changes in the fluorescence intensity of the dye 3-3 ' dipentyloxacarbocyanine were measured in suspensions of purified human peripheral blood polymorphonuclear leukocytes ( pmns ) during exposure to the chemotactic factors n-formyl-methionyl-leucyl-phenylalanine ( f-met-leu-phe ) and partially purified c5a .
C0008013
chemotactic factors
C0027229
formyl-methionyl-leucyl-phenylalanine