y-1 adrenal tumor cells were grown on plastic , or plastic treated with poly ( 2-hydroxyethyl methacrylate ) ( polyhema ) to produce concentration-dependent rounding ( 10 ( -5 ) -3 x 10 ( -4 ) m ) of the cells or on plastic treated with poly-d-lysine ( polylysine ) to produce flat cells , in order to determine whether or not cell shape is correlated with steroid synthesis .
C0024337
lysine
C0032518
polylysine