Results 61 to 70 of about 71,530 (247)

FBXL19 recruits CDK-Mediator to CpG islands of developmental genes priming them for activation during lineage commitment

eLife, 2018
CpG islands are gene regulatory elements associated with the majority of mammalian promoters, yet how they regulate gene expression remains poorly understood. Here, we identify FBXL19 as a CpG island-binding protein in mouse embryonic stem (ES) cells and
Emilia Dimitrova, Takashi Kondo, Angelika Feldmann, Manabu Nakayama, Yoko Koseki, Rebecca Konietzny, Benedikt M Kessler, Haruhiko Koseki, Robert J Klose   +8 more
doaj   +1 more source

Epigenome-wide association study reveals decreased average methylation levels years before breast cancer diagnosis [PDF]

, 2015
Interest in the potential of DNA methylation in peripheral blood as a biomarker of cancer risk is increasing. We aimed to assess whether epigenome-wide DNA methylation measured in peripheral blood samples obtained before onset of the disease is ...
Agnoli, C, Ashworth, A, Baglietto, L, Chadeau, M, Curry, E, Flanagan, JM, Flower, K, Frasca, G, Garcia-Closas, M, Jones, M, Krogh, V, Lund, E, Masala, G, Mattiello, A, Orr, N, Palli, D, Panico, S, Polidoro, S, Sacerdote, C, Sandanger, T, Severi, G, Swerdlow, A, Tomczyk, K, Tumino, R, van veldhoven, K, vineis, P   +25 more
core   +5 more sources

Factors to preserve CpG-rich sequences in methylated CpG islands [PDF]

BMC Genomics, 2015
Mammalian CpG islands (CGIs) normally escape DNA methylation in all adult tissues and developmental stages. However, in our previous study we unexpectedly identified many methylated CGIs in human peripheral blood leukocytes. Methylated CpG dinucleotides convert to TpG dinucleotides through deaminization of their cytosine bases more frequently than ...
Miyahara, Hiroki, Hirose, Osamu, Satou, Kenji, Yamada, Yoichi   +3 more
openaire   +2 more sources

Reduced Maintenance DNA Methylation Thresholds Enable Sensitive Reporter Assays for UHRF1 and DNMT1 Inhibition

Advanced Science, EarlyView.
The authors engineer colorectal cancer cells with reduced redundancy of UHRF1 and DNMT1, key DNA methylation maintenance factors, lowering the maintenance threshold and sensitizing cells to inhibition. They develop reporter assays driven by endogenous tumor‐suppressor gene promoters with enhanced sensitivity and dynamic range to demethylating drugs ...
Cuicui Xia, Ying Cui, Jiongliang Wang, Wenjing Bai, Danyang Wang, Yao Chen, Huahui Guo, Liangyi Zong, Bing Qin, Xintong Cai, Jie Wang, Jing Huang, Scott B. Rothbart, Zufeng Guo, Stephen B. Baylin, Xiangqian Kong   +15 more
wiley   +1 more source

CpG island composition differences are a source of gene expression noise indicative of promoter responsiveness

Genome Biology, 2018
Background Population phenotypic variation can arise from genetic differences between individuals, or from cellular heterogeneity in an isogenic group of cells or organisms. The emergence of gene expression differences between genetically identical cells
Michael D. Morgan, John C. Marioni
doaj   +1 more source

Trisomy 21 alters DNA methylation in parent-of-origin-dependent and independent manners [PDF]

, 2016
The supernumerary chromosome 21 in Down syndrome differentially affects the methylation statuses at CpG dinucleotide sites and creates genome-wide transcriptional dysregulation of parental alleles, ultimately causing diverse pathologies.
Alves da Silva, Antônio Francisco, Biselli-Périco, Joice Matos, Chuva de Sousa Lopes, Susana Marina, Fernandes, Maria Gomes, Francisco Junior, Ronaldo da Silva, Lopes Rios, Álvaro Fabricio, Machado, Douglas Terra, Machado, Filipe Brum, Medina-Acosta, Enrique, Mozer Rodrigues, Pedro Thyago, Pavarino, Érika Cristina, Santos-Rebouças, Cíntia Barros, Zampieri, Bruna Lancia   +12 more
core   +3 more sources

Inhibition of SIRT7 Overcomes Radioresistance in Pancreatic Neuroendocrine Tumors by Reactivating MEN1 Expression

Advanced Science, EarlyView.
Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang, Yan Wang, Yi Qin, Luohai Chen, Xiaowu Xu, Guixiong Fan, Desheng Jing, Miaoyan Wei, Xianjun Yu, Junfeng Xu, Shunrong Ji, Jie Chen   +11 more
wiley   +1 more source

Immortalization of T-cells is accompanied by gradual changes in CpG methylation resulting in a profile resembling a subset of T-cell leukemias [PDF]

, 2014
We have previously described gene expression changes during spontaneous immortalization of T-cells, thereby identifying cellular processes important for cell growth crisis escape and unlimited proliferation. Here, we analyze the same model to investigate
Borssén, Magnus, Chrzanowska, Krystyna H., Degerman, Sofie, Evelönn, Emma, Forestier, Erik, Keith, W. Nicol, Landfors, Mattias, Revie, John, Roos, Göran, Rydén, Patrik, Siwicki, Jan Konrad   +10 more
core   +1 more source

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source

Intra-Monozygotic Twin Pair Discordance and Longitudinal Variation of Whole-Genome Scale DNA Methylation in Adults. [PDF]

PLoS ONE, 2015
Monozygotic twins share identical genomic DNA and are indistinguishable using conventional genetic markers. Increasing evidence indicates that monozygotic twins are epigenetically distinct, suggesting that a comparison between DNA methylation patterns ...
Na Zhang, Shumin Zhao, Su-Hua Zhang, Jinzhong Chen, Daru Lu, Min Shen, Chengtao Li   +6 more
doaj   +1 more source