Abstract:
:Shellfish allergy affects approximately 2% of the population and can cause immediate hypersensitivity reactions such as urticaria, swelling, difficulty breathing, and, in some cases, anaphylaxis. Tropomyosin is the major shrimp allergen and binds IgE in two-thirds of patients. A total of 38 shrimp-allergic patients and 20 negative control subjects were recruited and evaluated on the basis of history, skin prick testing, specific immunoglobulin E (IgE) levels, and peripheral blood mononuclear cell proliferation in response to shrimp tropomyosin or shrimp tropomyosin-derived peptides. Of the classically allergic patients by history, 59% tested positive for serum shrimp IgE antibodies. Of patients with shrimp-specific IgE in sera, 70% also had significant IgE levels specific for shrimp tropomyosin. Peripheral blood mononuclear cells from classically shrimp-allergic patients proliferated in a dose-dependent manner in response to to tropomyosin. In addition, a T-cell line derived from a shrimp-allergic patient proliferated specifically in response to tropomyosin-derived peptides. These studies suggest a strategy for immunotherapy using a tropomyosin-derived T-cell epitope vaccination.
journal_name
Hum Immunoljournal_title
Human immunologyauthors
Wang S,Delgado JC,Ravkov E,Eckels DD,Georgelas A,Pavlov IY,Cusick M,Sebastian K,Gleich GJ,Wagner LAdoi
10.1016/j.humimm.2011.12.019subject
Has Abstractpub_date
2012-04-01 00:00:00pages
426-31issue
4eissn
0198-8859issn
1879-1166pii
S0198-8859(11)00610-0journal_volume
73pub_type
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