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https://www.readbyqxmd.com/read/28323137/defects-in-chondrocyte-maturation-and-secondary-ossification-in-mouse-knee-joint-epiphyses-due-to-snorc-deficiency
#1
J Heinonen, F-P Zhang, C Surmann-Schmitt, S Honkala, M Stock, M Poutanen, A-M Säämänen
OBJECTIVE: The role of Snorc, a novel cartilage specific transmembrane proteoglycan, was studied during skeletal development using two Snorc knockout mouse models. Hypothesizing that Snorc, like the other transmembrane proteoglycans, may be a coreceptor, we also studied its interaction with growth factors. METHODS: Skeletal development was studied in wild type and Snorc knockout mice during postnatal development by whole mount staining, X-ray imaging, histomorphometry, immunohistochemistry and qRT-PCR...
March 17, 2017: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/28322621/bladder-regeneration-using-multiple-scaffolds-with-growth-factors-in-a-bladder
#2
Luc A J Roelofs, Paul K J D de Jonge, Egbert Oosterwijk, Dorien M Tiemessen, Barbara B Kortmann, Robert P E de Gier, Elly M M Versteeg, Willeke F Daamen, Toin H van Kuppevelt, Paul J Geutjes, Wout Feitz
INTRODUCTION: Tissue engineering may become an alternative to current bladder augmentation techniques. Large scaffolds are needed for clinically significant augmentation, but can result in fibrosis and graft shrinkage. The purpose of this study was to investigate the use of multiple scaffolds instead of one large scaffold, to enhance bladder tissue regeneration and bladder capacity. Secondly, acellular collagen, collagen-heparin, and collagen-heparin scaffolds with growth factors were used and the biological activity of the different scaffolds was compared in a large animal model...
March 21, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28317323/a-functional-snp-regulated-by-mir-196a-3p-in-the-3-utr-of-fgf2-is-associated-with-bone-mineral-density-in-the-chinese-population
#3
Dong-Li Zhu, Yan Guo, Yan Zhang, Shan-Shan Dong, Wen Xu, Ruo-Han Hao, Xiao-Feng Chen, Han Yan, Shui-Yun Yang, Tie-Lin Yang
Previous studies have identified FGF2 as a susceptibility gene for osteoporosis in Caucasians. Evaluating the genetic associations in different ethnicities is necessary. Moreover, elucidating the functional mechanism for the susceptibility loci is important to offer new targets for therapeutic studies. Here, we genotyped ten SNPs in FGF2 and tested for associations with bone mineral density (BMD) in a discovery sample of 1300 Chinese subjects. Nominally significant results were subjected to replication in another sample of 1039 Chinese subjects...
March 19, 2017: Human Mutation
https://www.readbyqxmd.com/read/28302677/the-integrin-binding-defective-fgf2-mutants-potently-suppress-fgf2-signaling-and-angiogenesis
#4
Seiji Mori, Nobuaki Hatori, Naomasa Kawaguchi, Yoshinosuke Hamada, Tsung-Chieh Shih, Chun-Yi Wu, Kit S Lam, Nariaki Matsuura, Hirofumi Yamamoto, Yoko K Takada, Yoshikazu Takada
We recently found that integrin αvβ3 binds to FGF1, and that the integrin-binding defective FGF1 mutant (Arg-50 to Glu, R50E) is defective in signaling and antagonistic to FGF1 signaling. R50E suppressed angiogenesis and tumor growth, suggesting that R50E has potential as a therapeutic. However, FGF1 is unstable, and we had to express R50E in cancer cells for xenograft study, since injected R50E may rapidly disappear from circulation. We studied if we can develop antagonist of more stable FGF2. FGF2 is widely involved in important biological processes such as stem cell proliferation and angiogenesis...
March 16, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28299490/molecular-effects-of-fractional-ablative-erbium-yag-laser-treatment-with-multiple-stacked-pulses-on-standardized-human-three-dimensional-organotypic-skin-models
#5
Laurenz Schmitt, P M Amann, Y Marquardt, R Heise, K Czaja, P A Gerber, T Steiner, F Hölzle, Jens Malte Baron
The molecular changes in gene expression following ablative laser treatment of skin lesions, such as atrophic scars and UV-damaged skin, are not completely understood. A standardized in vitro model of human skin, to study the effects of laser treatment on human skin, has been recently developed. Therefore, the aim of the investigation was to examine morphological and molecular changes caused by fractional ablative erbium:YAG laser treatment on an in vitro full-thickness 3D standardized organotypic model of human skin...
March 15, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28291821/transcriptomic-profile-of-leg-muscle-during-early-growth-in-chicken
#6
Qian Xue, Genxi Zhang, Tingting Li, Jiaojiao Ling, Xiangqian Zhang, Jinyu Wang
The early growth pattern, especially the age of peak growth, of broilers affects the time to market and slaughter weight, which in turn affect the profitability of the poultry industry. However, the underlying mechanisms regulating chicken growth and development have rarely been studied. This study aimed to identify candidate genes involved in chicken growth and investigated the potential regulatory mechanisms of early growth in chicken. RNA sequencing was applied to compare the transcriptomes of chicken muscle tissues at three developmental stages during early growth...
2017: PloS One
https://www.readbyqxmd.com/read/28287262/synthetic-glycopolymers-for-highly-efficient-differentiation-of-embryonic-stem-cells-into-neurons-lipo-or-not
#7
Qi Liu, Zhonglin Lyu, You Yu, Zhen-Ao Zhao, Shijun Hu, Lin Yuan, Gaojian Chen, Hong Chen
To realize the potential application of embryonic stem cells (ESCs) for the treatment of neurodegenerative diseases, it is a prerequisite to develop an effective strategy for the neural differentiation of ESCs so as to obtain adequate amount of neurons. Considering the efficacy of glycosaminoglycans (GAG) and their disadvantages (e.g. structure heterogeneity, impurity), GAG-mimicking glycopolymers (designed polymers containing functional units similar to natural GAG) with or without phospholipid groups were synthesized in the present work and their ability to promote neural differentiation of mouse ESCs (mESCs) was investigated...
March 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28285568/cigarette-smoking-affects-uterine-receptivity-markers
#8
Gulcin Sahin Ersoy, Yuping Zhou, Hamdi İnan, Cuneyt E Taner, Emine Cosar, Hugh S Taylor
OBJECTIVE: Smoking negatively affects fertility and the rate of other endometrial diseases. To determine the effect of smoking on endometrial physiology, we evaluated 2 endometrial regulatory cytokines and receptivity markers, C-X-C motif chemokine ligand 12 (CXCL12) and fibroblast growth factor 2 (FGF2), both in vitro and in vivo. STUDY DESIGN: The human endometrial stromal cell line (HESC) and primary human endometrial stromal cells were treated with cigarette smoking extract (CSE) or with vehicle control...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28266625/inhibition-of-phd3-by-salidroside-promotes-neovascularization-through-cell-cell-communications-mediated-by-muscle-secreted-angiogenic-factors
#9
Jing Zhang, Vivi Kasim, Yu-Dan Xie, Can Huang, Julita Sisjayawan, Agnes Dwi Ariyanti, Xue-Song Yan, Xiao-Yan Wu, Cai-Ping Liu, Li Yang, Makoto Miyagishi, Shou-Rong Wu
Therapeutic angiogenesis has been considered as a potential strategy for treating peripheral artery diseases including hind-limb ischemia (HLI); however, no effective drug-based treatment is currently available. Here we showed that intramuscular administration of salidroside, an active compound of Chinese herb Rhodiola, could robustly enhance blood perfusion recovery by promoting neovascularization in HLI mice. We revealed that salidroside promoted skeletal muscle cell migration and paracrine function through inhibiting the transcriptional level of prolyl-hydroxylase domain 3 (PHD3) without affecting PHD1 and PHD2...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28258379/long-noncoding-rna-pvt1-acts-as-a-sponge-to-inhibit-microrna-152-in-gastric-cancer-cells
#10
Ting Li, Xiang-Ling Meng, Wen-Qi Yang
BACKGROUND: PVT1 was up-regulated in patients with gastric cancer (GC) and might be as a novel biomarker for predicting GC. However, the exact mechanism of PVT1 exerting functions in GC was still poorly understood. Emerging evidence suggests that long noncoding RNAs may act as endogenous microRNA (miRNA) sponges to bind to miRNAs and regulate their function. AIM: This study aimed to determine the function of PVT1 on miR-152 expression in GC cells. METHODS: The levels of PVT1 and miR-152 were determined in GC tissues by quantitative real-time PCR...
March 3, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28249356/regulation-of-skeletal-muscle-stem-cells-by-fibroblast-growth-factors
#11
REVIEW
Bradley Pawlikowski, Thomas Orion Vogler, Katherine Gadek, Bradley Olwin
Fibroblast growth factors are essential for self-renewal of skeletal muscle stem cells (satellite cells), and required for maintenance and repair of skeletal muscle. Satellite cells express high levels of FGF receptor 1 and 4, low levels of FGF receptor 3 and little or no detectable FGF receptor 2. Of the multiple FGFs that influence satellite cell function in culture, FGF2 and FGF6 are the only members that regulate satellite cell function in vivo by activating ERK MAPK, p38α/β MAPKs, PI3 kinase, PLCγ and STATs...
March 1, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28248004/highly-efficient-differentiation-of-endothelial-cells-from-pluripotent-stem-cells-requires-the-mapk-and-the-pi3k-pathways
#12
Aja Harding, Elizabeth Cortez-Toledo, Nataly L Magner, Julie R Beegle, Dane P Coleal-Bergum, Dake Hao, Aijun Wang, Jan A Nolta, Ping Zhou
Pluripotent stem cells are a promising source of endothelial cells (ECs) for the treatment of vascular diseases. We have developed a robust protocol to differentiate human induced pluripotent stem cells (hiPSCs) and embryonic stem cells (hESCs) into ECs with high purities (94%-97% CD31(+) and 78%-83% VE-cadherin(+) ) in 8 days without cell sorting. Passaging of these cells yielded a nearly pure population of ECs (99% of CD31(+) and 96.8% VE-cadherin(+) ). These ECs also expressed other endothelial markers vWF, Tie2, NOS3, and exhibited functions of ECs such as uptake of Dil-acetylated low-density lipoprotein and formation of tubes in vitro or vessels in vivo on matrigel...
March 1, 2017: Stem Cells
https://www.readbyqxmd.com/read/28244611/suppression-of-fgf2-by-ets2-repressor-factor-erf-is-required-for-chorionic-trophoblast-differentiation
#13
Elena Vorgia, Andreas Zaragkoulias, Ioanna Peraki, George Mavrothalassitis
ETS2 repressor factor (ERF) is a ubiquitous transcriptional repressor regulated by Extracellular signal-regulated kinase 1/2 (ERK1/2) phosphorylation. Homozygous deletion of Erf in mice blocks chorionic trophoblast differentiation, resulting in the failure of chorioallantoic fusion and subsequent embryo death. Fibroblast growth factor (FGF) signaling is important for proper trophoblast stem cell (TSC) differentiation and development of the hemochorial placenta. Lack of Fgf2 promotes TSC differentiation, while FGF4 or FGF2 is required for murine TSC maintenance...
February 28, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28238531/fibroblast-growth-factor-2-fgf2-and-vascular-endothelial-growth-factor-a-vegfa-synergistically-promote-steroidogenesis-and-survival-of-cultured-buffalo-granulosa-cells
#14
S R Mishra, Jaya Bharati, G Rajesh, V S Chauhan, G Taru Sharma, S Bag, V P Maurya, G Singh, M Sarkar
The present study investigated the combined effect of fibroblast growth factor 2 (FGF2) and vascular endothelial growth factor A (VEGF-A) on estradiol (E2) secretion and relative abundance of mRNA for aromatase enzyme (CYP19A1), proliferating cell nuclear antigen (PCNA) and BCL-2 associated X protein (BAX) in cultured buffalo granulosa cells (GCs). Follicles were isolated and classified into four groups based on size and E2 concentration in follicular fluid (FF): Small, 4-6mm diameter, E2<0.5ng/ml; Medium, 7-9mm, E2=0...
April 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28220305/homeobox-wnt-and-fibroblast-growth-factor-signaling-is-augmented-during-alveogenesis-in-mice-lacking-superoxide-dismutase-3-extracellular
#15
Tania A Thimraj, Rahel L Birru, Ankita Mitra, Holger Schulz, George D Leikauf, Koustav Ganguly
Superoxide dismutase 3, extracellular (SOD3) polymorphisms have been implicated in reduced pulmonary function development and altered risk for chronic obstructive pulmonary disease. We previously reported that gene-targeted Sod3-/- mice have impaired lung function and human SOD3 variants are associated with reduced pulmonary function in children. Reduced lung SOD3 levels were reported in mice with lower lung function with the greatest difference occurring during alveogenesis phase [postnatal (P) days 14-28]...
February 20, 2017: Lung
https://www.readbyqxmd.com/read/28213656/dual-functional-microrna-186-5p-targets-both-fgf2-and-rela-to-suppress-tumorigenesis-of-glioblastoma-multiforme
#16
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/28210901/transplantation-of-lineage-negative-stem-cells-in-pterygopalatine-artery-ligation-induced-retinal-ischemia-reperfusion-injury-in-mice
#17
Gillipsie Minhas, Sudesh Prabhakar, Ryuichi Morishita, Munehisa Shimamura, Reema Bansal, Akshay Anand
Retinal ischemia is a condition associated with retinal degenerative diseases such as glaucoma, diabetic retinopathy, and other optic neuropathies, leading to visual impairment and blindness worldwide. Currently, there is no therapy available for ischemic retinopathies. Therefore, the aim of this study was to test a murine model of pterygopalatine artery ligation-induced retinal injury for transplantation of mouse bone marrow-derived lineage-negative (lin-ve) stem cells. The mouse external carotid artery and pterygopalatine artery were ligated for 3...
February 16, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28205604/selectively-bred-rats-provide-a-unique-model-of-vulnerability-to-ptsd-like-behavior-and-respond-differentially-to-fgf2-augmentation-early-in-life
#18
Katherine E Prater, Elyse L Aurbach, Hanna K Larcinese, Taylor N Smith, Cortney A Turner, Peter Blandino, Stanley J Watson, Stephen Maren, Huda Akil
Individuals respond differently to traumatic experiences including their propensity to develop post-traumatic stress disorder (PTSD). Understanding individual differences in PTSD vulnerability will allow the development of improved prevention and treatment options. Here, we characterized fear conditioning and extinction in rats selectively bred for differences in their locomotor response to a novel environment. Selectively bred high responder (bHR) and low responder (bLR) male rats are known to differ in their emotional reactivity on a range of measures of spontaneous anxiety- and depressive-like behaviors...
February 16, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28197342/the-function-of-fgfr1-signalling-in-the-spinal-cord-therapeutic-approaches-using-fgfr1-ligands-after-spinal-cord-injury
#19
REVIEW
Barbara Haenzi, Lawrence D F Moon
Extensive research is ongoing that concentrates on finding therapies to enhance CNS regeneration after spinal cord injury (SCI) and to cure paralysis. This review sheds light on the role of the FGFR pathway in the injured spinal cord and discusses various therapies that use FGFR activating ligands to promote regeneration after SCI. We discuss studies that use peripheral nerve grafts or Schwann cell grafts in combination with FGF1 or FGF2 supplementation. Most of these studies show evidence that these therapies successfully enhance axon regeneration into the graft...
2017: Neural Plasticity
https://www.readbyqxmd.com/read/28193024/evaluating-tumor-associated-activity-of-extracellular-sulfatase-by-analyzing-naturally-occurring-substrate-in-tumor-microenvironment-of-hepatocellular-carcinoma
#20
Yue Yu, Hao Li, Yucai Yang, Yitao Ding, Zhaoxia Wang, Genxi Li
The progress of cancer is intimately connected with the activity of the extracellular matrix (ECM) enzymes. To evaluate the promoting effect of these enzymes on tumor development in a pathological biocontext, we propose in this work to analyze their natural substrates in the ECM. This strategy is demonstrated by studying heparan sulfate (HS), the substrate of ECM sulfatase, in the development of hepatocellular carcinoma (HCC). An assay is designed to study the abundance and sulfation of HS and to evaluate the interactions between HS and the growth factors, such as fibroblast growth factor 2 (FGF2)...
December 20, 2016: Analytical Chemistry
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