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Induction and persistence of B-cell tolerance to the thymus-dependent component of the alpha(1 leads to 6) glucosyl determinant of dextran. Recovery induced by treatment with dextranase in vivo

, : Induction and persistence of B-cell tolerance to the thymus-dependent component of the alpha(1 leads to 6) glucosyl determinant of dextran. Recovery induced by treatment with dextranase in vivo. Immunology 44(3): 517-527

A direct comparison was made between thymus-dependent (TD) and thymus-independent (TI) responses in mice tolerized for (1 leads to 6) glycosyl determinants by the injection of dextran B512. Long-lasting B-cell tolerance by dextran was reversed when mice were treated with dextranase in vivo. Complete or partial reversion of tolerance with the enzyme was invariably obtained for the TI response but the TD component proved to be more resistant and dependent on the immunogen used to test the reversion. The uniformity of the spectrotype in BALB/c mice, even under conditions of partial tolerance, permitted the analysis by isoelectric focussing of serum from tolerant mice treated with dextranase and immunized with TD dextran-ovalbumin. Results showed that, with one single exception, mice thus treated produced spectrotypes no different from the pattern normally found in immune animals. The results presented suggest that at least some alpha(1 leads to 6) specific B cells, both TD and TI, persist in tolerized mice for at least 2 weeks after tolerance induction and they do not support the concept of clonal elimination for either TI or TD responses in adult mice.


PMID: 6172369

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Keremidarska, S.; Doichev, K.; Milanov, B.; Lekhova, E., 1976: Cultural practices for overcoming alternate bearing. N applied annually at 60 to 480 kg/ha did not affect the initiation of fruit bearing or the onset of full bearing of trees in 8 years' trials with apple cv. Golden Delicious. The total length of one-year-old shoots varied from 96 to 142 m/tre...

Huss, W., 1983: Importance of the agrarian industry for the maximum use of labor force potentials in the developing countries. Nauchni trudove Vissh selskostopanski institut "Vasil Kolarov"8(1): 231-238

Dashek, W.V.; Walker, S.J.; Reynolds, J.D.; Llewellyn, G.C., 1985: Aflatoxin-induced alterations in Glycine max, cv. 'Essex' root cell membrane protein content. Aflatoxins (AFTs) are hepatocarcinogens, mutagens, teratogens and toxins. Isolates of AFTs-producing strains of Aspergillus flavus can grow upon both autoclaved soybeans and to a lesser extent field-grown beans. Besides inhibiting the elongation o...

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Dobbs, E.C., 1947: Chemotherapy and the antibiotics. New York Journal of Dentistry 17(12): 343-354

Neill, G.D., 1973: Predicted and measured performance of a segmented-channel focusing collimator. International Journal of Applied Radiation and Isotopes 24(10): 563-570

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