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Differential Effects of Preirradiation on Adoptive Antibody Responses in DBA/2 and BALB/c Mice

Donna Yonkosky, Rita F. Buffett and Michael Bennett
Radiation Research
Vol. 73, No. 3 (Mar., 1978), pp. 521-534
DOI: 10.2307/3574955
Stable URL: http://www.jstor.org/stable/3574955
Page Count: 14
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Differential Effects of Preirradiation on Adoptive Antibody Responses in DBA/2 and BALB/c Mice
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Abstract

Mice were lethally irradiated on the same day or 3 days prior to the infusion of syngeneic thymus and marrow cells. Mice were immunized with sheep erythrocytes and direct plaque-forming cells per spleen were determined 8 days after cell transfer. Preirradiation of hosts 3 days before cell transfer had varying effects on the level of adoptive antibody responses in mice of different strains: Responses of DBA/2 and DBA/1 were deficient, responses of CD2F1, B10, B10.D2, C3H, C3BF1 and SJL were unaffected, and responses of BALB/c, CBA, and 129 mice were enhanced. The defect in the antibody responses of DBA/2 hosts was dependent on the combination of a DBA/2 host and a DBA/2 cell inoculum. Differentiation of both DBA/2 thymus and marrow cells was deficient in the preirradiated DBA/2 host. This defect did not appear to be the result of loss of adherent cells from the preirradiated DBA/2 host. The enhanced antibody response observed in BALB/c mice appeared to be due to altered activity of BALB/c thymus cells. Preirradiated BALB/c or DBA/2 recipients reconstituted with BALB/c thymus cells and BALB/c or DBA/2 marrow cells showed enhanced antibody responses, while preirradiated BALB/c or DBA/2 recipients reconstituted with BALB/c marrow cells and DBA/2 thymus cells showed no change in degree of antibody responses when compared to control recipients. The preirradiated host had altered its ability to control BALB/c thymus cell activity; this lack of control may be due to loss of regulator cells from the host.

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