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https://www.readbyqxmd.com/read/28219444/a-functional-snp-associated-with-atopic-dermatitis-controls-cell-type-specific-methylation-of-the-vstm1-gene-locus
#1
Dilip Kumar, Kia Joo Puan, Anand Kumar Andiappan, Bernett Lee, Geertje H A Westerlaken, Doreen Haase, Rossella Melchiotti, Zhuang Li, Nurhashikin Yusof, Josephine Lum, Geraldine Koh, Shihui Foo, Joe Yeong, Alexessander Couto Alves, Juha Pekkanen, Liang Dan Sun, Astrid Irwanto, Benjamin P Fairfax, Vivek Naranbhai, John E A Common, Mark Tang, Chin Keh Chuang, Marjo-Riitta Jarvelin, Julian C Knight, Xuejun Zhang, Fook Tim Chew, Shyam Prabhakar, Liu Jianjun, De Yun Wang, Francesca Zolezzi, Michael Poidinger, E Birgitte Lane, Linde Meyaard, Olaf Rötzschke
BACKGROUND: Expression quantitative trait loci (eQTL) databases represent a valuable resource to link disease-associated SNPs to specific candidate genes whose gene expression is significantly modulated by the SNP under investigation. We previously identified signal inhibitory receptor on leukocytes-1 (SIRL-1) as a powerful regulator of human innate immune cell function. While it is constitutively high expressed on neutrophils, on monocytes the SIRL-1 surface expression varies strongly between individuals...
February 20, 2017: Genome Medicine
https://www.readbyqxmd.com/read/28188177/automethylation-of-protein-arginine-methyltransferase-7-and-its-impact-on-breast-cancer-progression
#2
Pengyu Geng, Yu Zhang, Xiaoqing Liu, Na Zhang, Yingqi Liu, Xin Liu, Cong Lin, Xu Yan, Zhongwei Li, Guannan Wang, Yuxin Li, Jiang Tan, Dong-Xu Liu, Baiqu Huang, Jun Lu
Protein arginine methyltransferases (PRMTs) catalyze protein arginine methylation and are linked to carcinogenesis and metastasis. Some members of PRMTs have been found to undergo automethylation; however, the biologic significance of this self-modification is not entirely clear. In this report, we demonstrate that R531 of PRMT7 is self-methylated, both in vitro and in vivo Automethylation of PRMT7 plays a key role in inducing the epithelial-mesenchymal transition (EMT) program and in promoting the migratory and invasive behavior of breast cancer cells...
February 10, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28125315/mirna-34c-inhibits-myoblasts-proliferation-by-targeting-yy1
#3
Meng Wang, Chuncheng Liu, Yang Su, Kuo Zhang, Yuying Zhang, Min Chen, Mengxu Ge, Lijie Gu, Tianyu Lu, Ning Li, Zhengquan Yu, Qingyong Meng
miRNAs are increasingly being implicated as key regulators of cell proliferation, apoptosis, and differentiation. miRNA-34c appears to play a crucial role in cancer pathogenesis wherein it exerts its effect as a tumor suppressor. However, the role of miR-34c in myoblast proliferation remains poorly understood. Here, we found that overexpression miR-34c inhibited myoblasts proliferation by reducing the protein and mRNA expression of cell cycle genes. In contrast, blocking the function of miR-34c promoted myoblasts proliferation and increased the protein and mRNA expression of cell cycle genes...
January 26, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28123534/expression-and-clinical-significance-of-pcg-associated-protein-rybp-in-hepatocellular-carcinoma
#4
Xiaonian Zhu, Meng Yan, Wei Luo, Wei Liu, Yuan Ren, Chunhua Bei, Guifang Tang, Ruiling Chen, Shengkui Tan
Ring1 and YY1 binding protein (RYBP), a member of the polycomb group proteins, has been implicated in transcription repression and tumor cell-specific apoptosis. Previously, RYBP has been reported as a putative tumor suppressor in cancer tissues by regulating mouse double minute 2 homolog-p53 signaling. However, the exact role and underlying mechanisms of RYBP in cancer remain to be fully elucidated. The present study investigated the expression profile of RYBP in hepatocellular carcinoma (HCC) and examined the association between the expression of RYBP and metastasis of HCC...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28101571/upregulation-of-mir-146a-by-yy1-depletion-correlates-with-delayed-progression-of-prostate-cancer
#5
Yeqing Huang, Tao Tao, Chunhui Liu, Han Guan, Guangyuan Zhang, Zhixin Ling, Lei Zhang, Kai Lu, Shuqiu Chen, Bin Xu, Ming Chen
Previously published studies explained that the excessive expression of miR-146a influences the prostate cancer (PCa) cells in terms of apoptosis, progression, and viability. Although miR-146a acts as a tumor suppressor, current knowledge on the molecular mechanisms that controls its expression in PCa is limited. In this study, gene set enrichment analysis (GSEA) showed negatively enriched expression of miR-146a target gene sets and positively enriched expression of gene sets suppressed by the enhancer of zeste homolog 2 (EZH2) after YY1 depletion in PCa cells...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28095641/melatonin-ameliorates-alcohol-induced-bile-acid-synthesis-by-enhancing-mir-497-expression
#6
Yong Deuk Kim, Seung-Lark Hwang, Eun-Joo Lee, Hyeong-Mi Kim, Myung-Jin Chung, Ahmed K Elfadl, Sung-Eun Lee, Balachandar Nedumaran, Robert A Harris, Kyu-Shik Jeong
Alcoholic liver disease is a major cause of chronic liver disease worldwide, and cannabinoid receptor type 1 (CB1R) is involved in a diverse metabolic diseases. B-cell translocation gene 2 (BTG2) and yin yang 1 (YY1) are a potent regulator of biological conditions. Melatonin plays a crucial role in regulating diverse physiological functions and metabolic homeostasis. MicroRNAs are key regulators of various biological processes. Herein, we demonstrate that melatonin improves bile acid synthesis in the liver of alcohol-fed mice by controlling miR-497 expression...
March 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28088786/ezh2-inhibition-suppresses-endometrial-cancer-progression-via-mir-361-twist-axis
#7
Kei Ihira, Peixin Dong, Ying Xiong, Hidemichi Watari, Yosuke Konno, Sharon Jb Hanley, Masayuki Noguchi, Noriyuki Hirata, Futoshi Suizu, Takahiro Yamada, Masataka Kudo, Noriaki Sakuragi
EZH2 inhibition and reactivation of tumor suppressor microRNAs (miRNAs) represent attractive anti-cancer therapeutic strategies. We found that EZH2-suppressed let 7b and miR-361, two likely tumor suppressors, inhibited endometrial cancer (EC) cell proliferation and invasion, and abrogated cancer stem cell-like properties. In EC cells, EZH2 induced and functioned together with YY1 to epigenetically suppress miR-361, which upregulated Twist, a direct target of miR-361. Treating EC cells with GSK343, a specific EZH2 inhibitor, mimicked the effects of siRNA-mediated EZH2 knockdown, upregulating miR-361 and downregulating Twist expression...
January 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28077637/role-of-litopenaeus-vannamei-yin-yang-1-in-the-regulation-of-the-white-spot-syndrome-virus-immediate-early-gene-ie1
#8
Ping-Han Huang, Ting-Yi Huang, Pei-Si Cai, Li-Kwan Chang
: Yin Yang 1 (YY1) is a multifunctional zinc-finger transcription factor that regulates many key cellular processes. In this study, we report the cloning of YY1 from shrimp, Litopenaeus vannamei, (LvYY1). The study shows that LvYY1 is ubiquitously expressed in shrimp tissues, and knockdown of LvYY1 expression by dsRNA injection in WSSV-infected shrimp reduced both mRNA levels of the WSSV immediate-early gene, ie1, as well as overall copy numbers of the WSSV genome. The cumulative mortality of infected shrimp also declined with LvYY1 dsRNA injection...
January 11, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28065881/an-integrated-transcriptomics-guided-genome-wide-promoter-analysis-and-next-generation-proteomics-approach-to-mine-factor-s-regulating-cellular-differentiation
#9
Kamal Mandal, Samuel L Bader, Pankaj Kumar, Dipankar Malakar, David S Campbell, Bhola Shankar Pradhan, Rajesh K Sarkar, Neerja Wadhwa, Souvik Sensharma, Vaibhav Jain, Robert L Moritz, Subeer S Majumdar
Differential next-generation-omics approaches aid in the visualization of biological processes and pave the way for divulging important events and/or interactions leading to a functional output at cellular or systems level. To this end, we undertook an integrated Nextgen transcriptomics and proteomics approach to divulge differential gene expression of infant and pubertal rat Sertoli cells (Sc).Unlike, pubertal Sc, infant Sc are immature and fail to support spermatogenesis. We found exclusive association of 14 and 19 transcription factor binding sites to infantile and pubertal states of Sc, respectively, using differential transcriptomics-guided genome-wide computational analysis of relevant promoters employing 220 Positional Weight Matrices from the TRANSFAC database...
January 8, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28028181/rybp-expression-is-regulated-by-klf4-and-sp1-and-is-related-to-hepatocellular-carcinoma-prognosis
#10
Qiaojiajie Zhao, Weihua Cai, Xuan Zhang, Shuo Tian, Junwen Zhang, Haibo Li, Congcong Hou, Xiaoli Ma, Hong Chen, Bingren Huang, Deng Chen
The expression of Ring1- and YY1-binding protein (RYBP) is reduced in several human cancers, but the molecular mechanism(s) have remained elusive. In this study, we used human hepatocellular carcinoma (HCC) cell lines and tissue specimens to study the mechanism and herein report several new findings. First, we cloned and characterized the basal promoter region of the human RYBP gene. We found that the decreased RYBP expression in HCC tissues was not due to promoter sequence variation/polymorphisms or CpG dinucleotide methylation...
February 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27989698/tumor-suppressor-rybp-harbors-three-nuclear-localization-signals-and-its-cytoplasm-located-mutant-exerts-more-potent-anti-cancer-activities-than-corresponding-wild-type
#11
Kuan Tan, Xuan Zhang, Xiaojie Cong, Bingren Huang, Hong Chen, Deng Chen
Ectopically expressed Ring1 and YY1 binding protein (RYBP) induces tumor cell apoptosis through promoting the formation of the death-inducing signaling complex (DISC) in the cytoplasm. However, transiently overexpressed as well as endogenous RYBP in tumor tissues were observed to be mainly located in the nucleus while that in adjacent non-tumor tissues distributed majorly in the cytoplasm. Currently, we do not know the nuclear localization signals and biological function of different subcellular location of RYBP...
October 27, 2016: Cellular Signalling
https://www.readbyqxmd.com/read/27983635/new-cross-talk-layer-between-ultraconserved-non-coding-rnas-micrornas-and-polycomb-protein-yy1-in-bladder-cancer
#12
Sara Terreri, Montano Durso, Vincenza Colonna, Alessandra Romanelli, Daniela Terracciano, Matteo Ferro, Sisto Perdonà, Luigi Castaldo, Ferdinando Febbraio, Filomena de Nigris, Amelia Cimmino
MicroRNAs (miRNAs) are highly conserved elements in mammals, and exert key regulatory functions. Growing evidence shows that miRNAs can interact with another class of non-coding RNAs, so-called transcribed ultraconserved regions (T-UCRs), which take part in transcriptional, post-transcriptional and epigenetic regulation processes. We report here the interaction of miRNAs and T-UCRs as a network modulating the availability of these non-coding RNAs in bladder cancer cells. In our cell system, antagomiR-596 increased the expression of T-UCR 201+...
December 14, 2016: Genes
https://www.readbyqxmd.com/read/27976702/mir-150-promotes-cellular-metastasis-in-non-small-cell-lung-cancer-by-targeting-foxo4
#13
Hui Li, Ruoyun Ouyang, Zi Wang, Weihua Zhou, Huiyong Chen, Yawen Jiang, Yibin Zhang, Hui Li, Mengting Liao, Weiwei Wang, Mao Ye, Zhigang Ding, Xueping Feng, Jing Liu, Bin Zhang
Previous studies have shown that dysregulation of microRNA-150 (miR-150) is associated with aberrant proliferation of human non-small cell lung cancer (NSCLC) cells. However, whether miR-150 has a critical role in NSCLC cell metastasis is unknown. Here, we reveal that the critical pro-metastatic role of miR-150 in the regulation of epithelial-mesenchymal-transition (EMT) through down-regulation of FOXO4 in NSCLC. In vitro, miR-150 targets 3'UTR region of FOXO4 mRNA, thereby negatively regulating its expression...
December 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27939641/loss-of-function-mutations-in-yy1ap1-lead-to-grange-syndrome-and-a-fibromuscular-dysplasia-like-vascular-disease
#14
Dong-Chuan Guo, Xue-Yan Duan, Ellen S Regalado, Lauren Mellor-Crummey, Callie S Kwartler, Dong Kim, Kenneth Lieberman, Bert B A de Vries, Rolph Pfundt, Albert Schinzel, Dieter Kotzot, Xuetong Shen, Min-Lee Yang, Michael J Bamshad, Deborah A Nickerson, Heather L Gornik, Santhi K Ganesh, Alan C Braverman, Dorothy K Grange, Dianna M Milewicz
Fibromuscular dysplasia (FMD) is a heterogeneous group of non-atherosclerotic and non-inflammatory arterial diseases that primarily involves the renal and cerebrovascular arteries. Grange syndrome is an autosomal-recessive condition characterized by severe and early-onset vascular disease similar to FMD and variable penetrance of brachydactyly, syndactyly, bone fragility, and learning disabilities. Exome-sequencing analysis of DNA from three affected siblings with Grange syndrome identified compound heterozygous nonsense variants in YY1AP1, and homozygous nonsense or frameshift YY1AP1 variants were subsequently identified in additional unrelated probands with Grange syndrome...
January 5, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/27932267/human-pre-pik3c2b-an-intronic-cis-element-with-dual-function-of-activation-and-repression
#15
Jayant Maini, Mohsen Ghasemi, Deepti Yandhuri, Suman S Thakur, Vani Brahmachari
The Polycomb/Trithorax Responsive Elements (PRE/TREs) are the cis-regulatory sequences that interact with both repressive (PcG) as well as activating (TrxG) complexes. However, most of the mammalian PREs are demonstrated to interact with the repressive polycomb (PcG) complexes only. We have carried out an unbiased search for proteins interacting with human PRE-PIK3C2B (hPRE-PIK3C2B) based on DNA affinity purification followed by mass spectrometry and identified MLL, MLL4 and WDR87 among other proteins in three biological replicates in HEK, U87 and HeLa cell lines...
December 6, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27922002/targeting-the-notch-regulated-non-coding-rna-tug1-for-glioma-treatment
#16
Keisuke Katsushima, Atsushi Natsume, Fumiharu Ohka, Keiko Shinjo, Akira Hatanaka, Norihisa Ichimura, Shinya Sato, Satoru Takahashi, Hiroshi Kimura, Yasushi Totoki, Tatsuhiro Shibata, Mitsuru Naito, Hyun Jin Kim, Kanjiro Miyata, Kazunori Kataoka, Yutaka Kondo
Targeting self-renewal is an important goal in cancer therapy and recent studies have focused on Notch signalling in the maintenance of stemness of glioma stem cells (GSCs). Understanding cancer-specific Notch regulation would improve specificity of targeting this pathway. In this study, we find that Notch1 activation in GSCs specifically induces expression of the lncRNA, TUG1. TUG1 coordinately promotes self-renewal by sponging miR-145 in the cytoplasm and recruiting polycomb to repress differentiation genes by locus-specific methylation of histone H3K27 via YY1-binding activity in the nucleus...
December 6, 2016: Nature Communications
https://www.readbyqxmd.com/read/27913726/competitive-binding-between-seryl-trna-synthetase-yy1-complex-and-nfkb1-at-the-distal-segment-results-in-differential-regulation-of-human-vegfa-promoter-activity-during-angiogenesis
#17
Chuan-Yang Fu, Po-Chun Wang, Huai-Jen Tsai
Vascular endothelial growth factor (VEGF) plays a pivotal role in angiogenesis. Previous studies focused on transcriptional regulation modulated by proximal upstream cis-regulatory elements (CREs) of the human vegfa promoter. However, we hypothesized that distal upstream CREs may also be involved in controlling vegfa transcription. In this study, we found that the catalytic domain of Seryl-tRNA synthetase (SerRS) interacted with transcription factor Yin Yang 1 (YY1) to form a SerRS/YY1 complex that negatively controls vegfa promoter activity through binding distal CREs at -4654 to -4623 of vegfa Particularly, we demonstrated that the -4654 to -4623 segment, which predominantly controls vegfa promoter activity, is involved in competitive binding between SerRS/YY1 complex and NFKB1...
December 1, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27910161/mir-29a-regulates-vascular-neointimal-hyperplasia-by-targeting-yy1
#18
Yu Zhang, Yong Hui Li, Chao Liu, Chan-Juan Nie, Xin-Hua Zhang, Cui-Ying Zheng, Wen Jiang, Wei-Na Yin, Ming-Hui Ren, Yu-Xin Jin, Shu-Feng Liu, Bin Zheng, Jin-Kun Wen
OBJECTIVES: The formation of vascular neointima is mainly related to impairment of the vascular endothelial barrier and abnormal proliferation and migration of smooth muscle cells. The objective of this study was to investigate whether miR-29a exerts any promoting effect on the vascular neointimal hyperplasia and if so, its mechanism. MATERIALS AND METHODS: RT-qPCR was performed to determine expression of miR-29a in vascular smooth muscle cells (VSMC) and vascular neointimal hyperplasia...
December 2, 2016: Cell Proliferation
https://www.readbyqxmd.com/read/27900357/datasets-of-yy1-expression-in-rheumatoid-arthritis-patients
#19
Jinpiao Lin, Yujue He, Junmin Chen, Zhiyong Zeng, Bin Yang, Qishui Ou
The data presented in this article are related to the research article entitled "A critical role of transcription factor YY1 in rheumatoid arthritis by regulation of interleukin-6" (J. Lin, Y. He, J. Chen, Z. Zeng, B. Yang, Q. Ou, 2016) [1]. The article describes YY1 overexpression is specific for RA, but not for SLE, SS, DM or MCTD. In early RA, YY1 expression is also increased. In asymptomatic subjects with RF or ACPA positive who have high risk for developing RA, the YY1 expression is not increased obviously...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27857184/yy1-binding-association-with-sex-biased-transcription-revealed-through-x-linked-transcript-levels-and-allelic-binding-analyses
#20
Chih-Yu Chen, Wenqiang Shi, Bradley P Balaton, Allison M Matthews, Yifeng Li, David J Arenillas, Anthony Mathelier, Masayoshi Itoh, Hideya Kawaji, Timo Lassmann, Yoshihide Hayashizaki, Piero Carninci, Alistair R R Forrest, Carolyn J Brown, Wyeth W Wasserman
Sex differences in susceptibility and progression have been reported in numerous diseases. Female cells have two copies of the X chromosome with X-chromosome inactivation imparting mono-allelic gene silencing for dosage compensation. However, a subset of genes, named escapees, escape silencing and are transcribed bi-allelically resulting in sexual dimorphism. Here we conducted in silico analyses of the sexes using human datasets to gain perspectives into such regulation. We identified transcription start sites of escapees (escTSSs) based on higher transcription levels in female cells using FANTOM5 CAGE data...
November 18, 2016: Scientific Reports
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