Researchers from USC-led study found that different epigenetic clocks capture distinct aspects of cellular aging, while introducing new gene-expression based clocks with stronger predictive power. These tools can better predict age-related disease and mortality by examining DNA methylation patterns and gene expression.
Researchers at Salk Institute create a body-wide single-cell atlas of two major epigenetic systems, revealing that cell-type-specific epigenetic features can affect disease risk. The study identifies over 1.36 million differentially methylated regions and 283,606 differential chromatin loops across the human body's cell types.
A new study published in Aging-US found that plant-based dietary patterns are associated with slower epigenetic aging. The research analyzed data from two large cohorts and found that higher intake of plant foods was linked to decelerated biological aging.
Epigenetic modifiers targeting histone acetylation, methylation, and phosphorylation show significant preclinical promise in CRC. Combination strategies and novel degraders offer pathways to overcome resistance, including PROTACs targeting KDM3A/B that eliminate cancer stem cells via Wnt/β-catenin inhibition.
Researchers found that DNA methylation dynamics play a key role in regulating flowering time and sexual asynchrony in the sweet tea tree. The study identified methylation-dependent regulation of key flowering genes within photoperiod, gibberellin, and trehalose-6-phosphate signaling pathways.
Researchers discovered that SARS-CoV-2 interacts with infected lung cells' genetic material in an unprecedented way, manipulating RNA to shut down the immune system. The virus uses methylation to destabilize RNA structures, weakening interferon signaling and impairing the immune response.
A novel methylation analysis method, called UMBS-seq, achieves both accuracy and gentleness, unlocking more reliable cancer biomarker detection. The method outperforms existing methods for 5-methylcytosine detection with low input DNA, preserving DNA integrity.
The review reveals m⁶A's dynamic role in regulating female reproductive physiology, including oocyte maturation, granulosa cell function, and endometrial receptivity. Dysregulation of m⁶A is linked to pathologies such as endometriosis, PCOS, and recurrent miscarriage.
Researchers at the University of Konstanz are developing new methods to modify natural substances using enzymes, with potential applications in pharmaceuticals. Meanwhile, ecologist Catalina Chaparro-Pedraza is studying how organisms adapt to environmental changes and their impact on ecological resilience.
Research reveals m6A modifications play crucial roles in plant growth, development, and stress responses. These findings have significant implications for improving crop traits such as yield, flowering time, and stress tolerance.
Researchers found that cancer does not typically affect forensic age estimation accuracy, except for very aggressive forms of cancer. In contrast, blood cancers led to large errors, with ages overestimated by up to 50 years.
Researchers have finally pinned down the genomic, epigenomic, and cellular landscape of the enigmatic arrow worm, connecting its unique genetic markup to specialized cell-types. The study reveals an unprecedented rate of gene genesis and duplication, as well as a unique method of chromosomal organization.
Scientists at the University of Leicester discovered that jewel wasps can slow down their biological rate of ageing by undergoing a natural 'time-out' as larvae. This pause in development extends lifespan and decelerates the epigenetic clock, tracking chemical changes in DNA.
Researchers at Hebrew University developed a precise method to estimate chronological age from DNA using deep learning networks analyzing DNA methylation patterns. The method achieves age predictions with a median error of 1.36 years in individuals under 50, unaffected by smoking, BMI, and sex.
This study found that NKAPL downregulation in NSCLC is associated with poor prognosis and hypermethylation of its promoter. High NKAPL expression inhibits NSCLC cell proliferation, migration, and invasion. NKAPL enhances TRIM21 protein stability, leading to suppression of the NF-κB signaling pathway.
A new perspective challenges current epigenetic clocks, which use DNA methylation patterns to estimate biological age, by failing to distinguish between different types of methylation changes. This could lead to inaccurate conclusions and potentially slow down progress in anti-aging research.
CU Cancer Center researchers discovered that H3K36 methylation regulates plasticity and regeneration in intestinal cells. The process, identified as a key 'switch', allows intestinal cells to regenerate after injury. This finding may lead to better treatments for colorectal cancer and other intestinal conditions.
The study found that clouds contain significantly more arsenic on average than rainwater, and biological processes play a key role in the global distribution of arsenic. The researchers also detected various types of arsenic compounds in rainwater samples, including methylated forms formed by bacteria and plants.
Researchers developed a new tool called SigRM to analyze single-cell epitranscriptomics data, enabling the study of RNA modifications in individual cells. This can provide valuable insights into gene regulation and its impact on health and disease, particularly in complex conditions like cancer.
The METTL family is involved in normal cell differentiation, maintaining mitochondrial function, and has implications in malignancies, neurodegenerative disorders, and cardiovascular ailments. Research directions include developing diagnostic and therapeutic markers.
Researchers have identified the first inhibitors of the cancer-related RNA-modifier METTL16, which prevent its interaction with RNA. This breakthrough lays the foundation for novel RNA-targeting therapeutics and better investigation of METTL16's role in disease and health.
A study by Dr Manel Esteller and colleagues identified an epigenetic signature associated with a good clinical response to hypomethylating drugs, enabling early detection of resistant patients. The research found single genes that facilitate the development of biomarkers and rescue strategies for non-responder patients.
Researchers have made significant progress in understanding the enzyme SMYD3's involvement in prostate cancer's progression to a more aggressive stage. The study found that adding methyl groups to the MAP kinase protein is likely SMYD3's role in driving metastasis, and compounds that can inactivate SMYD3 are already available
A team of Chinese researchers has developed a bio-inspired approach to improve the performance of flexible sodium-ion batteries. By methylating the structural polymer in the hydrogel electrolyte, they significantly increase the salt stability, leading to better battery capacity and cycling performance. The modified hydrogel can absorb ...
SourceWiley·JournalAngewandte Chemie International Edition·TypeExperimental study·DateOct 5, 2023
Researchers identified a new post-translational modification of the glycolytic enzyme enolase, specifically at histidine residue His-190. This finding suggests that histidine methylation may play a crucial role in intermolecular hydrogen bonding and enzyme activity.
Researchers have identified a new factor influencing excess body weight in women, related to epigenetic marking of the POMC gene. The study found that women with an increased number of methyl groups attached to the gene are at a 44% higher risk of obesity.
Researchers developed Precious1GPT, a multimodal transformer-based approach for aging clock development and feature importance analysis. The model utilizes methylation and transcriptomic data to predict biological age and identify disease-related genes, providing a pathway for therapeutic drug discovery.
Researchers discovered that methylated cyclodextrin derivatives effectively prevent the crystallization of supersaturated carvedilol and chlorthalidone. The study reveals that these derivatives maintain the supersaturated state by steric hindrance, enabling improved absorption in the body.
Researchers found that centenarians have a lower epigenetic age than expected, suggesting slowed biological aging. The study used four epigenetic clocks based on small CpG sites to reveal these differences.
Researchers find that airborne chemical methyl bromide is a compelling indicator of biological activity on other planets. Its detectability increases around M dwarf stars, making it an attractive target for future missions to search for extraterrestrial life.
A new study introduces a novel epigenetic predictor, PCBrainAge, that captures aging heterogeneity across multiple brain regions. The tool demonstrates stronger associations with AD dementia and pathologic AD compared to existing age predictors.
The study identified a specific methylation signature, TCF7, which predicts the presence of anti-tumor T cells and patient outcomes. The findings suggest that determining immunoepignomic status through tumor-based expression quantitative trait methylation screening could allow for accurate prediction of patient outcomes.
Researchers have imaged an enzyme involved in carbapenem biosynthesis, shedding light on the process of creating a potent side chain that makes these antibiotics effective against antibiotic-resistant bacteria. The discovery could lead to improved antibiotics and new strategies for combating bacterial resistance.
A new study reveals that iboxamycin effectively fights both gram-negative and gram-positive drug-resistant bacteria in mouse models. The researchers discovered the molecular mechanism that allows this drug to overcome resistance, which is important for developing new antibiotics.
A research group at Osaka University has developed a new tool for sequencing various types of RNA base modifications, including microRNA modifications. They successfully detected two types of chemical base modifications simultaneously using a single-molecule quantum sequencer.
A new study found that maternal smoking during pregnancy is associated with changes in placental DNA methylation and poor birth outcomes. The research suggests that these epigenetic changes may affect fetal growth by altering the expression of genes involved in environmental responses, growth, and inflammation.
Researchers analyzed data from five large heart cohort studies to identify epigenetic changes associated with cardiovascular disease. The study found 33 common methylation sites linked to heart disease across diverse populations, providing a potential target for prevention and intervention.
An international study found that the protein PRMT6 ensures transport along axons, and its loss leads to neural impairment. Increasing PRMT6 expression may restore huntingtin function and improve neural health in patients with Huntington's disease.
A new study at Karolinska Institutet has found a crucial link between mitochondrial function and serious diseases, including diabetes, heart disease, and neurodegenerative disorders. The research suggests that modifications to proteins within the mitochondria can affect energy production and may be modulated by diet.
This article reviews the state-of-the-art analytical strategies for studying protein arginine methylation using mass spectrometry. The authors discuss the latest studies on profiling protein-methylation events, implementing biochemical methods, computational analysis tools, and the heavy methyl SILAC strategy.
Researchers at Johns Hopkins and Insilico Medicine discovered novel epigenetically silenced genes in ovarian cancer, including methylation of the GULP1 gene. GULP1 expression is associated with late-stage disease and poor overall survival, suggesting its potential as a biomarker.
A study by NRG Oncology/RTOG 0424 found that MGMT promoter methylation is associated with improved progression-free and overall survival in high-risk, low-grade glioma patients. The analysis suggests that MGMT promoter methylation should be incorporated into future clinical trial designs to risk-stratify LGG patients.
Researchers have identified a DNA-level biomarker, MGMT promoter methylation, as an independent prognostic marker of high-risk, low-grade glioma in patients treated with temozolomide and radiotherapy. This biomarker can predict patient outcomes, with patients having methylated tumors showing improved survival rates.
Researchers at Osaka University found that differences in methylation patterns of specific genes and chromosomes are linked to the development of autoimmune thyroid diseases. This discovery highlights the importance of considering both genetic and epigenetic factors in diagnosing metabolic disorders.
Research in The FASEB Journal reveals a key role for cilia structure in determining susceptibility to neural tube defects. Genetically modified mice studies found that methylation of the Septin2 protein affects neural tube closure, leading to an increased risk of birth defects.
Researchers have identified three additional compounds in chicken livers treated with Roxarsone, a common poultry feed supplement containing arsenic. These methylated compounds are up to 30,000 times more toxic than Rox and may pose significant risks to human health if consumed.
Researchers at Uppsala and Umeå University found that the molecular composition of sediment organic matter controls methylmercury formation. Organic compounds from phytoplankton are linked to high mercury methylation rates, while carbon compounds from the watershed do not have this effect.
Researchers developed molecular probes to detect genes converting mercury into its highly toxic organic form, with a 94% confirmation rate. The technology can help determine the amount of methylmercury in water and sediment, aiding environmental managers and governments in protecting human health.
A recent study by researchers at the University of Georgia found that silencing of the OXT gene may impact social behaviors, including recognizing emotional states of others. Participants with higher methylation levels of the OXT gene showed difficulty in describing facial emotions and had increased anxiety about relationships.
A new study by UC Santa Barbara researchers identified how flooding frequency and duration affect mercury biogeochemistry along a 40-mile stretch of the Yuba/Feather River system. The study found that about 5 percent of the total mercury in this lower section has the potential to become toxic.
Researchers discovered that MeCP2 binds to non-CG methylation patterns in the adult brain, which is unique to maturing and adult nervous systems. This finding explains why Rett syndrome symptoms appear after one to two years of age.
Researchers found that methylation patterns in acute myeloid leukemia patient samples were prognostic for overall survival. A novel biomarker for lysosomal storage disorders was also identified by correlating relative acidic compartment volumes with clinical severity.
The EORTC trial 26951 found that CpG island methylator phenotype status and MGMT promoter methylation are key factors in determining which patients benefit from PCV chemotherapy. The study suggests that other molecularly defined subsets of grade III tumors may also respond to treatment.
Researchers at ORNL have solved the mystery of how bacteria convert mercury into methylmercury, a far more toxic form. The team identified two genes, hgcA and hgcB, responsible for this conversion process, which has significant implications for protecting human health.
Researchers at USC's Keck School of Medicine discovered how estrogen activates genes in breast-cancer cells through a protein called TIP60, which recognizes methylation signals in chromatin. This finding builds upon previous work and has broader implications for gene regulation and potentially global significance.
Researchers at University of Alberta find that inorganic mercury transforms into deadly monomethylmercury in seawater, amplifying toxic effects through the food chain. Microbial life forms are believed to carry out this process, which accounts for 50% of neurotoxin present in polar marine waters.
Researchers found that coastal and open-ocean fish have distinct mercury signatures, ruling out the idea that they pick up methylmercury by eating contaminated coastal fish. Instead, they suggest that mercury is deposited into the open ocean and undergoes methylation in low-oxygen microenvironments.
A study at the University of Texas M. D. Anderson Cancer Center found that oral tissue can be used to monitor molecular events in less accessible lung tissue. The research discovered that cells lining the mouth reflect the same antitumor genes silenced in oral and lung tissue, offering a new approach to detecting lung cancer.
Researchers at the University of Wisconsin-Madison have found that dissolved organic material in water increases the biological risk of mercury and may serve as an environmental source. The study's findings suggest that understanding the factors controlling methylation is critical for developing ecosystem-level management strategies.
The study found that silencing of the PTPRO gene causes a drop in the level of the enzyme, leading to increased cell proliferation and cancer development. Over-producing the PTPRO enzyme slowed the growth of cancer cells and induced programmed cell death.