Epitope specificity of spontaneous and induced thyroglobulin autoantibodies in the rat. 1988

H J De Assis-Paiva, and B Champion, and D C Rayner, and E Colle, and A Bone, and I M Roitt, and A Cooke
Department of Immunology, University College and Middlesex School of Medicine, London.

We have investigated the epitope specificities of rat thyroglobulin (Tg) autoantibodies arising either spontaneously in BB hybrid and BB rats or following induction in normal rats with thyroglobulin and adjuvant. Using a panel of thyroglobulins from different animal species it was possible to identify three different patterns of reactivity. These were: 1) recognition of all species of thyroglobulin; (2) recognition restricted to rat and mouse thyroglobulins and 3) recognition biased towards dog, rat and mouse thyroglobulins. Furthermore, using human thyroglobulin manifesting different levels of iodination, it was possible to show that sera with recognition pattern 1 recognized the iodination site of thyroglobulin and that this was inhibitable by thyroxine. Taken together these data provide evidence of restricted epitope recognition by Tg autoantibodies in the rat.

UI MeSH Term Description Entries
D011913 Rats, Inbred BB A strain of Rattus norvegicus which is a model for spontaneous insulin-dependent diabetes mellitus (DIABETES MELLITUS, INSULIN-DEPENDENT). BB Wistar Rats,Bio-Breeding Inbred Rats,Rats, BB,BB Rat,BB Rat, Inbred,BB Rats,BB Rats, Inbred,Bio Breeding Inbred Rats,Bio-Breeding Inbred Rat,Inbred BB Rat,Inbred BB Rats,Inbred Rat, Bio-Breeding,Inbred Rats, Bio-Breeding,Rat, BB,Rat, Bio-Breeding Inbred,Rat, Inbred BB,Rats, BB Wistar,Rats, Bio-Breeding Inbred,Wistar Rats, BB
D003429 Cross Reactions Serological reactions in which an antiserum against one antigen reacts with a non-identical but closely related antigen. Cross Reaction,Reaction, Cross,Reactions, Cross
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000939 Epitopes Sites on an antigen that interact with specific antibodies. Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic
D001323 Autoantibodies Antibodies that react with self-antigens (AUTOANTIGENS) of the organism that produced them. Autoantibody
D001667 Binding, Competitive The interaction of two or more substrates or ligands with the same binding site. The displacement of one by the other is used in quantitative and selective affinity measurements. Competitive Binding
D013045 Species Specificity The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species. Species Specificities,Specificities, Species,Specificity, Species

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