Title : Treatment of lymphoma with radiolabeled antibody: elimination of tumor cells lacking target antigen.

Pub. Date : 1990 Jan 3

PMID : 1967149






7 Functional Relationships(s)
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1 We have previously shown that 131I-labeled monoclonal antibodies against the Thy1.1 differentiation antigen can induce the regression of Thy1.1 antigen-positive (Thy1.1+) AKR/J SL2 T cell lymphoma nodules in AKR/Cum (Thy1.2+) mice. Iodine-131 thymus cell antigen 1, theta Mus musculus
2 We have previously shown that 131I-labeled monoclonal antibodies against the Thy1.1 differentiation antigen can induce the regression of Thy1.1 antigen-positive (Thy1.1+) AKR/J SL2 T cell lymphoma nodules in AKR/Cum (Thy1.2+) mice. Iodine-131 thymus cell antigen 1, theta Mus musculus
3 We have previously shown that 131I-labeled monoclonal antibodies against the Thy1.1 differentiation antigen can induce the regression of Thy1.1 antigen-positive (Thy1.1+) AKR/J SL2 T cell lymphoma nodules in AKR/Cum (Thy1.2+) mice. Iodine-131 thymus cell antigen 1, theta Mus musculus
4 We have previously shown that 131I-labeled monoclonal antibodies against the Thy1.1 differentiation antigen can induce the regression of Thy1.1 antigen-positive (Thy1.1+) AKR/J SL2 T cell lymphoma nodules in AKR/Cum (Thy1.2+) mice. Iodine-131 thymus cell antigen 1, theta Mus musculus
5 In this study, we examined the ability of 131I-labeled anti-Thy1.1 antibodies to eliminate tumor nodules containing variant lymphoma cells that do not express the Thy1.1 antigen (Thy1.1-). Iodine-131 thymus cell antigen 1, theta Mus musculus
6 One week later, when an established tumor nodule was present, mice were treated with 1,500-1,700 microCi of 131I-labeled anti-Thy1.1 antibody. Iodine-131 thymus cell antigen 1, theta Mus musculus
7 In contrast, no complete regressions were observed in mice with only antigen-negative tumor cells treated with 131I-labeled anti-Thy1.1 antibody or in mice inoculated with antigen-positive tumor and treated with an 131I-labeled control antibody. Iodine-131 thymus cell antigen 1, theta Mus musculus