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Foxj1

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https://www.readbyqxmd.com/read/28746823/irx1-regulates-dental-outer-enamel-epithelial-and-lung-alveolar-type-ii-epithelial-differentiation
#1
Wenjie Yu, Xiao Li, Steven Eliason, Miguel Romero-Bustillos, Ryan J Ries, Huojun Cao, Brad A Amendt
The Iroquois genes (Irx) appear to regulate fundamental processes that lead to cell proliferation, differentiation, and maturation during development. In this report, the Iroquois homeobox 1 (Irx1) transcription factor was functionally disrupted using a LacZ insert and LacZ expression demonstrated stage-specific expression during embryogenesis. Irx1 is highly expressed in the brain, lung, digits, kidney, testis and developing teeth. Irx1 null mice are neonatal lethal and this lethality it due to pulmonary immaturity...
September 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28719464/nuclear-crx-and-foxj1-expression-differentiates-non-germ-cell-pineal-region-tumors-and-supports-the-ependymal-differentiation-of-papillary-tumor-of-the-pineal-region
#2
Shannon Coy, Adrian M Dubuc, Sonika Dahiya, Keith L Ligon, Alexandre Vasiljevic, Sandro Santagata
Papillary tumor of the pineal region (PTPR) is a neuroepithelial neoplasm first described in 2003. Despite the anatomic association of PTPR with the pineal gland, the features of these tumors resemble those of the ependymal circumventricular subcommissural organ (SCO) of the posterior third ventricle. Given the presumed distinct derivation of PTPR and pineal parenchymal tumors, we hypothesized that expression of lineage-specific transcription factors could distinguish these tumors and provide additional insight into the differentiation of PTPR...
July 17, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28698301/prdm16-is-required-for-the-maintenance-of-neural-stem-cells-in-the-postnatal-forebrain-and-their-differentiation-into-ependymal-cells
#3
Issei S Shimada, Melih Acar, Rebecca J Burgess, Zhiyu Zhao, Sean J Morrison
We and others showed previously that PR domain-containing 16 (Prdm16) is a transcriptional regulator required for stem cell function in multiple fetal and neonatal tissues, including the nervous system. However, Prdm16 germline knockout mice died neonatally, preventing us from testing whether Prdm16 is also required for adult stem cell function. Here we demonstrate that Prdm16 is required for neural stem cell maintenance and neurogenesis in the adult lateral ventricle subventricular zone and dentate gyrus. We also discovered that Prdm16 is required for the formation of ciliated ependymal cells in the lateral ventricle...
June 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28676722/the-role-of-the-notch-signal-pathway-in-mucosal-cell-metaplasia-in-mouse-acute-otitis-media
#4
Xiang Liu, Ning Cong, Xiang Cheng, Rui Ma, Jing Wang, Yi-Bo Huang, Meng Zhao, Xin-Wei Wang, Fang-Lu Chi, Dong-Dong Ren
Otitis media (OM) is a major cause of morbidity in pediatric and adult patients. This inflammatory condition is characterized by mucous cell hyperplasia that is thought to produce mucins from the middle ear mucosa. We are interested in the role of Notch signalling pathway in this inflammatory process. Using an acute otitis media (AOM) mouse model through injection of Streptococcus Pneumoniae into the middle ear, histopathologic examination and quantitative RT-PCR, acute inflammation with the thickness of mucosa, Goblet cell hyperplasia, and cilia loss were determined and gene expression related to the Notch signaling pathway were evaluated...
July 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28666954/1700012b09rik-a-foxj1-effector-gene-active-in-ciliated-tissues-of-the-mouse-but-not-essential-for-motile-ciliogenesis
#5
Michael Stauber, Karsten Boldt, Christoph Wrede, Marina Weidemann, Manuela Kellner, Karin Schuster-Gossler, Mark Philipp Kühnel, Jan Hegermann, Marius Ueffing, Achim Gossler
In humans and mice, motile cilia occur on the surface of the embryonic ventral node, on respiratory and ependymal epithelia and in reproductive organs where they ensure normal left-right asymmetry of the organism, mucociliary clearance of airways, homeostasis of the cerebrospinal fluid and fertility. The genetic programme for the formation of motile cilia, thus critical for normal development and health, is switched on by the key transcription factor FOXJ1. In previous microarray screens for murine FOXJ1 effectors, we identified candidates for novel factors involved in motile ciliogenesis, including both genes that are well conserved throughout metazoa and beyond, like FOXJ1 itself, and genes without overt homologues outside higher vertebrates...
September 1, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28621423/roles-of-the-cilium-associated-gene-ccdc11-in-left-right-patterning-and-in-laterality-disorders-in-humans
#6
Michal Gur, Enbal Ben-Tal Cohen, Olga Genin, Abraham Fainsod, Zeev Perles, Yuval Cinnamon
Axial determination occurs during early stages of embryogenesis. Flaws in laterality patterning result in abnormal positioning of visceral organs, as manifested in heterotaxy syndrome, or complete left-right inversion as in situs inversus totalis. These malformations are often associated with ciliopathies, as seen in primary ciliary dyskinesia. We have recently described a novel mutation in the Coiled-Coil Domain-Containing 11 (CCDC11) gene associated with laterality disorders in a consanguineous family of Arab-Muslim origin with two affected siblings presenting with diverse phenotypes, one with heterotaxy syndrome and the other with non-primary ciliary dyskinesia situs inversus totalis...
2017: International Journal of Developmental Biology
https://www.readbyqxmd.com/read/28386145/significance-of-stat3-signaling-in-epithelial-cell-differentiation-of-fetal-mouse-lungs
#7
Hiroki Kameyama, Shinji Kudoh, Jun Hatakeyama, Akira Matuo, Takaaki Ito
To study the significance of signal transducer and activator of transcription (Stat) 3 in lung epithelial development of fetal mice, we examined fetal mouse lungs, focusing on the expression of Clara cell secretory protein (CCSP), Forkhead box protein J1 (Foxj1), calcitonin gene-related peptide (CGRP), phosphorylated Stat3 (Tyr705), and hairy/enhancer of split (Hes) 1, and observed cultured fetal lungs upon treatment with IL-6, a Stat3 activator, or cucurbitacin I, a Stat3 inhibitor. Moreover, the interaction of Stat3 signaling and Hes1 was studied using Hes1 gene-deficient mice...
February 28, 2017: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/28258156/maternal-metabolic-stress-may-affect-oviduct-gatekeeper-function
#8
Lies Jordaens, Veerle Van Hoeck, Veronica Maillo, Alfonso Gutierrez-Adan, Waleed Fawzy A Marei, Bruno Vlaeminck, Sofie Thys, Roger G S Sturmey, Peter Bols, Jo Leroy
We hypothesized that elevated non-esterified fatty acids (NEFA) modify in vitro bovine oviduct epithelial cell (BOEC) metabolism and barrier function. Hereto, BOECs were studied in a polarized system with 24h-treatments at day 9: 1) CONTROL (0µM NEFA + 0%EtOH), 2) SOLVENT CONTROL (0µM NEFA + 0.45%EtOH), 3) BASAL NEFA (720µM NEFA + 0.45%EtOH in the basal compartment), 4) APICAL NEFA (720µM NEFA + 0.45%EtOH in the apical compartment). FITC-albumin was used for monolayer permeability assessment, and related to Transepithelial Electric Resistance (TER)...
March 3, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28253373/de-novo-sequencing-and-comparative-analysis-of-testicular-transcriptome-from-different-reproductive-phases-in-freshwater-spotted-snakehead-channa-punctatus
#9
Alivia Roy, Reetuparna Basak, Umesh Rai
The spotted snakehead Channa punctatus is a seasonally breeding teleost widely distributed in the Indian subcontinent and economically important due to high nutritional value. The declining population of C. punctatus prompted us to focus on genetic regulation of its reproduction. The present study carried out de novo testicular transcriptome sequencing during the four reproductive phases and correlated differential expression of transcripts with various testicular events in C. punctatus. The Illumina paired-end sequencing of testicular transcriptome from resting, preparatory, spawning and postspawning phases generated 41...
2017: PloS One
https://www.readbyqxmd.com/read/28242610/stomach-curvature-is-generated-by-left-right-asymmetric-gut-morphogenesis
#10
Adam Davis, Nirav M Amin, Caroline Johnson, Kristen Bagley, H Troy Ghashghaei, Nanette Nascone-Yoder
Left-right (LR) asymmetry is a fundamental feature of internal anatomy, yet the emergence of morphological asymmetry remains one of the least understood phases of organogenesis. Asymmetric rotation of the intestine is directed by forces outside the gut, but the morphogenetic events that generate anatomical asymmetry in other regions of the digestive tract remain unknown. Here, we show in mouse and Xenopus that the mechanisms that drive the curvature of the stomach are intrinsic to the gut tube itself. The left wall of the primitive stomach expands more than the right wall, as the left epithelium becomes more polarized and undergoes radial rearrangement...
April 15, 2017: Development
https://www.readbyqxmd.com/read/28209947/forkhead-box-protein-j1-foxj1-is-overexpressed-in-colorectal-cancer-and-promotes-nuclear-translocation-of-%C3%AE-catenin-in-sw620-cells
#11
Kuiliang Liu, Jianghao Fan, Jing Wu
BACKGROUND FOXJ1, which is a forkhead transcription factor, has been previously studied mostly as a ciliary transcription factor. The role of FOXJ1 in cancer progression is still elusive and controversial. In the present study, the effect of FOXJ1 in progression of colorectal cancer (CRC) was investigated. MATERIAL AND METHODS The pattern of FOXJ1 expression was investigated using the method of immunohistochemistry (IHC) in a tissue microarray (TMA) incorporating 50 pairs of colon cancer specimens and adjacent normal tissue...
February 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28103240/rfx2-stabilizes-foxj1-binding-at-chromatin-loops-to-enable-multiciliated-cell-gene-expression
#12
Ian K Quigley, Chris Kintner
Cooperative transcription factor binding at cis-regulatory sites in the genome drives robust eukaryotic gene expression, and many such sites must be coordinated to produce coherent transcriptional programs. The transcriptional program leading to motile cilia formation requires members of the DNA-binding forkhead (Fox) and Rfx transcription factor families and these factors co-localize to cilia gene promoters, but it is not clear how many cilia genes are regulated by these two factors, whether these factors act directly or indirectly, or how these factors act with specificity in the context of a 3-dimensional genome...
January 2017: PLoS Genetics
https://www.readbyqxmd.com/read/27965440/cfap157-is-a-murine-downstream-effector-of-foxj1-that-is-specifically-required-for-flagellum-morphogenesis-and-sperm-motility
#13
Marina Weidemann, Karin Schuster-Gossler, Michael Stauber, Christoph Wrede, Jan Hegermann, Tim Ott, Karsten Boldt, Tina Beyer, Katrin Serth, Elisabeth Kremmer, Martin Blum, Marius Ueffing, Achim Gossler
Motile cilia move extracellular fluids or mediate cellular motility. Their function is essential for embryonic development, adult tissue homeostasis and reproduction throughout vertebrates. FOXJ1 is a key transcription factor for the formation of motile cilia but its downstream genetic programme is only partially understood. Here, we characterise a novel FOXJ1 target, Cfap157, that is specifically expressed in motile ciliated tissues in mouse and Xenopus in a FOXJ1-dependent manner. CFAP157 protein localises to basal bodies and interacts with tubulin and the centrosomal protein CEP350...
December 15, 2016: Development
https://www.readbyqxmd.com/read/27914912/identification-of-foxj1-effectors-during-ciliogenesis-in-the-foetal-respiratory-epithelium-and-embryonic-left-right-organiser-of-the-mouse
#14
Michael Stauber, Marina Weidemann, Oliver Dittrich-Breiholz, Katharina Lobschat, Leonie Alten, Michaela Mai, Anja Beckers, Michael Kracht, Achim Gossler
Formation of motile cilia in vertebrate embryos is essential for proper development and tissue function. Key regulators of motile ciliogenesis are the transcription factors FOXJ1 and NOTO, which are conserved throughout vertebrates. Downstream target genes of FOXJ1 have been identified in a variety of species, organs and cultured cell lines; in murine embryonic and foetal tissues, however, FOXJ1 and NOTO effectors have not been comprehensively analysed and our knowledge of the downstream genetic programme driving motile ciliogenesis in the mammalian lung and ventral node is fragmentary...
March 15, 2017: Developmental Biology
https://www.readbyqxmd.com/read/27888644/myrtol-standardized-affects-mucociliary-clearance
#15
Ying Ying Li, Jing Liu, Chun Wei Li, Somasundaram Subramaniam, Siew Shuen Chao, Feng Gang Yu, Noam A Cohen, Shi Li, De Yun Wang
BACKGROUND: Myrtol standardized (Gelomyrtol forte) has been shown to be effective in controlling nasal symptoms of rhinosinusitis by promoting mucociliary clearance. Our aim was to evaluate the short- and long-term effects of myrtol on ciliated columnar cells and goblet cells in an in-vitro setting. METHODS: Nasal epithelial cells were harvested (42 days) from an air-liquid interface (ALI) culture of human nasal epithelial stem/progenitor cells (hNESPCs), which was derived from biopsies of nasal inferior turbinate mucosa...
March 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/27864379/foxn4-promotes-gene-expression-required-for-the-formation-of-multiple-motile-cilia
#16
Evan P Campbell, Ian K Quigley, Chris Kintner
Multiciliated cell (MCC) differentiation involves extensive organelle biogenesis required to extend hundreds of motile cilia. Key transcriptional regulators known to drive the gene expression required for this organelle biogenesis are activated by the related coiled-coil proteins Multicilin and Gemc1. Here we identify foxn4 as a new downstream target of Multicilin required for MCC differentiation in Xenopus skin. When Foxn4 activity is inhibited in Xenopus embryos, MCCs show transient ciliogenesis defects similar to those seen in mutants of Foxj1, a known key regulator of genes required for motile ciliation...
December 15, 2016: Development
https://www.readbyqxmd.com/read/27751903/removal-of-aquaporin-4-from-glial-and-ependymal-membranes-causes-brain-water-accumulation
#17
Gry Fluge Vindedal, Anna E Thoren, Vidar Jensen, Arne Klungland, Yong Zhang, Michael J Holtzman, Ole Petter Ottersen, Erlend A Nagelhus
There is a constitutive production of water in brain. The efflux routes of this excess water remain to be identified. We used basal brain water content as a proxy for the capacity of water exit routes. Basal brain water content was increased in mice with a complete loss of aquaporin-4 (AQP4) water channels (global Aqp4(-/-) mice), but not in mice with a selective removal of perivascular AQP4 or in a novel mouse line with a selective deletion of ependymal AQP4 (Foxj1-Cre:Aqp4(flox/flox) mice). Unique for the global Aqp4(-/-) mice is the loss of the AQP4 pool subjacent to the pial membrane...
December 2016: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/27660208/expression-and-localization-of-forkhead-box-protein-foxj1-in-s100%C3%AE-positive-multiciliated-cells-of-the-rat-pituitary
#18
Takashi Nakakura, Takeshi Suzuki, Kotaro Horiguchi, Ken Fujiwara, Takehiro Tsukada, Anshin Asano-Hoshino, Hideyuki Tanaka, Kenjiro Arisawa, Yoshimi Nishijima, Yoko Nekooki-Machida, Yoshiko Kiuchi, Haruo Hagiwara
S100β-positive cells exist in the marginal cell layer (MCL) of the adenohypophysis and follicle structure in the parenchyma of anterior lobe (ALFS) in pituitary. They have multiple functions as phagocytes or cells that regulate hormone secretion. Majority of S100β-positive cells in the adenohypophysis express sex determining region Y-box 2 protein (SOX2), a stem cell marker; therefore, S100β/SOX2 double positive cells are also considered as one type of stem/progenitor cells. MCL and ALFS are consisting of morphologically two types of cells, i...
September 22, 2016: Medical Molecular Morphology
https://www.readbyqxmd.com/read/27606337/mcidas-and-gemc1-lynkeas-specify-embryonic-radial-glial-cells
#19
Christina Kyrousi, Maria-Eleni Lalioti, Eleni Skavatsou, Zoi Lygerou, Stavros Taraviras
Ependymal cells are multiciliated cells located in the wall of the lateral ventricles of the adult mammalian brain and are key components of the subependymal zone niche, where adult neural stem cells reside. Through the movement of their motile cilia, ependymal cells control the cerebrospinal fluid flow within the ventricular system from which they receive secreted molecules and morphogens controlling self-renewal and differentiation decisions of adult neural stem cells. Multiciliated ependymal cells become fully differentiated at postnatal stages however they are specified during mid to late embryogenesis from a population of radial glial cells...
2016: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/27588392/two-stage-induced-differentiation-of-oct4-nanog-stem-like-cells-in-lung-adenocarcinoma
#20
Rong Li, Jinsu Huang, Meili Ma, Yuqing Lou, Yanwei Zhang, Lixia Wu, David W Chang, Picheng Zhao, Qianggang Dong, Xifeng Wu, Baohui Han
Stem-like cells in solid tumors are purported to contribute to cancer development and poor treatment outcome. The abilities to self-renew, differentiate, and resist anticancer therapies are hallmarks of these rare cells, and steering them into lineage commitment may be one strategy to curb cancer development or progression. Vitamin D is a prohormone that can alter cell growth and differentiation and may induce the differentiation cancer stem-like cells. In this study, octamer-binding transcription factor 4 (OCT4)-positive/Nanog homeobox (Nanog)- positive lung adenocarcinoma stem-like cells (LACSCs) were enriched from spheroid cultured SPC-A1 cells and differentiated by a two-stage induction (TSI) method, which involved knockdown of hypoxia-inducible factor 1-alpha (HIF1α) expression (first stage) followed by sequential induction with 1alpha,25-dihydroxyvitamin D3 (1,25(OH)2D3, VD3) and suberoylanilide hydroxamic acid (SAHA) treatment (second stage)...
October 18, 2016: Oncotarget
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