Mirus Bio has introduced the TransIT-X2 dynamic delivery system.
According to the company, the polymeric nucleic acid-delivery system can be used for independent or simultaneous delivery of DNA and siRNA to a variety of cell types.

Arrowhead Research's top executive this week broke out details on the company's efforts to move its RNAi-based hepatitis B virus treatment ARC-520 into the clinic, stating that the firm will run two phase I trials in order to speed up the generation of key human data.

Arrowhead Research last week released new preclinical data on its lead drug candidate, the hepatitis B virus treatment ARC-520, reporting that the agent could trigger up to multi-log reductions in the levels of circulating viral antigens, while lowering levels of the virus' repli

Arrowhead Research announced this week that it has signed a RNAi services agreement with Germany's Axolabs, bringing together the US and European halves of Roche's former RNA therapeutics operations that were divested by the biopharmaceutical giant in 2010.

Under a proposed spending bill, the US National Institutes of Health would see an additional $3 billion in funding.

Researchers from the University of Oxford and the University of Sydney sequenced numerous platypus genomes to study their population history.

Robert Redfield, the new pick to lead the US Centers for Disease Control and Prevention, has faced criticism for some of his work.

In Nature this week: sequenced genomes of five additional Neanderthals, and more.