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IgE 抗体产生中的抗原竞争。I. 初次和二次反应相关参数的确定。

Antigenic competition in IgE antibody production. I. Establishment of parameters involved in primary and secondary responses.

作者信息

de Macedo M S, Mota I

出版信息

Immunology. 1980 Aug;40(4):701-8.

Abstract

Antigenic competition was demonstrated in IgE antibody response in mice immunized with ovalbumin or DNP-ovalbumin associated with several non-related proteins: DNP-Ascaris, DNP-keyhole limpet haemocyanin or Ascaris. Simultaneous injection of two antigens caused a suppression of IgE antibody production to the test antigen, IgG1 antibody formation being only diminished under certain conditions. Competition was dose-dependent and effective only in the primary response. However, the secondary response could be also partially suppressed if the competitor antigen was given in both first and second antigenic stimulation. Competition was abolished by irradiation prior to immunization.

摘要

在用卵清蛋白或与几种无关蛋白质相关的二硝基苯基卵清蛋白(DNP-卵清蛋白)免疫的小鼠的IgE抗体反应中证实了抗原竞争:二硝基苯基蛔虫(DNP-蛔虫)、二硝基苯基钥孔戚血蓝蛋白或蛔虫。同时注射两种抗原会导致针对测试抗原的IgE抗体产生受到抑制,只有在某些条件下IgG1抗体形成才会减少。竞争是剂量依赖性的,并且仅在初次反应中有效。然而,如果在初次和第二次抗原刺激中都给予竞争抗原,二次反应也可能被部分抑制。免疫前照射可消除竞争。

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