Kinetics and distribution of antigen-specific IgE-secreting cells during the primary antibody response in the rat.
A new assay system is described for the enumeration of antigen-specific IgE immunoglobulin-secreting cells (ISC) based on an enzyme-linked immunoabsorbent assay. Using this technique to monitor the organ distribution of OVA-specific ISC after primary immunization of rats, approximately 12,000 specific IgE ISC were detected at the peak of the response in the draining lymph nodes compared with 117,000 IgG ISC; the splenic anti-OVA response was restricted to the IgM class. Using plates precoated with anti-rat IgE instead of antigen, total IgE ISC were enumerated in normal and helminth-parasitized rats. The assay system detected up to 5 X 10(5) IgE ISC in mesenteric lymph nodes from parasitized animals compared with less than 50 in controls.
D000818:Animals; D004797:Enzyme-Linked Immunosorbent Assay; D000939:Epitopes / Q000276:immunology; D006725:Hookworm Infections / Q000276:immunology; D007114:Immunization; D007073:Immunoglobulin E / Q000096:biosynthesis*; D008198:Lymph Nodes / Q000276:immunology*; D008297:Male; D009559:Nippostrongylus; D010047:Ovalbumin / Q000276:immunology; D051381:Rats; D014018:Tissue Distribution; D010948:Viral Plaque Assay
D000939:Epitopes; D007073:Immunoglobulin E; D010047:Ovalbumin