Dental allografts can immunize recipients against skin allografts because some antigens are shared between teeth and skin. The effect of storage in the recipient's blood (ten days, 4 C) on the immunogenicity of subcutaneously allotransplanted rabbit teeth was examined. Storage in blood depressed the antigenicity of teeth, as detected by prolongation of the rejection time of second-set skin grafts in comparison with teeth stored in saline solution, or fresh, nonstored teeth. Further studies are needed to elucidate the mechanism of this procedure.
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