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The objective of the RNA Bioscience Initiative is to understand the role of RNA in biology, engage in collaborative research, create a fluid pipeline from basic science to clinical diagnostics and therapeutics, and train the next generation of RNA researchers.
Investigators on the CU Anschutz campus have already made important discoveries in the field, covering RNA structure-function, RNA biogenesis, mechanisms of regulation by non-coding RNAs, non-coding RNAs in disease, diagnostics, and therapeutics, cutting-edge RNA technologies and advanced genome-wide computational methods.
The RNA Bioscience Initiative continues to make substantial and sustained contributions to four major research areas:
A brief look at the latest discoveries from RBI faculty and trainees.
February 24, 2021
Tassa Saldi, Kent Riemondy, Benjamin Erickson, and David L. Bentley
Most RNA processing occurs co-transcriptionally. We interrogated nascent pol II transcripts by chemical and enzymatic probing and determined how the “nascent RNA structureome” relates to splicing, A-I editing and transcription speed. RNA folding within introns and steep structural transitions at splice sites are associated with efficient co-transcriptional splicing. Complete Abstract
October 16, 2020
Kejun Guo, Guannan Shen, Jon Kibbie, Tania Gonzalez, Stephanie M Dillon, Harry A Smith, Emily H Cooper, Kerry Lavender, Kim J Hasenkrug, Kathrin Sutter, Ulf Dittmer, Miranda Kroehl, Katerina Kechris, Cara C Wilson and Mario L Santiago
The Type I Interferons (IFN-Is) are innate antiviral cytokines that include 12 different IFNα subtypes and IFNβ that signal through the IFN-I receptor (IFNAR), inducing hundreds of IFN-stimulated genes (ISGs) that comprise the 'interferome'. Complete Abstract
August 26, 2020
Anna-Lena Steckelberg, Quentin Vicens, David A. Costantino, Jay C. Nix and Jeffrey S. Kieft
Exoribonuclease-resistant RNAs (xrRNAs) are discrete elements that block the progression of 5′ to 3′ exoribonucleases using specifically folded RNA structures. A recently discovered class of xrRNA is widespread in several genera of plant-infecting viruses, within both... Complete Abstract
August 18, 2020
Haolin Liu, Srinivas Ramachandran, Nova Fong, Tzu Phang, Schuyler Lee, Pirooz Parsa, Xinjian Liu, Laura Harmacek, Thomas Danhorn, Tengyao Song, Sangphil Oh, Qianqian Zhang, Zhongzhou Chen, Qian Zhang, Ting-Hui Tu, Carrie Happoldt, Brian O'Conner, Ralf Janknecht, Chuan-Yuan Li, Philippa Marrack, John Kappler, Sonia Leach and Gongyi Zhang
More than 30% of genes in higher eukaryotes are regulated by RNA polymerase II (Pol II) promoter proximal pausing. Pausing is released by the positive transcription elongation factor complex (P-TEFb). Complete Abstract
August 11, 2020
Austin E Gillen, Kent A Riemondy, Vladimir Amani, Andrea M Griesinger, Ahmed Gilani, Sujatha Venkataraman, Krishna Madhavan, Eric Prince, Bridget Sanford, Todd C Hankinson, Michael H Handler, Rajeev Vibhakar, Ken L Jones, Siddhartha Mitra, Jay R Hesselberth, Nicholas K Foreman and Andrew M Donson
Ependymoma (EPN) is a brain tumor commonly presenting in childhood that remains fatal in most children. Intra-tumoral cellular heterogeneity in bulk-tumor samples significantly confounds our understanding of EPN biology, impeding development of effective therapy. We, therefore, use single-cell RNA sequencing, histology, and deconvolution to catalog cellular heterogeneity of the major childhood EPN subgroups. Complete Abstract