The allogeneic effect on tumor growth. II. Suppression of both ascitic and solid MOPC 315 plasmacytoma by the graft-vs-host reaction, with pathologic correlation.
The growth of an ascitic murine plasmacytoma, MOPC 315, can be retarded in CAF1 hybrid host mice by the i.p. injection of donor lymphoid cells. The graft-vs-host reaction can be established by a variety of donor cells, including parental BALB/c and A/J and congenic inbred B10.D2 which share the major histocompatibility locus with BALB/c(H-2d). Optimal results are consistently obtained when parental BALB/c spleen cells are injected before tumor inoculation, and a second dose of donor spleen cells injected 1 week later. This aloogeneic effect on tumor growth is manifested by delayed appearance of the tumor and prolonged host survival. Pathologic studies on the ascites tumor indicated that the allogeneic effect suppresses the initial appearance and early growth of the plasmacytoma. However, once established, MOPC 315 grows rapidly and fatally in both control mice and recipients of donor lymphoid cells. Further, a subcutaneous implant of MOPC 315 is suppressed by an allogeneic effect established either i.v. with BALB/c spleen cells before tumor inoculation or by BALB/c spleen cells administered subcutaneously at the time of MOPC 315 implant. Thirty percent of mice treated by i.v. or subcutaneous donor lymphoid cells were tumor free at 150 days after tumor inoculation.[1]References
- The allogeneic effect on tumor growth. II. Suppression of both ascitic and solid MOPC 315 plasmacytoma by the graft-vs-host reaction, with pathologic correlation. Osborne, D.P., Katz, D.H. J. Immunol. (1977) [Pubmed]
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