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- Document 0746
- DOCN M9620746
- TI B7-1 and interleukin 12 synergistically induce effective antitumor
- immunity.
- DT 9602
- AU Coughlin CM; Wysocka M; Kurzawa HL; Lee WM; Trinchieri G; Eck SL;
- Biomedical Graduate Program, University of Pennsylvania,; Philadelphia
- 19104, USA.
- SO Cancer Res. 1995 Nov 1;55(21):4980-7. Unique Identifier : AIDSLINE
- MED/96046606
- AB Enhanced host rejection of tumor cells is the primary goal of cancer
- immunotherapy and, in many murine tumor models, has been accomplished by
- engineering cells to express B7 costimulatory molecules or creating an
- environment rich in certain cytokines. We examined the effect of tumor
- cell B7-1 expression and administered recombinant interleukin 12 (IL-12)
- on the syngeneic host response to rapidly growing, poorly immunogenic
- SCK mammary carcinoma cells and to more slowly growing, immunogenic
- K1735 melanoma cells. Whereas B7-1 expression induced rejection of K1735
- cells in 78% of mice, and IL-12 induced rejection in 38%, B7-1
- expression induced rejection of SCK cells in only 28% of mice, and IL-12
- induced rejection in none. The relative ineffectiveness of either B7-1
- or IL-12 alone to induce rejection of SCK cells led us to combine the
- two manipulations. This resulted in rejection of SCK cells in 74% of
- mice and dramatically delayed tumor development in the remainder. Tumor
- rechallenge studies indicated that the surviving mice developed specific
- immunity to wild-type SCK cells. Lymphocyte subset ablation and
- IFN-gamma depletion studies indicated that rejection of SCK tumor cells
- brought about by the synergistic effects of B7-1 and IL-12 is mediated
- by a rapidly developing, systemic antitumor immune response that is
- dependent on the presence of both CD8+ and CD4+ T cells and involves
- IFN-gamma. Additionally, the synergistic effect of B7-1 expression and
- IL-12 administration is capable of inducing rejection of control SCK
- tumors simultaneously established in the opposite flank. The efficacy of
- B7-1 and IL-12 in inducing protective immunity against a poorly
- immunogenic, aggressive murine tumor indicates that this combination is
- particularly effective at producing a potent antitumor immune response
- that may be of therapeutic benefit.
- DE Animal Antigens, CD80/*THERAPEUTIC USE Comparative Study CD4-Positive
- T-Lymphocytes/IMMUNOLOGY CD8-Positive T-Lymphocytes/IMMUNOLOGY Drug
- Synergism Female Graft Rejection/IMMUNOLOGY Immunity, Natural
- Immunotherapy Interferon Type II/BIOSYNTHESIS
- Interleukin-12/*THERAPEUTIC USE Mammary Neoplasms,
- Experimental/*IMMUNOLOGY/*PREVENTION & CONTROL/ THERAPY Melanoma,
- Experimental/*IMMUNOLOGY/*PREVENTION & CONTROL Mice Mice, Inbred A
- Mice, Inbred C3H Neoplasm Transplantation/*IMMUNOLOGY Sensitivity and
- Specificity Support, Non-U.S. Gov't Support, U.S. Gov't, P.H.S.
- JOURNAL ARTICLE
-
- SOURCE: National Library of Medicine. NOTICE: This material may be
- protected by Copyright Law (Title 17, U.S.Code).
-
-