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https://www.readbyqxmd.com/read/28813681/uncoupling-the-mitogenic-and-metabolic-functions-of-fgf1-by-tuning-fgf1-fgf-receptor-dimer-stability
#1
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
#2
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...
August 9, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28733346/regulation-and-action-of-early-growth-response-1-in-bovine-granulosa-cells
#3
Peng Han, Hilda Guerrero-Netro, Anthony Estienne, Binyun Cao, Christopher Price
Fibroblast growth factors (FGF) modify cell proliferation and differentiation through receptor tyrosine kinases, which stimulate the expression of transcription factors including members of the early growth response (EGR) family. In ovarian granulosa cells, most FGFs activate typical response genes, although the role of EGR proteins has not been described. In the present study, we determined the regulation of EGR mRNA by FGFs and explored the role of EGR1 in the regulation of FGF response genes. Addition of FGF1, FGF2, FGF4 or FGF8b increased EGR1 and EGR3 mRNA levels, whereas FGF18 increased only EGR1 mRNA abundance...
July 21, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28674664/recombinant-expression-in-e-coli-of-human-fgfr2-with-its-transmembrane-and-extracellular-domains
#4
Adam Bajinting, Ho Leung Ng
Fibroblast growth factor receptors (FGFRs) are a family of receptor tyrosine kinases containing three domains: an extracellular receptor domain, a single transmembrane helix, and an intracellular tyrosine kinase domain. FGFRs are activated by fibroblast growth factors (FGFs) as part of complex signal transduction cascades regulating angiogenesis, skeletal formation, cell differentiation, proliferation, cell survival, and cancer. We have developed the first recombinant expression system in E. coli to produce a construct of human FGFR2 containing its transmembrane and extracellular receptor domains...
2017: PeerJ
https://www.readbyqxmd.com/read/28664920/fgf1-a-new-weapon-to-control-type-2-diabetes-mellitus
#5
REVIEW
Emanuel Gasser, Christopher P Moutos, Michael Downes, Ronald M Evans
A hypercaloric diet combined with a sedentary lifestyle is a major risk factor for the development of insulin resistance, type 2 diabetes mellitus (T2DM) and associated comorbidities. Standard treatment for T2DM begins with lifestyle modification, and includes oral medications and insulin therapy to compensate for progressive β-cell failure. However, current pharmaceutical options for T2DM are limited in that they do not maintain stable, durable glucose control without the need for treatment intensification...
June 30, 2017: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/28656229/co-expression-of-podoplanin-and-fibroblast-growth-factor-1-predicts-poor-prognosis-in-patients-with-lung-squamous-cell-carcinoma
#6
Juan Li, Han Chen, Xiaoqing Li, Linlin Wang, Aiqin Gao, Pei Zhang, Wenli Lin, Wei Gao, Dong Yang, Xiaosun Guo, Jie Liu, Qi Dang, Yuping Sun
Podoplanin and fibroblast growth factor (FGF) 1 have been detected more frequently in lung squamous cell carcinoma (SQCC) compared with lung adenocarcinoma. Furthermore, it has been previous demonstrated that FGF1 is located on the edge of tumor nests in certain lung SQCC sections, which resembles the characteristic expression pattern of podoplanin. Podoplanin and FGF1 have roles in lymphangiogenesis and angiogenesis. Based on their consistently specific expression in lung SQCC and similar localization patterns, the present study aimed to investigate whether the expression of podoplanin in tumor cells is correlated with FGF1 expression in lung SQCC and whether their co‑expression has clinicopathological significance, particularly for lymphangiogenesis/angiogenesis...
August 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28655615/lncrna-map2k4-sequesters-mir-199a-to-promote-fgf1-expression-and-spinal-cord-neuron-growth
#7
Hao-Ran Lv
Spinal cord injury (SCI) is a common critical illness in clinical practice. SCI prevention, treatment and rehabilitation have become important topics in today's medical profession. Studies have shown that long noncoding RNAs (lncRNAs) also play an important role in the pathology of SCI. The biology software analysis identified miR-199a binding sites in the lncRNA-Map2k4 and FGF1 sequences, which were confirmed by the subsequent dual luciferase reporter assay. When lncRNA-Map2k4 expression was down-regulated by siRNA, miR-199a expression in neurons was up-regulated and FGF1 expression was down-regulated...
August 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28623314/comparative-transcriptomic-and-proteomic-analyses-provide-insights-into-the-key-genes-involved-in-high-altitude-adaptation-in-the-tibetan-pig
#8
Bo Zhang, Yangzom Chamba, Peng Shang, Zhixiu Wang, Jun Ma, Liyuang Wang, Hao Zhang
Tibetan pigs that inhabit the Tibetan Plateau exhibit striking phenotypic and physiological differences from lowland pigs, and have adapted well to extreme conditions. However, the mechanisms involved in regulating gene expression at high altitude in these animals are not fully understood. In this study, we obtained transcriptomic and proteomic data from the heart tissues of Tibetan and Yorkshire pigs raised in the highlands (TH and YH) and lowlands (TL and YL) via RNA-seq and iTRAQ (isobaric tags for relative and absolute quantitation) analyses, respectively...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28606533/study-of-a-new-biodegradable-hernia-patch-to-repair-abdominal-wall-defect-in-rats
#9
Jing Qiao, Zhiwen Jiang, Yan Yang, Jinhua Chi, Xuesong Qiao, Baoqin Han, Wanshun Liu
A novel biodegradable chitin hernia patch was prepared by acetylation of chitosan fabric in our study. Physicochemical properties, cell compatibility and biodegradability of the chitin patch were quantified. Histopathological study of the functional experiment showed that this newly designed hernia patch promoted collagen deposition and neovascularization by significantly promoting the secretion of FGF1 and TGF-β1 in the early postoperative (P<0.01). Chitin patch caused less inflammation by inhibiting excessive expression of IL-6 and TNF-α when compared to the polypropylene mesh (P<0...
September 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28598150/high-yield-site-specific-conjugation-of-fibroblast-growth-factor-1-with-monomethylauristatin-e-via-cysteine-flanked-by-basic-residues
#10
Michal Lobocki, Malgorzata Zakrzewska, Anna Szlachcic, Mateusz A Krzyscik, Aleksandra Sokolowska-Wedzina, Jacek Otlewski
Site-specific conjugation is a leading trend in the development of protein conjugates, including antibody-drug conjugates (ADCs), suitable for targeted cancer therapy. Here, we present a very efficient strategy for specific attachment of a cytotoxic drug to fibroblast growth factor 1 (FGF1), a natural ligand of FGF receptors (FGFRs), which are over-expressed in several types of lung, breast, and gastric cancers and are therefore an attractive molecular target. Recently, we showed that FGF1 fused to monomethylauristatin E (vcMMAE) was highly cytotoxic to cells presenting FGFRs on their surface and could be used as a targeting agent alternative to an antibody...
July 19, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28511329/-therapeutic-effect-of-combined-use-of-fgf1-loaded-nano-liposomes-and-ultrasound-targeted-microbubble-destruction-technique-on-treating-rats-with-experimental-diabetic-cardiomyopathy
#11
M Zhang, Y Z Zhao, W C Ma, J L Xu, J L Wang, M J Chen, L Yu, Y N Chen
Objective: The therapeutic effect of acid fibroblast growth factor 1(FGF1) on rats with diabetic cardiomyopathy (DCM) was evaluated by using nano-liposomes combined with ultrasound-targeted microbubble destruction technique (UTMD). Methods: The FGF1-loaded nano-liposomes were prepared by water-in-water emulsion method combined with lyophilization technique.TypeⅠdiabetes model was induced by intraperitoneal injection of streptozotocin (STZ, 70 mg/kg) in 60 male SD rats.Sixteen weeks later, diabetic rats were randomly divided into: placebo group (saline treatment), FGF1 group, FGF1-loaded nano-liposomes group, and FGF1-loaded nano-liposomes plus UTMD group (n=15 each)...
May 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28510269/kallikrein-related-peptidase-4-induces-cancer-associated-fibroblast-features-in-prostate-derived-stromal-cells
#12
T Kryza, L M Silva, N Bock, R A Fuhrman-Luck, C R Stephens, J Gao, H Samaratunga, M G Lawrence, J D Hooper, Y Dong, G P Risbridger, J A Clements
The reciprocal communication between cancer cells and their microenvironment is critical in cancer progression. Although involvement of cancer-associated fibroblasts (CAF) in cancer progression is long established, the molecular mechanisms leading to differentiation of CAFs from normal fibroblasts are poorly understood. Here, we report that kallikrein-related peptidase-4 (KLK4) promotes CAF differentiation. KLK4 is highly expressed in prostate epithelial cells of premalignant (prostatic intra-epithelial neoplasia) and malignant lesions compared to normal prostate epithelia, especially at the peri-stromal interface...
May 16, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28502041/glucose-can-epigenetically-alter-the-gene-expression-of-neurotrophic-factors-in-the-murine-brain-cells
#13
Md Shamim Hossain, Yutaka Oomura, Toshihiko Katafuchi
Glucose is believed to improve the memory in both human and mice, but the detailed insights were mostly elusive. In this study, we focused on two major neurotrophic factors, brain-derived neurotrophic factor (BDNF) and fibroblast growth factor 1 (FGF1), which are believed to be associated with the memory enhancement and assessed their expressional regulation among the murine neuronal and glial cells. Our findings showed that the glucose administration increased phosphorylated Akt, phosphorylated CREB, exon 1- and exon 4-specific BDNF transcripts, and FGF1 transcripts that are associated with the epigenetic changes expected to open the chromatin and a reduction in histone deacetylase 2 (HDAC2) in neurons and astrocytes of the murine hippocampus...
May 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28469731/integrated-data-analysis-reveals-potential-drivers-and-pathways-disrupted-by-dna-methylation-in-papillary-thyroid-carcinomas
#14
Caroline Moraes Beltrami, Mariana Bisarro Dos Reis, Mateus Camargo Barros-Filho, Fabio Albuquerque Marchi, Hellen Kuasne, Clóvis Antônio Lopes Pinto, Srikant Ambatipudi, Zdenko Herceg, Luiz Paulo Kowalski, Silvia Regina Rogatto
BACKGROUND: Papillary thyroid carcinoma (PTC) is a common endocrine neoplasm with a recent increase in incidence in many countries. Although PTC has been explored by gene expression and DNA methylation studies, the regulatory mechanisms of the methylation on the gene expression was poorly clarified. In this study, DNA methylation profile (Illumina HumanMethylation 450K) of 41 PTC paired with non-neoplastic adjacent tissues (NT) was carried out to identify and contribute to the elucidation of the role of novel genic and intergenic regions beyond those described in the promoter and CpG islands (CGI)...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28454334/taxotere-induced-elevated-expression-of-il8-in-carcinoma-associated-fibroblasts-of-breast-invasive-ductal-cancer
#15
Yingliang Li, Guohua Rong, Hua Kang
Breast cancer is the most common malignant tumor in women worldwide, and accounts for an estimated 29% of new cases and 15% of cancer-associated mortalities each year. Invasive ductal carcinoma represents 70-80% of all breast cancer cases, which are responsible for the majority of breast cancer fatalities. Though great progress has been made in understanding the tumorigenesis and development of breast cancer, problems surrounding treatment persist. It was previously reported that carcinoma-associated fibroblasts (CAFs) may be closely associated with chemotherapy resistance...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454080/relevance-of-ccl3-ccr5-axis-in-oral-carcinogenesis
#16
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)...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28451950/the-role-and-potential-therapeutic-implications-of-the-fibroblast-growth-factors-in-energy-balance-and-type-2-diabetes
#17
REVIEW
Maitane Izaguirre, María J Gil, Ignacio Monreal, Fabrizio Montecucco, Gema Frühbeck, Victoria Catalán
PURPOSE OF REVIEW: Obesity and its associated metabolic diseases have reached epidemic proportions worldwide, reducing life expectancy and quality of life. Several drugs have been tested to treat these diseases but many of them have damaging side effects. Consequently, there is an urgent need to develop more effective therapies. Recently, endocrine fibroblast growth factors (FGFs) have become attractive targets in the treatment of metabolic diseases. This review summarizes their most important functions as well as FGF-based therapies for the treatment of obesity and type 2 diabetes (T2D)...
June 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#18
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28320530/single-cell-rna-sequence-analysis-of-mouse-glomerular-mesangial-cells-uncovers-mesangial-cell-essential-genes
#19
Yuqiu Lu, Yuting Ye, Qianqian Yang, Shaolin Shi
Mesangial cells are essential for the structure and function of glomeruli, but the mechanisms underlying these roles are not well understood. Here, we performed a single-cell RNA-sequence (RNA-seq) analysis of mouse mesangial cells using the Fluidigm C1 platform. We found that gene expression in individual mesangial cells was tremendously heterogeneous, with mean correlation coefficients of 0.20, and most mesangial genes were actually expressed in only a portion of mesangial cells and are therefore presumably dispensable...
March 17, 2017: Kidney International
https://www.readbyqxmd.com/read/28303556/serum-fibroblast-growth-factor-1-is-associated-with-the-decreased-risk-of-obesity-in-human
#20
Jinzhou Zhu, Yuming Wang, Kefu Zhu, Jianguo Gao, Xingyong Wan, Xunlei Pang, Sujuan Fei
As a transducer of PPARγ signaling, recent evidence supports that fibroblast growth factor 1 (FGF1) mediates adipose tissue remodeling and insulin sensitivity. This study is to assess the role of serum FGF1 in obesity. A hospital-based case-control study of 154 subjects was conducted. Serum level of FGF1 was measured by enzyme-linked immunosorbent assay. The serum level of FGF1 in the lean (119.0 [103.1-146.1] pg/ml) was higher than it in the subjects with overweight/obesity (111.9 [80.3-127.4] pg/ml, P=0...
March 16, 2017: Experimental and Clinical Endocrinology & Diabetes
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