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.

microRNA-223 molecule plays a surprising role in protecting brain cells from stroke effects

A small molecule known to regulate white blood cells has a surprising second role in protecting brain cells from the deleterious effects of stroke, Johns Hopkins researchers report. The molecule, microRNA-223, affects how cells respond to the temporary loss of blood supply brought on by stroke - and thus the cells' likelihood of suffering permanent damage.

29 Nov 2012

Alnylam advances Tuschl II patent estate through the USPTO

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today that the United States Patent and Trademark Office has issued Notices of Allowance for three patent applications from the company's exclusively held Tuschl II patent estate.

26 Nov 2012

MicroRNAs in ovarian cancer cells promote tumor growth

Unraveling the mechanism that ovarian cancer cells use to change normal cells around them into cells that promote tumor growth has identified several new targets for treatment of this deadly disease.

22 Nov 2012

ALN RNAi therapeutic program represents novel approach for treatment of AAT deficiency

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today that it has presented new pre-clinical data with an RNAi therapeutic targeting alpha-1 antitrypsin (AAT) for the treatment of liver disease associated with AAT deficiency. These data were presented at the 63rd Annual Meeting of the American Association for the Study of Liver Diseases (AASLD, "The Liver Meeting") held November 9-13, 2012 in Boston.

15 Nov 2012

Alnylam third quarter 2012 revenues decrease to $16.8 million

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, today reported its consolidated financial results for the third quarter 2012, and company highlights.

6 Nov 2012

Researchers discover how tamoxifen-resistant breast-cancer cells grow and proliferate

A study by researchers at the Ohio State University Comprehensive Cancer Center - Arthur G. James Cancer Hospital and Richard J. Solove Research Institute (OSUCCC - James) has discovered how tamoxifen-resistant breast-cancer cells grow and proliferate.

31 Oct 2012

Genzyme, Alnylam partner to develop and commercialize RNAi therapeutics against ATTR

Alnylam Pharmaceuticals, Inc. and Genzyme, a Sanofi company, announced today that they have formed an exclusive alliance to develop and commercialize RNAi therapeutics targeting transthyretin (TTR) for the treatment of transthyretin-mediated amyloidosis (ATTR) in Japan and other Asia-Pacific countries.

23 Oct 2012

New insights into how miR-30d can promote healthy insulin production

Work by Michigan Technological University biologist Xiaoqing Tang is yielding new insights into how a tiny snippet of genetic material can promote healthy insulin production in mice.

13 Oct 2012

GW professor to develop blood test for early detection of breast cancer

Today, patients with precancerous lesions, or early-stage breast cancer are usually diagnosed after a mammography screening. This method of detection can lead to false-positives and overtreatment, since mammography cannot determine whether pre-cancerous cells will actually turn into breast cancer. This may all change after Sidney Fu, M.D., professor of medicine at the George Washington School of Medicine and Health Sciences (SMHS), completes his study of early breast cancer detection using novel small RNA (microRNA or miRNA) biomarkers.

5 Oct 2012

Inhibiting DUSP6 protein can restore immune cells’ responsiveness to a more youthful state

The older we get, the weaker our immune systems tend to become, leaving us vulnerable to infectious diseases and cancer and eroding our ability to benefit from vaccination. Now Stanford University School of Medicine scientists have found that blocking the action of a single protein whose levels in our immune cells creep steadily upward with age can restore those cells' response to a vaccine.

1 Oct 2012

MiR-214 plays a critical role in regulating ovarian cancer stem cell properties

Researchers at Moffitt Cancer Center have discovered that the micro ribonucleic acid miR-214 plays a critical role in regulating ovarian cancer stem cell properties. This knowledge, said the researchers, could pave the way for a therapeutic target for ovarian cancer.

28 Sep 2012

MicroRNA processing in fat tissue plays a major role in aging and stress resistance

As part of their ongoing research investigating the biology of aging, the greatest risk factor for type 2 diabetes and other serious diseases, scientists at Joslin Diabetes Center have identified a new factor - microRNA processing in fat tissue - which plays a major role in aging and stress resistance.

27 Sep 2012

U.S. District Court rules in favor of Alnylam in patent infringement case against Tekmira

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today that the U.S. District Court of the District of Massachusetts has ruled in favor of Alnylam and has denied Tekmira Pharmaceuticals Corporation's motion to dismiss certain claims and motion to disqualify Alnylam's counsel in an infringement suit filed in January 2012.

26 Sep 2012

Two tiny RNA molecules play a key role in pathological heart growth and failure

Cardiac stress, for example a heart attack or high blood pressure, frequently leads to pathological heart growth and subsequently to heart failure. Two tiny RNA molecules play a key role in this detrimental development in mice, as researchers at the Hannover Medical School and the Göttingen Max Planck Institute for Biophysical Chemistry have now discovered.

26 Sep 2012

PAM50 potentially simplifies underlying breast tumor biology

On September 23, researchers published online in the journal Nature a study of the molecular biology of breast cancer, using the intrinsic subtypes as defined by the PAM50 gene signature as an organizing framework for analyzing genomic and proteomic aberrations. This landmark study both underscores the emergence of the intrinsic subtypes as a powerful taxonomy of breast cancer in research, and PAM50's role as the gold standard for categorizing breast cancer by subtype.

From NanoString Technologies 25 Sep 2012

Molecular similarity between one sub-type of breast cancer and ovarian cancer

A team of scientists with The Cancer Genome Atlas program reports their genetic characterization of 800 breast tumors, including finding some of the genetic causes of the most common forms of breast cancer, providing clues for new therapeutic targets, and identifying a molecular similarity between one sub-type of breast cancer and ovarian cancer.

24 Sep 2012

MicroRNA-145 gene therapy can drastically reduce severity and progression of atherosclerosis

Researchers at St. Michael's Hospital are one step closer to understanding why plaque bursts in coronary arteries and causes heart attacks.

11 Sep 2012

New findings establish connection between microRNAs and cellular metabolism

New findings establish a connection between microRNAs and cellular metabolism, suggesting that a drug designed to inhibit these tiny molecules -- once considered to be "junk" DNA -- would have a positive effect against obesity.

7 Sep 2012

Alnylam announces complete results from ALN-RSV01 Phase IIb trial on RSV infection

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today complete results from its Phase IIb trial with ALN-RSV01 for the treatment of respiratory syncytial virus (RSV) infection in lung transplant patients.

6 Sep 2012

LIN28 protein can bind directly to thousands of messenger RNAs

A study led by researchers at the UC San Diego Stem Cell Research program and funded by the California Institute for Regenerative Medicine (CIRM) looks at an important RNA binding protein called LIN28, which is implicated in pluripotency and reprogramming as well as in cancer and other diseases.

6 Sep 2012

MicroRNA News and Research

Further Reading

microRNA-223 molecule plays a surprising role in protecting brain cells from stroke effects

Alnylam advances Tuschl II patent estate through the USPTO

MicroRNAs in ovarian cancer cells promote tumor growth

ALN RNAi therapeutic program represents novel approach for treatment of AAT deficiency

Alnylam third quarter 2012 revenues decrease to $16.8 million

Researchers discover how tamoxifen-resistant breast-cancer cells grow and proliferate

Genzyme, Alnylam partner to develop and commercialize RNAi therapeutics against ATTR

New insights into how miR-30d can promote healthy insulin production

GW professor to develop blood test for early detection of breast cancer

Inhibiting DUSP6 protein can restore immune cells’ responsiveness to a more youthful state

MiR-214 plays a critical role in regulating ovarian cancer stem cell properties

MicroRNA processing in fat tissue plays a major role in aging and stress resistance

U.S. District Court rules in favor of Alnylam in patent infringement case against Tekmira

Two tiny RNA molecules play a key role in pathological heart growth and failure

PAM50 potentially simplifies underlying breast tumor biology

Molecular similarity between one sub-type of breast cancer and ovarian cancer

MicroRNA-145 gene therapy can drastically reduce severity and progression of atherosclerosis

New findings establish connection between microRNAs and cellular metabolism

Alnylam announces complete results from ALN-RSV01 Phase IIb trial on RSV infection

LIN28 protein can bind directly to thousands of messenger RNAs

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