AIT-082 is a novel, metabolically stable, derivative of the purine hyp
oxanthine. Addition of AIT-082 to cultured PC12 cells enhanced signifi
cantly nerve growth factor (NGF)-mediated neurite outgrowth from PC12
cells. These results suggest a cellular mechanism, the enhancement of
NGF-action, that might account for the ability of AIT-082 to restore a
ge-induced working memory deficits in mice.