a representative collection of animal cells ( ranging from normal human diploid cell strains to highly tumorigenic clonal cell lines , either transformed in vitro or derived from experimental tumors ) was tested to see if the ability of cells to form tumors is consistently correlated with their susceptibility to nk cell-mediated lysis measured in vitro with splenic leukocytes from nude mice .
C0027659
experimental tumors
C0027651
tumors