upon interaction with the tumor cell chemotactic factor derived from zymosan-activated serum or with the synthetic chemotactic factor , formylmethionyl-leucyl-phenylalanine ( f-met-leu-phe ) , the number of walker 256 carcinosarcoma cells in suspension dropped as measured by a coulter counter .
C0008013
chemotactic factor
C0027229
formylmethionyl-leucyl-phenylalanine