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Nkx2-1

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https://www.readbyqxmd.com/read/28215547/next-generation-sequencing-analysis-of-twelve-known-causative-genes-in-congenital-hypothyroidism
#1
Xin Fan, Chunyun Fu, Yiping Shen, Chuan Li, Shiyu Luo, Qifei Li, Jingsi Luo, Jiasun Su, Shujie Zhang, Xuyun Hu, Rongyu Chen, Xuefan Gu, Shaoke Chen
BACKGROUND: Gene variants have been reported to be associated with congenital hypothyroidism (CH), the purpose of this study was to analyze the mutation spectrum and prevalence of 12 known causative genes (TSHR, PAX8, NKX2.1, NKX2.5, FOXE1, DUOX2, TG, TPO, GLIS3, NIS, SLC26A4 and DEHAL1) in CH in China. METHODS: Peripheral venous blood samples were collected from the patients. Genomic DNA was extracted from peripheral blood leukocytes. All exons and their exon-intron boundary sequences of the 12 known CH associated genes in 66 CH patients were screened by next-generation sequencing (NGS)...
February 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28215425/outcomes-of-lung-transplantation-for-infants-and-children-with-genetic-disorders-of-surfactant-metabolism
#2
Whitney B Eldridge, Qunyuan Zhang, Albert Faro, Stuart C Sweet, Pirooz Eghtesady, Aaron Hamvas, F Sessions Cole, Jennifer A Wambach
OBJECTIVE: To compare outcomes of infants and children who underwent lung transplantation for genetic disorders of surfactant metabolism (SFTPB, SFTPC, ABCA3, and NKX2-1) over 2 epochs (1993-2003 and 2004-2015) at St Louis Children's Hospital. STUDY DESIGN: We retrospectively reviewed clinical characteristics, mortality, and short- and long-term morbidities of infants (transplanted at <1 year; n = 28) and children (transplanted >1 year; n = 16) and compared outcomes by age at transplantation (infants vs children) and by epoch of transplantation...
February 16, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28213137/foxo1-is-a-downstream-effector-of-isl1-in-direct-pathway-striatal-projection-neuron-development-within-the-embryonic-mouse-telencephalon
#3
R R Waclaw, L A Ehrman, P Merchan-Sala, V Kohli, D Nardini, K Campbell
Recent studies have shown that the LIM-homeodomain transcription factor Isl1 is required for the survival and differentiation of direct pathway striatonigral neurons during embryonic development. The downstream effectors of Isl1 in these processes are presently unknown. We show here that Foxo1, a transcription factor that has been implicated in cell survival, is expressed in striatal projection neurons (SPNs) that derive from the Isl1 lineage (i.e. direct pathway SPNs). Moreover, Isl1 conditional knockouts (cKOs) show a severe loss of Foxo1 expression at E15...
February 14, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28202123/-expression-of-long-non-coding-rna-nanci-in-lung-tissues-of-neonatal-mice-with-hyperoxia-induced-lung-injury-and-its-regulatory-effect-on-nkx2-1
#4
Yuan Zhang, Huai-Ping Cheng, Tian-Ping Bao, Xiu-Gui Wang, Zhao-Fang Tian
OBJECTIVE: To investigate the expression of long non-coding RNA NANCI in lung tissues of neonatal mice with hyperoxia-induced lung injury and its regulatory effect on NKX2.1. METHODS: A total of 48 neonatal C57BL/6J mice were randomly divided into an air group and a hyperoxia group, with 24 mice in each group. Each group was further divided into 7-day, 14-day, and 21-day subgroups, with 8 mice in each subgroup. The mice in the air group were fed in the indoor environment (FiO(2)=21%) and those in the hyperoxia group were fed in a high-oxygen box (oxygen concentration: >95%)...
February 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28192407/ttf-1-nkx2-1-binds-to-ddb1-and-confers-replication-stress-resistance-to-lung-adenocarcinomas
#5
Z Liu, K Yanagisawa, S Griesing, M Iwai, K Kano, N Hotta, T Kajino, M Suzuki, T Takahashi
TTF-1, also known as NKX2-1, is a transcription factor that has indispensable roles in both lung development and physiology. We and others have reported that TTF-1 frequently exhibits high expression with increased copy number in lung adenocarcinomas, and also has a role as a lineage-survival oncogene through transcriptional activation of crucial target genes including ROR1 and LMO3. In the present study, we employed a global proteomic search for proteins that interact with TTF-1 in order to provide a more comprehensive picture of this still enigmatic lineage-survival oncogene...
February 13, 2017: Oncogene
https://www.readbyqxmd.com/read/28162994/thyroid-progenitors-are-robustly-derived-from-embryonic-stem-cells-through-transient-developmental-stage-specific-overexpression-of-nkx2-1
#6
Keri Dame, Steven Cincotta, Alex H Lang, Reeti M Sanghrajka, Liye Zhang, Jinyoung Choi, Letty Kwok, Talitha Wilson, Maciej M Kańduła, Stefano Monti, Anthony N Hollenberg, Pankaj Mehta, Darrell N Kotton, Laertis Ikonomou
The clinical importance of anterior foregut endoderm (AFE) derivatives, such as thyrocytes, has led to intense research efforts for their derivation through directed differentiation of pluripotent stem cells (PSCs). Here, we identify transient overexpression of the transcription factor (TF) NKX2-1 as a powerful inductive signal for the robust derivation of thyrocyte-like cells from mouse PSC-derived AFE. This effect is highly developmental stage specific and dependent on FOXA2 expression levels and precise modulation of BMP and FGF signaling...
February 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28151996/nkl-homeobox-gene-activities-in-hematopoietic-stem-cells-t-cell-development-and-t-cell-leukemia
#7
Stefan Nagel, Claudia Pommerenke, Michaela Scherr, Corinna Meyer, Maren Kaufmann, Karin Battmer, Roderick A F MacLeod, Hans G Drexler
T-cell acute lymphoblastic leukemia (T-ALL) cells represent developmentally arrested T-cell progenitors, subsets of which aberrantly express homeobox genes of the NKL subclass, including TLX1, TLX3, NKX2-1, NKX2-5, NKX3-1 and MSX1. Here, we analyzed the transcriptional landscape of all 48 members of the NKL homeobox gene subclass in CD34+ hematopoietic stem and progenitor cells (HSPCs) and during lymphopoiesis, identifying activities of nine particular genes. Four of these were expressed in HSPCs (HHEX, HLX1, NKX2-3 and NKX3-1) and three in common lymphoid progenitors (HHEX, HLX1 and MSX1)...
2017: PloS One
https://www.readbyqxmd.com/read/28125936/an-adult-mouse-thyroid-side-population-cell-line-that-exhibits-enriched-epithelial-to-mesenchymal-transition
#8
Tsubasa Murata, Manabu Iwadate, Yoshinori Takizawa, Masaaki Miyakoshi, Suguru Hayase, Wenjing Yang, Yan Cai, Shigetoshi Yokoyama, Kunio Nagashima, Yoshiyuki Wakabayashi, Jun Zhu, Shioko Kimura
BACKGROUND: Studies of thyroid stem/progenitor cells have been hampered due to the small organ size and lack of tissue, which limits the yield of these cells. A continuous source that allows the study and characterization of thyroid stem/progenitor cells is desired to push the field forward. METHOD: A cell line was established from Hoechst-resistant side population cells derived from mouse thyroid that were previously shown to contain stem/progenitor-like cells...
January 27, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28078605/transcriptional-regulatory-network-analysis-for-gastric-cancer-based-on-mrna-microarray
#9
Yan Wang
We aimed to screen the differential expressed genes (DEGs) and transcriptional factors (TFs) related to gastric cancer. GSE19826 microarray data downloaded from Gene Expression Omnibus was used to identify the differentially expressed genes (DEGs) and PPI network of DEGs were constructed by the Retrieval of Interacting Genes database. Pathway enrichment analysis of DEGs were performed by Gene Set Enrichment Analysis. Then, the transcriptional regulatory network was constructed based on TRANSFAC database. Finally, regulatory impact factor (RIF) of TF was calculated...
January 11, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27915271/changes-in-renal-gene-expression-associated-with-induced-ochratoxicosis-in-chickens-activation-and-deactivation-of-transcripts-after-varying-durations-of-exposure
#10
Cynthia P Zeferino, Kevin D Wells, Ana Silvia A M T Moura, George E Rottinghaus, David R Ledoux
Exposure to ochratoxin A (OTA) can lead to changes in global gene expression. This study investigated the individual expression of genes turned on and off in renal cells of chicks after different durations of exposure to dietary OTA. One hundred and eighty day-old male broiler chicks (Ross 308) were randomly assigned to a 3 × 3 factorial arrangement of treatments (3 levels of OTA: 0, 1 and 2 mg OTA/kg diet and 3 time periods: 7, 14 and 21 d). Birds were allocated to 36 pens (4 replicate pens of 5 birds each per treatment)...
December 3, 2016: Poultry Science
https://www.readbyqxmd.com/read/27908915/the-hypothalamic-glucagon-like-peptide-1-receptor-is-sufficient-but-not-necessary-for-the-regulation-of-energy-balance-and-glucose-homeostasis-in-mice
#11
Melissa A Burmeister, Jennifer E Ayala, Hannah Smouse, Adriana Landivar-Rocha, Jacob D Brown, Daniel J Drucker, Doris A Stoffers, Darleen A Sandoval, Randy J Seeley, Julio E Ayala
Pharmacological activation of the hypothalamic glucagon-like peptide 1 (GLP-1) receptor (GLP-1R) promotes weight loss and improves glucose tolerance. This demonstrates that the hypothalamic GLP-1R is sufficient but does not show whether it is necessary for the effects of exogenous GLP-1R agonists (GLP-1RA) or endogenous GLP-1 on these parameters. To address this, we crossed mice harboring floxed Glp1r alleles to mice expressing Nkx2.1-Cre to knock down Glp1r expression throughout the hypothalamus (GLP-1RKD(ΔNkx2...
February 2017: Diabetes
https://www.readbyqxmd.com/read/27905023/distinct-cortical-and-sub-cortical-neurogenic-domains-for-gabaergic-interneuron-precursor-transcription-factors-nkx2-1-olig2-and-coup-tfii-in-early-fetal-human-telencephalon
#12
Ayman Alzu'bi, Susan Lindsay, Janet Kerwin, Shi Jie Looi, Fareha Khalil, Gavin J Clowry
The extent of similarities and differences between cortical GABAergic interneuron generation in rodent and primate telencephalon remains contentious. We examined expression of three interneuron precursor transcription factors, alongside other markers, using immunohistochemistry on 8-12 post-conceptional weeks (PCW) human telencephalon sections. NKX2.1, OLIG2, and COUP-TFII expression occupied distinct (although overlapping) neurogenic domains which extended into the cortex and revealed three CGE compartments: lateral, medial, and ventral...
November 30, 2016: Brain Structure & Function
https://www.readbyqxmd.com/read/27864883/neuronal-sources-of-hedgehog-modulate-neurogenesis-in-the-adult-planarian-brain
#13
Ko W Currie, Alyssa M Molinaro, Bret J Pearson
The asexual freshwater planarian is a constitutive adult, whose central nervous system (CNS) is in a state of constant homeostatic neurogenesis. However, very little is known about the extrinsic signals that act on planarian stem cells to modulate rates of neurogenesis. We have identified two planarian homeobox transcription factors, Smed-nkx2.1 and Smed-arx, which are required for the maintenance of cholinergic, GABAergic, and octopaminergic neurons in the planarian CNS. These very same neurons also produce the planarian hedgehog ligand (Smed-hh), which appears to communicate with brain-adjacent stem cells to promote normal levels of neurogenesis...
November 19, 2016: ELife
https://www.readbyqxmd.com/read/27829313/taz-induction-directs-differentiation-of-thyroid-follicular-cells-from-human-embryonic-stem-cells
#14
Risheng Ma, Syed A Morshed, Rauf Latif, Terry F Davies
OBJECTIVE: The differentiation program for human thyroid follicular cells (TFCs) relies on the interplay between sequence-specific transcription factors and transcriptional co-regulators. Transcriptional co-activator with PDZ-binding motif (TAZ) is a co-activator that regulates several transcription factors, including PAX8 and NKX2-1, which play a central role in thyroid-specific gene transcription. TAZ and PAX8/NKX2-1 are co-expressed in the nuclei of thyroid cells, and TAZ interacts directly with both PAX8 and NKX2-1, leading to their enhanced transcriptional activity on the thyroglobulin (TG) promoter and additional genes...
February 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/27821429/non-invasive-lung-cancer-diagnosis-by-detection-of-gata6-and-nkx2-1-isoforms-in-exhaled-breath-condensate
#15
Aditi Mehta, Julio Cordero, Stephanie Dobersch, Addi J Romero-Olmedo, Rajkumar Savai, Johannes Bodner, Cho-Ming Chao, Ludger Fink, Ernesto Guzmán-Díaz, Indrabahadur Singh, Gergana Dobreva, Ulf R Rapp, Stefan Günther, Olga N Ilinskaya, Saverio Bellusci, Reinhard H Dammann, Thomas Braun, Werner Seeger, Stefan Gattenlöhner, Achim Tresch, Andreas Günther, Guillermo Barreto
Lung cancer (LC) is the leading cause of cancer-related deaths worldwide. Early LC diagnosis is crucial to reduce the high case fatality rate of this disease. In this case-control study, we developed an accurate LC diagnosis test using retrospectively collected formalin-fixed paraffin-embedded (FFPE) human lung tissues and prospectively collected exhaled breath condensates (EBCs). Following international guidelines for diagnostic methods with clinical application, reproducible standard operating procedures (SOP) were established for every step comprising our LC diagnosis method...
December 1, 2016: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/27810169/conservatism-and-variability-of-gene-expression-profiles-among-homeologous-transcription-factors-in-xenopus-laevis
#16
Minoru Watanabe, Yuuri Yasuoka, Shuuji Mawaribuchi, Aya Kuretani, Michihiko Ito, Mariko Kondo, Haruki Ochi, Hajime Ogino, Akimasa Fukui, Masanori Taira, Tsutomu Kinoshita
Xenopus laevis has an allotetraploid genome of 3.1Gb, in contrast to the diploid genome of a closely related species, Xenopus tropicalis. Here, we identified 412 genes (189 homeolog pairs, one homeologous gene cluster pair, and 28 singletons) encoding transcription factors (TFs) in the X. laevis genome by comparing them with their orthologs from X. tropicalis. Those genes include the homeobox gene family (Mix/Bix, Lhx, Nkx, Paired, POU, and Vent), Sox, Fox, Pax, Dmrt, Hes, GATA, T-box, and some clock genes...
October 31, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27807061/familial-non-medullary-thyroid-cancer-unraveling-the-genetic-maze
#17
REVIEW
Samantha Peiling Yang, Joanne Ngeow
Familial non-medullary thyroid cancer (FNMTC) constitutes 3-9% of all thyroid cancers. Out of all FNMTC cases, only 5% in the syndromic form has well-studied driver germline mutations. These associated syndromes include Cowden syndrome, familial adenomatous polyposis, Gardner syndrome, Carney complex type 1, Werner syndrome and DICER1 syndrome. It is important for the clinician to recognize these phenotypes so that genetic counseling and testing can be initiated to enable surveillance for associated malignancies and genetic testing of family members...
December 2016: Endocrine-related Cancer
https://www.readbyqxmd.com/read/27780732/altered-postnatal-maturation-of-striatal-gabaergic-interneurons-in-a-phenotypic-animal-model-of-dystonia
#18
Christoph Bode, Franziska Richter, Christine Spröte, Tanja Brigadski, Anne Bauer, Simone Fietz, Jean-Marc Fritschy, Angelika Richter
GABAergic disinhibition has been suggested to play a critical role in the pathophysiology of several basal ganglia disorders, including dystonia, a common movement disorder. Previous studies have shown a deficit of striatal GABAergic interneurons (IN) in the dt(sz) mutant hamster, one of the few phenotypic animal models of dystonia. However, mechanisms underlying this deficit are largely unknown. In the present study, we investigated the migration and maturation of striatal IN during postnatal development (18days of age) and at age of highest severity of dystonia (33days of age) in this hamster model...
January 2017: Experimental Neurology
https://www.readbyqxmd.com/read/27770487/medial-ganglionic-eminence-cells-freshly-obtained-or-expanded-as-neurospheres-show-distinct-cellular-and-molecular-properties-in-reducing-epileptic-seizures
#19
Simone A A Romariz, Daisyléa S Paiva, Layla T Galindo, Gabriela F Barnabé, Vivian A Guedes, Cesario V Borlongan, Beatriz M Longo
AIMS: Medial ganglionic eminence (MGE) progenitors give rise to inhibitory interneurons and may serve as an alternative cell source for large-scale cell transplantation for epilepsy after in vitro expansion. We investigated whether modifications in the culture medium of MGE neurospheres affect neuronal differentiation and expression of MGE-specific genes. In vivo, we compared anticonvulsant effects and cell differentiation pattern among neurospheres grown in different culture media and compared them with freshly harvested MGE cells...
October 21, 2016: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/27756764/macf1-controls-migration-and-positioning-of-cortical-gabaergic-interneurons-in-mice
#20
Minhan Ka, Jeffrey J Moffat, Woo-Yang Kim
GABAergic interneurons develop in the ganglionic eminence in the ventral telencephalon and tangentially migrate into the cortical plate during development. However, key molecules controlling interneuron migration remain poorly identified. Here, we show that microtubule-actin cross-linking factor 1 (MACF1) regulates GABAergic interneuron migration and positioning in the developing mouse brain. To investigate the role of MACF1 in developing interneurons, we conditionally deleted the MACF1 gene in mouse interneuron progenitors and their progeny using Dlx5/6-Cre-IRES-EGFP and Nkx2...
October 18, 2016: Cerebral Cortex
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