NEW YORK (GenomeWeb) – A team led by researchers from the Massachusetts Institute of Technology this week published a study describing a new type of nanoparticle capable of delivering siRNAs to endothelial cells, while dodging hepatocytes and immune cells, at doses far lower than previously required.

The siRNA-loaded nanoparticles were also able to mediate highly durable non-liver gene silencing, further opening the door for RNAi as a therapeutic modality in diseases such as cancer and emphysema.

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In PNAS this week: Akt3 amplification in glioma progression, Tibetan Plateau frog genome, and more.

The US Supreme Court has declined to review a decision involving the use of "inadvertently shed" DNA in a police investigation and subsequent conviction.

A panel at the New York Times discusses anonymity and privacy of users of 23andMe's services when access to its database is offered for research.

National Institutes of Health Director Francis Collins appears before a House subcommittee to discuss his agency's budget request.