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https://www.readbyqxmd.com/read/29232705/etv2-mir-130a-jarid2-cascade-regulates-vascular-patterning-during-embryogenesis
#1
Bhairab N Singh, Naoyuki Tahara, Yasuhiko Kawakami, Satyabrata Das, Naoko Koyano-Nakagawa, Wuming Gong, Mary G Garry, Daniel J Garry
Remodeling of the primitive vasculature is necessary for the formation of a complex branched vascular architecture. However, the factors that modulate these processes are incompletely defined. Previously, we defined the role of microRNAs (miRNAs) in endothelial specification. In the present study, we further examined the Etv2-Cre mediated ablation of DicerL/L and characterized the perturbed vascular patterning in the embryo proper and yolk-sac. We mechanistically defined an important role for miR-130a, an Etv2 downstream target, in the mediation of vascular patterning and angiogenesis in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/29216786/a-study-of-single-nucleotide-polymorphisms-in-cd157-aim2-and-jarid2-genes-in-han-chinese-children-with-autism-spectrum-disorder
#2
Weiming Mo, Jun Liu, Zengyu Zhang, Hong Yu, Aiping Yang, Fei Qu, Pingfang Hu, Zhuo Liu, Fengpei Hu
PURPOSE: Autism spectrum disorder (ASD) is a group of developmental brain disorders caused by genetic and environmental factors. The objective of this study was to investigate whether single nucleotide polymorphisms (SNPs) in genes related to immune function were associated with ASD in Chinese Han children. MATERIALS AND METHODS: A total of 201 children with ASD and 200 age- and gender-matched healthy controls were recruited from September 2012 to June 2106. A TaqMan probe-based approach was used to genotype SNPs corresponding to rs28532698 and rs4301112 in CD157, rs855867 in AIM2, and rs2237126 in JARID2...
December 7, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/29196338/proteomics-and-metabolomics-identify-molecular-mechanisms-of-aging-potentially-predisposing-for-chronic-lymphocytic-leukemia
#3
Rupert Laurenz Mayer, Josef D Schwarzmeier, Marlene C Gerner, Andrea Bileck, Johanna C Mader, Samuel M Meier-Menches, Samuel M Gerner, Klaus G Schmetterer, Tobias Pukrop, Albrecht Reichle, Astrid Slany, Christopher Gerner
B cell chronic lymphocytic leukemia (B-CLL), the most common type of leukemia in adults, is still essentially incurable despite the development of novel therapeutic strategies. This reflects the incomplete understanding of the pathophysiology of this disease. A comprehensive proteome analysis of primary human B-CLL cells and B cells from younger as well as elderly healthy donors was performed. For comparison, also the chronic B cell leukemia cell line JVM-13 was included. A principal component analysis comprising 6945 proteins separated these four groups, placing B cells of aged-matched controls between those of young donors and B-CLL patients, while identifying JVM-13 as poorly related cells...
December 1, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29187421/identifying-genetic-differences-between-dongxiang-blue-shelled-and-white-leghorn-chickens-using-sequencing-data
#4
Qingbo Zhao, Rong-Rong Liao, Hao Sun, Zhe Zhang, Qi-Shan Wang, Chang-Suo Yang, Xiang-Zhe Zhang, Yu-Chun Pan
The Dongxiang Blue-shelled chicken is one of the most valuable Chinese indigenous poultry breeds. However, compared to the Italian native White Leghorn, although this Chinese breed possesses numerous favorable characteristics, it also exhibits lower growth performance and fertility. We utilize genotyping sequencing data in this paper obtained via genome reduction on a sequencing platform to detect 100,114 single nucleotide polymorphisms (SNPs) and perform further biological analysis and functional annotation...
November 29, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29129997/trichloroethylene-induced-alterations-in-dna-methylation-were-enriched-in-polycomb-protein-binding-sites-in-effector-memory-cd4-t-cells
#5
Kathleen M Gilbert, Sarah J Blossom, Brad Reisfeld, Stephen W Erickson, Kanan Vyas, Mary Maher, Brannon Broadfoot, Kirk West, Shasha Bai, Craig A Cooney, Sudeepa Bhattacharyya
Exposure to industrial solvent and water pollutant trichloroethylene (TCE) can promote autoimmunity, and expand effector/memory (CD62L) CD4(+) T cells. In order to better understand etiology reduced representation bisulfite sequencing was used to study how a 40-week exposure to TCE in drinking water altered methylation of ∼337 770 CpG sites across the entire genome of effector/memory CD4(+) T cells from MRL+/+ mice. Regardless of TCE exposure, 62% of CpG sites in autosomal chromosomes were hypomethylated (0-15% methylation), and 25% were hypermethylated (85-100% methylation)...
July 2017: Environmental Epigenetics
https://www.readbyqxmd.com/read/29102770/overexpression-of-djmj-differentially-affects-intestinal-stem-cells-and-differentiated-enterocytes
#6
Dang Ngoc Anh Suong, Kouhei Shimaji, Jung-Hoon Pyo, Joung-Sun Park, Hideki Yoshida, Mi-Ae Yoo, Masamitsu Yamaguchi
Jumonji (Jmj)/Jarid2 is a DNA-binding transcriptional repressor mediated via histone methylation. Nevertheless, the well-known function of Jmj is as a scaffold for the recruitment of various complexes including Polycomb repressive complex 2 (PRC2), and required for mouse embryonic stem cell development. However, PRC2 independent function is suggested for Drosophila Jumonji (dJmj). To clarify the function of dJmj during cell differentiation, we used Drosophila adult intestinal stem cell system that allows to follow stem cell behaviors in vivo...
November 2, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/29089047/whole-exome-sequencing-in-342-congenital-cardiac-left-sided-lesion-cases-reveals-extensive-genetic-heterogeneity-and-complex-inheritance-patterns
#7
Alexander H Li, Neil A Hanchard, Dieter Furthner, Susan Fernbach, Mahshid Azamian, Annarita Nicosia, Jill Rosenfeld, Donna Muzny, Lisa C A D'Alessandro, Shaine Morris, Shalini Jhangiani, Dhaval R Parekh, Wayne J Franklin, Mark Lewin, Jeffrey A Towbin, Daniel J Penny, Charles D Fraser, James F Martin, Christine Eng, James R Lupski, Richard A Gibbs, Eric Boerwinkle, John W Belmont
BACKGROUND: Left-sided lesions (LSLs) account for an important fraction of severe congenital cardiovascular malformations (CVMs). The genetic contributions to LSLs are complex, and the mutations that cause these malformations span several diverse biological signaling pathways: TGFB, NOTCH, SHH, and more. Here, we use whole exome sequence data generated in 342 LSL cases to identify likely damaging variants in putative candidate CVM genes. METHODS: Using a series of bioinformatics filters, we focused on genes harboring population-rare, putative loss-of-function (LOF), and predicted damaging variants in 1760 CVM candidate genes constructed a priori from the literature and model organism databases...
October 31, 2017: Genome Medicine
https://www.readbyqxmd.com/read/29058709/molecular-analysis-of-prc2-recruitment-to-dna-in-chromatin-and-its-inhibition-by-rna
#8
Xueyin Wang, Richard D Paucek, Anne R Gooding, Zachary Z Brown, Eva J Ge, Tom W Muir, Thomas R Cech
Many studies have revealed pathways of epigenetic gene silencing by Polycomb repressive complex 2 (PRC2) in vivo, but understanding the underlying molecular mechanisms requires biochemistry. Here we analyze interactions of reconstituted human PRC2 with nucleosome complexes. Histone modifications, the H3K27M cancer mutation, and inclusion of JARID2 or EZH1 in the PRC2 complex have unexpectedly minor effects on PRC2-nucleosome binding. Instead, protein-free linker DNA dominates the PRC2-nucleosome interaction...
October 23, 2017: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/29048434/common-microrna-mrna-interactions-exist-among-distinct-porcine-ipsc-lines-independent-of-their-metastable-pluripotent-states
#9
Shiqiang Zhang, Youlong Xie, Hongxia Cao, Huayan Wang
Previous evidences have proved that porcine-induced pluripotent stem cells (piPSCs) could be induced to distinctive metastable pluripotent states. This raises the issue of whether there is a common transcriptomic profile existing among the piPSC lines at distinctive state. In this study, we performed conjoint analysis of small RNA-seq and mRNA-seq for three piPSC lines which represent LIF dependence, FGF2 dependence and LFB2i dependence, respectively. Interestingly, we found there are 16 common microRNAs which potentially target 13 common mRNAs among the three piPSC lines...
August 31, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29046480/epigenetic-mechanisms-underlying-maternal-diabetes-associated-risk-of-congenital-heart-disease
#10
Madhumita Basu, Jun-Yi Zhu, Stephanie LaHaye, Uddalak Majumdar, Kai Jiao, Zhe Han, Vidu Garg
Birth defects are the leading cause of infant mortality, and they are caused by a combination of genetic and environmental factors. Environmental risk factors may contribute to birth defects in genetically susceptible infants by altering critical molecular pathways during embryogenesis, but experimental evidence for gene-environment interactions is limited. Fetal hyperglycemia associated with maternal diabetes results in a 5-fold increased risk of congenital heart disease (CHD), but the molecular basis for this correlation is unknown...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29044990/transcriptome-analysis-for-uvb-induced-phototoxicity-in-mouse-retina
#11
Mi-Jin An, Chul-Hong Kim, Gyu-You Nam, Dae-Hyun Kim, Sangmyung Rhee, Sung-Jin Cho, Jung-Woong Kim
Throughout life, the human eye is continuously exposed to sunlight and artificial lighting. Ambient light exposure can lead to visual impairment and transient or permanent blindness. To mimic benign light stress conditions, Mus musculus eyes were exposed to low-energy UVB radiation, ensuring no severe morphological changes in the retinal structure post-exposure. We performed RNA-seq analysis to reveal the early transcriptional changes and key molecular pathways involved before the activation of the canonical cell death pathway...
October 17, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28912479/late-stage-differentiation-of-embryonic-pancreatic-%C3%AE-cells-requires-jarid2
#12
Sara Cervantes, Marta Fontcuberta-PiSunyer, Joan-Marc Servitja, Rebeca Fernandez-Ruiz, Ainhoa García, Lidia Sanchez, Young-Sook Lee, Ramon Gomis, Rosa Gasa
Jarid2 is a component of the Polycomb Repressor complex 2 (PRC2), which is responsible for genome-wide H3K27me3 deposition, in embryonic stem cells. However, Jarid2 has also been shown to exert pleiotropic PRC2-independent actions during embryogenesis. Here, we have investigated the role of Jarid2 during pancreas development. Conditional ablation of Jarid2 in pancreatic progenitors results in reduced endocrine cell area at birth due to impaired endocrine cell differentiation and reduced prenatal proliferation...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28782268/reprogramming-antagonizes-the-oncogenicity-of-hoxa13-long-noncoding-rna-hottip-axis-in-gastric-cancer-cells
#13
Deng-Chyang Wu, Sophie S W Wang, Chung-Jung Liu, Kenly Wuputra, Kohsuke Kato, Yen-Liang Lee, Ying-Chu Lin, Ming-Ho Tsai, Chia-Chen Ku, Wen-Hsin Lin, Shin-Wei Wang, Shotaro Kishikawa, Michiya Noguchi, Chu-Chieh Wu, Yi-Ting Chen, Chee-Yin Chai, Chen-Lung Steve Lin, Kung-Kai Kuo, Ya-Han Yang, Hiroyuki Miyoshi, Yukio Nakamura, Shigeo Saito, Kyosuke Nagata, Chang-Shen Lin, Kazunari K Yokoyama
Reprogramming of cancer cells into induced pluripotent stem cells (iPSCs) is a compelling idea for inhibiting oncogenesis, especially through modulation of homeobox proteins in this reprogramming process. We examined the role of various long noncoding RNAs (lncRNAs)-homeobox protein HOXA13 axis on the switching of the oncogenic function of bone morphogenetic protein 7 (BMP7), which is significantly lost in the gastric cancer cell derived iPS-like cells (iPSLCs). BMP7 promoter activation occurred through the corecruitment of HOXA13, mixed-lineage leukemia 1 lysine N-methyltransferase, WD repeat-containing protein 5, and lncRNA HoxA transcript at the distal tip (HOTTIP) to commit the epigenetic changes to the trimethylation of lysine 4 on histone H3 in cancer cells...
August 7, 2017: Stem Cells
https://www.readbyqxmd.com/read/28765957/knockdown-of-jarid2-inhibits-the-proliferation-and-invasion-of-ovarian-cancer-through-the-pi3k-akt-signaling-pathway
#14
Jian Cao, Huiling Li, Guangquan Liu, Suping Han, Pengfei Xu
Protein Jumonji (JARID2), a member of the family of JmjC domain-containing proteins, has been reported to serve an important role in tumor growth and metastasis. However, the expression pattern and role of JARID2 in ovarian cancer remains unclear. Therefore, in the present study, the role of JARID2 in ovarian cancer was investigated, as well as the underlying mechanisms. The results of the present study demonstrated that the expression of JARID2 is upregulated in human ovarian cancer cell lines. Furthermore, downregulation of JARID2 significantly suppressed proliferation, migration, invasion and epithelial‑mesenchymal transition in human ovarian cancer cells...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28714012/knockdown-of-jarid2-inhibits-the-viability-and-migration-of-placenta-trophoblast-cells-in-preeclampsia
#15
Yatao Jiang, Yuqing Chen, Yanping Chen
Protein Jumonji (JARID2) is a member of the Jumonji family of proteins and has been demonstrated to regulate cell proliferation and invasion. However, little is known about the role of JARID2 in the metastasis of placenta trophoblast cells. In the present study, the effect and the underlying molecular mechanism of JARID2 on trophoblast cell viability and invasion was investigated. The expression of JARID2 in placental tissues was analyzed by reverse transcription‑quantitative polymerase chain reaction and western blotting...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28656062/c-myc-is-required-for-braf-v600e-induced-epigenetic-silencing-by-h3k27me3-in-tumorigenesis
#16
Yiping Qu, Qi Yang, Juan Liu, Bingyin Shi, Meiju Ji, Gang Li, Peng Hou
BRAF(V600E) mutation is frequently found in human cancers particularly thyroid cancer and melanoma, and is involved in the regulation of gene expression through activating MAPK/Erk signaling. Trimethylation of histone 3 lysine 27 (H3K27me3) is a critical epigenetic mark for the maintenance of gene silencing in tumorigenesis. However, molecular mechanism underlying the complex interplay between these two molecular events remains to be explored. In the present study, we conducted chromatin immunoprecipitation combined with next-generation sequencing (ChIP-Seq) and expression microarray analysis in NIH3T3 cells to explore the relationship between H3K27me3 and transcriptional regulation by BRAF(V600E) mutation...
2017: Theranostics
https://www.readbyqxmd.com/read/28630932/differential-intron-retention-in-jumonji-chromatin-modifier-genes-is-implicated-in-reptile-temperature-dependent-sex-determination
#17
Ira W Deveson, Clare E Holleley, James Blackburn, Jennifer A Marshall Graves, John S Mattick, Paul D Waters, Arthur Georges
In many vertebrates, sex of offspring is determined by external environmental cues rather than by sex chromosomes. In reptiles, for instance, temperature-dependent sex determination (TSD) is common. Despite decades of work, the mechanism by which temperature is converted into a sex-determining signal remains mysterious. This is partly because it is difficult to distinguish the primary molecular events of TSD from the confounding downstream signatures of sexual differentiation. We use the Australian central bearded dragon, in which chromosomal sex determination is overridden at high temperatures to produce sex-reversed female offspring, as a unique model to identify TSD-specific features of the transcriptome...
June 2017: Science Advances
https://www.readbyqxmd.com/read/28469672/stemness-maintenance-properties-in-human-oral-stem-cells-after-long-term-passage
#18
Francesca Diomede, Thangavelu Soundara Rajan, Valentina Gatta, Marco D'Aurora, Ilaria Merciaro, Marco Marchisio, Aurelio Muttini, Sergio Caputi, Placido Bramanti, Emanuela Mazzon, Oriana Trubiani
Background. Neural crest-derived mesenchymal stem cells (MSCs) from human oral tissues possess immunomodulatory and regenerative properties and are emerging as a potential therapeutic tool to treat diverse diseases, such as multiple sclerosis, myocardial infarction, and connective tissue damages. In addition to cell-surface antigens, dental MSCs express embryonic stem cell markers as neural crest cells originate from the ectoderm layer. In vitro passages may eventually modify these embryonic marker expressions and other stemness properties, including proliferation...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28461115/mir-155-contributes-to-th17-cells-differentiation-in-dextran-sulfate-sodium-dss-induced-colitis-mice-via-jarid2
#19
Meng Xu, Dongmei Zuo, Xingxing Liu, Heng Fan, Qianyun Chen, Shuangjiao Deng, Zhexing Shou, Qing Tang, Jia Yang, Zhen Nan, Hui Wu, Yalan Dong, Yujin Liu
MicroRNAs (miRNAs) play an important role in regulating immune system function by mRNA destabilisation or inhibition of translation. Recently, miR-155 was detected to be significantly up-regulated in colonic tissues of patients with active UC. However, it is unknown whether miR-155 is involved in the pathogenesis of UC and how it influences immune response in dextran sulfate sodium (DSS)-induced colitis mice. Here, we investigated the role of miR-155 in UC. Firstly, through bioinformatics analysis and luciferase report assay, we found Jarid2 was a direct target of miR-155; then, we carried out in situ hybridization, immunofluorescence and flow cytometry, and revealed that miR-155 levels were increased, Jarid2 levels were decreased and the frequency of Th17 cells was elevated in DSS-induced mice; we also used lentiviral vector to deliver miR-155 inhibition sequences to silence miR-155 that was effectively taken up by epithelial cells...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28445934/jarid2-is-essential-for-the-maintenance-of-tumor-initiating-cells-in-bladder-cancer
#20
Xin-Xing Zhu, Ya-Wei Yan, Chun-Zhi Ai, Shan Jiang, Shan-Shan Xu, Min Niu, Xiang-Zhen Wang, Gen-Shen Zhong, Xi-Feng Lu, Yu Xue, Shaoqi Tian, Guangyao Li, Shaojun Tang, Yi-Zhou Jiang
Bladder cancer is the most common urologic malignancy in China, with an increase of the incidence and mortality rates over past decades. Recent studies suggest that bladder tumors are maintained by a rare fraction of cells with stem cell proprieties. Targeting these bladder tumor initiating cell (TICs) population can overcome the drug-resistance of bladder cancer. However, the molecular and genetic mechanisms regulating TICs in bladder cancer remain poorly defined. Jarid2 is implicated in signaling pathways regulating cancer cell epithelial-mesenchymal transition, and stem cell maintenance...
April 11, 2017: Oncotarget
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