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. 1977 Apr;32(4):539–548.

Effect of carrier priming on antibody acidity in the in vivo and in vitro immune response*

G Doria, Giovanna Agarossi, Diana Boraschi, Maria Antonietta Amendolea
PMCID: PMC1445499  PMID: 344202

Abstract

The effect of carrier priming on antibody avidity was investigated under several experimental conditions. Basically, mice were carrier primed with HRBC (horse red blood cells) prior to immunization with TNP (2,4,6-trinitrophenyl) conjugated to HRBC. Immunization was performed either in vivo or in spleen cell culture, and avidity of anti-TNP antibodies was estimated from inhibition of direct PFC (plaque-forming cells) by free TNP-BSA (-bovine serum albumin).

The data indicate the appropriate conditions under which carrier priming can enhance antibody avidity. The carrier effect is maximized by priming the animals with 104-105 HRBC 3-7 days before immunization with a low dose of TNP-HRBC. Hyper-immunization by repeated injections of a high dose of the conjugate does not modify the carrier effect on avidity but it delays the fall of avidity in both carrier primed and unprimed animals. These results are interpreted in terms of T- and B-cell co-operation within the framework of the maturation theory of antibody affinity.

Carrier priming was also found to increase the number of direct PFC of the IgM and, mostly, of the non-IgM classes, a finding in agreement with the notion that T cells can help IgM production and the shift to IgG.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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