Immunologic induction of reticulum cell sarcoma: donor‐type lymhomas in the graft‐versus‐host model
- 1 June 1975
- journal article
- research article
- Published by Wiley in European Journal of Immunology
- Vol. 5 (6), 406-412
- https://doi.org/10.1002/eji.1830050610
Abstract
The aim of this study was to investigate malignant lymphomas of donor origin induced in F1 mice undergoing a chronic graft-versus-host reaction (GVHR) after injection of parental strain spleen cells. A total of 3 × 108 or 4 × 108 C57BL/10 spleen cells were administered to 7—8-week-old H-2 incompaltible (C57BL/10 × HTG)F1 hybrids either as single or fractionated i.p. injections. Recipients were killed at intervals ranging from 1 month to 1 year after the first injection and their lymphoid cells typed for host-derived and donor-derived histocompatibility antigens. In 49 % of the 88 GVH F1 mice, cells failed to be killed by a hyperimmune serum against HTG (H-2g) but reacted normally with antisera to C57BL/10(H-2b) and, in the 9 cases tested, to theta-C3H. The conclusion that the lymphoid cells of these mice were derived from donor cells was supported by the finding that these amimals lacked immunoglobulins bearing host-derived Iga allotype in their serum. Forty-three percent of the GVH F1 mice developed reticulum cell sarcomas (RCS), 32 % revealed hyperplasticlymphoreticular tissue, and 25 % showed no grossly abnormal changes. Mice with donor-typelymphoid tissues were found in all three groups; 50 % of the 38 RCS detected were donor-type neoplasms. The induction of donor-type RCS during the GVHR strengthens the concept of lymphomagenesis through persistent stimulation with antigen(s).Keywords
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