Relation between weak HLA-DR expression on human breast milk macrophages and cow milk allergy (CMA) in suckling infants

被引：16

作者：

Järvinen K.-M. ^{[1
]}

Juntunen-Backman K. ^{[2
]}

Suomalainen H. ^{[1
,3
]}

机构：

[1] Department of Dermatology, Helsinki University Central Hospital, Helsinki

[2] Department of Allergology, Helsinki University Central Hospital, Helsinki

[3] Helsinki University Central Hospital, Skin Allerg. Hosp./Dept. Dermatol., FIN-00029 HUCH, Helsinki

来源：

Pediatric Research | 1999年 / 45卷 / 1期

关键词：

D O I：

10.1203/00006450-199901000-00013

中图分类号：

学科分类号：

摘要：

The precise role of breast milk leukocytes is unknown. We therefore studied the cellular composition of breast milk and the activation of breast milk macrophages in mothers with a cow milk-allergic infant and in those with a healthy infant. Further, we sought to determine the influence of the cellular composition of mother's milk on the infant's risk of developing cow milk allergy. Thirty-six asymptomatic mothers (26 with atopic constitution) whose babies had challenge-proven cow milk allergy and 24 asymptomatic mothers (17 with atopic constitution) with healthy infants were recruited. Geometric mean ages of the infants were 3.2 mo (95% confidence interval [CI], 2.3 to 4.4) and 2.4 mo (95% CI, 1.6 to 3.7), respectively. After separation of the fat layer, breast milk cells were incubated with fluorescein-labeled MAb to CD antigens (CD14, 45, 3, 4, 8, 19, 23, and HLA-DR) and analyzed by flow cytometry. Breast milk samples, collected with a breast pump, were processed immediately. Cytospin preparations of milk samples, made after separation of the fat layer, were stained with May-Grunwald-Giemsa and examined with a light microscope. HLA-DR expression on breast milk macrophages was significantly lower in the mothers whose infant was allergic to cow milk, 58.3% (95% CI, 44.9 to 75.6), than in the mothers of a healthy infant, 86.9% (95% CI, 78.7 to 96.l), p = 0.012 (ANOVA). There was also a significant difference in the total number of breast milk leukocytes between the mothers with an allergic child, 0.17 x 106/mL (95% CI, 0.12 to 0.25), and those with a healthy child, 0.08 x 106/mL (95% CI, 0.05 to 0.14), p = 0.019 (Mann-Whitney U test). These results suggest impaired function of breast milk macrophages in mothers whose infants had cow milk allergy. They may also reflect decreased antigen presentation to the inexperienced T cells in the gut or on other mucosal surfaces of the suckling infant, leading to subsequent development of food or respiratory allergies, e.g. asthma.

引用

页码：76 / 81

页数：5

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