when these tumor cells are pretreated at 37 degrees with 10 ( -4 ) to 10 ( -11 ) m concentrations of the polypeptide hormone insulin , with the catecholamine l-epinephrine-hcl , or with the glucocorticoid steroids hydrocortisone sodium succinate or prednisolone sodium succinate , the cells show a marked reduction in their suseptibility to killing by antibody and guinea pig complement ;
C0007412
catecholamine
C0001636
epinephrine-hcl