BACKGROUND: We examined whether oral administration of alloantigen could induce the prolonged survival of cardiac allografts. METHODS: Hearts from CBK (H2k+Kb) transgenic or (C57BL/10xCBA)F1 (H2bxH2k) mice were transplanted into CBA (H2k) recipients pretreated orally with 1 x 10(7) donor splenocytes in the presence or absence of a nondepleting anti-CD4 (YTS 177, 200 microg/dose). RESULTS: Modest prolongation of CBK cardiac grafts was induced in CBA mice fed with multiple doses of CBK splenocy...Expand abstract
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Nondepleting anti-CD4 monoclonal antibody enhances the ability of oral alloantigen delivery to induce indefinite survival of cardiac allografts: oral tolerance to alloantigen.
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