Researchers at the California Institute of Technology have successfully developed new viral vectors to efficiently deliver genes to neurons along the body and across the blood-brain barrier. The researchers used an engineered viral vector, AAV-PHP.S, to label neurons covering the digestive tract with a combination of three different fluorescent proteins. The viruses reach their targets through the bloodstream and can be used to treat neural disorders.
Reference Link: https://www.sciencedaily.com/releases/2017/06/170626124424.htm