title: Total and allergen-specific IgE in relation to allergic response pattern following bone marrow transplantation.
abstract: Total and allergen-specific serum IgE were measured in relation to allergic response pattern before and after bone marrow transplant (BMT) in seven sibling donor/recipient pairs. Two non-atopic recipients developed persistently raised total serum IgE levels but no apparent allergic response after BMT from non-atopic donors; three non-atopic recipients showed raised total serum IgE after BMT, with allergen-specific IgE to the same allergens as their respective atopic donors. A penicillin-tolerant recipient showed clinical sensitivity and specific IgE to penicillin after BMT from a penicillin-sensitive donor, but with this case both donor and recipient showed raised serum IgE levels. One atopic recipient showed decreased total IgE after BMT from a mildly atopic donor. These allergic response patterns could occur as a result of repopulation in the recipient with IgE-specific T lymphocytes having similar regulatory influences as in the donor. The pattern of acquired responses would also be consistent with reconstitution by primed B lymphocytes of donor origin.
mesh_terms: D000293:Adolescent; D000328:Adult; D000485:Allergens / Q000276:immunology; D016026:Bone Marrow Transplantation; D002648:Child; D002675:Child, Preschool; D000939:Epitopes / Q000276:immunology; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000276:immunology*; D007073:Immunoglobulin E / Q000032:analysis*; D007223:Infant; D008297:Male; D011852:Radioallergosorbent Test
chemical_list: D000485:Allergens; D000939:Epitopes; D007073:Immunoglobulin E