PT - JOURNAL ARTICLE AU - Novogrodsky, Abraham TI - Induction of Lymphocyte Cytotoxicity by Modification of the Effector or Target Cells with Periodate or with Neuraminidase and Galactose Oxidase DP - 1975 Mar 01 TA - The Journal of Immunology PG - 1089--1093 VI - 114 IP - 3 4099 - http://www.jimmunol.org/content/114/3/1089.short 4100 - http://www.jimmunol.org/content/114/3/1089.full SO - J. Immunol.1975 Mar 01; 114 AB - Treatment of mouse spleen cells with periodate (NaIO4) or with neuraminidase and galactose oxidase (NAGO) induces blastogenesis and renders the cells cytotoxic to mastocytoma (P815) target cells. Treatment of target cells (P815 cells and turkey erythrocytes) with NaIO4 or with NAGO renders them susceptible to cytolysis by untreated mouse spleen cells. The cytotoxicity induced by NaIO4 is reduced upon reacting the NaIO4-treated, effector or target cells with borohydride or hydroxylamine. Thus the formation of free surface aldehydes on either the effector or target cell induced a cytotoxic effect. It is postulated that cross-linkage via a Schiff base between effector and target cell initiates the cytotoxic effect. Cytotoxicity induced by NaIO4 or NAGO is immunologically nonspecific and is independent of major antigenic differences between effector and target cells. Phagocytic cells are not involved in NaIO4-or NAGO-induced cytotoxicity toward P815 target cells.