Journal of Neuroscience, Vol 3, 1488-1494, Copyright © 1983 by Society for Neuroscience
Pressure microinjection of nerve growth factor and anti-nerve growth factor into the nucleus and cytoplasm: lack of effects on neurite outgrowth from pheochromocytoma cells
PJ Seeley, CH Keith, ML Shelanski and LA Greene
Exogenous proteins have been introduced into naive and nerve growth factor
(NGF)-primed pheochromocytoma cells by pressure microinjection.
Microinjection of cells did affect NGF-induced neurite outgrowth by these
cells over periods of up to 3 days. Injected NGF failed to elicit neurite
outgrowth or regeneration in the absence of extracellular NGF and failed to
enhance it in its presence. Injected anti-NGF IgG failed to inhibit neurite
outgrowth or regeneration induced by extracellular NGF. Similar results
were obtained for both nuclear and cytoplasmic injections.