Finding Epimutations in the Genome HaystackApril 30, 2015Trying to identify DNA methylation mutations with current technologies usually requires a lot of cells, making it a lot like hunting for a needle in a haystack. Getting down to looking at single cells is becoming possible, but requires you to look at the whole genome, making the hunt for epimutations difficult. Recent work from Silvia […]
Human Preimplantation Embryos Go RetroviralApril 24, 2015Our genomes are littered with tales of our evolutionary past, including infections from retroviruses that have left their mark in the vast expanses of the human genome. While most of the endogenous retroviruses (ERVs) have lost their protein coding potential, a class of human specific ERVs (HERVs) still possess intact open reading frames. Inspired by […]
At Risk of Autistic Offspring? Sperm DNA Methylation May Hold the AnswerApril 23, 2015Finding the origin of complex disease is no easy task but now it seems a seminal breakthrough has occurred. Andrew Feinberg and team at the John Hopkins University Center for Epigenetics have found a DNA methylation pattern in the sperm of fathers with an increased risk of fathering autistic children that is also present in brains […]
The Differentiation Race: Not all Cells Move at the Same SpeedApril 21, 2015Christoph Bock discusses his recent paper ‘Single-Cell DNA Methylome Sequencing and Bioinformatic Inference of Epigenomic Cell-State Dynamics‘ published in Cell Reports. Epigenetic Regulation of Cell States In this first section Christoph tells us why he is interested in studying the epigenetic regulation of cell states and how his new method helps to look at the epigenetics of […]
Bees Model Their Potential for Epigenomic ResearchApril 13, 2015With spring in the air, the honeybees are already out and buzzing about and now an international team from Australia and Poland have created a different type of buzz with their research into 5hmC and its effect of bee’s behaviour. The importance of epigenetics in bees has already been suggested with the finding that honeybees use miRNAs to enable their […]
DNMT1 Loss is Lethal in Human But Not Mouse Embryonic Stem CellsApril 2, 2015Mouse models have been great to science, they’ve given insight into humans in ways simply not possible in humans. However, while there are striking similarities in the epigenetics of mice and men, there are also undoubtedly some fundamental differences. Now, a team from the Broad Institute of MIT and Harvard consisting of the labs of Alexander Meissner, J. Keith Joung, and John […]
Sex On the Brain: DNA Methylation Defines GenderMarch 31, 2015A talented team from the University of Maryland has added some strong molecular evidence that DNA methylation is an active player in setting the sexual behaviors you’re born with. Sexuality has always been a complex topic. Typically it refers to presence or absence of certain sex organs. However, the concept of gender is more complex, as […]
The Long Route of MeCP2 in TranscriptionMarch 24, 2015A number of teams have already spent time in trying to uncover the path that leads from MeCP2 disruption to Rett syndrome, a severe neurodevelopmental disorder in the autism spectrum. Adding detail to MeCP2’s repressive function, a team led by Michael Greenberg gathered data from MeCP2 mouse mutants and patient samples, finding an unexpected clue in long-gene […]
5hmC: a Helping Hand in Drug AddictionMarch 23, 2015While there’s no doubting that one month of continuous cocaine exposure is going to have an effect on the brain, it seems that some of the molecular culprits behind the response and long-term effects are 5hmC and the TET protein family. An international research team studying addiction via cocaine show that repeat exposure downregulates the TET machinery in the brain’s reward centre, the nucleus […]
Our Favorite Findings from the Epigenomic RoadmapMarch 10, 2015For those of you with a keen eye, you’ll have already noticed the mass of Epigenomic Roadmap Studies published in Nature in February. In order to help you navigate this mountain of results we’ve highlighted some of our favorite findings from this collection of papers. Here’s our Top Five Findings: Enhancer-like Elements Take Center Stage in […]