Affinity purified immunoglobulin G transfers immediate hypersensitivity to guinea pig colonic epithelium in vitro.

Affinity purified immunoglobulin G transfers immediate hypersensitivity to guinea pig colonic epithelium in vitro.
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亲和纯化的免疫球蛋白 G 在体外将立即超敏反应转移至豚鼠结肠上皮。

DOI:
10.1016/0016-5085(87)90011-4
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发表时间:
1987
期刊:
影响因子:
29.4
通讯作者:
Cuthbert,AW
Cuthbert,AW
中科院分区:
医学1区
文献类型:
--
作者:
Baird,AW;Barclay,WS;Blazer-Yost,BL;Cuthbert,AW

文献摘要

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我们的目的是确定上皮 1 型过敏反应对饮食抗原的反应(正如我们之前所描述的)是否具有免疫学基础。使用来自用牛奶蛋白喂养的豚鼠的血清,我们检查了对 β-乳球蛋白敏感性的被动转移。使用生物物理方法来测量结肠上皮细胞的生电氯化物分泌。先前已证明这种反应是抗原攻击后细胞功能发生改变的结果。使用亲和柱色谱将免疫血清分离成富含免疫球蛋白 G-(IgG) 和缺乏免疫球蛋白 G 的级分,并确定这些级分的纯度。富含免疫球蛋白 G 的组分可能会被动转移敏感性,但缺乏免疫球蛋白 G 的组分则不然。因此,我们已经证明该反应至少部分是由 G 类免疫球蛋白介导的。这一发现可能对食物过敏现象的研究有影响。
Our aim was to establish whether the epithelial type 1 hypersensitivity reaction in response to a dietary antigen, as we have previously described, had an immunologic basis. Using serum from guinea pigs fed with milk proteins we examined the passive transfer of sensitivity to β-lactoglobulin. Biophysical methods were used to measure electrogenic chloride secretion across colonic epithelia. This response has been shown previously to be the cellular function that is altered after antigen challenge. Affinity column chromatography was used to separate immune serum into immunoglobulin G-(IgG)-rich and immunoglobulin G-depleted fractions and the purity of these fractions was established. Passive transfer of sensitivity was possible with the immunoglobulin G-rich, but not the immunoglobulin G-depleted, fraction. We have proven, therefore, that the reaction is mediated, at least in part, by immunoglobulins of the G class. This finding may have implications for the study of phenomena of food allergy.
DOI: 10.1016/0092-8674(82)90010-1
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