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DNA Methylation and SNPs Interact to Shape Neurodevelopment and Schizophrenia Risk

December 4, 2015

While epigenetic marks drive traits on their own, their complex influence on phenotype can also be caught in an intimate tango with underlying sequence. One way to characterize this association is by studying DNA methylation quantitative trait loci (mQTLs), which are SNPs in the genome that influence DNA methylation. Previously, the Lab of Jonathan Mill […]

Enhancers Shape the Fetal Landscape of Dynamic Developmental DNA Methylation

November 29, 2015

Waddington’s epigenetic landscape is a classic metaphor for the role of epigenomics in development. In it, a cell becomes increasingly committed to a certain developmental trajectory as it acquires marks that poise it for later development. Massive efforts have been undertaken to chart this unexplored landscape and discover the buried treasures of development. Much has […]

CRISPR-Enhanced Enhancer Mapping

November 29, 2015

Enhancers are hugely important regulatory regions of DNA that control gene expression. New techniques are telling us a lot about enhancer structure and function, but the study of enhancers could still use some enhancement. Enhancers are currently defined by what they look like (local DNA methylation, histone modifications, and chromatin availability) or by pulling them […]

Bisulfite FREEway Provides Route to the Lost Oxidized Derivatives of DNA Methylation

November 16, 2015

When navigating complex environments, it’s always handy to have a good map. Although the human epigenome project has been pretty good at mapping the complexities of 5-methyl cytosine (5mC), and more recently 5-hydroxymethylation (5hmC), other oxidative derivatives of 5hmC, 5-formylcytosine (5fC) and 5-carboxylcytosine (5caC), have remained relatively uncharted terrain. Researchers from North Carolina and Active Motif […]

m6A Modification Protects Against Heat Shock

November 13, 2015

When exposed to high temperatures, cells behave much as we would on a hot summer’s day. Cell division, and most energy-consuming activities, come to a standstill (a bit like the human equivalent of lying perfectly still on a sunbed with a mojito in hand). Yet, despite the general repression of translation, genes encoding protective heat […]

Different Pluripotent Stem Cells Remain Functionally Similar

November 12, 2015

Coke vs. Pepsi, Domino’s vs. Pizza Hut, Bud vs. Miller. Could you tell the difference them in a taste test, given that they are made in a slightly different way with slightly different starting materials? And in the end, if each option does the job they were designed to do (filling bellies!), will any slight […]

New Cas Effectors Inject Fresh Talent Onto CRISPR Stage

November 12, 2015

Poor Cas9. If CRISPR were a new music trend, Cas9 would the band that was playing CRISPR long before it was cool, rode the CRISPR wave to stardom, alienated its fans with copyright battles, and is already under threat from the new kids. Less metaphorically, Cas9 is an enzyme that uses RNA spacers (crRNAs) transcribed […]

Linking RNA Modifications and Stem Cell Pluripotency

November 12, 2015

Recent studies reported here at Epigenie have identified N6-methyladenosine (m6A) as a highly dynamic RNA modification that influences all aspects of RNA biology. Furthermore, an interesting study in mouse and human embryonic stem cells (ESCs) has indicated a role for N6-methyladenosine in the switch between ESC pluripotency and differentiation. Cool stuff indeed, but whate regulates N6-methyladenosine deposition […]

More Insights into Sperm Epigenomics: Histone Methylation Takes It Solo Transgenerationally

November 12, 2015

While CpG methylation has received the seminal fame of transgenerational epigenetic inheritance, it seems that other players in the epigenome are just as capable. Sperm miRNAs have taken the solo spotlight in highlighting the mechanisms and distinction between transgenerational inheritance and intergenerational effect, but now histone methylation steps up to the plate leading us to […]

Astrocyte microRNAs Welcome Metastatic Cancer Cells to the Brain

November 12, 2015

If asked what to bring on a fishing trip in winter, your answer probably wouldn’t be a bathing suit and sunblock. Likewise, when cancer cells metastasize, they need the right equipment to reside in unfamiliar organs; in other words, they must adapt their expression programs to accommodate their new microenvironment. How they do this is […]