dCas9-SunTag-DNMT3A Causes a Total Methylation EclipseSeptember 26, 2017While it’s never a great idea to stare directly into the sun, a DNA methyltransferase (DNMT) eclipse brought to you by the SunTag system may just steal your eyes during its totality. This designer epigenome editing system comes to you from the labs of Margaret A. Goodell and Wei Li at Baylor College of Medicine […]
xQTLs Provide Xtra Epigenetic Treasure for GWAS ProspectorsSeptember 25, 2017On any good pirate map, ‘X’ marks the spot for buried treasure. It turns out the same is true in epigenetics: xQTL analysis marks the spot for buried GWAS associations. Genome-wide association studies (GWAS) have been instrumental in identifying single nucleotide polymorphisms (SNPs) associated with human disease. However, finding the biological relevance of such SNPs […]
Caloric Restriction: The Fountain of (Epigenetic) Youth?September 25, 2017With age comes wisdom, and also a changing methylation landscape. These changes in methylation can predict life expectancy, with a subset referred to as the ‘epigenetic clock’. For those of us looking to add more time, caloric restriction has been shown to increase life expectancy and reduce the incidence of age-related diseases. Despite three decades […]
Phthalates Produce Problematic Sperm DNA Methylation in HumansSeptember 20, 2017While plastic is fantastic, the luxury of our synthetic world comes at a price: plasticizing agents can affect our chances of bringing new life into that world thanks to our environmentally-responsive sperm. Phthalates, which are common plasticizing agents, disrupt the endocrine system and are present in food packaging, personal care products such as shaving cream, […]
DNA Methylation Takes a World Tour of Human DiversitySeptember 20, 2017Once a rock star makes it big, they treat the world to a tour. However, DNA methylation, being both an epigenetic rock star and an unbearable diva, has been more than fashionably late to the party! But fear not! DNA methylation has made a comeback with a hit record of scientific insight into human diversity. […]
Running Around in Circles to Understand N6-methyladenosine (m6A)September 10, 2017While most studies on the N6-methyladenosine (m6A) RNA modification have been on the straight and narrow, the research trajectory taken by the labs of Cosmas C. Giallourakis and Alan C. Mullen will have you running around in circles! More specifically, Chan Zhou and Benoit Molinie (along with their tight circle of friends) sought to discover […]
LINE-1 Retrotransposons Keep Early Embryonic Chromatin in LineSeptember 10, 2017While cocktails and embryonic development usually don’t mix well, a cocktail of three transcription-activator-like effectors (TALEs) has just shaken up our understanding of the role LINE-1 retrotransposons during early embryonic development. LINE-1 activation had been considered a consequence of developmental processes, but now a talented team from the lab of Maria-Elena Torres-Padilla at the German […]
Targeted and Reversible Chromatin Conformations Crafted by CLOuD9August 27, 2017Imagine a world where you could create chromatin loops where and when you want. You’d feel like you’re on cloud nine. Well, get your head out of the clouds, because you’ve got to thank the lab of Kevin Wang at Stanford for targeted and reversible chromatin loop reorganization using deactivated Cas9 (CLOuD9). The CLOuD9 system […]
Single-Nuclei Neuronal Methylomes Single in on New Brain Cell SubtypesAugust 20, 2017Every population has its own unique identity, and behind that is our brain, an organ composed of cellular populations with their own unique DNA methylation identities. However, capturing the true diversity of a population requires the ability to observe each individual in that group and for methylomes that requires innovations in single-cell bisulfite sequencing. In […]
Running in Circles: circRNAs Act as Shuttles for miRNA CargoAugust 15, 2017Feeling out of the loop about all the different non-coding RNAs being described? Well hold on, because circular RNAs (circRNA) are about to throw you for a loop. Mammalian circRNAs are created by covalent closure of transcribed exons into loops. These circRNAs are highly expressed in specific brain regions, and conserved between mice and humans. They […]