Progress and perspectives on targeting nanoparticles for brain drug delivery

Due to the ability of the blood brain bather (BBB) to prevent the entry of drugs into the brain, it is a challenge to treat central nervous system disorders pharmacologically. The development of nanotechnology provides potential to overcome this problem. In this review, the bathers to brain-targeted drug delivery are reviewed, including the BBB, blood brain tumor bather (BBTB), and nose-to-brain bather. Delivery strategies are focused on overcoming the BBB, directly targeting diseased cells in the brain, and dual-targeted delivery. The major concerns and perspectives on constructing brain-targeted delivery systems are discussed. (C) 2016 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V.