The study of herpes virus biology has produced two vector delivery str
ategies which exploit the highly evolved neuronal tropism and life cyc
le regulation exhibited by this class of viruses. Amplicon and recombi
nant herpes simplex virus systems show promise for use in gene transfe
r to the nervous system and although neither Vector has been used in c
linical trials to date, their application to gene delivery and perturb
ation of neuronal physiology have been well established. We will revie
w the properties of the herpes amplicon system, and demonstrate its ut
ility in neuroscience applications. (C) 1997 Elsevier Science B.V.