because a significant fraction of il1 beta may be secreted from monocytes as the inactive 31-kda precursor ( hazuda , d. j. , lee , j. c. , and young , p. r. ( 1988 ) j. biol . chem . 263 , 8473-8479 , bomford , r. , absull , e. , hughes-jenkins , c. , simpkin , d. , and schmidt , j . ( 1987 ) immunology 62 , 543-549 , and mizel , s. b . ( 1988 ) in cellular and molecular aspects of inflammation poste , g. , and crooke , s. , eds ) pp .
C1327616
secreted
C0007634
cellular