Small interfering RNA (siRNA), sometimes known as short interfering RNA or silencing RNA, is a class of double-stranded RNA molecules, 20-25 nucleotides in length, that play a variety of roles in biology. Most notably, siRNA is involved in the RNA interference (RNAi) pathway, where it interferes with the expression of a specific gene. In addition to their role in the RNAi pathway, siRNAs also act in RNAi-related pathways, e.g., as an antiviral mechanism or in shaping the chromatin structure of a genome; the complexity of these pathways is only now being elucidated.
Molecularly targeted therapies can reduce tumors rapidly. However, not all tumors respond to the drugs, and even those that do often develop resistance over time. Looking for a way to combat the problem of resistance, researchers at Fox Chase Cancer Center hypothesized that hitting already weakened cancer cells with a second targeted agent could kill them-but only if it was the right second agent.
In order for targeted therapies against cancer to be effective, scientists need to understand upfront what related proteins in a signaling "network" makes a cancer cell resistant to a drug and selectively target them as well, say researchers at Georgetown Lombardi Comprehensive Cancer Center and Fox Chase Cancer Center.
Patients who experience physical or psychological stress - including rigorous exercise - one or two days before a cancer treatment might be unknowingly sabotaging their therapy, new research suggests.
Silence Therapeutics plc announces the issuance of two new patents by the United States Patent and Trademark Office (USPTO) which are broadly directed to double-stranded short interfering RNA (siRNA) sequences against the validated cancer targets epidermal growth factor receptor related protein (EGFR-RP) and vascular endothelial growth factor receptor 1 (VEGFR1).
Scripps Research Institute scientists have identified two proteins with potential to be important targets for research into a wide range of health problems, including pain, deafness, and cardiac and kidney dysfunction.
The Board of Directors of Ipsen, chaired by Jean-Luc Bélingard, met on August 30, 2010 to review the Group's results for the first half 2010, published today
Alnylam Pharmaceuticals, Inc.,a leading RNAi therapeutics company, announced today that it will make a total of 16 oral presentations at the American Chemical Society (ACS) Fall 2010 240th National Meeting & Exposition being held in Boston, Mass. from August 22-26, 2010.
Labcyte, whose Echo liquid handling platforms move liquids with sound, today announced the grant of its 40th US patent. Patent number 7,717,544 describes how in real time acoustic energy is optimized to transfer a droplet of any fluid, even those that are unknown. Labcyte's acoustic droplet ejection technology offers touchless transfer of a wide variety of fluids, with major benefits in life science applications including drug discovery, genomics, proteomics and diagnostics.
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, and collaborators at The Parkinson's Institute and the Mayo Clinic have published new research findings in the journal Public Library of Science (PLoS). The new data show effective silencing of the alpha-synuclein gene with an RNAi therapeutic administered directly to the substantia nigra in the CNS of non-human primates.
Cerulean Pharma Inc., a leader in designing and developing nanopharmaceuticals, today announced it will assemble a group of leading scientific experts at the American Chemical Society's ("ACS") 240th National Meeting & Exposition for a three-day thought leadership summit on the advancement of nanotechnology in the pharmaceutical and diagnostic industries.
Silence Therapeutics plc, a leading international RNAi therapeutics company, is pleased to note that its partner, Quark Pharmaceuticals, Inc., has announced the grant of an option to Novartis to obtain an exclusive worldwide license to develop and commercialise QPI-1002, a p53 temporary inhibitor siRNA drug which incorporates Silence's AtuRNAi technology.
Quark Pharmaceuticals, Inc., a world leader in the discovery and development of RNAi-based therapeutics, today announced that it has granted Novartis an option to obtain an exclusive worldwide license to develop and commercialize its p53 temporary inhibitor siRNA drug QPI-1002, currently the subject of a Phase II clinical trial.
A protein associated with cancer progression when abundant inside of tumors also unexpectedly regulates the creation of new blood vessels that feed the tumor outside, a research team led by scientists at The University of Texas MD Anderson Cancer Center reports in the August edition of Cancer Cell.
Arrowhead Research Corporation today announced financial results for its fiscal 2010 third quarter ended June 30, 2010.
Labopharm Inc. today reported its financial results for the second quarter and first six months ended June 30, 2010. All figures are in Canadian dollars unless otherwise stated.
Dicerna Pharmaceuticals, Inc., a second generation RNA interference company developing novel therapeutics utilizing its proprietary Dicer Substrate Technology™ and Dicer Substrate siRNA molecules, today announced that it has closed a $25 million Series B round of financing. New investor Domain Associates led the round, with all existing investors participating - Oxford Bioscience Partners, Skyline Ventures and Abingworth.
Silence Therapeutics plc announces the issuance of United States patent 7,772,203, titled "Methods and Compositions for Controlling Efficacy of RNA Silencing," by the United States Patent and Trademark Office (USPTO). The issued patent generally claims methods of enhancing RNA silencing with a double stranded RNA interference (RNAi) agent. The patent's RNA silencing method claims include coverage for the administering of a pharmaceutical composition containing short interfering RNA (siRNA), micro RNA (miRNA), pre-miRNA or short hairpin (shRNA) molecules. Silence believes the proprietary structural modification techniques covered in this patent will play a key role in increasing the potential therapeutic efficacy of RNAi therapeutics.
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, and collaborators from the Massachusetts Institute of Technology (MIT), The University of British Columbia (UBC), AlCana Technologies, Inc., and Tekmira Pharmaceuticals Corporation, presented results from multiple ongoing research efforts regarding the discovery of novel technologies for the systemic delivery of RNAi therapeutics.
Alnylam Pharmaceuticals, Inc. a leading RNAi therapeutics company, announced today the publication of new research findings in the journal Nature describing the discovery and validation of the role of the gene Sort1 in the development of cardiovascular disease, including myocardial infarction (MI). This work was done with collaborators at University of Pennsylvania (UPenn) School of Medicine, Massachusetts General Hospital (MGH), and the Broad Institute. The collaborative effort combined genome-wide association studies (GWAS) and RNAi technology to identify and validate novel genes as targets for new therapies for heart disease.
Bio-Path Holdings, Inc.,, a biotechnology company with drug development operations in Houston, Texas, announced today that the first patient has been dosed in a Phase I study of its cancer drug candidate, Liposomal Grb-2 (L-Grb-2 or BP-100-1.01), in patients with Acute Myeloid Leukemia (AML), Chronic Myelogenous Leukemia (CML), Acute Lymphoblastic Leukemia (ALL) or Myelodysplastic Syndrome (MDS).
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