Results 51 to 60 of about 648,959 (323)

Long-term pancreatic beta cell exposure to high levels of glucose but not palmitate induces DNA methylation within the insulin gene promoter and represses transcriptional activity. [PDF]

PLoS ONE, 2015
Recent studies have implicated epigenetics in the pathophysiology of diabetes. Furthermore, DNA methylation, which irreversibly deactivates gene transcription, of the insulin promoter, particularly the cAMP response element, is increased in diabetes ...
Kota Ishikawa, Shin Tsunekawa, Makoto Ikeniwa, Takako Izumoto, Atsushi Iida, Hidetada Ogata, Eita Uenishi, Yusuke Seino, Nobuaki Ozaki, Yoshihisa Sugimura, Yoji Hamada, Akio Kuroda, Keiko Shinjo, Yutaka Kondo, Yutaka Oiso   +14 more
doaj   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

SAM-DNMT3A, a strategy for induction of genome-wide DNA methylation, identifies DNA methylation as a vulnerability in ER-positive breast cancers

Nature Communications
DNA methylation is an epigenetic mark that plays a critical role in regulating gene expression. DNA methyltransferase (DNMT) inhibitors, inhibit global DNA methylation and have been a key tool in studies of DNA methylation. A major bottleneck is the lack
Mahnaz Hosseinpour, Xinqi Xi, Ling Liu, Luis Malaver-Ortega, Laura Perlaza-Jimenez, Jihoon E. Joo, Harrison M. York, Jonathan Beesley, C. Elizabeth Caldon, Pierre-Antoine Dugué, James G. Dowty, Senthil Arumugam, Melissa C. Southey, Joseph Rosenbluh   +13 more
doaj   +1 more source

Antagonism between DNA and H3K27 methylation at the imprinted Rasgrf1 locus. [PDF]

PLoS Genetics, 2008
At the imprinted Rasgrf1 locus in mouse, a cis-acting sequence controls DNA methylation at a differentially methylated domain (DMD). While characterizing epigenetic marks over the DMD, we observed that DNA and H3K27 trimethylation are mutually exclusive,
Anders M Lindroth, Yoon Jung Park, Chelsea M McLean, Gregoriy A Dokshin, Jenna M Persson, Herry Herman, Diego Pasini, Xavier Miró, Mary E Donohoe, Jeannie T Lee, Kristian Helin, Paul D Soloway   +11 more
doaj   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Lowering DNA binding affinity of SssI DNA methyltransferase does not enhance the specificity of targeted DNA methylation in E. coli

Scientific Reports, 2021
Targeted DNA methylation is a technique that aims to methylate cytosines in selected genomic loci. In the most widely used approach a CG-specific DNA methyltransferase (MTase) is fused to a sequence specific DNA binding protein, which binds in the ...
Krystyna Ślaska-Kiss, Nikolett Zsibrita, Mihály Koncz, Pál Albert, Ákos Csábrádi, Sarolta Szentes, Antal Kiss   +6 more
doaj   +1 more source

Methyl-CpG-binding domain sequencing reveals a prognostic methylation signature in neuroblastoma [PDF]

, 2015
Accurate assessment of neuroblastoma outcome prediction remains challenging. Therefore, this study aims at establishing novel prognostic tumor DNA methylation biomarkers.
, Berbegall, Ana P., Bienertova-Vasku, Julie, Bown, Nick, Cannoodt, Robrecht, Clément, Nathalie, Combaret, Valérie, De Preter, Katleen, De Wilde, Bram, Decock, Anneleen, Haber, Michelle, Hoyoux, Claire, Laureys, Geneviève, Murray, Jayne, Noguera, Rosa, Ongenaert, Maté, Pierron, Gaelle, Schleiermacher, Gudrun, Schulte, Johannes H., Speleman, Frank, Stallings, Ray L., Tweddle, Deborah A., Van Roy, Nadine, Vandesompele, Jo, Verniers, Kimberly   +24 more
core   +2 more sources

Targeting EZH2 reverses thyroid cell dedifferentiation and enhances iodide uptake in anaplastic thyroid cancer

FEBS Letters, EarlyView.
Anaplastic thyroid cancer (ATC) lacks iodide uptake ability due to MAPK activation increasing the expression of the histone methyltransferase EZH2, which represses thyroid differentiation genes (TDGs) such as the sodium iodide symporter (NIS). Dual inhibition of MAPK (U0126) and EZH2 (EPZ6438/Tazemetostat) reverses this mechanism, thus restoring TDG ...
Diego Claro de Mello, Marcella Maringolo Cristovão, Guilherme Henrique, Vinicius Gonçalves Rodrigues, Caroline Serrano‐Nascimento, Edna Teruko Kimura, Cesar Seigi Fuziwara   +6 more
wiley   +1 more source

The biological embedding of early-life socioeconomic status and family adversity in children's genome-wide DNA methylation. [PDF]

, 2018
AimTo examine variation in child DNA methylation to assess its potential as a pathway for effects of childhood social adversity on health across the life course.Materials & methodsIn a diverse, prospective community sample of 178 kindergarten ...
Adler, Nancy E, Boyce, W Thomas, Bush, Nicole R, Edgar, Rachel D, Essex, Marilyn J, Kobor, Michael S, MacIsaac, Julia L, McEwen, Lisa M, Park, Mina   +8 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

FEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang, Naoki Sunagawa, Toma Kashima, Kiyohiko Igarashi, Akimasa Miyanaga, Shinya Fushinobu   +5 more
wiley   +1 more source