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Angiotensin II (AII)-related idiotypic network. I. Common occurrence of AII internal image on rabbit anti-idiotypic antibodies. 1988

F Pontillon, and P Moullier, and P M Ronco, and P J Verroust
Unité 64, Institut National de la Santé et de la Recherche Médicale, Hôpital Tenon, Paris, France.

Internal images of foreign Ag have been demonstrated in a variety of systems as anticipated by the idiotypic network theory formulated by Jerne. However, they seem to be of rare occurrence. In order to estimate the actual frequency of antibodies bearing internal images (Ab2-beta) of angiotensin II (AII), a phylogenetically conserved peptide made up of eight amino acids, nine rabbits were immunized with affinity or protein A purified anti-AII antibodies (Ab1) from allotype-matched rabbits. Four of nine antiidiotypic antibodies (Ab2) exhibited internal image-like reactivity. They recognized all the polyclonal Ab1 tested, whatever the species (rabbit, mouse, guinea pig). In addition, they were strongly reactive with three mAb specific for a carboxy terminus epitope on AII (mAb 110, 199, and 211) and with a fourth monoclonal Ab1 (133) identifying a more central epitope. Advantage was taken of this reactivity with mAb1 to purify Ab2-beta by affinity chromatography of Ab2 on Sepharose 4B covalently linked to the three monoclonal Ab1 specific for the carboxy terminus epitope. The eluate displayed typical internal image properties: 1) it reacted with all the polyclonal Ab1 tested, 2) this reaction was completely abolished by AII, and 3) rabbits and mice immunized with the eluate all produced Ab1. The AII related idiotypic network is thus characterized by high frequency and immunogenicity of AII internal images. In addition, reactivity of the latter with monoclonal Ab1 indicates variable expression on Ab2-beta of the epitopes defined by the mAb on the nominal Ag.

UI MeSH Term Description Entries
D007130 Immunoglobulin Idiotypes Unique genetically-controlled determinants present on ANTIBODIES whose specificity is limited to a single group of proteins (e.g., another antibody molecule or an individual myeloma protein). The idiotype appears to represent the antigenicity of the antigen-binding site of the antibody and to be genetically codetermined with it. The idiotypic determinants have been precisely located to the IMMUNOGLOBULIN VARIABLE REGION of both immunoglobin polypeptide chains. Idiotypes, Immunoglobulin,Ig Idiotypes,Idiotype, Ig,Idiotype, Immunoglobulin,Idiotypes, Ig,Ig Idiotype,Immunoglobulin Idiotype
D011817 Rabbits A burrowing plant-eating mammal with hind limbs that are longer than its fore limbs. It belongs to the family Leporidae of the order Lagomorpha, and in contrast to hares, possesses 22 instead of 24 pairs of chromosomes. Belgian Hare,New Zealand Rabbit,New Zealand Rabbits,New Zealand White Rabbit,Rabbit,Rabbit, Domestic,Chinchilla Rabbits,NZW Rabbits,New Zealand White Rabbits,Oryctolagus cuniculus,Chinchilla Rabbit,Domestic Rabbit,Domestic Rabbits,Hare, Belgian,NZW Rabbit,Rabbit, Chinchilla,Rabbit, NZW,Rabbit, New Zealand,Rabbits, Chinchilla,Rabbits, Domestic,Rabbits, NZW,Rabbits, New Zealand,Zealand Rabbit, New,Zealand Rabbits, New,cuniculus, Oryctolagus
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
D000804 Angiotensin II An octapeptide that is a potent but labile vasoconstrictor. It is produced from angiotensin I after the removal of two amino acids at the C-terminal by ANGIOTENSIN CONVERTING ENZYME. The amino acid in position 5 varies in different species. To block VASOCONSTRICTION and HYPERTENSION effect of angiotensin II, patients are often treated with ACE INHIBITORS or with ANGIOTENSIN II TYPE 1 RECEPTOR BLOCKERS. Angiotensin II, Ile(5)-,Angiotensin II, Val(5)-,5-L-Isoleucine Angiotensin II,ANG-(1-8)Octapeptide,Angiotensin II, Isoleucine(5)-,Angiotensin II, Valine(5)-,Angiotensin-(1-8) Octapeptide,Isoleucine(5)-Angiotensin,Isoleucyl(5)-Angiotensin II,Valyl(5)-Angiotensin II,5 L Isoleucine Angiotensin II,Angiotensin II, 5-L-Isoleucine
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
D000888 Antibodies, Anti-Idiotypic Antibodies which react with the individual structural determinants (idiotopes) on the variable region of other antibodies. Anti-Antibodies,Anti-Idiotype Antibodies,Antibodies, Internal Image,Antigamma Globulin Antibodies,Antiglobulins,Anti Antibodies,Anti-gamma Globulin Antibodies,Anti Idiotype Antibodies,Anti gamma Globulin Antibodies,Anti-Idiotypic Antibodies,Antibodies, Anti,Antibodies, Anti Idiotypic,Antibodies, Anti-Idiotype,Antibodies, Anti-gamma Globulin,Antibodies, Antigamma Globulin,Globulin Antibodies, Anti-gamma,Globulin Antibodies, Antigamma,Image Antibodies, Internal,Internal Image Antibodies
D000939 Epitopes Sites on an antigen that interact with specific antibodies. Antigenic Determinant,Antigenic Determinants,Antigenic Specificity,Epitope,Determinant, Antigenic,Determinants, Antigenic,Specificity, Antigenic
D001666 Binding Sites, Antibody Local surface sites on antibodies which react with antigen determinant sites on antigens (EPITOPES.) They are formed from parts of the variable regions of FAB FRAGMENTS. Antibody Binding Sites,Paratopes,Antibody Binding Site,Binding Site, Antibody,Paratope
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
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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