Exosomes - Extracellular Vesicles for Brain Drug Delivery - Medical / Health Care

The delivery of therapeutical compounds such as RNA drugs into the brain presents the challenges of RNA preservation and the crossing of the blood brain barrier. Exosomes loaded with the specific siRNA sequences and marked with the neuron specific RVG peptide show specific accumulation in neurons, microglia and oligodendrocytes in the brain, effectively reducing genetic expression. This is a potential approach for brain diseases like Alzheimer, while reducing side effects due to unspecific tissue targeting.