Your Brain on Stress: The Role of Dynamic DNA 6mA ModificationOctober 30, 2017Stress has a way of getting under our skin, where it can sink in so deep that it modifies our brain’s DNA. While it can alter DNA cytosine modifications, such as 5-methylcytosine (5mC), a new role for the N6-methyladenine (6mA) modification in stress response has now emerged. DNA 6mA has recently made the grade as […]
UBE3A Networks with Other Imprinted Genes to Shape Neurodevelopment and AutismOctober 24, 2017Networking shapes our brains in many ways; whether it be in a professional, social, or genomically imprinted fashion. Linking us into the latter, new findings from the lab of Janine LaSalle at the University of California, Davis, uncover a hub in an imprinted gene network critical to neurodevelopment. The imprinted 15q11-q13 locus is involved in […]
Neuron-specific Methylome Analysis Reveals BRCA1 as a New Pathogenic Contributor to Alzheimer’s DiseaseOctober 23, 2017Whether it is for the billing of a new film, the release of an album, or in the understanding of the pathogenesis of a disease, figuring out who the contributors are and what role they play represents an important first step. In the case of the sporadic neurodegenerative disorder Alzheimer’s Disease (AD), we know that […]
The Hi’s and Lo’s of Cohesin’s Crafty Chromatin ConcertoOctober 18, 2017While solos are the key to some of your favorite tunes, a masterpiece as magnificent as chromatin conformation is hardly the work of a one-man band; instead, it takes an orchestra of histone modifications to complement and counterpoint cohesin´s sonorific solos. Now, a duet from the labs of Francois Spitz (Pasteur Institute, France) and Leonid […]
Gimme Shelterin! – TRF1 Gene Therapy Promotes Healthy AgingOctober 3, 2017One of the eternal anthems by The Rolling Stones proclaims “Gimme Shelter”, but given the band members apparent immunity to aging combined with a new article from the lab of Maria A. Blasco (CNIO, Madrid, Spain), should the song now proclaim, “Gimme shelterin”? The shelterin complex regulates telomerase activity and protects the telomeric regions at […]
CRISPR-Cas9 Embryo Editing…….Of Mice and Men!September 27, 2017Presumably after a day spent in a local tavern instead of writing and editing verse, the famous Scottish poet Robert Burns noted that “The best laid schemes of mice and men, Often go awry”. However, a new study of genome editing in the embryos of mice and men led by Kathy K. Niakan (Francis Crick […]
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, […]