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  • Title: A newly described activity of guinea pig IgG1 antibodies: transfer of cutaneous basophil reactions.
    Author: Haynes JD, Rosenstein RW, Askenase PW.
    Journal: J Immunol; 1978 Mar; 120(3):886-94. PubMed ID: 344798.
    Abstract:
    Hapten-specific delayed time course skin reactions containing predominant accumulations of basophils and eosinophils were elicited in newborn guinea pigs after i.v. transfer of small amounts of oxazolone immune serum. The immune serum was fractionated by column chromatography procedures, and the fractions were examined for their ability in transferring this form of cutaneous basophil hypersensitivity (CBH). Only the 7S IgG-containing peak from Sephadex G-200 columns, and only the IgG1-containing fractions from DEAE columns, transferred CBH. An affinity column of bound oxazolone removed the activity from immune serum, and it could be recovered from the column by eluting with soluble oxazolone. About 35 microgram of purified IgG1 anti-oxazolone antibody could systemically transfer CBH reactivity. An immunoadsorbant column of anti-IgG1 removed this activity, but a column of anti-IgG2 did not. None of the procedures were able to separate activity in transferring CBH from passive cutaneous anaphylactic (PCA) activity classically associated with guinea pig IgG1 antibody. IgG1 from 8-day immune and 31-day hyperimmune donors were both effective. The average association constant of 8-day antibody was 8 X 10(-4) M-1. Transfer of cutaneous basophil reactions can be mediated by low affinity serum 7S IgG1 antibody.
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