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  • Title: Transfer of osteosarcoma-specific cell-mediated immunity in hamsters by rabbit dialyzable leukocyte extracts.
    Author: Tsang KY, Fudenberg HH, Pan JF.
    Journal: Cell Immunol; 1985 Feb; 90(2):295-302. PubMed ID: 3855389.
    Abstract:
    We have investigated the transfer of specific cell-mediated immunity (CMI) to osteosarcoma-associated antigens (OSAA) to hamsters with dialyzable leukocyte extracts (DLE) from OSAA-immunized rabbits. The transfer of specific CMI was determined by leukocyte adherence inhibition (LAI) assay and skin testing. DLE was prepared from rabbits immunized with OSAA, purified protein derivative (PPD), or fibrosarcoma cell plasma membrane preparation (FSM). Control DLE was prepared from rabbits injected with 0.85% NaCl. Significant leukocyte adherence inhibition was observed with leukocytes from hamsters that had received OSAA-specific, PPD-specific, and FSM-specific rabbit DLE, when OSAA, PPD, and FSM were used as antigens, respectively. Similarly, significant ear swelling after injection of OSAA, PPD, or FSM was observed only in hamsters that had received DLE from rabbits immunized with OSAA, PPD, or FSM, respectively. These results suggest that CMI specific for OSAA, PPD, or FSM can be transferred to normal hamsters by DLE from immunized rabbits.
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