Journal of Neuroscience, Vol 11, 327-336, Copyright © 1991 by Society for Neuroscience
A growth factor from neuronal cell lines stimulates myelin protein synthesis in mammalian brain
D Giulian, B Johnson, JF Krebs, MJ Tapscott and S Honda
Department of Neurology, Baylor College of Medicine, Houston, Texas 77030.
Oligodendroglia growth factor (OGF) is a 16-kDa soluble protein produced by
neuronal cell lines. This factor, when incubated with brain glia in
culture, selectively stimulates growth of oligodendroglia, the
myelin-producing cells of the CNS. OGF infused into the cerebral cortex of
the adult rat accelerates the production of myelin proteins as shown by
increased specific activity of the myelin enzyme 2',3'-cyclic nucleotide
3'-phosphohydrolase (2',3'-CNPase), by stimulated synthesis of myelin basic
protein, and by elevations in levels of myelin proteolipid protein RNA. The
ability of OGF to induce myelin protein production in vivo suggests that
neuron-secreted growth factors help to regulate myelin formation within the
CNS.