MicroRNA News and Research

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In genetics, microRNAs (miRNA) are single-stranded RNA molecules of 21-23 nucleotides in length, which regulate gene expression. miRNAs are encoded by genes from whose DNA they are transcribed but miRNAs are not translated into protein (i.e. they are non-coding RNAs); instead each primary transcript (a pri-miRNA) is processed into a short stem-loop structure called a pre-miRNA and finally into a functional miRNA. Mature miRNA molecules are partially complementary to one or more messenger RNA (mRNA) molecules, and their main function is to down-regulate gene expression.

Researchers discover manipulation of microRNA-29a shows potential of novel IBS treatment

A possible cause of irritable bowel syndrome has been traced to a small piece of RNA that blocks a substance protecting the colon membrane, leading to hostile conditions that can produce diarrhea, bloating and chronic abdominal pain.New research shows that this RNA segment sends signals that stop the activity of the gene that produces glutamine, an amino acid. Previous research has linked a shortage of glutamine in the gut with the seepage of toxins and bacteria through the intestinal wall, irritating nerves and creating disease symptoms.

3 Aug 2010

Scientists identify way to regulate uncontrolled growth of blood vessels

Researchers at the University of California, San Diego School of Medicine have identified a new way to regulate the uncontrolled growth of blood vessels, a major problem in a broad range of diseases and conditions.

2 Aug 2010

microRNA protects red blood cells from oxidant stress: Study

Pediatric researchers have discovered a new biological pathway in which small segments of RNA, called microRNA, help protect red blood cells from injury caused by chemicals called free radicals. The microRNA seems to have only a modest role when red blood cells experience normal conditions, but steps into action when the cells are threatened by oxidant stress.

2 Aug 2010

Researchers create artificial RNA inhibitor to block excess blood cells formation

Researchers at UT Southwestern Medical Center have uncovered a key step in the creation of new red blood cells in an animal study.They found that a tiny fragment of ribonucleic acid (RNA), a chemical cousin of DNA, prompts stem cells to mature into red blood cells. The researchers also created an artificial RNA inhibitor to block this process.

2 Aug 2010

Isis Pharmaceuticals receives $5M payment from GSK for dug development

Isis Pharmaceuticals, Inc. announced today that it has earned a $5 million milestone payment from GlaxoSmithKline related to the designation as a development candidate of a drug to treat an undisclosed rare and serious disease. Isis will develop the drug to Phase 2 proof-of-concept, at which time GSK has the option to license it.

29 Jul 2010

Loss of key nerve cells cause Parkinson's disease: Research

Scientists at the Stanford University School of Medicine have identified a molecular pathway responsible for the death of key nerve cells whose loss causes Parkinson's disease. This discovery not only may explain how a genetic mutation linked to Parkinson's causes the cells' death, but could also open the door to new therapeutic approaches for the malady.

29 Jul 2010

Asuragen reports collaborative study results of advanced PCR-based molecular profiling of FMR1 gene

Asuragen, Inc. announced today the results from two collaborative studies, one with the University of California Davis M.I.N.D. Institute and another with Rush University Medical Center, that demonstrate comprehensive molecular profiling of the Fragile X Mental Retardation (FMR1) gene using advanced PCR-based methods.

26 Jul 2010

Control of cell migration gene can reduce spread of oral cancer cells: Study

The spread of cancer cells in the tongue may be reduced if a gene that regulates cancer cell migration can be controlled, according to new research at the University of Illinois at Chicago.

26 Jul 2010

Roche, Exiqon join marketing forces for RealTime ready assays, microRNA PCR systems

Roche and Exiqon join marketing forces for Roche Applied Science's RealTime ready assays and Exiqon`s miRCURY LNA Universal RT microRNA qPCR system. As indicated by respective links on their websites, each system will complement the cooperator's product portfolio.

21 Jul 2010

University of Luebeck becomes part of Metaminer Cardiac Partnership

GeneGo, Inc., a leading provider of databases, software and services in systems biology and chemistry, announced today that Dr. Salah Mohamed in Department of Cardio and Thoracic Vascular Surgery at the University of Luebeck and his team will be part of the Metaminer Cardiac Partnership. Dr. Mohamed is published within 6 different reputed Scientific American Journals in connection with Biomarker Discovery work performed for the American Heart Association.

21 Jul 2010

Scientists develop new way to increase effectiveness of antiviral drugs

Scientists have developed a new way to target viruses which could increase the effectiveness of antiviral drugs.Instead of attacking the virus itself, the method developed at the University of Edinburgh alters the conditions which viruses need to survive and multiply.

20 Jul 2010

NanoString Technologies increases throughput of nCounter Analysis System

NanoString Technologies, Inc., a privately held life sciences company marketing a novel digital molecular barcoding technology for detecting and counting large sets of targets in biological samples, today announced that it has increased the throughput of its nCounter Analysis System by expanding its multiplexing capacity to 800 gene transcripts per reaction.

From NanoString Technologies 15 Jul 2010

Long-term exposure of arsenic may increase risk for lung cancer

To determine how arsenic increases the risk of lung cancer and to identify potential treatments, a Michigan State University researcher will use $1.7 million in federal funding during the next five years to examine why certain genes disrupt cells, leading to the disease.

15 Jul 2010

Asuragen, Life Technologies announce European launch of BCR/ABL1 Quant Test

Asuragen, Inc. and Life Technologies Corporation announced today that they have achieved CE-marking and commercial launch in Europe of the BCR/ABL1 Quant™ Test, Asuragen's clinically validated and cGMP manufactured test intended to aid clinicians in the monitoring and treatment of individuals afflicted with chronic myeloid leukemia (CML). Asuragen manufacturers the monitoring test, which is exclusively distributed by Life Technologies and runs on the company's Applied Biosystems CE-marked 7500 Fast Dx Real-Time PCR Instrument™.

13 Jul 2010

Sirtuin1 protein promotes memory, brain flexibility: MIT researchers

The same molecular mechanism that increases life span through calorie restriction may help boost memory and brainpower, researchers at MIT's Picower Institute for Learning and Memory report in the July 11 issue of Nature.

12 Jul 2010

Study: Small fragment of RNA appears to protect rats against cocaine addiction

A specific and remarkably small fragment of RNA appears to protect rats against cocaine addiction-and may also protect humans, according to a recent study funded by the National Institute on Drug Abuse (NIDA), a component of the National Institutes of Health. The study was published today in the journal Nature.

9 Jul 2010

MicroRNA 193b gene can slow the growth of melanoma, research shows

New Queen's University research has shown that the growth of melanoma, one of the most deadly forms of skin cancer, can be slowed when a little known gene called MicroRNA 193b is added.

9 Jul 2010

WaferGen Biosystems announces closing of $7.2M registered direct offering

WaferGen Biosystems, Inc., a leading developer of state-of-the-art genomic analysis systems, today announced the closing of a $7.2 million registered direct offering. The amount raised includes $1 million from the Chairman and CEO, Alnoor Shivji, and approximately $500,000 in the aggregate from four other members of the board of directors of WaferGen.

9 Jul 2010

MicroRNA-212 plays key role in determining vulnerability to cocaine addiction: Study

Scientists from The Scripps Research Institute have found that a particular type of genetic material plays a key role in determining vulnerability to cocaine addiction and may offer an entirely new direction for the development of anti-addiction therapies. In animal studies, the scientists found that a molecule called microRNA-212 was increased in the brains of test animals that had extended access to cocaine.

8 Jul 2010

Silence strengthens RNAi IP portfolio with issuance of key patent in structural modification technology

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.

8 Jul 2010