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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Regulation of murine contact sensitivity to urushiol components by serum factors.

Mice epicutaneously painted with components of poison ivy urushiol oil exhibit contact sensitivity (as detected by ear swelling reactions) that persist for about 25 days. Sera taken from mice at times when the contact sensitization response is waning suppressed the induction of sensitization to 3-n-pentadecylcatechol (PDC), a urushiol component, in recipients. The suppressive serum factor was present in greatest amount 25 days after sensitization, but was no longer detectable 40 days post sensitization. Suppression was antigen-specific, absorbed out with PDC-immune, but not normal lymph node cells, and transferable with a single 0.6 ml dose 7 days prior to sensitization of recipients. Suppression was transferable by the purified IgG fraction of desensitized mice. Results indicate that contact sensitivity to urushiol in mice is regulated by serum factors.[1]


  1. Regulation of murine contact sensitivity to urushiol components by serum factors. Dunn, I.S., Liberato, D.J., Stampf, J.L., Castagnoli, N., Byers, V.S. J. Invest. Dermatol. (1987) [Pubmed]
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