CNS	central nervous system
RVG	rabies virus glycoprotein
DDS	drug delivery system
BBB	blood-brain barrier
AAV	adeno-associated virus
EVs	extracellular vesicles
MPS	mononuclear phagocytic system
PEG	polyethylene glycol
ABC	acceleration of blood clearance
CSF	cerebrospinal fluid
MSC	mesenchymal stem cell
SCI	spinal cord injury
TBI	traumatic brain injury
MS	multiple sclerosis
EAE	experimental allergic encephalomyelitis
RES	reticuloendothelial system
PD	Parkinson’s disease
AD	Alzheimer’s disease