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Fixation of Parental Strain Lymphocytes in F1 Hybrid Rats during Cross-circulation

Abstract

IT is now well established that homologous disease follows the injection of immunologically competent cells into new-born animals1–3, F1 hybrids4,5, irradiated animals6 and adult animals rendered tolerant by neonatal injections of lymphoid cells7, as well as after repeated injection of a large number of lymphoid cells into adults8. Peripheral blood lymphocytes have been shown to be immunologically competent, and homologous disease has been produced by the injection of whole blood9, or buffy-coat layer cells10. To reduce the amount of damage suffered by lymphocytes during manipulation in vitro, a technique has been developed for cross-circulating the blood between two rats. Using this technique, homologous disease has been produced with the parent–F1 hybrid combination, and the problem of whether transfused parental strain lymphocytes continue to recirculate in the host after transfusion, or whether they are rapidly fixed in the tissues, has been investigated.

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CAUCHI, M. Fixation of Parental Strain Lymphocytes in F1 Hybrid Rats during Cross-circulation. Nature 209, 817–818 (1966). https://doi.org/10.1038/209817a0

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