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Veterinary Pathology, Vol 17, Issue 4 477-489, Copyright © 1980 by American College of Veterinary Pathologists

ARTICLES

[Antigenicity of a chemically induced neurogenic rat sarcoma (author's transl)]

H. Elling and D. Stavrou

A neurogenic sarcoma was induced in the plexus brachialis of a male Long-Evans rat by administration of N-methyl-N-nitrosourea in the drinking water. The tumor was established in vitro and designated 76LE-NS-369. Cells from tissue culture grew as tumors when isografted in young rats. 76LE-NS-369 cells did not react with antiserum directed against gliaspecific S-100 protein. We used the cultured cells as target cells, and found specific antibodies in the sera of tumor-bearing and immunized rats by indirect fluorescent antibody stain and a complement-dependent antibody-mediated microcytotoxicity assay. In immunization experiments, incubation of tumor cells with Vibrio cholerae neuraminidase yielded higher antibody titers than an antigen preparation with untreated cells. Incubation with neuraminidase enhanced the sensitivity of tumor cells to antibody and complement in vitro, whereas trypsinized cells showed complete loss of reactivity with autologous antisera. The specificity of antisera was tested by absorption with tumor, lyophilized rat whole body and rat nerve tissues.




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Copyright © 1980 by the American College of Veterinary Pathologists.