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  • Title: Cross-induction of predominant NPb idiotypic antibodies with derivatives of (4-hydroxy-3-nitrophenyl) acetyl.
    Author: Ju ST, Dorf ME.
    Journal: J Immunol; 1981 Dec; 127(6):2224-8. PubMed ID: 6170692.
    Abstract:
    Immunization of C57BL/6 mice with bovine gamma-globulin (BGG) conjugated with (4-hydroxy-3-nitrophenyl) acetyl (NP) induced a population of anti-NP antibodies that bear predominantly lambda light chain, exhibit heteroclitic affinity for heterologous NP derivatives, and share NPb idiotype. The present study analyzes the idiotypes of antibodies induced with BGG conjugated with the iodo-, bromo-, or nitro-NP derivatives (NIP, NBrP, and NNP). NIP-BGG, NBrP-BGG, and NNP-BGG, induce specific antibodies bearing NPb idiotype in C57BL/6 or C57BL/10 congenic mice, but not in many other inbred strains. Furthermore, the quantity of NPb idiotype in immune sera from various mouse strains immunized with NIP-BGG, NBrP-BGG, and NNP-BGG was similar to that in sera from mice immunized with NP-BGG. Anti-idiotypic antisera against C57BL anti-NP, anti-NIP, or anti-NBrP antibodies exhibit extensive idiotype binding of specifically purified B6 anti-NP, -NIP, -NBrP, and -NNP antibodies. These purified antibodies contain a high percentage (greater than 70%) of lambda-chain-bearing molecules. The data indicate that an extensively shared repertoire composed of predominantly lambda-bearing NPb-positive idiotypic antibodies is used in response to NP and its derivatives in C57BL mice.
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