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  • 1
    Electronic Resource
    Electronic Resource
    NON-SPECIFIC REGULATION OF IMMUNE RESPONSIVENESS TO A THYMUS-INDEPENDENT ANTIGEN, TNP-LPS, IN HIGH AND LOW RESPONDER LINES OF MICE (1985)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of immunogenetics 12 (1985), S. 0 
    Details
    ISSN: 1744-313X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology , Medicine
    Notes: Responsiveness to a thymus-independent (TI-1) antigen, TNP-LPS, was investigated in the high and low responder lines of mice resulting from four independent selective breedings carried out for antibody production to various complex natural immunogens (selections I, III, IV and V). The superiority of the high responder vs. the low responder line was generally observed, confirming that the genes accumulated through selective breeding can modify the responsiveness to unrelated antigens including TI antigens.Two special features were observed in selection III: (1) A secondary response to TNP-LPS: higher peak values and IgG isotype antibody production were obtained in the H line. (2) Pretreatment with LPS modified the responses to TNP in the L line only.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1744-313X.1985.tb00838.x
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  • 2
    Electronic Resource
    Electronic Resource
    Independent Genetic Control of B- and T-Cell Tolerance in Strains of Mouse Selected for Extreme Phenotypes of Oral Tolerance (2001)
    Oxford, UK : Blackwell Science Ltd
    Scandinavian journal of immunology 53 (2001), S. 0 
    Details
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Two strains of mice were genetically selected for susceptibility (TS-Ab/HetS strain) or resistance (TR-Ab/HetS strain) to oral tolerance of the humoral response by using ovalbumin (OVA). The progressive interstrain divergence produced by bi-directional selective breeding during 15 generations demonstrated the polygenic nature of oral tolerance. This paper shows the humoral and delayed-type hypersensitivity (DTH) responses, after intragastric administration of OVA and subsequent immunization with that immunogen in complete Freund adjuvant (CFA). Only the TS-Ab/HetS mice were tolerant for immunoglobulin (Ig)G production with its tolerance degree being the same as that obtained when Al (OH)3 was employed. The DTH reactivity was not correlated to the antibody responsiveness, because both the TS-Ab/HetS and TR-Ab/HetS strains had their DTH reactions suppressed. The cyclophosphamide (Cy) pretreatment prevented DTH suppression on TR-Ab/HetS but do not in TS-Ab/HetS mice. Interstrain difference was also observed for the splenic index in the Cy-treated groups, although the number of splenocytes was the same. Flux cytometry cell analysis showed the recovery of CD3+ cell numbers in both strains, but only the TR-Ab/HetS mice had their CD4/CD8 pattern restored. These results suggest: firstly, the independent control of DTH and humoral tolerance responsiveness; secondly no support for the clonal anergy concept; and thirdly the matrix proteins neo-synthesis after Cy treatment may facilitate the tolerance abrogation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1046/j.1365-3083.2001.00847.x
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  • 3
    Electronic Resource
    Electronic Resource
    Polygenic control of antibody production and correlation with vaccine induced resistance to rabies virus in high and low antibody responder mice (1996)
    Springer
    Archives of virology 141 (1996), S. 1397-1406 
    Details
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The amplification of “high” (H) and “low” (L) multispecific antibody responses achieved respectively by H and L lines of selection GP represents a valuable tool in the genetic study of host-infection interactions. These lines were obtained by bidirectional selective breeding for high (HGP) or low (LGP) antibody production to natural complex antigens. HGP and LGP parental lines and reciprocal F1 hybrids, as well as their F2 segregants and backcrosses were submitted to immunization and challenge with rabies virus CVS strain. Acquired resistance was 1000-fold higher in HGP than LGP mice, with a dominance effect to low antibody production observed in F1 hybrids. An association between high antibody response and acquired resistance (P〈0.001) in F2 segrgant mice was noticed. The genetic study was performed in these several populations, with a single dose of 104.5-fold LD50 CVS. We could demonstrate 3 independent loci regulating the anti-rabies antibody production, that are distinct, at least in part, from the 10 genes controlling the antigen selection response (sheep erythrocytes) of selection GP.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01718243
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    Paper (German National Licenses)
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