Ian MacLachlan

TL;DR: The best-performing lipid recovered after screening (DLin-KC2-DMA) was formulated and characterized in SNALP and demonstrated to have in vivo activity at siRNA doses as low as 0.01 mg/kg in rodents and 0.1 mg/ kg in nonhuman primates, a substantial improvement over previous reports of in vivo endogenous hepatic gene silencing.

TL;DR: It is shown that siRNAs, when delivered systemically in a liposomal formulation, can silence the disease target apolipoprotein B in non-human primates, supporting RNAi therapeutics as a potential new class of drugs.

TL;DR: The advances demonstrated here, including persistence of in vivo activity, use of lower doses and reduced dosing frequency are important steps in making siRNA a clinically viable therapeutic approach.

TL;DR: It is reported that synthetic siRNAs formulated in nonviral delivery vehicles can be potent inducers of interferons and inflammatory cytokines both in vivo in mice and in vitro in human blood.

TL;DR: It is shown that immune stimulation by synthetic siRNA can be completely abrogated by selective incorporation of 2'-O-methyl (2'OMe) uridine or guanosine nucleosides into one strand of the siRNA duplex, enabling therapeutically viable siRNA doses without cytokine induction, toxicity, or off-target effects associated with the use of unmodified siRNA.