Fig. 6.
Neurite outgrowth by PC12 following PLG-mediated expression of NGF. PC12 incubated with PLG disks releasing (A) pRK5 lipoplexes or (B) pRK5-NGF lipoplexes. (C) Overlay of PC12 incubated with PLG disk releasing pCE-NGF, imaged by phase-contrast and fluorescence (appears white in overlay) microscopy. All micrographs were taken at 200× magnification and are representative of five random fields of view.