Results 41 to 50 of about 64,774 (259)

Networking and Specificity-Changing DNA Methyltransferases in Helicobacter pylori

Frontiers in Microbiology, 2020
Epigenetic DNA base methylation plays important roles in gene expression regulation. We here describe a gene expression regulation network consisting of many DNA methyltransferases each frequently changing its target sequence-specificity.
Hirokazu Yano, Hirokazu Yano, Md. Zobaidul Alam, Emiko Rimbara, Tomoko F. Shibata, Masaki Fukuyo, Yoshikazu Furuta, Yoshikazu Furuta, Tomoaki Nishiyama, Shuji Shigenobu, Mitsuyasu Hasebe, Mitsuyasu Hasebe, Atsushi Toyoda, Yutaka Suzuki, Sumio Sugano, Sumio Sugano, Keigo Shibayama, Ichizo Kobayashi, Ichizo Kobayashi, Ichizo Kobayashi, Ichizo Kobayashi, Ichizo Kobayashi   +21 more
doaj   +1 more source

Targets of histone H3 lysine 9 methyltransferases

Frontiers in Cell and Developmental Biology, 2022
Histone H3 lysine 9 di- and trimethylation are well-established marks of constitutively silenced heterochromatin domains found at repetitive DNA elements including pericentromeres, telomeres, and transposons. Loss of heterochromatin at these sites causes
Aidan J. Levinsky, Aidan J. Levinsky, Gregor McEdwards, Gregor McEdwards, Nasha Sethna, Nasha Sethna, Mark A. Currie, Mark A. Currie   +7 more
doaj   +1 more source

Epigenetic reprogramming of lineage switching in cancer

FEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı, Burcu Akman, Ezgi Bağırsakçı, Nese Atabey, Serap Erkek‐Ozhan   +4 more
wiley   +1 more source

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Liquid biopsy‐based diagnostic evaluation of hypermethylated CpG sites for ovarian cancer diagnosis

Molecular Oncology, EarlyView.
This schematic outlines the workflow from biomarker identification to duplex MethyLight assay validation for epithelial ovarian cancer diagnosis using cfDNA‐based liquid biopsy. Initial screening of hypermethylated CpG candidates (cg02957270, cg10061138 cg00480298, COL2A1) was performed in tissue using ARMS‐PCR, COBRA, qPCR and image analysis. Selected
Deepa Bisht, Sameer Gupta, Amrita Chaurasia, Manisha Sachan   +3 more
wiley   +1 more source

Photocaged Dinucleoside Tetraphosphates for Light‐Mediated Activation of 5′ Cap Interactions and Translation In Vitro

ChemistryEurope
Dinucleoside tetraphosphates (Np4N) have been reported as 5′ caps of RNAs in bacteria and mammalian cells. The guanosine‐based version (Gp4N) resembles the canonical eukaryotic 5′ cap (m7Gp3N), which is a central platform for cap‐interacting proteins ...
Cedrik Kühling, Wiebke Teich, Bayram Terzi, Helena Schepers, Sabine Hüwel, Andrea Rentmeister   +5 more
doaj   +1 more source

MOLECULAR DYNAMICS AND STRUCTURAL COMPARISON APPROACH TO UNDERSTANDING THE ROLE OF KNOTS IN PROTEINS

TASK Quarterly, 2016
The role of knots in proteins is still unclear. In this short review, we summarize the current knowledge about structural and dynamical differences between knotted and unknotted proteins.
AGATA P. PERLINSKA, JOANNA M. MACNAR, JOANNA I. SULKOWSKA   +2 more
doaj   +1 more source

Epigenetic heterogeneity and plasticity in therapy‐induced tumor states through single‐cell multi‐omics

Molecular Oncology, EarlyView.
Single‐cell multi‐omics reveals epigenetic heterogeneity across therapy‐adaptive tumor states, including quiescent/dormant, drug‐tolerant persister, and EMT‐like phenotypes. By linking regulatory features with state‐associated biomarkers, these approaches inform biomarker‐guided therapeutic strategies for evolving tumors.
Hee Jung Kim, Hwiyeong Lee, Jin Hong, Daechan Park   +3 more
wiley   +1 more source

Fidelity index determination of DNA methyltransferases. [PDF]

PLoS ONE, 2013
DNA methylation is the most frequent form of epigenetic modification in the cell, which involves gene regulation in eukaryotes and protection against restriction enzymes in prokaryotes. Even though many methyltransferases exclusively modify their cognate
Janine G Borgaro, Nicole Benner, Zhenyu Zhu   +2 more
doaj   +1 more source

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

Molecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang, Hyung Seok Kim, Geum Ok Baek, Moon Gyeong Yoon, Su In Lee, Jee‐Yeong Jeong, Ji Eun Han, Soon Sun Kim, Jae Youn Cheong, Jung Woo Eun   +9 more
wiley   +1 more source