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https://www.readbyqxmd.com/read/29775757/molecular-characterization-of-physis-tissue-by-rna-sequencing
#1
Christopher R Paradise, Catalina Galeano-Garces, Daniela Galeano-Garces, Amel Dudakovic, Todd A Milbrandt, Daniel B F Saris, Aaron J Krych, Marcel Karperien, Gabriel B Ferguson, Denis Evseenko, Scott M Riester, Andre J van Wijnen, A Noelle Larson
The physis is a well-established and anatomically distinct cartilaginous structure that is crucial for normal long-bone development and growth. Abnormalities in physis function are linked to growth plate disorders and other pediatric musculoskeletal diseases. Understanding the molecular pathways operative in the physis may permit development of regenerative therapies to complement surgically-based procedures that are the current standard of care for growth plate disorders. Here, we performed next generation RNA sequencing on mRNA isolated from human physis and other skeletal tissues (e...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29770509/molecular-characteristics-of-granulosa-and-cumulus-cells-and-oocyte-competence-in-nelore-cows-with-low-and-high-numbers-of-antral-follicles
#2
C O Rosa, Lsr Marinho, Pra da Rosa, M P De Cesaro, P A Lunardelli, K C Silva-Santos, A C Basso, V Bordignon, M M Seneda
The aims of this study were to investigate whether the number of antral follicles (AF) in the ovaries of Nelore cows is influenced with the developmental competence of oocytes to reach the blastocyst stage and to quantify the mRNA abundance of genes associated with folliculogenesis and oogenesis in granulosa and cumulus cells. A total of 168 cows were distributed into two experimental groups according to the number of AF, low (≤31) and high AF (≥92), which were determined based on the mean number of AF (61...
May 16, 2018: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/29769162/increased-pregnancy-losses-following-serial-somatic-cell-nuclear-transfer-in-goats
#3
Min Yang, Iuri Perisse, Zhiqiang Fan, Misha Regouski, Mirella Meyer-Ficca, Irina A Polejaeva
Serial cloning by somatic cell nuclear transfer (SCNT) is a critical tool for the expansion of precious transgenic lines or resetting the lifespan of primary transgenic cells for multiple genetic modifications. We successfully produced second-generation cloned goats using donor neonatal fibroblasts from first-generation clones. However, our attempts to produce any third-generation clones failed. SCNT efficiency decreased progressively with the clonal generations. The rate of pregnancy loss was significantly greater in recloning groups (P<0...
May 17, 2018: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/29758198/the-lncrna-tug1-mir-145-5p-fgf10-regulates-proliferation-and-migration-in-vsmcs-of-hypertension
#4
Lin Shi, Caijun Tian, Lingzhi Sun, Feifei Cao, Zhaoyang Meng
Vascular remodeling is a characteristic pathological feature of hypertension, it can cause of increasing vascular resistance and decrease of compliance. Vascular smooth muscle cell (VSMCs) dysfunction is the important foundation of vascular remodeling. Increasing evidences have revealed that lncRNA is an important regulatory factor of VSMC function. In this paper, we explored the function of lncRNA TUG1 in vascular remodeling of hypertension. Here, we found that lncRNA TUG1 was highly expressed in aorta of spontaneously hypertensive rats (SHR) rats and promoted the proliferation and migration of VSMCs (SHR-VSMCs)...
May 11, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29748005/genomic-alterations-of-plasma-cell-free-dnas-in-small-cell-lung-cancer-and-their-clinical-relevance
#5
Meijun Du, Jonathan Thompson, Hannah Fisher, Peng Zhang, Chiang-Ching Huang, Liang Wang
OBJECTIVES: To identify genomic variations in cell-free DNA (cfDNA) and evaluate their clinical utility in small cell lung cancer (SCLC). MATERIALS AND METHODS: We performed whole genome sequencing using plasma cfDNAs derived from 24 SCLC patients for copy number variation (CNV) analysis, and targeted sequencing using 17 pairs of plasma cfDNA and their matched gDNA for mutation analysis. We defined somatic mutations by comparing cfDNA to its matched gDNA with 5% variant alleles as the cutoff for mutation calls...
June 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29732364/impaired-fgf10-signaling-and-epithelial-development-in-experimental-lung-hypoplasia-with-esophageal-atresia
#6
Jun Wang, Hao Liu, Linlin Gao, Xiaomei Liu
Patients with esophageal atresia (EA) and tracheoesophageal fistula (TEF) often experience persistent respiratory tract disease. In experimental models, doxorubicin-induced developmental lung abnormalities may result from downregulation of branching morphogenesis factor fibroblast growth factor (Fgf10). This study investigated the temporospatial expression of Fgf10 pathway components and lung epithelial factors in an doxorubicin-induced EA-TEF model by quantitative polymerase chain reaction, immunohistochemistry, and immunoblotting...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29722558/is-fibroblast-growth-factor-signaling-pathway-a-victim-of-receptor-tyrosine-kinase-inhibition-in-pulmonary-parenchymal-and-vascular-remodeling
#7
Elie El Agha, Felix Schwind, Clemens Ruppert, Andreas Günther, Saverio Bellusci, Ralph Theo Schermuly, Djuro Kosanovic
Idiopathic pulmonary arterial hypertension (IPAH), pulmonary hypertension (PH) due to lung disease and/or hypoxia and idiopathic pulmonary fibrosis (IPF) are increasingly recognized as important contributors to mortality and morbidity worldwide. Among others, the current treatment paradigm considers broad inhibition of receptor tyrosine kinases, a strategy that likely leads to collateral inhibition of signaling pathways that are critical for lung repair and regeneration. Fibroblast growth factor 7 (FGF7) and FGF10 signaling in the lung through FGF receptor 2 (FGFR2) are involved in epithelial cell protection and renewal, and mutations in their corresponding genes in humans are linked to increased susceptibility to lung pathologies such as chronic obstructive pulmonary disease and bronchopulmonary dysplasia...
May 3, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29700203/multiple-roles-of-epithelial-heparan-sulfate-in-stomach-morphogenesis
#8
Meina Huang, Hua He, Tatyana Belenkaya, Xinhua Lin
Heparan sulfate proteoglycans (HSPGs) have been shown to regulate various developmental processes. However, the function of heparan sulfate (HS) in the development of mammalian stomach has not been characterized yet. Here we investigate the role of epithelial HS in embryonic stomach by examining glycosyltransferase gene Exostoses (multiple) 1 ( Ext1 )-deficient mice. We show that HS exhibits specific and dynamic expression pattern in mouse embryonic stomach. Depletion of the epithelial HS leads to stomach hypoplasia with phenotypic differences in the gastric mucosa between forestomach and hindstomach...
April 26, 2018: Journal of Cell Science
https://www.readbyqxmd.com/read/29670907/improvement-activity-of-1-deoxynojirimycin-in-the-growth-of-dairy-goat-primary-mammary-epithelial-cell-through-upregulating-lef-1-expression
#9
Shengyue Ji, Ming Liu, Yuping Zhang, Hongfu Zhang
LEF-1/wnt10b is one of the most important signaling pathways regulating mammary gland growth and development and is also a potential target for molecular breeding. In this work, 1-deoxynojirimycin (DNJ), a natural alkaloid extracted from plant mulberry or microorganism, was found to have a positive activity in primary breast epithelial cell growth of dairy goats. The findings showed that, compared to the control, 6  μ M DNJ in the DMEM/F12 medium in vitro greatly improved the density of dairy goat breast epithelial cell and significantly increased the LEF-1 mRNA level ( P < 0...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29656749/tumor-associated-macrophages-support-the-growth-of-fgf9-induced-lung-adenocarcinoma-by-multiple-mechanisms
#10
Ahmed E Hegab, Mari Ozaki, Shizuko Kagawa, Junko Hamamoto, Hiroyuki Yasuda, Katsuhiko Naoki, Kenzo Soejima, Yongjun Yin, Tomonari Kinoshita, Tomonori Yaguchi, Yutaka Kawakami, David M Ornitz, Tomoko Betsuyaku
OBJECTIVES: Tumor-associated macrophages (TAMs) are known to promote tumorigenesis but the mechanism(s) remain elusive. We have developed a mouse model of lung cancer that is initiated through an inducible overexpression of fibroblast growth factor 9 (FGF9) in type-2 pneumocytes. Expression of FGF9 in adult lungs resulted in a rapid development of multiple adenocarcinoma-like tumor nodules, and is associated with an intense immunological reaction. The purpose of this study is to characterize the immune response to the FGF9-induced lung adenocarcinoma and to determine the contribution of TAMs to growth and survival of these tumors...
May 2018: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/29581982/tgf-%C3%AE-overexpression-in-breast-cancer-bone-metastasis-and-primary-lesions-and-tgf-%C3%AE-enhancement-of-expression-of-procancer-metastasis-cytokines-in-bone-marrow-mesenchymal-stem-cells
#11
Jingbo Sun, Haiyan Cui, Yanxin Gao, Yangjian Pan, Kun Zhou, Jingzhan Huang, Jin Lan, Qingzhu Wei, Xiaolong Liu, Lixin Liu, Cory J Xian
Bone metastasis (BM) is the advanced complication of breast cancer, while bone marrow-derived mesenchymal stem cells (BMSCs) in the microenvironment unclearly contribute to cancer metastasis. This study investigated potential roles of transforming growth factor- (TGF-) α in the interaction between breast cancer and BMSCs in BM. Clinical cases of breast cancer with bone metastasis (BMBC), breast cancer without bone metastasis (Non-BM-BC), and benign fibroadenoma (Benign) were enlisted in a retrospective study...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29569790/hypoxia-activated-adipose-mesenchymal-stem-cells-prevents-irradiation-induced-salivary-hypofunction-by-enhanced-paracrine-effect-through-fgf10
#12
Hyun-Soo Shin, Songyi Lee, Young-Mo Kim, Jae-Yol Lim
PURPOSE: To explore the effects and mechanisms of paracrine factors secreted from human adipose mesenchymal stem cells (hAdMSCs) that are activated by hypoxia on radioprotection against irradiation-induced salivary hypofunction in subjects undergoing radiotherapy for head and neck cancers. MATERIALS AND METHODS: An organotypic spheroid coculture model to mimic IR-induced salivary hypofunction was set up for in vitro experiments. Human parotid gland epithelial cells were organized to form three-dimensional acinus-like spheroids on growth factor reduced (GFR)-Matrigel...
March 23, 2018: Stem Cells
https://www.readbyqxmd.com/read/29540482/pharmacologically-targeting-the-myristoylation-of-the-scaffold-protein-frs2%C3%AE-inhibits-fgf-fgfr-mediated-oncogenic-signaling-and-tumor-progression
#13
Qianjin Li, Omar Awad Alsaidan, Yongjie Ma, Sungjin Kim, Junchen Liu, Thomas Albers, Kebin Liu, Zanna Beharry, Shaying Zhao, Fen Wang, Iryna Lebedyeva, Houjian Cai
Fibroblast growth factor (FGF)/FGF receptor (FGFR) signaling facilitates tumor initiation and progression. Although currently approved inhibitors of FGFR kinase have shown therapeutic benefit in clinical trials, over-expression or mutations of FGFRs eventually confer drug resistance and thereby abrogate the desired activity of kinase inhibitors in many cancer types. In this study, we report that loss of myristoylation of fibroblast growth factor receptor substrate 2 (FRS2α), a scaffold protein essential for FGFR signaling, inhibits FGF/FGFR-mediated oncogenic signaling and FGF10-induced tumorigenesis...
March 14, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29467455/lack-of-cystic-fibrosis-transmembrane-conductance-regulator-disrupts-fetal-airway-development-in-pigs
#14
David K Meyerholz, David A Stoltz, Nick D Gansemer, Sarah E Ernst, Daniel P Cook, Matthew D Strub, Erica N LeClair, Carrie K Barker, Ryan J Adam, Mariah R Leidinger, Katherine N Gibson-Corley, Philip H Karp, Michael J Welsh, Paul B McCray
Loss of cystic fibrosis transmembrane conductance regulator (CFTR) function causes cystic fibrosis (CF), predisposing the lungs to chronic infection and inflammation. In young infants with CF, structural airway defects are increasingly recognized before the onset of significant lung disease, which suggests a developmental origin and a possible role in lung disease pathogenesis. The role(s) of CFTR in lung development is unclear and developmental studies in humans with CF are not feasible. Young CF pigs have structural airway changes and develop spontaneous postnatal lung disease similar to humans; therefore, we studied lung development in the pig model (non-CF and CF)...
February 21, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29444487/paracrine-fibroblast-growth-factor-initiates-oncogenic-synergy-with-epithelial-fgfr-src-transformation-in-prostate-tumor-progression
#15
Qianjin Li, Lishann Ingram, Sungjin Kim, Zanna Beharry, Jonathan A Cooper, Houjian Cai
Cross talk of stromal-epithelial cells plays an essential role in both normal development and tumor initiation and progression. Fibroblast growth factor (FGF)-FGF receptor (FGFR)-Src kinase axis is one of the major signal transduction pathways to mediate this cross talk. Numerous genomic studies have demonstrated that expression levels of FGFR/Src are deregulated in a variety of cancers including prostate cancer; however, the role that paracrine FGF (from stromal cells) plays in dysregulated expression of epithelial FGFRs/Src and tumor progression in vivo is not well evaluated...
March 2018: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29408236/the-strength-of-mechanical-forces-determines-the-differentiation-of-alveolar-epithelial-cells
#16
Jiao Li, Zheng Wang, Qiqi Chu, Kewu Jiang, Juan Li, Nan Tang
The differentiation of alveolar epithelial type I (AT1) and type II (AT2) cells is essential for the lung gas exchange function. Disruption of this process results in neonatal death or in severe lung diseases that last into adulthood. We developed live imaging techniques to characterize the mechanisms that control alveolar epithelial cell differentiation. We discovered that mechanical forces generated from the inhalation of amniotic fluid by fetal breathing movements are essential for AT1 cell differentiation...
February 5, 2018: Developmental Cell
https://www.readbyqxmd.com/read/29372690/association-of-single-nucleotide-polymorphisms-in-fgf-ras-map-signalling-cascade-with-breast-cancer-susceptibility
#17
Zuzana Dankova, Pavol Zubor, Marian Grendar, Andrea Kapinova, Katarina Zelinova, Mariana Jagelkova, Alexandra Gondova, Karol Dokus, Michal Kalman, Zora Lasabova, Jan Danko
The fibroblast growth factor receptors (FGFRs) and Ras/mitogen activated protein (RAS/MAP) signalling cascades are the main molecular pathways involved in breast carcinogenesis. This study aims to determine the association between FGF10 (rs4415084 C>T), FGFR2 (rs2981582 C>T) and MAP3K1 (rs889312 A>C) gene polymorphisms and breast cancer, to analyse the discriminative ability of each SNP and to test the accuracy of the predictive breast cancer risk model which includes all SNPs. We conducted a case-control study of 170 women (57...
December 2017: General Physiology and Biophysics
https://www.readbyqxmd.com/read/29361553/a-branching-morphogenesis-program-governs-embryonic-growth-of-the-thyroid-gland
#18
Shawn Liang, Ellen Johansson, Guillermo Barila, Daniel L Altschuler, Henrik Fagman, Mikael Nilsson
The developmental program that regulates thyroid progenitor cell proliferation is largely unknown. Here, we show that branching-like morphogenesis is a driving force to attain final size of the embryonic thyroid gland in mice. Sox9, a key factor in branching organ development, distinguishes Nkx2-1+ cells in the thyroid bud from the progenitors that originally form the thyroid placode in anterior endoderm. As lobes develop the thyroid primordial tissue branches several generations. Sox9 and Fgfr2b are co-expressed distally in the branching epithelium prior to folliculogenesis...
January 25, 2018: Development
https://www.readbyqxmd.com/read/29339516/human-airway-branch-variation-and-chronic-obstructive-pulmonary-disease
#19
Benjamin M Smith, Hussein Traboulsi, John H M Austin, Ani Manichaikul, Eric A Hoffman, Eugene R Bleecker, Wellington V Cardoso, Christopher Cooper, David J Couper, Stephen M Dashnaw, Jia Guo, MeiLan K Han, Nadia N Hansel, Emlyn W Hughes, David R Jacobs, Richard E Kanner, Joel D Kaufman, Eric Kleerup, Ching-Long Lin, Kiang Liu, Christian M Lo Cascio, Fernando J Martinez, Jennifer N Nguyen, Martin R Prince, Stephen Rennard, Stephen S Rich, Leora Simon, Yanping Sun, Karol E Watson, Prescott G Woodruff, Carolyn J Baglole, R Graham Barr
Susceptibility to chronic obstructive pulmonary disease (COPD) beyond cigarette smoking is incompletely understood, although several genetic variants associated with COPD are known to regulate airway branch development. We demonstrate that in vivo central airway branch variants are present in 26.5% of the general population, are unchanged over 10 y, and exhibit strong familial aggregation. The most common airway branch variant is associated with COPD in two cohorts ( n = 5,054), with greater central airway bifurcation density, and with emphysema throughout the lung...
January 30, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29329973/altered-gene-expression-in-tree-shrew-retina-and-retinal-pigment-epithelium-produced-by-short-periods-of-minus-lens-wear
#20
Li He, Michael R Frost, John T Siegwart, Thomas T Norton
Hyperopic refractive error is detected by retinal neurons, which generate GO signals through a direct emmetropization signaling cascade: retinal pigment epithelium (RPE) into choroid and then into sclera, thereby increasing axial elongation. To examine signaling early in this cascade, we measured gene expression in the retina and RPE after short exposure to hyperopia produced by minus-lens wear. Gene expression in each tissue was compared with gene expression in combined retina + RPE. Starting 24 days after normal eye opening, three groups of juvenile tree shrews (n = 7 each) wore a monocular -5 D lens...
March 2018: Experimental Eye Research
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