we found that treatment of neutrophils with ( i ) the chemotactic peptide n-formyl-methionyl-leucyl-phenylalanine , ( ii ) zymosan activated serum , ( iii ) supernatant fluid from a mixed leucocyte culture , or ( iv ) supernatant fluid from human leucocytes cultured with phytohaemagglutinin produced a dose-dependent increase in cr3 density .
C0023516
leucocytes
C0079785
cr3