consistent with previous immunohistochemical results , extracts of t mast cells , the predominant mast cell type in lung ( 93 % t and 7 % tc mast cells ) , were deficient in human chymase ( less than 0.3 microgram and 0.04 u/10 ( 6 ) mast cells ) but not tryptase ( 10.8 micrograms and 0.3 u/10 ( 6 ) mast cells ) by corresponding immunologic and enzymatic ( suc-l-ala-ala-pro-phe-p-nitroanilide in the presence of aprotinin and tosyl-l-gly-pro-lys-p-nitroanilide in the presence of soybean trypsin inhibitor , respectively ) assays .
C0055673
chymase
C0024880
mast cells