Summary
The use of isolated tumor cell subpopulations combined with nonspecific immunostimulation (BCG and C parvum) was studied in the L1210-B6D2F1 tumor-host model. Some tumor cell vaccines abrogated the immunotherapeutic value of nonspecific immunostimulants. A tumor cell vaccine prepared from a subpopulation with no apparent immunotherapeutic value completely neutralized the excellent therapeutic value of C parvum in this tumor-host model. The results emphasize the limitations of immunotherapy, and also the need to understand fundamental relationships between the immunological status of the host and subsequent immune stimulation.
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Killion, J.J. Immunotherapy with tumor cell subpopulations. Cancer Immunol Immunother 5, 27–30 (1978). https://doi.org/10.1007/BF00199204
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DOI: https://doi.org/10.1007/BF00199204