Articles tagged with Dna Methylation
Researchers found three distinct subtypes of non-Hodgkin's lymphoma, each more aggressive than the next, with varying levels of abnormal DNA methylation. This study suggests that epigenomic abnormalities play a significant role in cancer development and progression.
Researchers found a significant link between herbivore activity, phenotypic plasticity, and epigenetic changes in European holly. The study suggests that plants can quickly respond to environmental changes through epigenetic modifications, making them more resilient.
A study found that age drives molecular changes in genes, but diet can modulate these effects. Selenium and vitamin D reduced accumulation of epigenetic changes, while high blood folate and obesity increased them.
A NIH study found that changes in immune gene function may cause age-related macular degeneration (AMD). Decreased DNA methylation led to increased IL17RC protein, promoting inflammation and immune cell recruitment that damages the retina.
A University of British Columbia study reveals that childhood poverty and stress as an adult leave imprints on genes and predict future immune responses. The research found correlations between DNA methylation patterns and early life experiences.
A Simon Fraser University physicist has discovered a link between variable methylation in DNA and various attributes such as age, gender, stress, and socioeconomic status. The study found that childhood poverty left a detectable molecular mark on an individual's DNA, which correlated with gene expression.
Researchers from the University of North Carolina School have established a connection between histone H3 lysine 9 methylation and DNA methylation, implicating protein UHRF1 in their maintenance. This finding may provide clues to the underlying causes of disease and cancer.
Dr. Timothy Bestor's research could overturn a 20-year-old theory of carcinogenesis, instead proposing that methylation changes kill incipient cancer cells. The study aims to develop new methods to differentiate between 'driver' and 'passenger' epigenetic events in tumor development.
Recent research in epigenetics has identified two key tests that can predict brain tumor sensitivity to temozolomide and distinguish prostate cancer from benign growth. New epigenetic biomarkers are being rapidly developed to predict treatment performance and weaknesses of tumors.
Researchers found that fusion-negative prostate cancers have different DNA methylation patterns than healthy cells, with increased EZH2 enzyme activity. This discovery may lead to more specific treatments and improved diagnosis for prostate cancer patients.
A Thomas Jefferson University team found that histone-modifying proteins, such as TrxG and PcG, remain attached to DNA after replication, rather than histones. This challenges the longstanding paradigm of epigenetic marks and has significant implications for understanding gene expression and disease mechanisms.
Researchers found that DNA methylation modifications may contribute to phenotypic changes in humans and chimps. The study suggests that methylation differences between the species might be linked to human disease vulnerability.
New study reveals that genetic variations in DNA methylation patterns contribute to human susceptibility to cancer and other diseases. Researchers found hundreds of genes with distinct methylation profiles, many linked to specific human diseases.
Researchers mapped ant genomes to reveal relationship between epigenetic regulation and caste differentiation. DNA methylation patterns correlated with alternative splicing events and caste-specific genes.
Researchers at Ruhr-University Bochum found that acute stress increases DNA methylation of the oxytocin receptor gene, leading to excessive receptor production. This change may contribute to the development of chronic diseases such as cancer or depression.
Scientists discovered that exposure to pathogens causes significant changes in a plant's epigenetic code, which helps the plant develop resistance. These epigenetic changes are linked to genes responsible for coordinating stress responses, suggesting the epigenome plays a role in disease resistance.
Research found epigenetic changes, specifically DNA methylation, alter genes contributing to rheumatoid arthritis (RA) inflammation and joint damage. RA fibroblast-like synoviocytes display a unique DNA methylome signature compared to normal FLS.
Researchers identify DNA methylation profiles as potential biomarkers for detecting prostate cancer months earlier than current methods. The discovery also predicts recurrence risk and identifies genes that can be targeted with new drugs.
A new study by Karolinska Institutet researchers found that DNA methylation levels in white blood cells are lower in patients with schizophrenia and related to age of disease onset and treatment response. The discovery may lead to the development of a simple test to diagnose schizophrenia.
Researchers at UC Davis found that R-loops prevent methylation at CG island promoters, which are essential for 60% of human genes. This breakthrough could lead to treatments for autoimmune diseases by reversing cytosine methylation.
Researchers at Oregon State University have discovered two epigenetic mechanisms by which sulforaphane prevents cancer: HDAC inhibition and DNA methylation. These mechanisms work together to maintain proper cell function and prevent cancer.
A team of scientists led by Bing Ren has discovered how differential DNA methylation in the parental genomes sets the stage for selective expression of imprinted genes. The study found parent-of-origin specific DNA methylation imprints at 1,952 dinucleotide sequences, including previously unknown regions.
A new NIH study reveals that certain genes implicated in schizophrenia and autism show increased regulatory activity during a critical period of development, influenced by environmental factors. This discovery highlights the importance of epigenetic mechanisms like DNA methylation in shaping brain function and behavior.
A research team led by Prof. Dr. Wolfgang Linke has discovered that protein networks play a crucial role in stabilizing muscle fibers using the same mechanism as DNA methylation. The study found that disrupting this network leads to significant changes in muscle structure and function.
Researchers at University of Cambridge have mapped DNA methylation in human heart, revealing its connection to environmental factors such as diet and lifestyle. The study provides new insights into the genetic changes that can lead to heart disease and potential ways to identify and treat it.
Researchers found evidence of large-scale dynamic DNA demethylation in non-dividing brain cells, challenging scientific dogma. This discovery has major implications for understanding learning, memory, and mood regulation, as well as potential new treatments for depression and neurodegenerative disorders.
A study by CSHL and USC researchers reveals that methylation patterns are dynamic and can influence cell fate. The team observed that subtle changes in methylation within specific regions can lead to the activation of genes associated with particular cell types, challenging traditional views on epigenetics.
Scientists discovered that epigenetic modifications in plants, such as DNA methylation, are unstable and often disappear after a few generations. These changes can occur frequently but usually do not contribute significantly to long-term evolution.
Researchers at Salk Institute discover a "hidden" code linked to DNA that allows plants to develop and pass down new biological traits rapidly. The epigenetic code is found to evolve more quickly than the genetic code and strongly influence biological traits.
A UBC study found that parents' stress during their child's early years can leave lasting marks on their genes, affecting behavior and health in adolescence. Higher stress levels reported by mothers and fathers correlated with specific DNA methylation sites, including those involved in insulin production and brain development.
Research suggests maternal smoking during pregnancy may alter DNA methylation levels in the AXL gene, associated with increased asthma risk in children. The study found a stronger association between maternal smoking and DNA methylation in girls than boys.
Researchers found that a small RNA pathway is required to establish DNA methylation, a process that silences genes. This discovery may lead to new therapies for cancer and other diseases by reactivating silenced tumor-suppressor genes.
Researchers have identified two major sub-types of breast cancer based on DNA methylation profiles, which could help refine cancer classification and predict treatment response. The study also revealed new information about sub-types of breast cancer and the potential for epigenetic therapy.
Researchers identified a step-by-step process involving TET1 and Apobec1 that converts methylated cytosine into hydroxymethylated cytosine, indicating a potential unified mechanism for DNA methylation status change. The discovery has implications for understanding diseases associated with epigenetic abnormality.
Research suggests that specific genes are silenced by DNA methylating enzyme Dnmt3b, similar to those found in human tumors. This targeted silencing may be an initiating event in cancer development.
A new study reveals a previously unrecognized link between tobacco smoking and altered DNA methylation of the coagulation factor II receptor-like 3 (F2RL3) gene, possibly identifying an early stage of smoking-associated cardiovascular pathology.
Scientists found reprogramming errors in iPS cells, including a common defect near telomeres and centromeres. These hotspots resist non-CG methylation, but CG islands are affected, potentially limiting the fate of iPS cells.
A new study reveals that a biomarker test for DNA methylation is technically feasible and could aid in earlier and more precise diagnosis of melanoma. The test distinguishes malignant melanomas from non-malignant moles, with high predictive value.
A new study links an oncometabolite to widespread gene expression alterations in brain cancer and leukemia, promoting tumorigenesis. The research suggests that targeting the metabolic pathway may guide the development of new cancer therapies.
A new research paper published in the Journal of the National Cancer Institute reveals a genetic mutation that leads to abnormal metabolic processes in gliomas, potentially leading to targeted therapies. The study shows that almost all tumors with IDH mutations have the same methylation pattern.
Researchers developed a method to label and map the sixth nucleotide, 5-hydroxymethylcytosine (5-hmC), which is enriched on active genes. The method reveals its genome-wide distribution and functional significance in gene regulation and neurodegeneration.
Researchers trap and observe intermediate stage of DNA repair protein Al McBiotically theft, a process that regulates health conditions such as obesity, cancer, and diabetes. The study provides new insights into how proteins chemically alter biological molecules via oxidative demethylation.
The study sequenced the human methylome from peripheral blood mononuclear cells, identifying allele-specific methylation differences associated with gene expression. The findings suggest that parental gene imprinting may be more common than previously thought, with implications for understanding human health and disease.
UK scientists have reported direct evidence that taking up smoking results in epigenetic changes associated with cancer. A study funded by Cancer Research UK found women who started smoking had a higher risk of acquiring p16 methylation, a type of epigenetic change linked to tumor suppressor genes.
A study by Mayo Clinic and TGen reveals that DNA methylation is altered with increasing severity in multiple myeloma, leading to the overexpression of oncogenes. The researchers found hypomethylation at specific points of DNA, associated with myeloma development, and suggest it may have prognostic value.
Researchers at Johns Hopkins University have identified 13 genes associated with human body mass index, shedding light on the complex relationship between epigenetics and obesity. The study, published in Science Translational Medicine, used genome-wide profiling to uncover epigenetic fingerprints that correlate with body weight.
Researchers mapped epigenetic changes during blood cell differentiation, revealing complex patterns and potential applications for stem cell therapies. The study's findings could guide understanding of diseases like leukemia and lymphoma, paving the way for new treatments.
A UCLA team of scientists discovered a relationship between DNA methylation and nucleosome positioning, which compact and regulate access to DNA. This finding could lead to techniques to control DNA methylation patterns and prevent cancer.
Children conceived through assisted reproductive technology are at greater risk of birth defects and low birth weight, associated with obesity and diabetes. Geneticist Carmen Sapienza found altered DNA methylation and gene expression in 5-10% of these children.
Epigenetic signals vary across alleles in numerous genomic regions, influencing gene expression and regulation. The study reveals over 35,000 such sites across the genome, with implications for genetic studies of complex diseases, including psychiatric conditions.
Researchers created a detailed map of the human epigenome during embryonic development, identifying patterns of DNA methylation and its role in regulating gene expression. This breakthrough has significant implications for targeted differentiation of stem cells into specific organs, a crucial consideration for stem cell therapy.
A study published in PLoS ONE found a correlation between DNA methylation and heart failure, suggesting that environmental factors may play a key role in the development of the disease. The researchers compared DNA from diseased hearts with healthy hearts and found distinct 'marks' on the genome
Researchers analyzed DNA methylation in identical twins discordant for autoimmune disease lupus, finding widespread epigenetic changes that may play a role in the disease. The study suggests environmental factors and lifestyle differences may contribute to differential disease onset.
Researchers developed new tools to predict disease progression in acute childhood leukemia by analyzing DNA methylation patterns. The study found that specific genes' methylation levels correlate with treatment response, enabling identification of patients at risk of relapse.
Researchers at MDC Berlin-Buch show that DNA methylation regulates the development of blood cells from hematopoietic stem cells, with implications for cancer. The study found that manipulating DNA methylation levels can control the formation of specific blood cell lineages.
The NIH Roadmap Epigenomics Program awards $62 million to study the epigenome in various diseases and conditions. These studies aim to understand how diet, environmental exposures, and stress affect human health and disease.
Researchers at Karolinska Institutet found epigenetic DNA mutations in muscles of diabetics that reduce expression of PGC-1α gene. This could explain how environmental factors influence disease development.
A new USC study reveals that prenatal tobacco smoke exposure is associated with detectable changes in DNA methylation patterns, which may impact childhood asthma and cardiovascular disease. Researchers found that children exposed to maternal smoke had lower global methylation levels and higher methylation in certain genes.
A new study published in the Journal of the National Cancer Institute found that fecal DNA methylation can detect gastric and colorectal cancers. Methylation patterns were more likely to be found in advanced tumors, with detection rates of 57% for gastric cancer patients and 75% for colorectal cancer patients.
Scientists have developed a highly sensitive method to detect DNA methylation in colon cancer using Methyl-BEAMing technology. The test can identify 59% of colon cancers in blood samples, a significant improvement over existing methods.