[Heterogeneity of cell population of lymphoma NK/Ly and leukemia L-1210 according to carbohydrate structure of cell surface: immunocytochemical analysis of lectin binding].

The heterogeneity of tumor cell populations according to binding of lectins from lentil (LcL), wheat germs (WGA), peanut (PNA) and concanavalin A was investigated on a model of murine Nemeth-Kellner lymphoma (NK/Ly) and leukemia L-1210. Bound lectins were detected by indirect immunochemical method using home obtained polyclonal antilectin antibodies and immunogold silver staining (IGSS) technique. Significant differences in binding of Con A were revealed between NK/Ly (67% Con A+) and L-1210 (7.2% Con A+) cells, while the differences in binding of other lectins with both types of tumor cells were not significant. A relatively high percentage of PNA+ cells was registered that can indicate a high degree of desialization of membrane glycoproteins.