Diagenode

Premium RRBS kit V2 x96
RRBS for low DNA amounts and accurate analysis

Catalog Number
Format
Price
C02030037
96 rxns
$3,745.00
Other format

Reduced Representation Bisulfite Sequencing (RRBS) offers a cost-effective, focused solution to perform genome-scale DNA methylation analysis at the single nucleotide level in any vertebrate species. The fundamental idea of RRBS is to get a “reduced representation” of the genome. By cutting the genome using the restriction MspI enzyme (CCGG target sites) followed by size selection, the DNA sample is enriched with biologically relevant CpG-rich regions (including promoters and CpG islands)  in which DNA methylation marks are typically found. 

With Diagenode’s Premium RRBS Kit V2 perform cost-effective and reliable genome-scale DNA methylation analysis. Detect around 4 million CpGs (with coverage > 10) in human samples and identify methylation patterns in CpG rich regions including promoters and CpG islands.

Secure high-quality NGS data for DNA methylation analysis at single base resolution and enjoy our specific and upgraded features:

  • Work with the lowest DNA amounts from 25 -100ng gDNA
  • Process up to 96 sample in parallel while saving handling-time and cost per sample with early sample pooling strategy
  • Utilize our Software for Intelligent Pooling (SIP) for better pooling strategies
  • Get optimal results from your sequencer with Unique Dual Indexing (UDI)
  • Identify and remove PCR duplicates from your data with Unique Molecular Identifiers (UMIs)

The Premium RRBS kit V2 includes all reagents necessary for the library preparation. Specific adapters were designed and validated to fit the technology and are available separately as described below.

For RRBS V2 with UDI and UMI library construction:

  • Software for Intelligent Pooling (SIP)

    Diagenode's new online intelligent pooling aid (RRBS SIP) provides the optimal pool design for RRBS to meet your specific sample and analysis needs:

    • Time-saving:  avoid complex caculations
    • Highest pooling efficiency based on qPCR quantification - elevate your pooling effectiveness
    • Powerful: incorporates advanced aspects such as number of samples per pool required and the separation between projects
    • Accurate: identifies outliers

    Get access to Diagenode's RRBS Software for Intelligent Pooling (SIP)

    Get your RRBS template file - Here

  • Characteristics

    Sequencing quality

    DNA methylation

    Figure 1. Excellent sequencing quality. RRBS libraries were prepared from different starting amounts of human gDNA using Diagenode’s Premium RRBS V2 kit and sequenced in paired-end 50 bp on Illumina NovaSeq instrument generating 30-40 million read pairs per sample. Sequencing statistics reveal that all samples performed well with mean Phred scores above 30 along the entire reads 1 (A) and 2 (B) (data shown for 50 ng gDNA input after trimming).



    Accurate Coverage of CpGs

    Reduced Representation Bisulfite Sequencing

    Table 1. Examples of Premium RRBS V2 sequencing data. UMI data processing enables accurate estimation of CpG counts.



    Focus on CpG-rich regions

    single nucleotide resolution

    Figure 2. Coverage of CpGs and genomic regions by Premium RRBS V2Diagenode’s Premium RRBS V2 allows a wide interrogation of CpGs (with a sequencing depth >10) of the human genome with a focus on CpG rich regions, especially CpG islands (data shown for 50 ng gDNA input).



    Compatible with all vertebrates

    CpG-dense regions

    Table 2. The kit RRBS v2 is compatible with all vertebrates. The Table 2 shows some examples of results obtained for different species.



    Superior performance

    • Lower duplicate rate
    • More CpGs detected
    • Higher % of uniquely aligned reads containing CpGs
    • Higher genome coverage (3,3%)

    RRBS Kit V2 x96

    Table 3. RRBS was performed using Diagenode RRBS v2 kit on HeLa cells and human blood samples (total 10 samples) as well as using competitor kit on HeLa cells, human blood and brain samples (total 10 samples). The Table 3 shows sequencing parameters for 10 samples processed with each kit.

    Reduced Representation Bisulfite Sequencing

    Figure 3. Comparison of CpG coverage between competing technologies.

  • How it works?
    Premium RRBS kit

    By cutting the genome using the restriction enzyme MspI (CCGG target sites) followed by size selection, DNA is enriched to represent CpG-rich genomic regions (including CpG islands, CpG island shores, enhancers, and other gene-regulatory elements), which are particularly relevant for epigenetic regulation. Similar to exome-sequencing for mutation discovery, the RRBS protocol enriches for some of the most interesting target regions and thereby achieves a reduction in sequencing cost of a factor of 10-20 compared to whole genome bisulfite sequencing.

    NATURE METHODS

    Premium RRBS technology: cost-effective DNA methylation mapping with superior coverage

    Christoph Bock, Sharon SquazzoMiklos LaczikPaul DatlingerAnne-Clémence Veillard

    Nature Methods 13 (2016)

    Published online

    CHECK OUT THE NATURE METHODS PAPER

  • Examples of data analysis 

    Comparative analysis using DNA methylation data from RRBS V2:

    DNA methylation data from RRBS V2

    Figure 1. Example of cluster dendrogram
    Samples: WT – Wild type; Single KO – Single knock-out; Double KO – Double knock-out

    After performing alignment to the reference genome, the methylation calling step provides the methylation percentages for every detected CpG. This methylation rate profile, available now for each sample, can be used to visually explore sample distance by hierarchical clustering. The main branches in this type of dendograms show how the clusters are distinct from each other, and how the objects within each cluster are broadly similar to each other.

    DNA methylation data from Premium RRBS kit V2

    Figure 2. Example of results: Clustering heatmap of significant DMRs (left) and Volcano plot of DMR (right)
    Samples: WT – Wild type; Single KO – Single knock-out; Double KO – Double knock-out

    If the groups of interest contain two or more replicates, a differential methylation analysis can be performed. This type of analysis will identify individual CpGs or regions in the genome that are hyper or hypomethylated in the study group with respect to the control group. A heatmap (left) can be used to visualize the overall distribution of differential methylation between the groups. A volcano plot (right) will show more precisely, the mehtylation difference (x axis) and level of significance of that difference (y axis) allowing the researcher to identify CpGs or regions with large and statistically signifcant differences.

    CpG-dense regions

    Figure 3. Example of results: Percentage of hypo and hypermethylated regions in the samples per chromosome

    Horizontal bar plots show the number of hyper and hypomethylated events per chromosome, as a percentage of the sites with 10X coverage and a 25% difference of methylation status.

    QC of the samples

    single nucleotide resolution

    Figure 4. Example of samples QC: Per base sequence content

    A sequencing quality control software such as FastQC will show the per base sequence content of the sequenced reads. With Diagenode’s RRBS Premium kit, read 2 should show a specific profile for the first three bases that correspond to the MspI restrictive site CGG. The first base being a cytosine followed by a guanine can be either methylated or not; 5mC will remain as C after bisulfite conversion whereas unmethylated C will be converted to T after PCR amplification. The first base in the FastQC per base content plot will therefore show a percentage of reads that vary at that position. In this example, 70% of the reads are methylated at position 1 (C) and 30% are unmethylated. Positions 2 and 3 should show 100% G content.

    DNA methylation

    Figure 5. Example of samples QC: Histogram of % CpG methylation

    Another quality control step consists in looking at the frequency of methylation percentages for all CpGs detected. This step can only be performed after alignment and methylation call. The histogram shows a bimodal distribution, where most of the cytosines are either fully methylated or unmethylated. Some cytosines have intermediate methylation levels. A bump in the middle of the plot or a non-bimodal distribution would suggest an inefficiency of the bisulfite treatment. With Diagenode’s RRBS Premium kit, the exact conversion rate can be calculated thanks to the spike-in control sequences that are included in the kit.

  •  Documents
    Diagenode Premium RRBS technology: Cost-effective DNA methylation mapping with superior CpG resolution and coverage APPLICATION NOTE
    DNA methylation is an important epigenetic mark with broad relevance in development and disease. ...
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    Template SIP RRBS EXCEL FILE
    Template file for RRBS SIP (Software for Intelligent Pooling)
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    Premium RRBS kit v2 manual MANUAL
    Manual Premium RRBS kit V2
    Download
    Sequence of the methylated spike-in control in FASTA format – Premium RRBS kit v2
    This document and files are to process the sequencing data from the spike-in controls included in...
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    Sequence of the unmethylated spike-in control in FASTA format – Premium RRBS kit v2
    This document and files are to process the sequencing data from the spike-in controls included in...
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    Positions of the unmethylated cytosines in the sequence of the methylated control in BED format – Premium RRBS kit v2
    This document and files are to process the sequencing data from the spike-in controls included in...
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    Premium RRBS kit V2 - Spike-in controls analysis to estimate bisulfite conversion efficiency MANUAL
    This document describes how to process demultiplexed RRBS V2 sequencing data to extract the infor...
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  •  Safety sheets
    Premium RRBS kit V2 SDS GB en Download
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  •  Publications

    How to properly cite this product in your work

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    RRBS for low DNA amounts and accurate analysis (Diagenode Cat# C02030037)
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    Multi-omics characterization of chronic social defeat stress recall-activated engram nuclei in Arc-GFP mice
    Monika Chanu Chongtham et al.
    Susceptibility to chronic social stressors often results in the development of mental health disorders including major depressive and anxiety disorders. In contrast, some individuals remain resilient even after repeated stress exposure. Understanding the molecular drivers behind these divergent phenotypic outcomes i...

    Pesticide-induced transgenerational alterations of genome-wide DNA methylation patterns in the pancreas of Xenopus tropicalis correlate with metabolic phenotypes
    Roza M. et al.
    The unsustainable use of manmade chemicals poses significant threats to biodiversity and human health. Emerging evidence highlights the potential of certain chemicals to cause transgenerational impacts on metabolic health. Here, we investigate male transmitted epigenetic transgenerational effects of the anti-androge...

    Triphenyl Phosphate Alters Methyltransferase Expression and Induces Genome-Wide Aberrant DNA Methylation in Zebrafish Larvae
    Negi C.K. et al.
    Emerging environmental contaminants, organophosphate flame retardants (OPFRs), pose significant threats to ecosystems and human health. Despite numerous studies reporting the toxic effects of OPFRs, research on their epigenetic alterations remains limited. In this study, we investigated the effects of exposure to 2-...

    Differential DNA methylation in iPSC-derived dopaminergic neurons: a step forward on the role of SNORD116 microdeletion in the pathophysiology of addictive behavior in Prader-Willi syndrome
    Salles J. et al.
    Introduction A microdeletion including the SNORD116 gene (SNORD116 MD) has been shown to drive the Prader-Willi syndrome (PWS) features. PWS is a neurodevelopmental disorder clinically characterized by endocrine impairment, intellectual disability and psychiatric symptoms such as a lack of emotional ...

    Long-term effects of myo-inositol on traumatic brain injury: Epigenomic and transcriptomic studies
    Oganezovi N. et al.
    Background and purpose Traumatic brain injury (TBI) and its consequences remain great challenges for neurology. Consequences of TBI are associated with various alterations in the brain but little is known about long-term changes of epigenetic DNA methylation patterns. Moreover, nothing is known about potential trea...

    DNA methylome, R-loop and clinical exome profiling of patients with sporadic amyotrophic lateral sclerosis.
    Feró, O. et al.
    Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disorder characterized by the death of motor neurons, the aetiology of which is essentially unknown. Here, we present an integrative epigenomic study in blood samples from seven clinically characterised sporadic ALS patients to elucidate molecular fact...

    Gestational Caloric Restriction Alters Adipose Tissue Methylome and Offspring’s Metabolic Profile in a Swine Model
    Mas-Pares B. et al.
    Limited nutrient supply to the fetus results in physiologic and metabolic adaptations that have unfavorable consequences in the offspring. In a swine animal model, we aimed to study the effects of gestational caloric restriction and early postnatal metformin administration on offspring’s adipose tissue epigene...

    Diagnostic Algorithm to Subclassify Atypical Spitzoid Tumors in Low and High Risk According to Their Methylation Status
    Gonzales-Munoz J.F. et al.
    Current diagnostic algorithms are insufficient for the optimal clinical and therapeutic management of cutaneous spitzoid tumors, particularly atypical spitzoid tumors (AST). Therefore, it is crucial to identify new markers that allow for reliable and reproducible diagnostic assessment and can also be used as a predi...

    Knockout of TRDMT1 methyltransferase affects DNA methylome inglioblastoma cells.
    Zabek T. et al.
    Purpose: We have previously shown that TRDMT1 methyltransferase is a regulator of chemotherapy-associated responses in glioblastoma cells. Despite the fact that glioblastoma, a common and malignant brain tumor, is widely characterized in terms of genetic and epigenetic markers, there are no data on TRDMT1-relat...

    Sperm DNA methylation is predominantly stable in mice offspring bornafter transplantation of long-term cultured spermatogonial stem cells.
    Serrano J. B.et al.
    BACKGROUND: Spermatogonial stem cell transplantation (SSCT) is proposed as a fertility therapy for childhood cancer survivors. SSCT starts with cryopreserving a testicular biopsy prior to gonadotoxic treatments such as cancer treatments. When the childhood cancer survivor reaches adulthood and desires biological chi...

    DNA methylation changes from primary cultures through senescence-bypassin Syrian hamster fetal cells initially exposed to benzo[a]pyrene.
    Desaulniers D. et al.
    Current chemical testing strategies are limited in their ability to detect non-genotoxic carcinogens (NGTxC). Epigenetic anomalies develop during carcinogenesis regardless of whether the molecular initiating event is associated with genotoxic (GTxC) or NGTxC events; therefore, epigenetic markers may be harnessed to ...

    Myelodysplastic Syndrome associated TET2 mutations affect NK cellfunction and genome methylation.
    Boy M. et al.
    Myelodysplastic syndromes (MDS) are clonal hematopoietic disorders, representing high risk of progression to acute myeloid leukaemia, and frequently associated to somatic mutations, notably in the epigenetic regulator TET2. Natural Killer (NK) cells play a role in the anti-leukemic immune response via their cytolyti...

    Epigenetics and stroke: role of DNA methylation and effect of aging onblood-brain barrier recovery.
    Phillips C. et al.
    Incomplete recovery of blood-brain barrier (BBB) function contributes to stroke outcomes. How the BBB recovers after stroke remains largely unknown. Emerging evidence suggests that epigenetic factors play a significant role in regulating post-stroke BBB recovery. This study aimed to evaluate the epigenetic and trans...

    Development of DNA methylation-based epigenetic age predictors inloblolly pine (Pinus taeda).
    Gardner S. T. et al.
    Biological ageing is connected to life history variation across ecological scales and informs a basic understanding of age-related declines in organismal function. Altered DNA methylation dynamics are a conserved aspect of biological ageing and have recently been modelled to predict chronological age among vertebrat...

    Molecular toxicity study on glyphosate, Roundup MON 52276 and alow-dose pesticide mixture administered to adult Female rats for 90 days
    Mesnage Robin and Antoniou Michael N.
    We describe a comprehensive repository describing a collection of data from a range of studies investigating the molecular mechanisms of toxicity of glyphosate, the glyphosate-based herbicide commercial formulation Roundup, and a mixture of glyphosate and 5 other most frequently used pesticides (azoxystrobin, boscal...

    Differential methylation patterns in lean and obese non-alcoholicsteatohepatitis-associated hepatocellular carcinoma.
    Hymel Emma et al.
    BACKGROUND: Nonalcoholic fatty liver disease affects about 24\% of the world's population and may progress to nonalcoholic steatohepatitis (NASH), cirrhosis, and hepatocellular carcinoma (HCC). While more common in those that are obese, NASH-HCC can develop in lean individuals. The mechanisms by which HCC develops a...

    Altered DNA methylation in estrogen-responsive repetitive sequences ofspermatozoa of infertile men with shortened anogenital distance.
    Stenz L. et al.
    BACKGROUND: It has been suggested that antenatal exposure to environmental endocrine disruptors is responsible for adverse trends in male reproductive health, including male infertility, impaired semen quality, cryptorchidism and testicular cancer, a condition known as testicular dysgenesis syndrome. Anogenital dist...

    Epigenetic Alterations of Repeated Relapses in Patient-matchedChildhood Ependymomas.
    Zhao Sibo et al.
    Recurrence is frequent in pediatric ependymoma (EPN). Our longitudinal integrated analysis of 30 patient-matched repeated relapses (3.67 ± 1.76 times) over 13 years (5.8 ± 3.8) reveals stable molecular subtypes (RELA and PFA) and convergent DNA methylation reprogramming duri...

    Epigenetic Suppression of the IL-7 Pathway in ProgressiveGlioblastoma.
    Tompa M. et al.
    BACKGROUND: Immune evasion in glioblastoma (GBM) shields cancer cells from cytotoxic immune response. METHODS: We investigated CpG methylation in promoters, genes, and pathways in 22 pairs of formalin-fixed paraffin-embedded sequential (FFPE) GBM using restricted resolution bisulfite sequencing (RRBS) and bioinforma...

    DNA methylation may affect beef tenderness through signal transduction inBos indicus.
    de Souza M. M. et al.
    BACKGROUND: Beef tenderness is a complex trait of economic importance for the beef industry. Understanding the epigenetic mechanisms underlying this trait may help improve the accuracy of breeding programs. However, little is known about epigenetic effects on Bos taurus muscle and their implications in tenderness, a...

    Folic Acid Treatment Directly Influences the Genetic andEpigenetic Regulation along with the Associated CellularMaintenance Processes of HT-29 and SW480 Colorectal CancerCell Lines.
    Zsigrai S. et al.
    Folic acid (FA) is a synthetic form of vitamin B9, generally used as a nutritional supplement and an adjunctive medication in cancer therapy. FA is involved in genetic and epigenetic regulation; therefore, it has a dual modulatory role in established neoplasms. We aimed to investigate the effect of short-term (72 h)...

    Complex regulatory role of DNA methylation in caste- and age-specificexpression of a termite
    Harrison Mark C. et al.
    The reproductive castes of eusocial insects are often characterised by extreme lifespans and reproductive output, indicating an absence of the fecundity/longevity trade-off. The role of DNA methylation in the regulation of caste- and age-specific gene expression in eusocial insects is controversial. While some studi...

    When left does not seem right: epigenetic and bioelectric differencesbetween left- and right-sided breast cancer.
    Sofía, Masuelli and Sebastián, Real and Emanuel, Campoy andBranham, María Teresita and Marzese, Diego Matías andMatthew, Salomon and De Blas, Gerardo and Rodolfo, Arias andMichael, Levin and María, Roqué
    BACKGROUND: During embryogenesis lateral symmetry is broken, giving rise to Left/Right (L/R) breast tissues with distinct identity. L/R-sided breast tumors exhibit consistently-biased incidence, gene expression, and DNA methylation. We postulate that a differential L/R tumor-microenvironment crosstalk generates diff...

    Comparative Toxicogenomics of Glyphosate and Roundup Herbicidesby Mammalian Stem Cell-Based Genotoxicity Assays andMolecular Profiling in Sprague-Dawley Rats.
    Mesnage R. et al.
    Whether glyphosate-based herbicides (GBHs) are more potent than glyphosate alone at activating cellular mechanisms, which drive carcinogenesis remain controversial. As GBHs are more cytotoxic than glyphosate, we reasoned they may also be more capable of activating carcinogenic pathways. We tested this hypothesis by ...

    Glucose-6-phosphate dehydrogenase and MEG3 controls hypoxia-inducedexpression of serum response factor (SRF) and SRF-dependent genes inpulmonary smooth muscle cell.
    Kitagawa A. et al.
    Although hypoxia induces aberrant gene expression and dedifferentiation of smooth muscle cells (SMCs), mechanisms that alter dedifferentiation gene expression by hypoxia remain unclear. Therefore, we aimed to gain insight into the hypoxia-controlled gene expression in SMCs. We conducted studies using SMCs cultured i...

    The ETS transcription factor ERF controls the exit from the naïve pluripotent state in a MAPK-dependent manner
    Maria Vega-Sendino et. al.
    The naïve epiblast transitions to a pluripotent primed state during embryo implantation. Despite the relevance of the FGF pathway during this period, little is known about the downstream effectors regulating this signaling. Here, we examined the molecular mechanisms coordinating the naïve to primed transit...

    Adaptive Convergence of Methylomes Reveals Epigenetic Driversand Boosters of Repeated Relapses in Patient-matched ChildhoodEpendymomas and Identifies Targets for Anti-RecurrenceTherapies
    Zhao S. et al.
    Ependymoma (EPN) is the third most common brain tumor in children and frequently recurs. Here, we report an integrated longitudinal analysis of epigenetic, genetic and tumorigenic changes in 30 patient-matched repeated relapses obtained from 10 pediatric patients to understand the mechanism of recurrences. Genome-wi...

    Genome-Wide Epigenomic Analyses in Patients With Nociceptive and Neuropathic Chronic Pain Subtypes Reveals Alterations in Methylation of Genes Involved in the Neuro-Musculoskeletal System
    Stenz et al
    Nociceptive pain involves the activation of nociceptors without damage to the nervous system, whereas neuropathic pain is related to an alteration in the central or peripheral nervous system. Chronic pain itself and the transition from acute to chronic pain may be epigenetically controlled. In this cross-sectional s...

    Genome-wide epigenomic analyses in patients with nociceptive andneuropathic chronic pain subtypes reveals alterations in methylation ofgenes involved in the neuro-musculoskeletal system.
    Stenz Ludwig et al.
    Nociceptive pain involves the activation of nociceptors without damage to the nervous system, whereas neuropathic pain is related to an alteration in the central or peripheral nervous system. Chronic pain itself and the transition from acute to chronic pain may be epigenetically controlled. In this cross-sectional s...

    Biobehavioral organization shapes the immune epigenome in infant rhesusMacaques (Macaca mulatta).
    Baxter A. et al.
    How individuals respond to and cope with stress is linked with their health and well-being. It is presumed that early stress responsiveness helps shape the health of the developing organism, but the relationship between stress responsiveness and early immune function during development is not well-known. We hypothes...

    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...

    Environmental enrichment preserves a young DNA methylation landscape inthe aged mouse hippocampus
    Zocher S. et al.
    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 ...

    Pathophysiological adaptations of resistance arteries in rat offspringexposed in utero to maternal obesity is associated with sex-specificepigenetic alterations.
    Payen Cyrielle et al.
    BACKGROUND/OBJECTIVES: Maternal obesity impacts vascular functions linked to metabolic disorders in offspring, leading to cardiovascular diseases during adulthood. Even if the relation between prenatal conditioning of cardiovascular diseases by maternal obesity and vascular function begins to be documented, little i...

    Multi-omics phenotyping of the gut-liver axis reveals metabolicperturbations from a low-dose pesticide mixture in rats.
    Mesnage, Robin et al.
    Health effects of pesticides are not always accurately detected using the current battery of regulatory toxicity tests. We compared standard histopathology and serum biochemistry measures and multi-omics analyses in a subchronic toxicity test of a mixture of six pesticides frequently detected in foodstuffs (azoxystr...

    Muscle allele-specific expression QTLs may affect meat quality traitsin Bos indicus.
    Bruscadin J.J. et al.
    Single nucleotide polymorphisms (SNPs) located in transcript sequences showing allele-specific expression (ASE SNPs) were previously identified in the Longissimus thoracis muscle of a Nelore (Bos indicus) population consisting of 190 steers. Given that the allele-specific expression pattern may result from cis-regul...

    The aging DNA methylome reveals environment-by-aging interactions in amodel teleost
    Bertucci, E. M. et al.
    The rate at which individuals age underlies variation in life history and attendant health and disease trajectories. Age specific patterning of the DNA methylome (“epigenetic aging”) is strongly correlated with chronological age in humans and can be modeled to produce epigenetic age predictors. However, ...

    The insecticide permethrin induces transgenerational behavioral changeslinked to transcriptomic and epigenetic alterations in zebrafish (Daniorerio).
    Blanc, Mélanie et al.
    The pyrethroid insecticide permethrin is widely used for agricultural and domestic purposes. Previous data indicated that it acts as a developmental neurotoxicant and can induce transgenerational effects in non-target organisms. However, associated underlying mechanisms remain unclear. The aim of this study was to i...

    Perturbed DNA methylation by sustained overexpression of Gadd45b induces chromatin disorganization, DNA strand breaks and dopaminergic neurondeath in mice
    Ravel-Godreuil, C. et al.
    Heterochromatin disorganization is a key hallmark of aging and DNA methylation state is currently the main molecular predictor of chronological age. The most frequent neurodegenerative diseases like Parkinson disease and Alzheimer’s disease are age-related but how the aging process and chromatin alterations ar...

    The Identification of a Novel Fucosidosis-Associated Mutation: A Case of a5-Year-Old Polish Girl with Two Additional Rare Chromosomal Aberrations andAffected DNA Methylation Patterns.
    Domin A. et al.
    Fucosidosis is a rare neurodegenerative autosomal recessive disorder, which manifests as progressive neurological and psychomotor deterioration, growth retardation, skin and skeletal abnormalities, intellectual disability and coarsening of facial features. It is caused by biallelic mutations in encoding the α-...

    Developmental cannabidiol exposure increases anxiety and modifiesgenome-wide brain DNA methylation in adult female mice.
    Wanner N. M. et al.
    BACKGROUND: Use of cannabidiol (CBD), the primary non-psychoactive compound found in cannabis, has recently risen dramatically, while relatively little is known about the underlying molecular mechanisms of its effects. Previous work indicates that direct CBD exposure strongly impacts the brain, with anxiolytic, anti...

    Hepatic transcriptome and DNA methylation patterns following perinataland chronic BPS exposure in male mice.
    Brulport A. et al.
    BACKGROUND: Bisphenol S (BPS) is a common bisphenol A (BPA) substitute, since BPA is virtually banned worldwide. However, BPS and BPA have both endocrine disrupting properties. Their effects appear mostly in adulthood following perinatal exposures. The objective of the present study was to investigate the impact of ...

    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...

    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...

    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 ...

    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.
    Summary 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...

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