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Nkx2-1

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https://www.readbyqxmd.com/read/28318118/distinct-expression-of-nk2-homeobox-1-nkx2-1-and-goblet-cell-hyperplasia-in-nasal-polyps-with-different-endotypes
#1
Jintao Du, Luo Ba, Bo Li, Feng Liu, Xianting Hu, Jie Zhang, Yafeng Liu, Junming Xian, Sixi Liu, Huabin Li
BACKGROUND: Decreased expression of airway epithelial-specific transcription factor NK2 homeobox 1 (NKX2-1) was associated with allergic inflammation in asthma patients. However, the expression and role of NKX2-1 in nasal polyps (NPs) with different endotypes were undefined yet. METHODS: We examined the expression of key cytokines (interleukin [IL]-4 IL-5, IL-13, and IL-17A, etc.) and NKX2-1 in NPs with different endotypes and control tissues by immunohistochemistry staining, qualitative polymerase chain reaction (qPCR), enzyme-linked immunosorbent assay (ELISA), and Western blot analysis...
March 20, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28294152/melanocortin-3-receptors-expressed-in-nkx2-1-ve-neurons-are-sufficient-for-controlling-appetitive-responses-to-hypocaloric-conditioning
#2
Clémence Girardet, Maria M Mavrikaki, Joseph R Stevens, Courtney A Miller, Daniel L Marks, Andrew A Butler
Melanocortin-3 receptors (MC3R) have a contextual role in appetite control that is amplified with hypocaloric conditioning. C57BL/6J (B6) mice subjected to hypocaloric feeding schedules (HFS) exhibit compulsive behavioral responses involving food anticipatory activity (FAA) and caloric loading following food access. These homeostatic responses to calorie-poor environs are attenuated in B6 mice in which Mc3r transcription is suppressed by a lox-stop-lox sequence in the 5'UTR (Mc3r(TB/TB)). Here, we report that optimization of caloric loading in B6 mice subject to HFS, characterized by increased meal size and duration, is not observed in Mc3r(TB/TB) mice...
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28286255/a-further-case-of-brain-lung-thyroid-syndrome-with-deletion-proximal-to-nkx2-1
#3
Mira Kharbanda, Pia Hermanns, Jeremy Jones, Joachim Pohlenz, Iain Horrocks, Malcolm Donaldson
Brain-lung-thyroid syndrome (OMIM #610978) is associated with mutations in the NK2 homeobox 1 (NKX2-1) gene, a transcription factor important in development. 50% of patients are affected by the full triad, comprising congenital hypothyroidism, benign hereditary chorea and infant respiratory distress syndrome. Four cases have previously been reported where a patient has features consistent with brain-lung-thyroid syndrome and a chromosome 14q13 deletion adjacent to, but not disrupting, NKX2-1. We present a patient who has a phenotype consistent with brain-lung-thyroid syndrome, featuring congenital hypothyroidism and choreoathetoid movements with gross motor delay...
March 7, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28281552/reaching-the-limits-of-prognostication-in-non-small-cell-lung-cancer-an-optimized-biomarker-panel-fails-to-outperform-clinical-parameters
#4
Marianna Grinberg, Dijana Djureinovic, Hans Rr Brunnström, Johanna Sm Mattsson, Karolina Edlund, Jan G Hengstler, Linnea La Fleur, Simon Ekman, Hirsh Koyi, Eva Branden, Elisabeth Ståhle, Karin Jirström, Derek K Tracy, Fredrik Pontén, Johan Botling, Jörg Rahnenführer, Patrick Micke
Numerous protein biomarkers have been analyzed to improve prognostication in non-small cell lung cancer, but have not yet demonstrated sufficient value to be introduced into clinical practice. Here, we aimed to develop and validate a prognostic model for surgically resected non-small cell lung cancer. A biomarker panel was selected based on (1) prognostic association in published literature, (2) prognostic association in gene expression data sets, (3) availability of reliable antibodies, and (4) representation of diverse biological processes...
March 10, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28266561/nkx2-1-regulates-the-generation-of-telencephalic-astrocytes-during-embryonic-development
#5
Shilpi Minocha, Delphine Valloton, Yvan Arsenijevic, Jean-René Cardinaux, Raffaella Guidi, Jean-Pierre Hornung, Cécile Lebrand
The homeodomain transcription factor Nkx2.1 (NK2 homeobox 1) controls cell differentiation of telencephalic GABAergic interneurons and oligodendrocytes. Here we show that Nkx2.1 also regulates astrogliogenesis of the telencephalon from embryonic day (E) 14.5 to E16.5. Moreover we identify the different mechanisms by which Nkx2.1 controls the telencephalic astrogliogenesis. In Nkx2.1 knockout (Nkx2.1(-/-)) mice a drastic loss of astrocytes is observed that is not related to cell death. Further, in vivo analysis using BrdU incorporation reveals that Nkx2...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28215547/next-generation-sequencing-analysis-of-twelve-known-causative-genes-in-congenital-hypothyroidism
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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-mesenchymal-transition
#13
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...
March 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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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...
2016: EMBO Molecular Medicine
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