Results 91 to 100 of about 2,686,549 (398)

Multi‐omic characterization of consensus molecular subtype 1 (CMS1) colorectal cancer with dampened immune response improves precision medicine

open access: yesMolecular Oncology, EarlyView.
This study highlights the importance of multi‐omic analyses in characterizing colorectal cancers. Indeed, our analysis revealed a rare CMS1 exhibiting dampened immune activation, including reduced PD‐1 expression, moderate CD8+ T‐cell infiltration, and suppressed JAK/STAT pathway.
Livia Concetti   +10 more
wiley   +1 more source

The pivotal role of DNA methylation in the radio‐sensitivity of tumor radiotherapy

open access: yesCancer Medicine, 2018
Radiotherapy is an important modality for treatment of carcinomas; however, radio‐resistance is still a difficult problem. Aberrant epigenetic alterations play an important role in cancer development.
Xueru Zhu   +3 more
doaj   +1 more source

DNA demethylation by ROS1a in rice vegetative cells promotes methylation in sperm. [PDF]

open access: yes, 2019
Epigenetic reprogramming is required for proper regulation of gene expression in eukaryotic organisms. In Arabidopsis, active DNA demethylation is crucial for seed viability, pollen function, and successful reproduction. The DEMETER (DME) DNA glycosylase
Fischer, Robert L   +6 more
core   +2 more sources

Genome-wide DNA methylation comparison between live human brain and peripheral tissues within individuals

open access: yesTranslational Psychiatry, 2019
Differential DNA methylation in the brain is associated with many psychiatric diseases, but access to brain tissues is essentially limited to postmortem samples. The use of surrogate tissues has become common in identifying methylation changes associated
Patricia R. Braun   +12 more
semanticscholar   +1 more source

Ubiquitination of transcription factors in cancer: unveiling therapeutic potential

open access: yesMolecular Oncology, EarlyView.
In cancer, dysregulated ubiquitination of transcription factors contributes to the uncontrolled growth and survival characteristics of tumors. Tumor suppressors are degraded by aberrant ubiquitination, or oncogenic transcription factors gain stability through ubiquitination, thereby promoting tumorigenesis.
Dongha Kim, Hye Jin Nam, Sung Hee Baek
wiley   +1 more source

Discovering the key genes and important DNA methylation regions in breast cancer

open access: yesHereditas, 2022
Background Breast cancer is the malignant tumor with the highest incidence in women. DNA methylation has an important effect on breast cancer, but the effect of abnormal DNA methylation on gene expression in breast cancer is still unclear.
Yan-Ni Cao   +4 more
doaj   +1 more source

DNA methylation and chromatin structure: The puzzling CpG islands [PDF]

open access: yes, 2005
DNA methylation is the epigenetic modification,which introduces 5mC as fifth base onto DNA. As for the distribution of 5rnCs, it is well known that they distribute themselves in a non-random fashion in genomic DNA so that methylation pattern is ...
CAIAFA, Paola, ZAMPIERI, Michele
core   +1 more source

Detecting homologous recombination deficiency for breast cancer through integrative analysis of genomic data

open access: yesMolecular Oncology, EarlyView.
This study develops a semi‐supervised classifier integrating multi‐genomic data (1404 training/5893 validation samples) to improve homologous recombination deficiency (HRD) detection in breast cancer. Our method demonstrates prognostic value and predicts chemotherapy/PARP inhibitor sensitivity in HRD+ tumours.
Rong Zhu   +12 more
wiley   +1 more source

DNA methylation underpins the epigenomic landscape regulating genome transcription in Arabidopsis

open access: yesGenome Biology, 2022
Background It is challenging to determine the effect of DNA methylation on the epigenetic landscape and the function in higher organisms due to the lack of DNA methylation-free mutants.
Lun Zhao   +6 more
doaj   +1 more source

IDN1 and IDN2 are required for de novo DNA methylation in Arabidopsis thaliana. [PDF]

open access: yes, 2009
DNA methylation is an epigenetic mark affecting genes and transposons. Screening for mutants that fail to establish DNA methylation yielded two we termed "involved in de novo" (idn) 1 and 2.
Ausin, Israel   +3 more
core  

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