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. 1978 Mar;34(3):549–553.

The distribution of antigen in flare up reaction in contact sensitivity to DNCB.

S Fukushiro, S Nakagawa, M Gotoh, M Koshizawa, K Tanioku
PMCID: PMC1457597  PMID: 640719

Abstract

The distribution of DNP groups in various tissues of guinea-pigs following intravenous injection of DNBSO3Na was investigated by an immunofluorescent method using FITC-labelled anti-DNP antibody. DNP groups were detected either in the cytoplasms of epidermal cells or on/in lymphoid tissue cells. The epidermal distribution of DNP groups was shown in the skin obtained from 5 min to 3 days after injection. There was no fundamental difference in the epidermal localization of DNP groups between at the previously tested site and at virgin site in DNCB sensitized animals. Unreacted DNBSO3Na was demonstrated in the blood plasma of DNBSO3Na injected animals. The injection of either DNP-lysine or 2,4-dinitrophenol was found incapable of inducing flare up reaction and no epidermal localization of DNP groups in the sensitized animals was observed. A possibility that intravenously injected DNBSO3Na forms a complete antigen by conjugation with epidermal proteins and sensitized cells, which have been indicated by Polak, Turk & Frey (1973) to remain at the site of old contact reaction, react with the antigen resulting in flare up reaction, is suggested.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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