Abstract: The present invention relates to methods and kits for the detection, isolation and quantification of apoptotic cells based on the apoptotic cells' increased expression of alpha-D-mannose and/or beta-D-galactose containing glycoproteins. Lectins that bind to alpha-D-mannose and beta-D-galactose-rich glycoconjugates are used in the methods and kits for agglutination tests for the detection, isolation and quantification of apoptotic cells. Lectins may be used to stimulate the agglutination of cells and apoptosis may be detected by assessing the concentration of lectins required to agglutinate a cell population and comparing the concentration to predetermined values for intact cells and cells in various stages after induction of apoptosis.