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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Early regenerative responses induced by monoclonal antibodies directed against a surface glycoprotein of goldfish retinal ganglion cells.

Monoclonal antibodies directed primarily against antigenic determinants associated with the goldfish optic nerve were prepared and characterized. One selected clone 23-4-C(IgG2a), detected antigenic determinants of glycoprotein nature with an apparent mol. wt. of 140 000. Following injury the level of these molecules increased with a peak at 5-7 days after the lesion (2- to 3-fold higher than the basal level). The results strongly suggest that the increase derives, at least partially, from a real increment in the level of these molecules in the retinal ganglion cells rather than from changes in accessibility. Immunofluorescence studies indicate that the retinal ganglion cells carry the antigenicity. Intraocular injection of the monoclonal antibodies, concomitantly with crush injury, resulted in an earlier and higher regenerative response, reflected by sprouting capacity, protein synthesis and accumulation of radiolabeled material in the tectum contralateral to the side of injury. This may indicate that the antibodies directly activate retinal cells via interaction with surface molecules. Alternatively, the antibodies may be directed against surface molecules which are associated with axonal growth inhibitors, and may therefore mask these surface antigens from further interaction with their native substrate.[1]


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