[Slide test for immunofluorescent microscopy and immunoenzyme detection of cell-membrane antigens].

Poly-dimethyl-diallyl-ammoniumchloride - coated glass slides cause a strong adherence of living cells in consequence of electrostatic interactions. Immunological reactions of adherent cells - we used immunofluorescence and immunoperoxidase techniques to demonstrate membrane antigens - are not impaired. The slide test is suitable for routine quantitation of B and T cells in the peripheral blood and for the selection of hybridoma antibodies against cellular antigens. The slide test is time saving and needs minimal volumes of cells and antisera.