Drop-by-Drop Cell Fate Control by Transcriptional CondensatesJuly 22, 2018Little-by-little, step-by-step, and drop-by-drop, we are beginning to appreciate the vital importance of intracellular liquid-like droplet formation to fundamental mechanisms such as epigenetic inheritance and heterochromatin domain formation. Liquid-like droplets aid these processes by biological “phase-separation” or the selective concentration of some molecules into a small intracellular area and the exclusion of others. Excitingly, two new […]
Cutting Through the Epigenetic Complexities Linking Aging and TumorigenesisMarch 16, 2018Writing your first grant proposal? Optimizing that tricky Western blot? Programming an old PCR machine? Only a few things are more complex than our current understanding of the epigenetic links between aging and tumorigenesis, but this has not stopped a few valiant labs from doubling down and busting a few paradigms while they are at […]
The Great Unknown of Chromatin Conformation DynamicsAugust 7, 2017Apart from the ever rising and falling measurements of one’s waistline and bank balance, the three-dimensional (3D) chromatin conformation of the mammalian genome is one of the most dynamic and least understood factors in a scientist’s life. Luckily, the development of new high-definition techniques and enhanced computational analyses are helping us to understand how the […]
Genomic Imprinting’s Alternative Choices: H3K27me3 and 5hmCJuly 31, 2017In today’s world, where choices are a plenty, alternative is a fashionable choice. When it comes to genomic imprinting, traditionalists swear by DNA cytosine methylation (5mC); however, sometimes imprinting turns to alternative epigenetic marks. Genomic imprinting is typically driven by 5mC at imprinting control regions (ICRs), where it represses the expression of the marked allele […]
Environmentally Reprogrammed Sperm Epigenetically Transmit Behavior Across GenerationsJuly 11, 2017Life’s full of experiences that often seem like a coin toss. Should you go the gym or feast on some sushi? While the epigenetic mechanisms behind the outcomes of these two events may seem quite different at first, when considering the epigenetics of sperm, it turns out they’re two-sides of the same coin. Intergenerational Effect […]
“Drop” Everything for the New Liquid Model of Heterochromatin Domain Formation!June 30, 2017The field of epigenetics tends to be very “fluid” with new studies and paradigm shifts seemingly the norm! Now two new studies in Nature have described a new liquid model for the formation and function of silent chromatin domains known as heterochromatin. The predominant view of heterochromatin formation and function tells us that repressive epigenetic […]
Reporter of Genomic Methylation Delivers Imprinting and Epigenome Editing InsightsOctober 3, 2016Here at EpiGenie we like to think of ourselves as reporters of genomic methylation, but two new studies from the lab of Rudolf Jaenisch at MIT give us a run for our money and demonstrate the utility of their reporter of genomic methylation (RGM). Using RGM, the talented group brings forth a deeper understanding of […]
Watch out Cas9: Cpf1 Hits the Mark in Human Cells and Creates a Mouse ModelJune 15, 2016In the Wild West of CRISPR genome editing, Cas9 has established itself as a wrangler of animal models that takes out any sequence with an sgRNA bounty on its head. But now there’s a new sheriff in town with marksman aim. CRISPR from Prevotella and Francisella 1 (Cpf1) was brought forth by the pioneering lab […]
The Mixed Messages of Bivalent ChromatinJune 14, 2016Navigating the epigenetic landscape is no easy feat. Clear markings and smooth rides through its canals can quickly give way to a hectic hodgepodge of mixed signals and uncertain routes. A great example is bivalent chromatin, which contains marks of both activation and repression. Characterized by Bernstein et al. in 2006, the most studied bivalent […]
Liquid Biopsies Reveal More than Sequence: The Epigenomics of Circulating Cell-Free DNAMay 6, 2016Every good captain knows that when your ship is in distress, you send out an SOS. Now, two new papers now leave us wondering if that tactic is borrowed from diseased tissues. Many diseases are characterized by cell death that releases circulating cell-free DNA (cfDNA) into the blood stream, which can now be analyzed in […]