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.

Isis, Genzyme submit European MAA for mipomersen to treat familial hypercholesterolemia

Genzyme, a Sanofi company, and Isis Pharmaceuticals Inc. today announced that Genzyme has submitted a marketing authorization application (MAA) to the European Medicines Agency seeking approval for the 200 mg weekly dose of mipomersen for the treatment of homozygous and severe heterozygous familial hypercholesterolemia.

28 Jul 2011

New preclinical data suggests microRNA-15 inhibits cardiomyogenesis

miRagen Therapeutics, Inc., a biopharmaceutical company focused on improving patients' lives by developing innovative microRNA (miRNA)-based therapeutics for cardiovascular and muscle disease, announced today that new preclinical data published in the online edition of Circulation Research suggests that microRNA-15 (miR-15) inhibits cardiomyogenesis, the process whereby new heart muscle cells are formed.

27 Jul 2011

'Core-shell' nanoparticles for effective intracellular delivery of RNAi therapeutics

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, together with collaborators at the Massachusetts Institute of Technology (MIT), announced today the publication of new paper describing discovery of "core-shell" nanoparticles for systemic delivery of RNAi therapeutics.

26 Jul 2011

Identification of third microRNA target triggers milestone payment from GSK to Regulus

Regulus Therapeutics Inc., a biopharmaceutical company leading the discovery and development of innovative medicines targeting microRNAs, today announced that it has identified a third microRNA target in its alliance with GlaxoSmithKline (GSK), triggering a preclinical milestone payment from GSK.

21 Jul 2011

USPTO issues patent for Mirna's tumor suppressor microRNAs

Mirna Therapeutics, Inc. announced today that the United States Patent and Trademark Office has allowed multiple patent claims related to the therapeutic application of several tumor suppressor microRNAs.

21 Jul 2011

Specific miRNAs play a key role in melanoma metastasis

Researchers at the NYU Cancer Institute, an NCI-designated cancer center at NYU Langone Medical Center, identified for the first time the key role specific microRNAs play in melanoma metastasis to simultaneously cause cancer cells to invade and immunosuppress the human body's ability to fight abnormal cells.

12 Jul 2011

Alnylam seeks CTA clearance to initiate ALN-PCS Phase I clinical trial for severe hypercholesterolemia

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, announced today that it has filed a Clinical Trial Application (CTA) with the Medicines and Healthcare products Regulatory Agency (MHRA) to initiate a Phase I clinical trial with ALN-PCS, an RNAi therapeutic for the treatment of severe hypercholesterolemia.

11 Jul 2011

Nature journal publishes landmark genetic study of ovarian cancer

A University of Houston researcher is an author on a landmark multi-institutional genetic study of the most aggressive and common form of ovarian cancer that is published in the current issue of the scientific journal Nature.

11 Jul 2011

Understanding glioblastoma at the genetic, molecular level

Glioblastoma is the most common and most lethal form of brain tumor in people. Research published in the International Journal of Computational Biology and Drug Design offers a novel way to determine what biological functions go awry when the tumor first begins to form.

7 Jul 2011

Alpha-tocotrienol protects brain cells after stroke in three ways

A natural form of vitamin E called alpha-tocotrienol can trigger production of a protein in the brain that clears toxins from nerve cells, preventing those cells from dying after a stroke, new research shows.

6 Jul 2011

Researchers discover crucial role of miR-206 in skeletal muscle development

Research led by the University of East Anglia has discovered the crucial role of a molecule in skeletal muscle development.

5 Jul 2011

Sensitivity of bladder cancer cells linked to chemotherapy and expression of miR-34a gene

Researchers at the UC Davis Cancer Center have discovered a way of sensitizing muscle-invasive bladder cancer cells so that they succumb to the toxic effects of chemotherapy. The finding adds to mounting evidence that tiny strands of RNA - called microRNA - play key roles in some of the deadliest types of cancer.

30 Jun 2011

Genomic study identifies MCU that regulates calcium transport into mitochondria

Alnylam Pharmaceuticals, Inc., a leading RNAi therapeutics company, and collaborators at Massachusetts General Hospital (MGH), the Broad Institute, and the David H. Koch Institute for Integrative Cancer Research at the Massachusetts Institute of Technology (MIT), today announced new findings published in Nature.

20 Jun 2011

ISSCR honors UCSF cancer scientist with 2011 Outstanding Young Investigator Award

UCSF's Robert Blelloch, MD, PhD, has received the 2011 Outstanding Young Investigator Award from the International Society for Stem Cell Research, for his pioneering research on the role of molecular tools known as microRNAs in embryonic stem cells and cancer.

16 Jun 2011