Description: Small non-coding RNAs (sncRNAs) are highly abundant RNAs, typically <100 nucleotides long, that act as key regulators of diverse cellular processes. Although thousands of sncRNA genes are known to exist in the human genome, no single database provides searchable, unified annotation, and expression information for full sncRNA transcripts and mature RNA products derived from these larger RNAs. Here, we present the Database of small human noncoding RNAs (DASHR). DASHR contains the most comprehensive information to date on human sncRNA genes and mature sncRNA products. DASHR provides a simple user interface for researchers to view sequence and secondary structure, compare expression levels, and evidence of specific processing across all sncRNA genes and mature sncRNA products in various human tissues. DASHR annotation and expression data covers all major classes of sncRNAs including microRNAs (miRNAs), Piwi-interacting (piRNAs), small nuclear, nucleolar, cytoplasmic (sn-, sno-, scRNAs, respectively), transfer (tRNAs), and ribosomal RNAs (rRNAs). Currently, DASHR (v1.0) integrates 187 smRNA high-throughput sequencing (smRNA-seq) datasets with over 2.5 billion reads and annotation data from multiple public sources. DASHR contains annotations for ∼48 000 human sncRNA genes and mature sncRNA products, 82% of which are expressed in one or more of the curated tissues. DASHR is available at http://lisanwanglab.org/DASHR.
Newly published in the Nucleic Acid Research Database issue:
LA JOLLA, Calif., Nov. 12, 2015 /PRNewswire/ – Regulus Therapeutics Inc. (NASDAQ:RGLS), a biopharmaceutical company leading the discovery and development of innovative medicines targeting microRNAs (miR), today announced that the U.S. Patent and Trademark Office (“USPTO”) has granted patents related to Regulus’ most advanced microRNA therapeutics, RG-101, the company’s wholly-owned, GalNAc-conjugated anti-miR-122 being developed to treat HCV, and RG-012, an anti-miR-21 being developed to treat Alport syndrome.
- RG-101 – claims of the patent, owned solely by Regulus, cover the unconjugated anti-miR-122 component of RG-101, the GalNAc-conjugated anti-miR-122 of RG-101, and pharmaceutical compositions comprising either the unconjugated or conjugated compounds. Regulus’ patent portfolio related to RG-101 covers compositions and methods of use for the treatment of HCV in the United States and numerous foreign jurisdictions.
- RG-012 – claims of the patents, owned solely by Regulus, cover the anti-miR-21 component of RG-012, as well as pharmaceutical compositions and methods of treatment of [click to continue…]
Long-Acting Parenteral Formulation of GSK2878175 Being Developed; Co-Administration with RG-101 May Enable Single Visit Therapy for HCV Patients
LA JOLLA, Calif., Nov. 3, 2015 /PRNewswire/ — Regulus Therapeutics Inc. (NASDAQ:RGLS), a biopharmaceutical company leading the discovery and development of innovative medicines targeting microRNAs (miR), today announced that it has expanded development of RG-101, Regulus’ wholly-owned, GalNAc-conjugated anti-miR that targets miR-122, through a clinical trial collaboration and formulation development agreement with GlaxoSmithKline (“GSK”) (NYSE: GSK). The companies plan to conduct a Phase II study to evaluate the combination of RG-101 and GSK2878175, an investigational non-nucleoside NS5B polymerase inhibitor, for the treatment of HCV. Concurrently, GSK will work on developing a long-acting parenteral for injection (“LAP”) formulation of GSK2878175 which could improve patient compliance through reduced dosing intervals and potentially extend opportunities for HCV therapeutic intervention. This LAP formulation of GSK2878175 may be used in additional clinical trials together with RG-101 following completion of the planned Phase II study, although any additional studies are not covered by the collaboration agreement.
“We are pleased to work with GSK to advance the scientific understanding of the potential for a combination regimen co-administered all at once to treat HCV,” said Paul Grint, M.D., President and CEO of Regulus. “The study to be conducted [click to continue…]
MicroRNAs (miRNAs) are a novel class of gene regulators that are now the center of their own research field in human cancer: the non-coding RNA field. MiRNAs are ~22nt long non-coding RNA transcripts that derive from hairpin precursors and regulate gene-expression of target genes by inhibiting the protein production of the target genes’ messenger RNA (Jonas and Izaurralde 2015; Lin and Gregory 2015). Although much is known about miRNAs, with now nearly 40’000 scientific articles written about them alone, paradoxically defining what is and what is not a miRNA has been difficult, severely hampering studies on their potential roles in cancer, for example.
In order to enable researchers to accurately study the dynamics of the human miRNA landscape, an international group under the lead of Professor Kevin J. Peterson (Dartmouth, US) and Dr. Bastian Fromm (Oslo, Norway) decided to revisit the available human miRNA complement (Kozomara and Griffiths-Jones 2014). Fromm et al established and then applied a set of consistent criteria for the annotation of miRNAs. This set was derived from numerous recent publications that elucidated details of miRNA maturation/processing in the cell (Auyeung, et al. 2013; Schirle and MacRae 2012; Schirle, et al. 2014a; Schirle, et al. 2014b; Seitz, et al. 2008; Suzuki, et al. 2015; Tsutsumi, et al. 2011). They show that less than a third of the 1,881 human miRBase entries are robustly supported as the products of miRNA genes. These robustly supported 523 human miRNA genes sequences are [click to continue…]