal ganglion cell layer (GCL) integration upon transplantation. Here, we evaluated possible improvement of visual function by transplantation of ES cell derived neural progenitors in RGC depleted glaucoma mice models...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28976765/growth-factor-releasing-polyelectrolyte-multilayer-films-to-control-the-cell-culture-environment
#6
Ivan Ding, Dalia M Shendi, Marsha W Rolle, Amy M Peterson
Polyelectrolyte multilayers (PEMs) are of great interest as cell culture surfaces because of their ability to modify topography and surface energy and release biologically relevant molecules such as growth factors. In this work, fibroblast growth factor 2 (FGF2) was adsorbed directly onto polystyrene, plasma-treated polystyrene, and glass surfaces with a poly(methacrylic acid) and poly-l-histidine PEM assembled above it. Up to 14 ng/cm(2) of FGF2 could be released from plasma-treated polystyrene surfaces over the course of 7 days with an FGF2 solution concentration of 100 μg/mL applied during the adsorption process...
October 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28967471/fibroblast-growth-factor-2-as-an-antifibrotic-antagonism-of-myofibroblast-differentiation-and-suppression-of-pro-fibrotic-gene-expression
#7
David M Dolivo, Sara A Larson, Tanja Dominko
Fibrosis is a pathological condition that is characterized by the replacement of dead or damaged tissue with a nonfunctional, mechanically aberrant scar, and fibrotic pathologies account for nearly half of all deaths worldwide. The causes of fibrosis differ somewhat from tissue to tissue and pathology to pathology, but in general some of the cellular and molecular mechanisms remain constant regardless of the specific pathology in question. One of the common mechanisms underlying fibroses is the paradigm of the activated fibroblast, termed the "myofibroblast," a differentiated mesenchymal cell with demonstrated contractile activity and a high rate of collagen deposition...
September 23, 2017: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/28963460/hedgehog-interacting-protein-hip-regulates-apoptosis-evasion-and-angiogenic-function-of-late-endothelial-progenitor-cells
#8
Bom Nae Rin Lee, Yeon Sung Son, Dabin Lee, Young-Jin Choi, Sang-Mo Kwon, Hyun-Kyung Chang, Pyung-Hwan Kim, Je-Yoel Cho
Late endothelial progenitor cells (LEPCs) are derived from mononuclear cells (MNCs) and are thought to directly incorporate into blood vessels and differentiate into mature endothelial cells (ECs). Using transcriptome and proteome analysis, we identified distinctive LEPC profiles and found that Hedgehog-interacting protein (HIP) is strongly expressed in LEPCs. Inhibition of HIP by lentiviral knockdown activated canonical hedgehog signaling in LEPCs, while it activated non-canonical hedgehog signaling in ECs...
September 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28947594/mir-339-inhibits-proliferation-of-pulmonary-artery-smooth-muscle-cell-by-targeting-fgf-signaling
#9
Jidong Chen, Xiaolei Cui, Li Li, Junle Qu, J Usha Raj, Deming Gou
Pulmonary artery hypertension (PAH) is a fatal disorder. Recent studies suggest that microRNA (miRNA) plays an important role in regulating proliferation of pulmonary artery smooth muscle cells (PASMC), which underlies the pathology of PAH However, the exact mechanism of action of miRNAs remains elusive. In this study, we found that miR-339 was highly expressed in the cardiovascular system and was downregulated by a group of cytokines and growth factors, especially PDGF-BB and FGF2. Functional analyses revealed that miR-339 can inhibit proliferation of PASMC Also, miR-339 inhibited FGF2-induced proliferation, but had no effect on proliferation induced by PDGF-BB The fibroblast growth factor receptor substrate 2 (FRS2) was identified as a potential direct target of miR-339...
September 2017: Physiological Reports
https://www.readbyqxmd.com/read/28940204/adipose-derived-mesenchymal-stromal-cells-prevented-rat-vocal-fold-scarring
#10
Tsuyoshi Morisaki, Yo Kishimoto, Ichiro Tateya, Yoshitaka Kawai, Ryo Suzuki, Takuya Tsuji, Nao Hiwatashi, Tatsuo Nakamura, Koichi Omori, Hiroya Kitano, Hiromi Takeuchi, Shigeru Hirano
OBJECTIVES/HYPOTHESIS: This study aimed to reveal the effects of adipose-derived mesenchymal stromal cells (ASCs) on prevention of vocal fold scarring by investigating how the immediate ASCs transplantation into the injured rat vocal fold affect the levels of gene transcription and translation. STUDY DESIGN: Prospective animal experiments with controls. METHODS: ASCs harvested from green fluorescent protein transgenic rat (ASCs group) or saline (sham group) were injected into the thyroarytenoid muscle of Sprague-Dawley rats immediately after stripping the vocal fold...
September 20, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28939162/distinct-lithium-induced-gene-expression-effects-in-lymphoblastoid-cell-lines-from-patients-with-bipolar-disorder
#11
Gabriel R Fries, Gabriela D Colpo, Nancy Monroy-Jaramillo, Junfei Zhao, Zhongming Zhao, Jodi G Arnold, Charles L Bowden, Consuelo Walss-Bass
Lithium is the most commonly prescribed medication for the treatment of bipolar disorder (BD), yet the mechanisms underlying its beneficial effects are still unclear. We aimed to compare the effects of lithium treatment in lymphoblastoid cell lines (LCLs) from BD patients and controls. LCLs were generated from sixty-two BD patients (based on DSM-IV) and seventeen healthy controls matched for age, sex, and ethnicity. Patients were recruited from outpatient clinics from February 2012 to October 2014. LCLs were treated with 1mM lithium for 7 days followed by microarray gene expression assay and validation by real-time quantitative PCR...
September 19, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28938523/hypothermia-induced-by-anesthesia-regulates-various-signals-expressions-in-the-hippocampus-of-animals
#12
Huimei Hao, Shanshan Wang
Though important for a variety of medical procedures, general anesthesia is not a problem free. Some anesthetics have been suggested to affect a number of signals, which are associated with memory consolidation and cognition. In the present study, we attempted to investigate the molecular mechanism of anesthesia-regulated processes. We found that under hypothermic condition, anesthetic of isoflurane enhances various signals expression in hippocampus, including Hspd1, Actb, Mgst1, THBS4, Syp, C1QC, Serpine, Plat, and Ngf, which were related to cellular stress, neural plasticity responses, and hippocampal injury...
September 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28938491/inhibition-of-fgfr-signaling-partially-rescues-hypophosphatemic-rickets-in-hmwfgf2-tg-male-mice
#13
Liping Xiao, Erxia Du, Collin Homer-Bouthiette, Marja M Hurley
Transgenic mice harboring high molecular weight fibroblast growth factor (FGF)2 isoforms (HMWTg) in osteoblast lineage cells phenocopy human X-linked hypophosphatemic rickets (XLH) and Hyp murine model of XLH demonstrating increased FGF23/FGF receptor signaling and hypophosphatemic rickets. Because HMWFGF2 was upregulated in bones of Hyp mice and abnormal FGF receptor (FGFR) signaling is important in XLH, HMWTg mice were used to examine the effect of the FGFR inhibitor NVP-BGJ398, now in clinical trials for cancer therapy, on hypophosphatemic rickets...
October 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28923346/role-of-fibroblast-growth-factor-receptors-fgfr-and-fgfr-like-1-fgfrl1-in-mesenchymal-stromal-cell-differentiation-to-osteoblasts-and-adipocytes
#14
T E Kähkönen, K K Ivaska, M Jian, K G Büki, H K Väänänen, P L Härkönen
Fibroblast growth factors (FGF) and their receptors (FGFRs) regulate many developmental processes including differentiation of mesenchymal stromal cells (MSC). We developed two MSC lines capable of differentiating to osteoblasts and adipocytes and studied the role of FGFRs in this process. We identified FGFR2 and fibroblast growth factor receptor like-1 (FGFRL1) as possible actors in MSC differentiation with gene microarray and qRT-PCR. FGFR2 and FGFRL1 mRNA expression strongly increased during MSC differentiation to osteoblasts...
September 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28920077/mimicking-the-bioactivity-of-fibroblast-growth-factor-2-using-supramolecular-nanoribbons
#15
Charles M Rubert Pérez, Zaida Álvarez, Feng Chen, Taner Aytun, Samuel I Stupp
Fibroblast growth factor (FGF-2) is a multifunctional growth factor that has pleiotropic effects in different tissues and organs. In particular, FGF-2 has a special role in angiogenesis, an important process in development, wound healing, cell survival, and differentiation. Therefore, incorporating biological agents like FGF-2 within therapeutic biomaterials is a potential strategy to create angiogenic bioactivity for the repair of damaged tissue caused by trauma or complications that arise from age and/or disease...
September 11, 2017: ACS Biomaterials Science & Engineering
https://www.readbyqxmd.com/read/28916723/fibroblast-growth-factor-2-fgf2-regulates-cytoglobin-expression-and-activation-of-human-hepatic-stellate-cells-via-jnk-signaling
#16
Misako Sato-Matsubara, Tsutomu Matsubara, Atsuko Daikoku, Yoshinori Okina, Lisa Longato, Krista Rombouts, Le Thi Thanh Thuy, Jun Adachi, Takeshi Tomonaga, Kazuo Ikeda, Katsutoshi Yoshizato, Massimo Pinzani, Norifumi Kawada
Cytoglobin (CYGB) belongs to the mammalian globin family and is exclusively expressed in hepatic stellate cells (HSCs) in the liver. In addition to its gas-binding ability, CYGB is relevant to hepatic inflammation, fibrosis, and cancer because of its antioxidative properties; however, the regulation of CYGB gene expression remains unknown. Here, we sought to identify factors that induce CYGB expression in HSCs and to clarify the molecular mechanism involved. We used the human HSC cell line HHSteC and primary human HSCs isolated from intact human liver tissues...
September 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28915889/anti-fibrotic-efficacy-of-nintedanib-in-pulmonary-fibrosis-via-the-inhibition-of-fibrocyte-activity
#17
Seidai Sato, Shintaro Shinohara, Shinya Hayashi, Shun Morizumi, Shuichi Abe, Hiroyasu Okazaki, Yanjuan Chen, Hisatsugu Goto, Yoshinori Aono, Hirohisa Ogawa, Kazuya Koyama, Haruka Nishimura, Hiroshi Kawano, Yuko Toyoda, Hisanori Uehara, Yasuhiko Nishioka
BACKGROUND: Nintedanib, a tyrosine kinase inhibitor that is specific for platelet-derived growth factor receptors (PDGFR), fibroblast growth factor receptors (FGFR), and vascular endothelial growth factor receptors (VEGFR), has recently been approved for idiopathic pulmonary fibrosis. Fibrocytes are bone marrow-derived progenitor cells that produce growth factors and contribute to fibrogenesis in the lungs. However, the effects of nintedanib on the functions of fibrocytes remain unclear...
September 15, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28911139/preeclampsia-downregulates-micrornas-in-fetal-endothelial-cells-roles-of-mir-29a-c-3p-in-endothelial-function
#18
Chi Zhou, Qing-Yun Zou, Hua Li, Rui-Fang Wang, Ai-Xia Liu, Ronald R Magness, Jing Zheng
Context: Preeclampsia is a leading cause of fetal and maternal morbidity and mortality during pregnancy. Although the etiology of preeclampsia is unknown, preeclampsia offspring have increased risks of developing cardiovascular disorders in adulthood, implicating that preeclampsia programs fetal vasculature in utero. Objective: We hypothesize that preeclampsia alters expression profiles of endothelial microRNAs (miRNAs) in fetal endothelial cells and disturbs the vascular endothelial growth factor A (VEGFA)- and fibroblast growth factor 2 (FGF2)-induced endothelial function...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28899730/a-green-tea-polyphenol-epigallocatechin-3-gallate-enhances-neuroregeneration-after-spinal-cord-injury-by-altering-levels-of-inflammatory-cytokines
#19
Lucia Machova Urdzikova, Jiri Ruzicka, Kristyna Karova, Anna Kloudova, Barbora Svobodova, Anubhav Amin, Jana Dubisova, Meic Schmidt, Sarka Kubinova, Meena Jhanwar-Uniyal, Pavla Jendelova
Spinal cord injury (SCI) is a debilitating condition which is characterized by an extended secondary injury due to the presence of inflammatory local milieu. Epigallocatechin gallate (EGCG) appears to possess strong neuroprotective properties. Here, we evaluated the beneficial effect of EGCG on recovery from SCI. Male Wistar rats were given either EGCG or saline directly to the injured spinal cord and thereafter a daily IP injection. Behavior recovery was monitored by BBB, plantar, rotarod and flat-beam tests...
September 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28899582/fgf2-mediated-attenuation-of-myofibroblast-activation-is-modulated-by-distinct-mapk-signaling-pathways-in-human-dermal-fibroblasts
#20
David M Dolivo, Sara A Larson, Tanja Dominko
BACKGROUND: Previous human and animal studies have demonstrated the ability of exogenously administered basic fibroblast growth factor (FGF2) to act as an antifibrotic agent in the skin. Though the activity of FGF2 as an anti-scarring agent is well-established for fibrotic skin wounds, the mechanisms by which FGF2 exerts these actions are not entirely understood. Canonical FGF2 signaling proceeds in part via FGFR/MAPK pathways in human dermal fibroblasts, and FGF2 has been described to prevent or reverse the fibroblast-to-myofibroblast transition, which is driven by TGFβ signaling and understood to be an important step in the formation of a fibrotic scar in vivo...
September 1, 2017: Journal of Dermatological Science
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