Idiotypic Cross-reactivity Between Antibodies of Different Specificities
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General Medicine
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Cross-idiotypic specificity has been demonstrated between antibody populations of different specificities using antibodies directed toward human sickle cell hemoglobin (HbS). A site-specific antibody directed toward the beta6-position of HbS, anti-Val, was used to elicit an anti-idiotypic response in rabbits. Using this anti-idiotypic serum, idiotypic cross-reactivity was demonstrated between antibody populations that bind to human adult hemoglobin (HbA). It was demonstrated that in the case of the goat antibodies, these idiotypically cross-reacting antibodies are directed towards the beta6-position of the hemoglobin molecule. However, they differ in their specificity, binding to this site on HbA, whereas anti-Val binds only to HbS. The sheep antibody populations directed toward HbS differ qualitatively from those of the goat. Using rabbit anti-idiotypic serum specific for sheep anti-Val, cross-reactivity could be demonstrated with antibodies directed toward the alpha-chain of the hemoglobin molecule, as well as the beta-chain. There was also a low level of cross-reactivity with antibodies from a goat immunized with HbA.
de Macedo A, Guimaraes J, Rodrigues R, Araujo T, Tavares C, Cabral P J Clin Lab Anal. 2017; 32(3).
PMID: 28594117 PMC: 6817260. DOI: 10.1002/jcla.22276.
Idiotypy of clonal responses to influenza virus hemagglutinin.
Liu Y, Bona C, SCHULMAN J J Exp Med. 1981; 154(5):1525-38.
PMID: 7299346 PMC: 2186501. DOI: 10.1084/jem.154.5.1525.
Recurrent idiotopes and internal images.
Jerne N, Roland J, Cazenave P EMBO J. 1982; 1(2):243-7.
PMID: 6985352 PMC: 553027. DOI: 10.1002/j.1460-2075.1982.tb01154.x.
Genetic control of a shared idiotype among antibodies directed to distinct specificities.
Ju S, Benacerraf B, Dorf M J Exp Med. 1980; 152(1):170-82.
PMID: 6772732 PMC: 2185899. DOI: 10.1084/jem.152.1.170.
A major anti-myoglobin idiotype. Influence of H-2-linked Ir genes on idiotype expression.
Kawamura H, Kohno Y, Busch M, Gurd F, Berzofsky J J Exp Med. 1984; 160(3):659-78.
PMID: 6432932 PMC: 2187394. DOI: 10.1084/jem.160.3.659.