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  • Title: Adjuvant action of capsular polysaccharide of Klebsiella pneumoniae on antibody response. IV. The roles of antigen and adjuvant for induction of primary and secondary antibody responses and for development of immunological memory to bovine serum albumin.
    Author: Nakashima I, Kato N.
    Journal: Jpn J Microbiol; 1975 Aug; 19(4):277-85. PubMed ID: 1104933.
    Abstract:
    A study was performed to clarify the roles of primary and secondary injections of antigen and adjuvant (capsular polysaccharide of Klebsiella pneumoniae, CPS-K) in induction of antibody responses and in the development of immunological memory in mice to bovine serum albumin (BSA). A primary injection of BSA alone neither induced significant primary antibody response nor increased immunological memory for a secondary antibody response but, if primary injections of BSA and CPS-K were performed simultaneously, high antibody responses were induced. Moreover, a prior injection of BSA alone or CPS-K alone decreased the level of primary antibody response and the degree of increase in memory following the subsequent injection of BSA mixed with CPS-K. In contrast, a secondary injection of BSA alone into mice once primed with a mixture of BSA and CPS-K elicited very high secondary type antibody response and increased secondarily the memory for a tertiary antibody response. Injection of CPS-K simultaneously with or shortly before or after the secondary injection of BSA did not increase the level of the secondary antibody response and the degree of the secondary increase in memory. Augmentation of the secondary antibody response was elicited by simultaneous injection of CPS-K only when the secondary response was induced inadequately by a suboptimum or supraoptimum dose of antigen.
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