A new method for generating arrayed RNAi screening tools for any organism
Poster May 08, 2018
Jesse Stombaugh, Megan Basila, Amanda Haas, Annaleen Vermeulen, Melissa L. Kelley, Anja van Brabant Smith
For studies in alternate species, siRNAs needed to be custom synthesized at a relatively high cost and very long manufacturing time. To improve the accessibility of these large screening libraries to researchers working in non-human or mouse model systems, we have recently developed a new cost-effective enzymatic manufacturing method to generate large collections of siRNAs, called Dharmacon™ Zoonome™ siRNAs (z-siRNAs). Like other well-established siRNA product lines, they are designed using the proprietary SMARTselection design algorithm for potent and specific gene expression knockdown, but are manufactured on-demand using a novel enzymatic method. Now available are customized arrayed collections of pools of four z-siRNAs to each gene target for screening hundreds or thousands of genes for any organism with an annotated genome. Here we show successful gene knockdown in Cricetulus griseus (Chinese hamster) and Bos taurus (bovine) cell lines using Zoonome siRNAs. With this new availability of large screening libraries, the power of unbiased functional screening in nearly any species can accelerate findings important to animal health, food safety, and infectious disease.
Psychiatric Risk Gene Cacna1c and Early Life Stress: Potential Gene-Environment interactions?Poster
Early life stress (ELS) is highly associated with development of psychopathology
and mood disorders in adulthood. Genetic studies have identified variation in the gene calcium voltage-gated channel subunit alpha1C (CACNA1C) to increase risk for several psychiatric disorders. This poster assessed the expression of Cacna1c following prepubertal stress.
Novel Role of the Innate Immune DNA Sensor IFI16 (Interferon Gamma Inducible Protein 16) as a Major Epigenetic Modulator During KSHV Infection and Lytic ReactivationPoster
Studies have shown that IFI16 acts as an antiviral restriction factor against a number of DNA viruses, by inhibiting viral replication or transcription through epigenetic modifications. However, till date, no specific epigenetic function of IFI16 has been identified. Here, we have discovered that IFI16 recruits two histone methyltransferases on the KSHV episome leading to altered Histone H3K9 methylation, thus regulating its lifecycle.READ MORE
Hepatocellular Carcinoma with Small Cell Histology: A Rare Mimic of Metastatic Tumors Involving the LiverPoster
Two cases of hepatocellular carcinoma (HCC) with small cell histology, a rare morphologic variant of HCC, are presented.READ MORE