Optic nerve tissue sections derived from myelin-deficient mutant mice as culture substrata for fibroblast adhesion and spreading.
The substrate properties were compared between normal and myelin-deficient central nervous system (CNS) tissues by an in vitro assay of cell attachment and spreading. Fibroblasts (3T3) were plated onto culture substrata consisting of optic nerve tissue sections cut from normal or two myelin-deficient mutant mice, Shiverer and Quaking. Optic nerve sections from either of the mutant animals supported more 3T3 fibroblast spreading and adhesion than sections derived from animals with normal myelin. These results demonstrate that CNS myelin influences the ability of cells to attach and spread and that it is the actual presence of myelin which is inhibitory rather than the presence of optic nerve axons or oligodendrocytes.
Kljavin, IJ; Madison, RD; Reh, TA
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