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https://www.readbyqxmd.com/read/29059672/lack-of-association-between-bmp2-dlx3-gene-polymorphisms-and-dental-caries-in-primary-and-permanent-dentitions
#1
Jakub Kastovsky, Petra Borilova Linhartova, Kristina Musilova, Lenka Zackova, Martina Kukletova, Lubomir Kukla, Lydie Izakovicova Holla
The aim of this study was to analyze the association between BMP2 (rs1884302) and DLX3 (rs2278163) gene polymorphisms and dental caries in primary and permanent dentitions. A total of 914 subjects were genotyped by the TaqMan methods: 176 caries-free children (with Decayed/Missing/Filled Teeth, DMFT = 0), 542 patients with dental caries in permanent dentition (DMFT ≥1), 83 caries-free children with primary teeth (with decayed/missing/filled teeth, dmft = 0), and 113 children with early childhood caries (ECC, dmft ≥1)...
October 24, 2017: Caries Research
https://www.readbyqxmd.com/read/28982936/transcriptional-control-of-ifnt-expression
#2
REVIEW
Toshihiko Ezashi, Kazuhiko Imakawa
Once interferon-tau (IFNT) had been identified as a type I IFN in sheep and cattle and its functions were characterized, numerous studies were conducted to elucidate the transcriptional regulation of this gene family. Transfection studies performed largely with human choriocarcinoma cell lines identified regulatory regions of the IFNT gene that appeared responsible for trophoblast-specific expression. The key finding was the recognition that the transcription factor ETS2 bound to a proximal region within the 5'UTR of a bovine IFNT and acted as a strong transactivator...
November 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28963438/dlx3-promotes-bone-marrow-mesenchymal-stem-cells-proliferation-through-h19-mir-675-axis
#3
Na Zhao, Li Zeng, Yang Liu, Dong Han, Haochen Liu, Jian Xu, Yuxi Jiang, Cuiying Li, Tao Cai, Hailan Feng, Yixiang Wang
The underlying molecular mechanism of the increased bone mass phenotype in Tricho-dento-osseous (TDO) syndrome remains largely unknown. Our previous study has shown that the TDO point mutation c.533A>G, Q178R in DLX3 could increase bone density in a TDO patient and transgenic mice partially through delaying senescence in bone marrow mesenchymal stem cells (BMSCs). In the present study, we provided a new complementary explanation for TDO syndrome: the DLX3 (Q178R) mutation increased BMSCs proliferation through H19/miR-675 axis...
September 28, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28954238/rapid-chromatin-switch-in-the-direct-reprogramming-of-fibroblasts-to-neurons
#4
Orly L Wapinski, Qian Yi Lee, Albert C Chen, Rui Li, M Ryan Corces, Cheen Euong Ang, Barbara Treutlein, Chaomei Xiang, Valérie Baubet, Fabian Patrik Suchy, Venkat Sankar, Sopheak Sim, Stephen R Quake, Nadia Dahmane, Marius Wernig, Howard Y Chang
How transcription factors (TFs) reprogram one cell lineage to another remains unclear. Here, we define chromatin accessibility changes induced by the proneural TF Ascl1 throughout conversion of fibroblasts into induced neuronal (iN) cells. Thousands of genomic loci are affected as early as 12 hr after Ascl1 induction. Surprisingly, over 80% of the accessibility changes occur between days 2 and 5 of the 3-week reprogramming process. This chromatin switch coincides with robust activation of endogenous neuronal TFs and nucleosome phasing of neuronal promoters and enhancers...
September 26, 2017: Cell Reports
https://www.readbyqxmd.com/read/28883412/bmp-2-induced-dspp-transcription-is-mediated-by-dlx3-osx-signaling-pathway-in-odontoblasts
#5
Guobin Yang, Guohua Yuan, Mary MacDougall, Chen Zhi, Shuo Chen
Dentin sialophosphoprotein (Dspp) as a differentiation marker of odontoblasts is regulated by BMP-2. However, the intimate mechanism is still unknown. Transcription factors Dlx3 and Osx are essential for odontoblasts differentiation. We hypothesized that BMP-2 regulation of Dspp transcription was mediated by Dlx3 and/or Osx in odontoblasts. In the present investigation, we found that BMP-2 stimulated expression and nuclear translocation of Dlx3 and Osx in odontoblasts both in vitro and in vivo. Osx was a downstream target of Dlx3 and both of them stimulated Dsp expression...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28718809/maternal-choline-supplementation-alters-fetal-growth-patterns-in-a-mouse-model-of-placental-insufficiency
#6
Julia H King, Sze Ting Cecilia Kwan, Jian Yan, Kevin C Klatt, Xinyin Jiang, Mark S Roberson, Marie A Caudill
Impairments in placental development can adversely affect pregnancy outcomes. The bioactive nutrient choline may mitigate some of these impairments, as suggested by data in humans, animals, and human trophoblasts. Herein, we investigated the effects of maternal choline supplementation (MCS) on parameters of fetal growth in a Dlx3+/- (distal-less homeobox 3) mouse model of placental insufficiency. Dlx3+/- female mice were assigned to 1X (control), 2X, or 4X choline intake levels during gestation. Dams were sacrificed at embryonic days E10...
July 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28670783/a-de-novo-germline-mutation-of-dlx3-in-a-brown-swiss-calf-with-tricho-dento-osseus-like-syndrome
#7
Sonja Hofstetter, Monika Welle, Daniela Gorgas, Pierre Balmer, Petra Roosje, Thomas Mock, Mireille Meylan, Vidhya Jagannathan, Cord Drögemüller
OBJECTIVE: A novel congenital disorder affecting a calf was observed, and its phenotype and genetic mutation identified. ANIMAL: A six-month-old female Brown Swiss calf. METHODS: Diagnostic investigation and whole genome sequencing of a case parent trio was performed. RESULTS: The calf had a dull kinky coat with mild hypotrichosis, and teeth with brown staining and enamel defects. Histological examination of skin biopsies was compatible with a follicular dysplasia...
July 2, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28533516/asd-restricted-and-repetitive-behaviors-associated-at-17q21-33-genes-prioritized-by-expression-in-fetal-brains
#8
R M Cantor, L Navarro, H Won, R L Walker, J K Lowe, D H Geschwind
Autism spectrum disorder (ASD) is a behaviorally defined condition that manifests in infancy or early childhood as deficits in communication skills and social interactions. Often, restricted and repetitive behaviors (RRBs) accompany this disorder. ASD is polygenic and genetically complex, so we hypothesized that focusing analyses on intermediate core component phenotypes, such as RRBs, can reduce genetic heterogeneity and improve statistical power. Applying this approach, we mined Caucasian genome-wide association studies (GWAS) data from two of the largest ASD family cohorts, the Autism Genetics Resource Exchange and Autism Genome Project (AGP)...
May 23, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/28521150/the-effects-of-copper-oxide-nanoparticles-on-dorsoventral-patterning-convergent-extension-and-neural-and-cardiac-development-of-zebrafish
#9
Jia Xu, Qiuping Zhang, Xu Li, Sihui Zhan, Lifeng Wang, Dongyan Chen
Currently, nanoparticles are widely used in biomedicine and industry. CuO nanoparticles (CuO-NPs) are versatile materials in our daily life and their toxicity has drawn extensive attention. In this study, we concentrate on the effect of CuO-NPs on early zebrafish development. The results reveal that CuO-NPs can induce abnormal phenotypes of a smaller head and eyes and delayed epiboly. The gene expression pattern shows that CuO-NPs spatially narrow the expression of dorsal genes chordin and goosecoid and alter the expression of dlx3, ntl and hgg which are related to the cell migration of gastrulation...
July 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28515447/dlx3-interacts-with-gcm1-and-inhibits-its-transactivation-stimulating-activity-in-a-homeodomain-dependent-manner-in-human-trophoblast-derived-cells
#10
Sha Li, Mark S Roberson
The placental transcription factors Distal-less 3 (DLX3) and Glial cell missing-1 (GCM1) have been shown to coordinate the specific regulation of PGF in human trophoblast cell lines. While both factors independently have a positive effect on PGF gene expression, when combined, DLX3 acts as an antagonist to GCM. Despite this understanding, potential mechanisms accounting for this regulatory interaction remain unexplored. We identify physical and functional interactions between specific domains of DLX3 and GCM1 in human trophoblast-derived cells by performing immunoprecipitation and mammalian one hybrid assays...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424525/genome-wide-detection-of-copy-number-variation-in-chinese-indigenous-sheep-using-an-ovine-high-density-600%C3%A2-k-snp-array
#11
Qing Ma, Xuexue Liu, Jianfei Pan, Lina Ma, Yuehui Ma, Xiaohong He, Qianjun Zhao, Yabin Pu, Yingkang Li, Lin Jiang
Copy number variants (CNVs) represent a form of genomic structural variation underlying phenotypic diversity. In this study, we used the Illumina Ovine SNP 600 K BeadChip array for genome-wide detection of CNVs in 48 Chinese Tan sheep. A total of 1,296 CNV regions (CNVRs), ranging from 1.2 kb to 2.3 Mb in length, were detected, representing approximately 4.7% of the entire ovine genome (Oar_v3.1). We combined our findings with five existing CNVR reports to generate a composite genome-wide dataset of 4,321 CNVRs, which revealed 556 (43%) novel CNVRs...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28419554/the-major-mir-31-target-genes-stk40-and-lats2-and-their-implications-in-the-regulation-of-keratinocyte-growth-and-hair-differentiation
#12
Liming Luan, Jianyun Shi, Zhengquan Yu, Thomas Andl
Emerging evidence indicates that even subtle changes in the expression of key genes of signalling pathways can have profound effects. MicroRNAs (miRNAs) are masters of subtlety and generally have only mild effects on their target genes. The microRNA miR-31 is one of the major microRNAs in many cutaneous conditions associated with activated keratinocytes, such as the hyperproliferative diseases psoriasis, non-melanoma skin cancer and hair follicle growth. miR-31 is a marker of the hair growth phase, and in our miR-31 transgenic mouse model it impairs the function of keratinocytes...
June 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28344658/flightless-i-governs-cell-fate-by-recruiting-the-sumo-isopeptidase-senp3-to-distinct-hox-genes
#13
Arnab Nayak, Anja Reck, Christian Morsczeck, Stefan Müller
BACKGROUND: Despite recent studies on the role of ubiquitin-related SUMO modifier in cell fate decisions, our understanding on precise molecular mechanisms of these processes is limited. Previously, we established that the SUMO isopeptidase SENP3 regulates chromatin assembly of the MLL1/2 histone methyltransferase complex at distinct HOX genes, including the osteogenic master regulator DLX3. A comprehensive mechanism that regulates SENP3 transcriptional function was not understood. RESULTS: Here, we identified flightless-I homolog (FLII), a member of the gelsolin family of actin-remodeling proteins, as a novel regulator of SENP3...
2017: Epigenetics & Chromatin
https://www.readbyqxmd.com/read/28298997/tricho-dento-osseous-syndrome-and-precocious-eruption
#14
Parul Jain, Rahul Kaul, Subrata Saha, Subir Sarkar
Tricho-dento-osseous syndrome (TDO), an uncommon form of ectodermal dysplasia is an autosomal dominant genetic disorder which is characterized by inherited defects in tissues arising from epithelial-mesenchymal interaction. Genetic studies have revealed that it is caused by mutation in the DLX3 gene. TDO presents with a great phenotypic heterogeneity and studies have suggested that this heterogeneity is the result of environmental factors or other genetic modifiers. In this article, we report a case of TDO in which the child had typical clinical features of hair, teeth and bone defects, as seen in TDO...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28186503/a-novel-dlx3-pkc-integrated-signaling-network-drives-keratinocyte-differentiation
#15
Elisabetta Palazzo, Meghan D Kellett, Christophe Cataisson, Paul W Bible, Shreya Bhattacharya, Hong-Wei Sun, Anna C Gormley, Stuart H Yuspa, Maria I Morasso
Epidermal homeostasis relies on a well-defined transcriptional control of keratinocyte proliferation and differentiation, which is critical to prevent skin diseases such as atopic dermatitis, psoriasis or cancer. We have recently shown that the homeobox transcription factor DLX3 and the tumor suppressor p53 co-regulate cell cycle-related signaling and that this mechanism is functionally involved in cutaneous squamous cell carcinoma development. Here we show that DLX3 expression and its downstream signaling depend on protein kinase C α (PKCα) activity in skin...
April 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28135572/dlx3-mutation-negatively-regulates-odontogenic-differentiation-of-human-dental-pulp-cells
#16
Li Zeng, Na Zhao, Dong Han, Haochen Liu, Yang Liu, Yixiang Wang, Hailan Feng
OBJECTIVES: The purpose of this study was to investigate the role of a novel mutant DLX3 on the odontogenic differentiation of human dental pulp cells (hDPCs) in tricho-dento-osseous (TDO) syndrome. DESIGN: hDPCs were obtained from the healthy premolars, stably-expressing wild-type DLX3 (WT), novel mutant DLX3 (Mu) and control vector (NC) cells were generated using recombinant lentiviruses. The proliferation rates of WT-hDPCs and Mu-hDPCs were measured by CCK8 assay...
May 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28125839/generation-of-functional-lentoid-bodies-from-human-induced-pluripotent-stem-cells-derived-from-urinary-cells
#17
Qiuli Fu, Zhenwei Qin, Xiuming Jin, Lifang Zhang, Zhijian Chen, Jiliang He, Junfeng Ji, Ke Yao
Purpose: The pathological mechanisms underlying cataract formation remain largely unknown on account of the lack of appropriate in vitro cellular models. The aim of this study is to develop a stable in vitro system for human lens regeneration using pluripotent stem cells. Methods: Isolated human urinary cells were infected with four Yamanaka factors to generate urinary human induced pluripotent stem cells (UiPSCs), which were induced to differentiate into lens progenitor cells and lentoid bodies (LBs)...
January 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27996093/dlx3-and-gcm-1-functionally-coordinate-the-regulation-of-placental-growth-factor-in-human-trophoblast-derived-cells
#18
Sha Li, Mark S Roberson
Placental growth factor (PGF) is abundantly expressed by trophoblast cells within human placentae and is important for trophoblast development and placental vascularization. Circulating maternal serum levels of PGF are dynamically upregulated across gestation in normal pregnancies, whereas low circulating levels and placental production of PGF have been implicated in the pathogenesis of preeclampsia and other gestational diseases. However, the underlying molecular mechanism of regulating PGF expression in the human placenta remains poorly understood...
October 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27924851/senescence-novel-insight-into-dlx3-mutations-leading-to-enhanced-bone-formation-in-tricho-dento-osseous-syndrome
#19
Na Zhao, Dong Han, Haochen Liu, Yue Li, Sing-Wai Wong, Zhengyi Cao, Jian Xu, Xiaowei Zhang, Tao Cai, Yixiang Wang, Hailan Feng
The homeodomain transcription factor distal-less homeobox 3 gene (DLX3) is required for hair, tooth and skeletal development. DLX3 mutations have been found to be responsible for Tricho-Dento-Osseous (TDO) syndrome, characterized by kinky hair, thin-pitted enamel and increased bone density. Here we show that the DLX3 mutation (c.533 A>G; Q178R) attenuates osteogenic potential and senescence of bone mesenchymal stem cells (BMSCs) isolated from a TDO patient, providing a molecular explanation for abnormal increased bone density...
December 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27777986/transcription-factor-dlx3-induces-aryl-hydrocarbon-receptor-promoter-activity
#20
June Ho Shin, Mikel D Haggadone, John B Sunwoo
The Distal-less (Dlx) homeobox transcription factors (TFs) play a prominent role in regulating multiple facets of vertebrate biology. Though widely studied as mediators of tissue development, recent work has uncovered a role for this TF family in modulating the vertebrate hematopoietic compartment. Pertinent to our study, murine Dlx1-3 are expressed in an innate lymphocyte population known as natural killer (NK) cells, and they are implicated to assume a functional role in the NK cell maturation pathway. However, Dlx target genes are poorly understood...
September 2016: Biochemistry and Biophysics Reports
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