Regulation of antigen-specific versus by-stander IgE production after antigen sensitization

被引：16

作者：

Shang, XZ ^{[1
]}

Armstrong, J ^{[1
]}

Yang, GY ^{[1
]}

Volk, A ^{[1
]}

Li, J ^{[1
]}

Griswold, DE ^{[1
]}

Emmell, E ^{[1
]}

Li, L ^{[1
]}

机构：

[1] Centocor Inc, Malvern, PA 19355 USA

来源：

CELLULAR IMMUNOLOGY | 2004年 / 229卷 / 02期

关键词：

IgE; allergy; IL-4; IL-13;

D O I：

10.1016/j.cellimm.2004.06.007

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

IgE is critical in the pathogenesis of allergic disorders. In this report, we investigated the differential regulation of antigen-specific and by-stander IgE. Ovalbumin (OVA) immunization did not increase IgE producing cells in the spleen, but significantly enhanced the intracellular IgE content of all IgE(+) cells. In contrast, OVA induced a significant increase of IgE(+) cells in the draining lymph nodes (LN). Furthermore, OVA-specific IgE was detected only in the ex vivo cultures of the draining LN but not the spleen cells, while total IgE was increased in both cultures. These results indicated that antigen-specific IgE was mainly produced in the draining LN, while the spleen was a major source for by-stander IgE. Anti-IL-4, but not anti-IL-13, antibody blocked the expansion of IgE producing cells in the draining LN as well as systemic OVA-specific and total IgE levels, indicating IL-4 was important in both antigen-specific IgE generation and total IgE upregulation (C) 2004 Elsevier Inc. All rights reserved.

引用

页码：106 / 116

页数：11

共 36 条

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