Inhibition of lung metastases in mice bearing a malignant fibrosarcoma by treatment with liposomes containing human C-reactive protein

Deodhar, S.D.; James, K.; Chiang, T.; Edinger, M.; Barna, B.P.

Cancer Research 42(12): 5084-5088

1982


ISSN/ISBN: 0008-5472
PMID: 7139613
Document Number: 188683
Recent studies suggest an immune modulator role for C-reactive protein (CRP). We have tested the effect of CRP in a tumor system designed for study of metastases. Fibrosarcoma T241 was implanted on one hind foot of syngeneic C57BL/6 mice. After 17 days, the tumor-bearing feet were amputated, and i.v. therapy of liposomes containing CRP or control reagents was started. Examination of the lungs on Day 35 showed that CRP:liposome-treated animals had significantly fewer and smaller metastases as compared with those in the control groups. Moreover, 38% of the animals in the former groups were completely free of metastases as compared with 0 to 2% of the controls. Significantly, enhanced survival was also noted in the CRP liposome-treated group. CRP may have biological response modifier" function of value in cancer therapy.

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