APPLICATION OF MONOCLONAL-ANTIBODIES AGAINST MAJOR BASIC-PROTEIN (BMK-13) AND EOSINOPHIL CATIONIC PROTEIN (EG1 AND EG2) FOR QUANTIFYING EOSINOPHILS IN BRONCHIAL BIOPSIES FROM ATOPIC ASTHMA

被引:91
作者
MOQBEL, R [1 ]
BARKANS, J [1 ]
BRADLEY, BL [1 ]
DURHAM, SR [1 ]
KAY, AB [1 ]
机构
[1] NATL HEART & LUNG INST,DEPT ALLERGY & CLIN IMMUNOL,DOVEHOUSE ST,LONDON SW3 6LY,ENGLAND
关键词
D O I
10.1111/j.1365-2222.1992.tb03082.x
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
A monoclonal antibody prepared against the eosinophil major basic protein (MBP) was compared with the anti-eosinophil cationic protein (ECP) antibodies (EG1 and EG2) in immunostaining of bronchial biopsies from atopic asthma and controls. Anti-MBP (designated BMK-13) did not cross-react with other eosinophil basic proteins (i.e. ECP, eosinophil peroxidase [EPO] or eosinophil-derived neurotoxin [EDN]) and stained more than 98% of peripheral blood eosinophils irrespective of their degree of activation. EG2 stained 15% of resting and 75% of activated eosinophils; EG1 recognized 74% and 78% of resting and activated cells, respectively. The numbers of BMK-13, EG1 or EG2-positive staining cells in bronchial biopsies from asthma were significantly greater than atopic non-asthmatics (P < 0.02, P < 0.01 and P < 0.05, respectively) and normal non-atopic controls (P < 0.001). For each of the various groups studied, the rank order for the number of eosinophils stained was BMK-13 > EG1 > EG2. BMK-13 stained significantly more cells from bronchial biopsies of atopic asthma and atopic non asthma when compared to EG2 (P < 0.001 and P < 0.05, respectively). Since only a proportion of BMK-13+ cells were EG2+, these results suggest that not all tissue eosinophils are actively secreting. Thus, BMK-13 can serve as a useful pan-eosinophil marker in tissue sections since it appears to stain most eosinophils.
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页码:265 / 273
页数:9
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