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.

NanoString closes $20M Series D round of equity financing

NanoString Technologies, Inc., a privately held provider of life science tools for translational research and developer of molecular diagnostics, today announced that it has closed $20 million in a Series D round of equity financing.

From NanoString Technologies 7 Nov 2011

New data from Santaris Pharma miravirsen Phase 2a trial on HCV

Santaris Pharma A/S, a clinical-stage biopharmaceutical company focused on the discovery and development of RNA-targeted therapies, presents new data from the Phase 2a trial showing that miravirsen given as a four-week monotherapy treatment provided robust dose-dependent anti-viral activity with a mean reduction of 2 to 3 logs from baseline in HCV RNA (log10 IU/mL) that was maintained for more than four weeks beyond the end of therapy.

6 Nov 2011

MicroRNAs may predict risk of recurrence in post-resection gastric cancer patients

Rosetta Genomics, Ltd., a leading developer and provider of microRNA-based molecular diagnostics, announces that results from a joint study by researchers at the Institutes of Oncology, Davidoff Center, Rabin Medical Center, Beilinson Hospital and Golda-Hasharon Hospital in Petach-Tikva, Israel show that in post-resection gastric cancer patients microRNAs may serve to predict the risk of recurrence.

4 Nov 2011

Asuragen announces data from microRNA biomarker study on pancreatic cancer

Asuragen, Inc. announced today that data from a collaborative study with Johns Hopkins regarding microRNA biomarkers for use on pancreatic cyst fluid specimens was presented at the American Pancreatic Association Annual Meeting being held November 2-5, 2011 in Chicago.

4 Nov 2011

GSK, Alnylam collaborate to apply VaxiRNA technology for influenza vaccine production

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today it has formed a collaboration with GlaxoSmithKline (GSK) focused on Alnylam's VaxiRNATM technology for certain GSK vaccine products, including influenza. VaxiRNA is a new RNAi technology for the enhanced production of viruses used in the manufacture of vaccine products. GSK, a leading vaccine manufacturer, is the first company to form a collaboration accessing this new platform.

2 Nov 2011

JDR publishes 'MicroRNA Modulation in Obesity and Periodontitis' study

In a study titled "MicroRNA Modulation in Obesity and Periodontitis," lead author Romina Perri, University of North Carolina School of Dentistry, Oral Health Institute, conducted a pilot investigation to determine whether obesity or periodontal disease modified microRNA expression and whether there was any potential interaction between obesity and periodontitis that could involve microRNA modulation.

1 Nov 2011

Asuragen introduces ARQ IS Calibrator Panels to improve BCR-ABL1 testing for CML

Asuragen, Inc. announced today that it has commercially launched the ARQ IS Calibrator Panels (RUO), intended to aid laboratories with standardization of BCR-ABL1 quantitative measurements on the International Scale.

31 Oct 2011

New drug could combat cardiovascular disease

A new therapy being studied in non-human primates by researchers at Wake Forest Baptist Medical Center and colleagues is demonstrating promise as a potential tool for combating cardiovascular disease by increasing good cholesterol and lowering triglycerides in the blood.

29 Oct 2011

Mirna, Silence enter agreement to assess delivery systems for novel microRNAs

Silence Therapeutics plc, a leading RNA interference (RNAi) therapeutics company, today announced that it has entered into an agreement with Mirna Therapeutics Inc., a biopharmaceutical company pioneering microRNA-based therapeutics for cancer, to assess the delivery capabilities of Silence's proprietary AtuPLEX and DBTC delivery systems for Mirna's novel microRNAs.

24 Oct 2011

Inhibition of miR-33a/b suppresses triglyceride levels, increases HDL-C cholesterol

Researchers at NYU Langone Medical Center today announce findings published in the October 20 issue of Nature that show for the first time the inhibition of both microRNA-33a and microRNA-33b (miR-33a/b) with chemically modified anti-miR oligonucleotides markedly suppress triglyceride levels and cause a sustained increase in high density lipoprotein cholesterol (HDL-C) "good" cholesterol.

21 Oct 2011

Scientists uncover vast new gene regulatory network linked with cancer

Researchers at Columbia University Medical Center (CUMC) and two other institutions have uncovered a vast new gene regulatory network in mammalian cells that could explain genetic variability in cancer and other diseases.

15 Oct 2011

Scientisits uncover evidence of powerful new cancer genetic networks

In findings with major implications for the genetics of cancer and human health, researchers at Beth Israel Deaconess Medical Center (BIDMC) and two other science teams in New York City and Rome have uncovered evidence of powerful new genetic networks and showed how it may work to drive cancer and normal development.

14 Oct 2011

Study: miR-34b gene associated with aggressive form of melanoma

A certain microRNA gene, miR-34b, could be a useful biomarker in early diagnosis of the most lethal forms of melanoma, according to new research published by KGI Professor Animesh Ray and his research collaborators.

14 Oct 2011

NanoString introduces nCounter Analysis System

NanoString Technologies, Inc., a privately held provider of life science tools for translational research and developer of molecular diagnostics, today announced the launch of its second generation nCounter Analysis System.

From NanoString Technologies 13 Oct 2011

MicroRNA-101 can block autophagy in cancer cells

All cells in our body have a system that can handle cellular waste and release building blocks for recycling. The underlying mechanism is called autophagy and literally means "self-eating". Many cancer cells have increased the activity of this system and the increased release of building blocks equip the cancer cells with a growth advantage and can render them resistant towards treatment.

10 Oct 2011

Lipomannan on TB bacterium's outer cell surface can block TNF production

The bacterium that causes tuberculosis has a unique molecule on its outer cell surface that blocks a key part of the body's defense. New research suggests this represents a novel mechanism in the microbe's evolving efforts to remain hidden from the human immune system.

4 Oct 2011

Santaris Pharma to report new clinical data from miravirsen Phase 2a study on HCV

Santaris Pharma A/S, a clinical-stage biopharmaceutical company focused on the discovery and development of microRNA and mRNA-targeted therapies, today announced the Company will report new clinical data results from the miravirsen Phase 2a proof-of-concept study to treat patients infected with the Hepatitis C virus (HCV) in a late-breaking oral presentation session at the American Association for the Study of Liver Diseases (AASLD) 2011 annual meeting.

4 Oct 2011

Lin28/let-7 pathway plays an unexpected key role in type 2 diabetes

A pathway activated in cancer plays an unexpected key role in metabolic diseases like type 2 diabetes, according to a study by researchers at Children's Hospital Boston. Evidence that the Lin28/let-7 pathway influences the cellular response to glucose provides a unifying theme to perplexing data that associates human genetic variation with diabetes risk.

30 Sep 2011

X-chromosome related microRNA may impact immunity and cancer

As anyone familiar with the phrase 'man-flu' will know women consider themselves to be the more robust side of the species when it comes to health and illness. Now new research, published in BioEssays, seems to support the idea. The research focuses on the role of MicroRNAs encoded on the X chromosome to explain why women have stronger immune systems to men and are less likely to develop cancer.

28 Sep 2011

Asuragen announces data from Signature LTx v2.0 clinical study on leukemia

Asuragen, Inc. announced today that data from a study evaluating its Signature LTx v2.0, a CE-marked IVD test, for the multiplex detection of fusion transcripts associated with ALL, AML and CML leukemia, will be presented at the upcoming Planet XMAP Europe being held September 28 - 29, 2011 in Vienna, Austria.

27 Sep 2011