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Environmental enrichment preserves a young DNA methylation landscape in the aged mouse hippocampus
Sara Zocher, Rupert W. Overall, Mathias Lesche, Andreas Dahl & Gerd Kempermann
The decline of brain function during aging is associated with epigenetic changes, including DNA methylation. Lifestyle interventions can improve brain function during aging, but their influence on age-related epigenetic changes is unknown. Using genome-wide DNA methylation sequencing, we here show that experiencing ...
Riluzole Administration to Rats with Levodopa-Induced Dyskinesia Leads to Loss of DNA Methylation in Neuronal Genes
Luca Pagliaroli, Abel Fothi, Ester Nespoli, Istvan Liko, Borbala Veto, Piroska Devay, Flora Szeri, Bastian Hengerer, Csaba Barta, Tamas Aranyi
Dyskinesias are characterized by abnormal repetitive involuntary movements due to dysfunctional neuronal activity. Although levodopa-induced dyskinesia, characterized by tic-like abnormal involuntary movements, has no clinical treatment for Parkinson’s disease patients, animal studies indicate that Riluzole, w...
Integrative Analysis of Glucometabolic Traits, Adipose Tissue DNA Methylation and Gene Expression Identifies Epigenetic Regulatory Mechanisms of Insulin Resistance and Obesity in African Americans
Neeraj K. Sharma, Mary E. Comeau, Dennis Montoya, Matteo Pellegrini, Timothy D. Howard, Carl D. Langefeld, Swapan K. Das
Decline in insulin sensitivity due to dysfunction of adipose tissue (AT) is one of the earliest pathogenic events in Type 2 Diabetes. We hypothesize that differential DNA methylation (DNAm) controls insulin sensitivity and obesity by modulating transcript expression in AT. Integrating AT DNAm profiles with transcrip...
DNA CpG methylation in sequential glioblastoma specimens.
Kraboth, Z and Galik, B and Tompa, M and Kajtar, B and Urban, P andGyenesei, A and Miseta, A and Kalman, B
PURPOSE: Glioblastoma is the most aggressive form of brain tumors. A better understanding of the molecular mechanisms leading to its evolution is essential for the development of treatments more effective than the available modalities. Here, we aim to identify molecular drivers of glioblastoma development and recurr...
Early Life Exposure to Environmentally Relevant Levels of Endocrine Disruptors Drive Multigenerational and Transgenerational Epigenetic Changes in a Fish Model
Major Kaley M., DeCourten Bethany M., Li Jie, Britton Monica, Settles Matthew L., Mehinto Alvine C., Connon Richard E., Brander Susanne M.
The inland silverside, Menidia beryllina, is a euryhaline fish and a model organism in ecotoxicology. We previously showed that exposure to picomolar (ng/L) levels of endocrine disrupting chemicals (EDCs) can cause a variety of effects in M. beryllina, from changes in gene expression to phenotypic alterations. Here ...
Chronic cannabidiol alters genome-wide DNA methylation in adult mouse hippocampus: epigenetic implications for psychiatric disease.
Wanner NM, Colwell M, Drown C, Faulk C
Cannabidiol (CBD) is the primary non-psychoactive compound found in cannabis (Cannabis sativa) and an increasingly popular dietary supplement as a result of widespread availability of CBD-containing products. CBD is FDA-approved for the treatment of epilepsy and exhibits anxiolytic, antipsychotic, prosocial, and oth...
Dnmt3a and Dnmt3b-Decommissioned Fetal Enhancers are Linked to Kidney Disease
Guan Y, Liu H, Ma Z, Li SY, Park J, Sheng X, Susztak K
BACKGROUND: Cytosine methylation is an epigenetic mark that dictates cell fate and response to stimuli. The timing and establishment of methylation logic during kidney development remains unknown. DNA methyltransferase 3a and 3b are the enzymes capable of establishing methylation. METHODS: We generated mice with gen...
Rheumatoid Arthritis Patients, Both Newly Diagnosed and Methotrexate Treated, Show More DNA Methylation Differences in CD4+ Memory Than in CD4+ Naïve T Cells
Guderud Kari, Sunde Line H., Flåm Siri T., Mæhlen Marthe T., Mjaavatten Maria D., Lillegraven Siri, Aga Anna-Birgitte, Evenrød Ida M., Norli Ellen S., Andreassen Bettina K., Franzenburg Sören, Franke Andre, Haavardsholm Espen A., Rayner Simon, Gervin Kris
Rheumatoid arthritis (RA) is a chronic autoimmune disease that causes pain and swelling of multiple joints in the body. The underlying disease mechanisms are believed to involve a complex interplay between common genetic and environmental factors. The heritability of RA has been estimated to be ~50% for anti-citrull...
Obesogen effect of bisphenol S alters mRNA expression and DNA methylation profiling in male mouse liver
Brulport Axelle, Vaiman Daniel, Chagnon Marie-Christine, Le Corre Ludovic
Environmental pollution is increasingly considered an important factor involved in the obesity incidence. Endocrine disruptors (EDs) are important actors in the concept of DOHaD (Developmental Origins of Health and Disease), where epigenetic mechanisms play crucial roles. Bisphenol A (BPA), a monomer used in the man...
Mitochondrial stress triggers a pro-survival response through epigenetic modifications of nuclear DNA.
Mayorga L, Salassa BN, Marzese DM, Loos MA, Eiroa HD, Lubieniecki F, García Samartino C, Romano PS, Roqué M
Mitochondrial dysfunction represents an important cellular stressor and when intense and persistent cells must unleash an adaptive response to prevent their extinction. Furthermore, mitochondria can induce nuclear transcriptional changes and DNA methylation can modulate cellular responses to stress. We hypothesized ...
Differential DNA methylation of potassium channel KCa3.1 and immune signalling pathways is associated with infant immune responses following BCG vaccination.
Hasso-Agopsowicz M, Scriba TJ, Hanekom WA, Dockrell HM, Smith SG
Bacillus Calmette-Guérin (BCG) is the only licensed vaccine for tuberculosis (TB) and induces highly variable protection against pulmonary disease in different countries. We hypothesised that DNA methylation is one of the molecular mechanisms driving variability in BCG-induced immune responses. DNA methylatio...
In Situ Fixation Redefines Quiescence and Early Activation of Skeletal Muscle Stem Cells
Machado L. et al.
State of the art techniques have been developed to isolate and analyze cells from various tissues, aiming to capture their in vivo state. However, the majority of cell isolation protocols involve lengthy mechanical and enzymatic dissociation steps followed by flow cytometry, exposing cells to stres...
DNMT3B overexpression contributes to aberrant DNA methylation and MYC-driven tumor maintenance in T-ALL and Burkitt’s lymphoma
Poole et al.
Aberrant DNA methylation is a hallmark of cancer. However, our understanding of how tumor cell-specific DNA methylation patterns are established and maintained is limited. Here, we report that in T-cell acute lymphoblastic leukemia (T-ALL) and Burkitt’s lymphoma the MYC oncogene causes overexpression of DNA me...
DNA methylation and alcohol use disorders: Progress and challenges
Zhang H. and Gelernter J.
Background and Objectives
Risk for alcohol use disorders (AUDs) is influenced by gene–environment interactions. Environmental factors can affect gene expression through epigenetic mechanisms such as DNA methylation. This review outlines the findings regarding the association of DNA methylation and AUDs.
Diagenode® Premium RRBS technology: cost-effective DNA methylation mapping with superior coverage
Anne-Clémence Veillard, Paul Datlinger, Miklos Laczik, Sharon Squazzo & Christoph Bock
Reduced representation bisulfite sequencing (RRBS) enables genome-scale DNA methylation analysis in any vertebrate species. The assay benefits from the practical advantages of bisulfite sequencing while avoiding the cost of whole-genome sequencing. The Diagenode Premium RRBS kit makes this technology widely availabl...