EpiGenie Book Reviews: EpigeneticsMarch 11, 2013If you’ve spent any time browsing the EpiGenie site, then you already know that we find epigenetics pretty interesting. So, of course any book with the title of Epigenetics is going to grab our attention. Epigenetics edited by Jörg Tost, gathers information from several top scientists working in various facets of epigenetics to assemble a […]
lncRNA Regulates Tumor Suppressor Two WaysMarch 4, 2013A little redundancy can be a good thing. A team of researchers led by Dr. Kevin Morris at the Scripps Institute, in La Jolla, recently showed that a little redundancy in the regulation of PTEN, a tumor suppressor gene, can be pretty useful…but also really complicated. PTENpg1, a PTEN pseudogene, regulates PTEN via both sense […]
Correcting Brain Tissue Heterogeneity with DNA MethylationFebruary 28, 2013A few weeks ago, we highlighted some great work that has been very useful in helping correct for heterogeneous cell populations in blood. Now, we’ve just got wind of a clever new bioinformatics tool to correct for heterogeneity in the brain. Researchers have studied DNA methylation in brain tissue to see if there’s an association between that modification and […]
Guide: Getting Started with ChIP-SeqFebruary 27, 2013Chromatin-immunoprecipitation (ChIP) followed by sequencing of the immuno-precipitated DNA is a powerful tool for the investigation of Protein:DNA interactions. To perform ChIP-seq, chromatin is isolated from cells or tissues and fragmented. Antibodies against chromatin associated proteins are used to enrich for specific chromatin fragments. The DNA is recovered, sequenced and aligned to a reference genome […]
The Ups and Downs of miRNA and MeCP2 in Fetal BrainsFebruary 26, 2013What goes up must come down. And in the developing human brain, when miR-483-5p levels go up, it makes MeCP2 levels go down, according to researchers in a recent report. Problems with MeCP2 cause Rett Syndrome and other neurological disorders. MeCP2 levels are low in fetal stages of development, but high after birth in the […]
High Def DNA Methylome Maps Point Out Male and Female Germ Cell DifferencesFebruary 20, 2013What sets males and females apart? Actually, let’s not head there, but how about at the methylome level? Quite a bit it appears. In a recent paper, researchers from Japan report that male and female primordial germ cells (PGCs) have different methylomes during development—at least in mice. While these germ cells divide and move to […]
Tackling Heterogeneity with DNA MethylationFebruary 12, 2013Heterogeneity adds value to our culture in numerous ways, but when it comes to analyzing large-scale case/control studies with blood, heterogeneity can be more frustrating than a Rubik’s Cube. Since blood is an easy-to-get, relatively noninvasive specimen, it’s ideal for disease diagnosis and for monitoring the effectiveness of treatments. Scientists have reported that DNA methylation […]
EpiGenie Guide: ChIP Antibody ValidationFebruary 11, 2013If you can find a ChIP Grade or ChIP Validated antibody, then you’ve got a head start. But there’s no reason to stress if you can’t. Leave that for the data analysis part of your experiments (only kidding). A quick check of the spec sheet of any antibody can reveal lots of useful info. Here […]
The Epigenetics of Organ TransplantationJanuary 31, 2013Dr. Daniel Salomon discusses the state of organ transplants, what obstacles exist, and how epigenetics might be central to improving long-term health in patients. The Challenges in Transplantation My background is in transplantation medicine, transplantation immunology. And my interests are to change the way we manage patients. There’s a huge series of challenges right […]
miRNAs that Bind Coding Sequences are Specialized for Inhibiting TranslationJanuary 28, 2013We all have our specialties—maybe yours is in histone modifications or maybe you can name every American Idol winner. In any case, miRNAs have some specialization too. Researchers now say that they’ve figured out what miRNAs that bind within the CDS, or coding sequence, of an mRNA do—they specialize in inhibiting translation. Most studies talk […]