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https://www.readbyqxmd.com/read/27884045/retinoic-acid-signaling-regulates-krt5-and-krt14-independently-of-stem-cell-markers-in-submandibular-salivary-gland-epithelium
#1
Timur M Abashev, Melissa A Metzler, Diana M Wright, Lisa L Sandell
BACKGROUND: Retinoic Acid (RA), the active metabolite of Vitamin A, has been demonstrated to be important for growth and branching morphogenesis of mammalian embryonic salivary gland epithelium. However, it is not known whether RA functions directly within epithelial cells or in associated tissues that influence morphogenesis of salivary epithelium. Moreover, downstream targets of RA regulation have not been identified. RESULTS: Here we show that canonical RA signaling occurs in multiple tissues of embryonic mouse salivary glands, including epithelium, associated parasympathetic ganglion neurons, and non-neuronal mesenchyme...
November 24, 2016: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/27863413/rictor-amplification-identifies-a-subgroup-in-small-cell-lung-cancer-and-predicts-response-to-drugs-targeting-mtor
#2
Nneha Sakre, Gary Wildey, Mohadese Behtaj, Adam Kresak, Michael Yang, Pingfu Fu, Afshin Dowlati
Small cell lung cancer (SCLC) is an aggressive cancer that represents ~15% of all lung cancers. Currently there are no targeted therapies to treat SCLC. Our genomic analysis of a metastatic SCLC cohort identified recurrent RICTOR amplification. Here, we examine the translational potential of this observation. RICTOR was the most frequently amplified gene observed (~14% patients), and co-amplified with FGF10 and IL7R on chromosome 5p13. RICTOR copy number variation correlated with RICTOR protein expression in SCLC cells...
November 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27862569/fibroblast-growth-factor-10-markedly-improves-in-vitro-maturation-of-porcine-cumulus-oocyte-complexes
#3
Yeo-Jin Son, Seung-Eun Lee, Hyuk Hyun, Min-Young Shin, Yun-Gwi Park, Sang-Gi Jeong, Eun-Young Kim, Se-Pill Park
Growth factors synthesized by ovarian somatic cells affect cumulus cell expansion and oocyte maturation in vitro. Fibroblast growth factor 10 (FGF10), for example, is a known regulator of mammalian cumulus-oocyte complex maturation. In this study, we investigated the effects of 0, 5, 10, 50, and 100 ng/mL FGF10 (5F, 10F, 50F, and 100F, respectively) on in vitro cumulus cell expansion, oocyte maturation, and embryo development. The percentage of fully expanded cumulus cells at the oocyte's metaphase-II (MII) stage was significantly higher in the 10F-treated group than in the control...
November 11, 2016: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/27833996/expression-of-t-box-transcription-factors-2-4-and-5-is-decreased-in-the-branching-airway-mesenchyme-of-nitrofen-induced-hypoplastic-lungs
#4
Toshiaki Takahashi, Florian Friedmacher, Julia Zimmer, Prem Puri
PURPOSE: Pulmonary hypoplasia (PH), characterized by smaller lung size and reduced airway branching, remains a major therapeutic challenge in newborns with congenital diaphragmatic hernia (CDH). T-box transcription factors (Tbx) have been identified as key components of the gene network that regulates fetal lung development. Tbx2, Tbx4 and Tbx5 are expressed throughout the mesenchyme of the developing lung, regulating the process of lung branching morphogenesis. Furthermore, lungs of Tbx2-, Tbx4- and Tbx5-deficient mice are hypoplastic and exhibit decreased lung branching, similar to PH in human CDH...
November 11, 2016: Pediatric Surgery International
https://www.readbyqxmd.com/read/27826253/multiple-cranial-organ-defects-after-conditionally-knocking-out-fgf10-in-the-neural-crest
#5
Tathyane H N Teshima, Silvia V Lourenco, Abigail S Tucker
Fgf10 is necessary for the development of a number of organs that fail to develop or are reduced in size in the null mutant. Here we have knocked out Fgf10 specifically in the neural crest driven by Wnt1cre. The Wnt1creFgf10fl/fl mouse phenocopies many of the null mutant defects, including cleft palate, loss of salivary glands, and ocular glands, highlighting the neural crest origin of the Fgf10 expressing mesenchyme surrounding these organs. In contrast tissues such as the limbs and lungs, where Fgf10 is expressed by the surrounding mesoderm, were unaffected, as was the pituitary gland where Fgf10 is expressed by the neuroepithelium...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27803896/roles-of-fgf-signals-in-heart-development-health-and-disease
#6
REVIEW
Nobuyuki Itoh, Hiroya Ohta, Yoshiaki Nakayama, Morichika Konishi
The heart provides the body with oxygen and nutrients and assists in the removal of metabolic waste through the blood vessels of the circulatory system. It is the first organ to form during embryonic morphogenesis. FGFs with diverse functions in development, health, and disease are signaling proteins, mostly as paracrine growth factors or endocrine hormones. The human/mouse FGF family comprises 22 members. Findings obtained from mouse models and human diseases with FGF signaling disorders have indicated that several FGFs are involved in heart development, health, and disease...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27787597/stromal-factors-involved-in-human-prostate-cancer-development-progression-and-castration-resistance
#7
Noemi Eiro, Jesus Fernandez-Gomez, Raquel Sacristán, Belen Fernandez-Garcia, Beatriz Lobo, Jorge Gonzalez-Suarez, Alejandro Quintas, Safwan Escaf, Francisco J Vizoso
PURPOSE: To detect new predictive markers from the prostate cancer tissue, to study the expression by cultured cancer-associated fibroblasts (CAFs) of stromal factors implicated in prostate carcinogenesis, and to compare their expressions in localized, metastatic, castration-sensitive (CSCP), castration-resistant prostate tumors (CRCP) as well as in fibroblasts from benign prostatic hyperplasia (BPH). MATERIALS AND METHODS: The genomic expression of 20 stroma-derived factors, including the androgen receptor (AR), growth factors (FGF2, FGF7, FGF10, HGF, TGFβ, PDGFB), protein implicated in invasion (MMP-2, MMP-9 and MMP-11), inflammation (IL-6, IL-17, STAT-3 and NFκB), stroma/epithelium interaction (CDH11, FAP, CXCL12 and CXCL14) and chaperones (HPA1A and HSF1), was evaluated in cultured fibroblasts both from BHP and prostate carcinomas (PCa)...
October 27, 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27771497/negative-effects-of-retinoic-acid-on-stem-cell-niche-of-mouse-incisor
#8
Jinlei Xi, Shijing He, Cizhao Wei, Wanyao Shen, Juan Liu, Ke Li, Yufeng Zhang, Jiang Yue, Zheqiong Yang
The continuous growth of mouse incisors depends on epithelial stem cells (SCs) residing in the SC niche, called labial cervical loop (LaCL). The homeostasis of the SCs is subtly regulated by complex signaling networks. In this study, we focus on retinoic acid (RA), a derivative of Vitamin A and a known pivotal signaling molecule in controlling the functions of stem cells (SCs). We analyzed the expression profiles of several key molecules of the RA signaling pathway in cultured incisor explants upon exogenous RA treatment...
September 29, 2016: Stem Cell Research
https://www.readbyqxmd.com/read/27770432/fgf10-deficiency-is-causative-for-lethality-in-a-mouse-model-of-bronchopulmonary-dysplasia
#9
Cho-Ming Chao, Faady Yahya, Alena Moiseenko, Caterina Tiozzo, Amit Shrestha, Negah Ahmadvand, Elie El Agha, Jennifer Quantius, Salma Dilai, Vahid Kheirollahi, Matthew Jones, Jochen Wilhem, Gianni Carraro, Harald Ehrhardt, Klaus-Peter Zimmer, Guillermo Barreto, Katrin Ahlbrecht, Rory E Morty, Susanne Herold, Rosanna G Abellar, Werner Seeger, Ralph Schermuly, Jin-San Zhang, Parviz Minoo, Saverio Bellusci
Inflammation-induced FGF10 protein deficiency is associated with bronchopulmonary dysplasia (BPD), a chronic lung disease of prematurely born infants characterized by arrested alveolar development. So far, experimental evidence for a direct role of FGF10 in lung disease is lacking. Using the hyperoxia-induced neonatal lung injury as a mouse model of BPD, the impact of Fgf10 deficiency in Fgf10(+/-) versus Fgf10(+/+) pups was investigated. In normoxia, no lethality of Fgf10(+/+) or Fgf10(+/-) pups was observed...
October 22, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27765763/rac1-modulates-mammalian-lung-branching-morphogenesis-in-part-through-canonical-wnt-signaling
#10
Soula Danopoulos, Michael Krainock, Omar Toubat, Matthew Thornton, Brendan Grubbs, Denise Al Alam
Lung branching morphogenesis relies on a number of factors, including proper epithelial cell proliferation and differentiation, cell polarity and migration. Rac1, a small Rho GTPase, orchestrates a number of these cellular processes, including cell proliferation and differentiation, cellular alignment and polarization. Furthermore, Rac1 modulates both non-canonical and canonical Wnt signaling, important pathways in lung branching morphogenesis. Culture of embryonic mouse lung explants in the presence of the Rac1 inhibitor (NSC23766) resulted in a dose-dependent decrease in branching...
October 7, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27742760/interrogation-of-a-lacrimo-auriculo-dento-digital-syndrome-protein-reveals-novel-modes-of-fibroblast-growth-factor-10-fgf10-function
#11
Marta Mikolajczak, Timothy Goodman, Mohammad K Hajihosseini
Heterozygous mutations in the gene encoding fibroblast growth factor 10 (FGF10) or its cognate receptor, FGF-receptor 2 IIIb (FGFR2-IIIb) result in two human syndromes - LADD (lacrimo-auriculo-dento-digital) and ALSG (Aplasia of lacrimal and salivary glands). To date, the partial loss-of-FGF10 function in these patients has been attributed solely to perturbed paracrine signalling functions between FGF10-producing mesenchymal cells and FGF10-responsive epithelial cells. However, the functioning of a LADD-causing G138E FGF10 mutation, which falls outside its receptor interaction interface, has remained enigmatic...
October 14, 2016: Biochemical Journal
https://www.readbyqxmd.com/read/27706598/defective-eyelid-leading-edge-cell-migration-in-c57bl-6-corneal-opacity-mice-with-an-eye-open-at-birth-phenotype
#12
L C Wu, C Liu, M R Jiang, Y M Jiang, Q H Wang, Z Y Lu, S J Wang, W L Yang, Y X Shao
Development of the eyelid requires coordination of the cellular processes involved in proliferation, cell size alteration, migration, and cell death. C57BL/6J-corneal opacity (B6-Co) mice are mutant mice generated by the administration of N-ethyl-N-nitrosourea (100 mg/kg). They exhibit the eyelids open at birth phenotype, abnormal round cell shape from tightened F-actin bundles in leading edge keratinocytes at E16.5, and gradual corneal opacity with neovessels. The tip of the leading edge in B6-Co mice did not move forward, and demonstrated a sharp peak shape without obvious directionality...
August 26, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27679811/adult-neurogenesis-in-the-female-mouse-hypothalamus-estradiol-and-high-fat-diet-alter-the-generation-of-newborn-neurons-expressing-estrogen-receptor-%C3%AE
#13
Elizabeth P Bless, Jane Yang, Kalpana D Acharya, Sabin A Nettles, Fair M Vassoler, Elizabeth M Byrnes, Marc J Tetel
Estrogens and leptins act in the hypothalamus to maintain reproduction and energy homeostasis. Neurogenesis in the adult mammalian hypothalamus has been implicated in the regulation of energy homeostasis. Recently, high-fat diet (HFD) and estradiol (E2) have been shown to alter cell proliferation and the number of newborn leptin-responsive neurons in the hypothalamus of adult female mice. The current study tested the hypothesis that new cells expressing estrogen receptor α (ERα) are generated in the arcuate nucleus (ARC) and the ventromedial nucleus of the hypothalamus (VMH) of the adult female mouse, hypothalamic regions that are critical in energy homeostasis...
July 2016: ENeuro
https://www.readbyqxmd.com/read/27640304/evidence-that-the-5p12-variant-rs10941679-confers-susceptibility-to-estrogen-receptor-positive-breast-cancer-through-fgf10-and-mrps30-regulation
#14
Maya Ghoussaini, Juliet D French, Kyriaki Michailidou, Silje Nord, Jonathan Beesley, Sander Canisus, Kristine M Hillman, Susanne Kaufmann, Haran Sivakumaran, Mahdi Moradi Marjaneh, Jason S Lee, Joe Dennis, Manjeet K Bolla, Qin Wang, Ed Dicks, Roger L Milne, John L Hopper, Melissa C Southey, Marjanka K Schmidt, Annegien Broeks, Kenneth Muir, Artitaya Lophatananon, Peter A Fasching, Matthias W Beckmann, Olivia Fletcher, Nichola Johnson, Elinor J Sawyer, Ian Tomlinson, Barbara Burwinkel, Frederik Marme, Pascal Guénel, Thérèse Truong, Stig E Bojesen, Henrik Flyger, Javier Benitez, Anna González-Neira, M Rosario Alonso, Guillermo Pita, Susan L Neuhausen, Hoda Anton-Culver, Hermann Brenner, Volker Arndt, Alfons Meindl, Rita K Schmutzler, Hiltrud Brauch, Ute Hamann, Daniel C Tessier, Daniel Vincent, Heli Nevanlinna, Sofia Khan, Keitaro Matsuo, Hidemi Ito, Thilo Dörk, Natalia V Bogdanova, Annika Lindblom, Sara Margolin, Arto Mannermaa, Veli-Matti Kosma, Anna H Wu, David Van Den Berg, Diether Lambrechts, Giuseppe Floris, Jenny Chang-Claude, Anja Rudolph, Paolo Radice, Monica Barile, Fergus J Couch, Emily Hallberg, Graham G Giles, Christopher A Haiman, Loic Le Marchand, Mark S Goldberg, Soo H Teo, Cheng Har Yip, Anne-Lise Borresen-Dale, Wei Zheng, Qiuyin Cai, Robert Winqvist, Katri Pylkäs, Irene L Andrulis, Peter Devilee, Rob A E M Tollenaar, Montserrat García-Closas, Jonine Figueroa, Per Hall, Kamila Czene, Judith S Brand, Hatef Darabi, Mikael Eriksson, Maartje J Hooning, Linetta B Koppert, Jingmei Li, Xiao-Ou Shu, Ying Zheng, Angela Cox, Simon S Cross, Mitul Shah, Valerie Rhenius, Ji-Yeob Choi, Daehee Kang, Mikael Hartman, Kee Seng Chia, Maria Kabisch, Diana Torres, Craig Luccarini, Don M Conroy, Anna Jakubowska, Jan Lubinski, Suleeporn Sangrajrang, Paul Brennan, Curtis Olswold, Susan Slager, Chen-Yang Shen, Ming-Feng Hou, Anthony Swerdlow, Minouk J Schoemaker, Jacques Simard, Paul D P Pharoah, Vessela Kristensen, Georgia Chenevix-Trench, Douglas F Easton, Alison M Dunning, Stacey L Edwards
Genome-wide association studies (GWASs) have revealed increased breast cancer risk associated with multiple genetic variants at 5p12. Here, we report the fine mapping of this locus using data from 104,660 subjects from 50 case-control studies in the Breast Cancer Association Consortium (BCAC). With data for 3,365 genotyped and imputed SNPs across a 1 Mb region (positions 44,394,495-45,364,167; NCBI build 37), we found evidence for at least three independent signals: the strongest signal, consisting of a single SNP rs10941679, was associated with risk of estrogen-receptor-positive (ER(+)) breast cancer (per-g allele OR ER(+) = 1...
October 6, 2016: American Journal of Human Genetics
https://www.readbyqxmd.com/read/27625023/hif-1%C3%AE-in-myeloid-cells-promotes-adipose-tissue-remodeling-toward-insulin-resistance
#15
Akiko Takikawa, Arshad Mahmood, Allah Nawaz, Tomonobu Kado, Keisuke Okabe, Seiji Yamamoto, Aminuddin Aminuddin, Satoko Senda, Koichi Tsuneyama, Masashi Ikutani, Yasuharu Watanabe, Yoshiko Igarashi, Yoshinori Nagai, Kiyoshi Takatsu, Keiichi Koizumi, Johji Imura, Nobuhito Goda, Masakiyo Sasahara, Michihiro Matsumoto, Kumiko Saeki, Takashi Nakagawa, Shiho Fujisaka, Isao Usui, Kazuyuki Tobe
Adipose tissue hypoxia is an important feature of pathological adipose tissue expansion. Hypoxia-inducible factor-1α (HIF-1α) in adipocytes reportedly induces oxidative stress and fibrosis, rather than neoangiogenesis via vascular endothelial growth factor (VEGF)-A. We previously reported that macrophages in crown-like structures (CLSs) are both hypoxic and inflammatory. In the current study, we examined how macrophage HIF-1α is involved in high-fat diet (HFD)-induced inflammation, neovascularization, hypoxia, and insulin resistance using mice with myeloid cell-specific HIF-1α deletion that were fed an HFD...
December 2016: Diabetes
https://www.readbyqxmd.com/read/27590203/fgf-and-eda-pathways-control-initiation-and-branching-of-distinct-subsets-of-developing-nasal-glands
#16
Alison J May, Denis Headon, David P Rice, Alistair Noble, Abigail S Tucker
Hypertrophy, hyperplasia and altered mucus secretion from the respiratory submucosal glands (SMG) are characteristics of airway diseases such as cystic fibrosis, asthma and chronic bronchitis. More commonly, hyper-secretion of the nasal SMGs contributes to allergic rhinitis and upper airway infection. Considering the role of these glands in disease states, there is a significant dearth in understanding the molecular signals that regulate SMG development and patterning. Due to the imperative role of FGF signalling during the development of other branched structures, we investigated the role of Fgf10 during initiation and branching morphogenesis of murine nasal SMGs...
August 30, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27572477/distribution-of-fibroblast-growth-factors-and-their-roles-in-skin-fibroblast-cell-migration
#17
Yong Huan Song, Yu Ting Zhu, Jian Ding, Fei Ya Zhou, Ji Xin Xue, Jin Hee Jung, Zhi Jie Li, Wei Yang Gao
Fibroblast growth factor (FGF)2/basic FGF is a member of the fibroblast growth factor family. Its function in skin wound healing has been well-characterized. However, the function of other FGFs in skin tissues remains to be elucidated. In the present study, FGF expression patterns in heart, liver, skin and kidney tissues were analyzed. Notably, in contrast to other tissues, only four FGFs, FGF2, 7, 10 and 21, were dominant in the skin. To examine FGF function in the wound healing process, mouse NIH3T3 fibroblast cells were treated with FGF2, FGF10 and FGF21, and cell migration was monitored...
October 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27510750/sonic-hedgehog-protein-regulates-fibroblast-growth-factor-8-expression-in-metanephric-explant-culture-from-balb-c-mice-possible-mechanisms-associated-with-renal-morphogenesis
#18
Xing Chen, Xiao-Ming Hou, You-Fei Fan, Yu-Ting Jin, Yu-Lin Wang
The sonic hedgehog (SHH) morphogen regulates cell differentiation and controls a number of genes during renal morphogenesis. To date, the effects of SHH on fibroblast growth factors (Fgfs) in embryonic kidney development remain unclear. In the present study, explants of BALB/c mouse embryonic kidney tissues were used to investigate the role of exogenous SHH on Fgf8 and Fgf10 expression levels ex vivo. Ureteric bud branches and epithelial metanephric derivatives were used to determine the renal morphogenesis with Dolichos biflorus agglutinin or hematoxylin‑eosin staining...
October 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27466206/molecular-developmental-mechanism-in-polypterid-fish-provides-insight-into-the-origin-of-vertebrate-lungs
#19
Norifumi Tatsumi, Ritsuko Kobayashi, Tohru Yano, Masatsugu Noda, Koji Fujimura, Norihiro Okada, Masataka Okabe
The lung is an important organ for air breathing in tetrapods and originated well before the terrestrialization of vertebrates. Therefore, to better understand lung evolution, we investigated lung development in the extant basal actinopterygian fish Senegal bichir (Polypterus senegalus). First, we histologically confirmed that lung development in this species is very similar to that of tetrapods. We also found that the mesenchymal expression patterns of three genes that are known to play important roles in early lung development in tetrapods (Fgf10, Tbx4, and Tbx5) were quite similar to those of tetrapods...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27412358/fibroblast-growth-factors-new-insights-new-targets-in-the-management-of-diabetes
#20
Ioannis Kyrou, Martin O Weickert, Seley Gharanei, Harpal S Randeva, Bee K Tan
The fibroblast growth factor (FGF) family consists of 22 evolutionarily and structurally related proteins (FGF1 to FGF23; with FGF15 being the rodent ortholog of human FGF19). Based on their mechanism of action, FGFs can be categorized into intracrine, autocrine/paracrine and endocrine subgroups. Both autocrine/paracrine and endocrine FGFs are secreted from their cells of origin and exert their effects on target cells by binding to and activating specific single-pass transmembrane tyrosine kinase receptors (FGFRs)...
July 14, 2016: Minerva Endocrinologica
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