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.
Researchers have tracked the genetic mutations that have occurred in the Ebola virus during the last four decades. Their findings, published in mBio, the online open-access journal of the American Society for Microbiology, identified changes in the current West African outbreak strain that could potentially interfere with experimental, sequence-based therapeutics.
Precision NanoSystems, a leader in the development and application of microfluidics for the manufacture of nanomedicines; and, Arcturus Therapeutics, a leading small interfering RNA (siRNA) and messenger RNA (mRNA) drug discovery and development company, today announced a partnership for the manufacture of RNA medicines.
Arcturus Therapeutics Inc., developing the 'next wave' of RNA medicines, today announced that Joseph Payne, President and Chief Executive Officer, is scheduled to present a corporate overview, including the company's new messenger RNA (mRNA) therapeutics pipeline, at two upcoming healthcare conferences.
Sirnaomics, Inc. and its affiliate Suzhou Sirnaomics Pharmaceutics, Co. Ltd., together with its partner Guangzhou Xiangxue Pharmaceutical, Co. Ltd., (SZSE: 300147), have formally submitted an Investigational New Drug (IND) Application to the China Food and Drug Administration for STP705, an anti-fibrosis RNA interference (RNAi) therapeutic for prevention and treatment of human skin hypertrophic scars.
While aptamers—single-stranded nucleic acids—offer promise as drug-delivery tools for cancer treatment, it has proven difficult to get them to tumor cells at therapeutic levels.
The type 3 interferons - usually called the “lambda” interferons, or “IFNL” - are the most recently identified IFNs. We (myself and Sergei Kotenko) originally identified the receptor and then the three ligands (IFNL1,2,3; very recently a fourth, IFNL4, was discovered); the key paper was published in 2003.
Researchers from the UNC School of Medicine and colleagues at The University of Texas MD Anderson Cancer Center have developed a new approach to block the KRAS oncogene, one of the most frequently mutated genes in human cancer.
Traumatic spinal cord injury (SCI) is a devastating condition with few treatment options. Studies show that damage to the barrier separating blood from the spinal cord can contribute to the neurologic deficits that arise secondary to the initial trauma. Through a series of sophisticated experiments, researchers reporting in The American Journal of Pathology suggest that matrix metalloproteinase-3 (MMP-3) plays a pivotal role in disruption of the brain/spinal cord barrier (BSCB), cell death, and functional deficits after SCI.
The Ebola virus is spreading rapidly and to an unexpected extent. The outbreak does not follow the patterns experienced in the past and the virus shows a new disease dynamic in regions, where it has never been recorded before. For this reason, the German National Academy of Sciences Leopoldina, acatech – the German Academy of Science and Engineering, and the Union of the German Academies of Sciences and Humanities have presented a statement on the Ebola epidemic today.
Researchers at Sanford-Burnham Medical Research Institute have identified a set of RNA molecules that are detectable in tissue samples and urine of prostate cancer patients but not in normal healthy individuals.
Avidity NanoMedicines today announced that it has expanded its investor syndicate through the closing of a $6 million convertible note financing co-led by Fidelity Biosciences and TPG Biotech.
Scientists at the University of York are working on a promising new approach for tackling colorectal cancer, the second most common cause of cancer-related death.
Acromegaly is a chronic, life-threatening disease triggered by a benign tumour of the pituitary gland causing excessive growth hormone release. Oversupply of growth hormone stimulates liver, fat and kidney cells to produce excess levels of Insulin-Like Growth Factor I (IGFI), which causes abnormal growth of the bones of the hands, face and feet and bodily organs.
Small RNA molecules, including microRNAs (miRNAs) and small interfering RNAs (siRNAs), offer tremendous potential for new therapeutic agents to inhibit cancer cell growth. However, delivering these small RNAs to solid tumors remains a significant challenge, as the RNAs must target the correct cells and avoid being broken down by enzymes in the body.
Oncothyreon Inc., a biotechnology company specializing in the development of innovative therapeutic products for the treatment of cancer, today announced that it has acquired Alpine Biosciences, Inc., of Seattle, Washington, a privately held biotechnology company developing protocells, a nanoparticle platform technology designed to enable the targeted delivery of multiple therapeutic agents, including nucleic acids, proteins, peptides and small molecules.
Circulating tumor cells spread ovarian cancer through the bloodstream, homing in on a sheath of abdominal fatty tissue where it can grow and metastasize to other organs, scientists at The University of Texas MD Anderson Cancer Center report in Cancer Cell.
PeptiMed announced today that under a Material Transfer Agreement it will collaborate with the National Cancer Institute's (NCI) Nanotechnology Characterization Laboratory (NCL), located at the Frederick National Laboratory of Cancer Research in Frederick, MD.
In 2012, about 8.2 million people died of cancer making the disease a major cause of death worldwide. According to the WHO World Cancer Report 2014, this figure is expected to rise within the next two decades.
Targeted therapies have revolutionised the treatment of cancer since they were first introduced. Amongst the first medications approved in Europe, was the breast cancer drug Herceptin, which was approved in 2000. Then, the drug Glivec, was initially introduced to treat a certain form of leukaemia, and approved in 2001. Targeted therapies specifically inhibit molecules within so-called signalling pathways that usually control cell growth, death and differentiation. If they are altered, for example falsely inactivated or activated, the cells may start growing in an uncontrolled manner.
Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today new pre-clinical results with its Development Candidate (DC) for ALN-CC5, a subcutaneously administered investigational RNAi therapeutic targeting complement component C5 in development for the treatment of complement-mediated diseases.
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