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.
Silence Therapeutics plc announces the issuance of United States patent 7,750,144, titled Methods and Compositions for Enhancing Efficacy and Specificity of RNA Silencing, by the United States Patent and Trademark Office (USPTO). The issued patent generally claims methods of producing double stranded (RNAi) agents having decreased off-target silencing activity through certain structural modifications. The ability to minimize the off-target effects of RNAi therapeutics is critical for controlling unwanted cellular activity and/or potential safety concerns.
Sirnaomics, Inc. announced today that the company has received two SBIR (Small Business Innovation Research) grants from National Cancer Institute (NCI) and National Institute of Allergy and Infectious Diseases (NIAID), of National Institute of Health (NIH). Sirnaomics, Inc., a biopharmaceutical company founded in early 2007, is dedicated to developing RNA interference (RNAi) therapeutics for treatment of critical human diseases.
Quark Pharmaceuticals, Inc., a world leader in the discovery and development of RNAi-based therapeutics, today announced results from a second study of QPI-1007, a neuroprotective siRNA drug, in rat ocular hypertension model of glaucoma, conducted by Prof. Adriana Di Polo of the Department of Pathology and Cell Biology, Universite de Montreal.
Quark Pharmaceuticals, Inc., a world leader in the discovery and development of RNAi-based therapeutics, today announced that two of its siRNA drug candidates were featured in the following two presentations at the Glaucoma & Retinopathies 2010 conference, which was held June 21-22, 2010 in London, UK.
Alnylam Biotherapeutics, a division of Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today the presentation of new data at the IBC 6th Annual Cell Line Development and Engineering conference held in San Francisco, California from June 21 - 24, 2010.
Mersana Therapeutics, a platform-based cancer therapeutics company, today announced that it has initiated a Phase 1 clinical trial to study the safety and pharmacokinetics of XMT-1107 in patients with refractory advanced solid tumors. XMT-1107 is a novel anti-angiogenic fumagillin analog that employs Mersana's Fleximer platform. Mersana's XMT-1001, a conjugate of Fleximer and camptothecin, is currently completing a Phase 1 study.
Santaris Pharma A/S, a clinical-stage biopharmaceutical company focused on the discovery and development of RNA-targeted therapies and miRagen Therapeutics, Inc., a biopharmaceutical company focused on developing innovative microRNA-based therapeutics for cardiovascular and muscle disease, announced today that they have formed a strategic alliance to develop microRNA-targeted medicines for the treatment of cardiovascular disease.
Pulmonary arterial hypertension (PAH) is a progressive disease, marked by shortness of breath and fatigue which can be fatal if untreated. Increased pressure in the pulmonary artery and its branches is associated with dysfunctional growth control of endothelial and smooth muscle cells leading to excessive thickening of the blood vessel wall, obliteration of the lumen and right heart failure.
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today that the United States Patent and Trademark Office (USPTO) has awarded a Notice of Allowance for the "John et al." patent (Application No. 10/384,463), which covers methods of inhibiting mutant genes with double-stranded RNAs from 19 to 30 nucleotides in length.
Quark Pharmaceuticals, Inc., a world leader in the discovery and development of RNAi-based therapeutics, today announced that the European Commission has granted Orphan Medicinal Product Designation for QPI-1002 (also referred to as "I5NP") for the prophylaxis of delayed graft function in kidney transplant patients.
Silence Therapeutics plc announces the issuance of United States patent 7,732,593, titled Methods and Compositions For Controlling Efficacy of RNA Silencing, by the United States Patent and Trademark Office. The issued patent, which is based on the seminal research of Phillip D. Zamore, Ph.D., Howard Hughes Medical Institute Investigator, the Gretchen Stone Cook Chair of Biomedical Sciences, and Professor of Biochemistry & Molecular Pharmacology at University of Massachusetts Medical School, generally claims methods of enhancing the RNA silencing activity of RNA interference (RNAi) agents through certain structural modifications.
Quark Pharmaceuticals, Inc., a world leader in the discovery and development of RNAi-based therapeutics, today announced the closing of a private financing by the existing investors of Quark totaling an aggregate of $10 million. The investors are funds of the prestigious SBI Holdings Group in Japan. In connection with the financing, Mr. Yoshitaka Kitao, CEO of SBI Holdings, Inc. and Mr. Robert Takeuchi, Director of SBI Investment Co., Ltd. will become members of the Quark board of directors.
Nativis, Inc., a La Jolla, Calif.-based life science company, has been issued patents in Japan, China and India for its innovative technology that captures the unique signals of approved drugs at the atomic level and then delivers the signal in a solution to treat serious illnesses. The technology, which also has U.S., Canadian and Australian patents, promises to transform the treatment of diseases, including those for which there are no known cures, such as brain cancer.
NexGen Biomedical, Inc. announced today that it is offering its RNAi / PSR platform technology for sale. "While technologies like siRNA are well suited for disease conditions involving expression of a single protein, the RNAi / PSR technology is better suited for conditions involving expression of a broad spectrum of proteins such as happens with cell hyperproliferation, inflammation, and viral infections.
Arrowhead Research Corporation announced today that its portfolio company, Leonardo Biosystems, has received a $2.5 million grant from the Texas Emerging Technology Fund, a state fund established to accelerate commercialization of new technologies. Leonardo Biosystems, co-founded by prominent nanoscientist Dr. Mauro Ferrari, professor at the University of Texas, and Arrowhead's, CEO Dr. Christopher Anzalone, is engineering a multi-stage drug delivery platform to improve the effectiveness of drug therapy, particularly for cancer.
Royal Philips Electronics and RXi Pharmaceuticals Corporation, a US-based biopharmaceutical company, today announced that they have entered into a joint research agreement to explore the benefits of combining proprietary technologies from both companies for the targeted delivery of experimental therapeutics based on RNA interference.
G-coupled protein receptors (GPCRs), also known as 7-transmembrane proteins, constitute the single largest class of therapeutic targets for clinical and investigational drugs. There are ~800 predicted members of this class in the human genome, involved in diverse signaling pathways in a wide array of cells and tissue types. Modulation of GPCR function has proven to have therapeutic benefit in a wide variety of diseases in immunology, neurology, cardiology, and oncology.
Scientists using tiny particles of genetic material to interfere in the replication process of the deadly Ebola virus have successfully prevented monkeys exposed to that virus from dying of hemorrhagic fever. The proof-of-concept study, published in this week's issue of The Lancet, suggests that such protection also should be possible in humans.
Silence Therapeutics plc announces the issuance of United States patent 7,723,316, titled Compositions and Methods of RNAi Therapeutics For Treatment of Cancer and Other Neovascularization Disease, by the United States Patent and Trademark Office (USPTO).
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today that the Board of Appeals of the European Patent Office (EPO) has ruled that claims of the Kreutzer-Limmer '945 (EP 1214945) patent meet needed requirements under European patent law. The '945 patent comprises broad claims covering the length and certain structural requirements for siRNAs that are important for advancement of RNAi therapeutics.
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