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  • Title: Antitumor effects of a new lipophilic platinum compound, trans-bis(n-valerato)(1R,2R-cyclohexanediamine)(oxalato)platinum(IV), in mice.
    Author: Saegusa Y, Eriguchi M, Kidani Y, Matsuzawa A, Takeda Y.
    Journal: Anticancer Res; 2001; 21(1A):245-52. PubMed ID: 11299742.
    Abstract:
    A new lipophilic platinum (Pt) compound, trans-bis(n-valerato)(1R,2R-cyclohexanediamine)(oxalato)Pt(lV) (C5-OHP), was compared with cisplatin (CDDP) by intraperitoneal injection for antitumor activities against 3 different mouse models, L1210 leukemia, LMFS sarcoma with high metastatic potential and spontaneous mammary tumor. C5-OHP cured both CDDP-sensitive and -resistant L1210 leukemia frequently. CDDP did not cure the leukemia, although it prolonged the survival of diseased mice significantly. C5-OHP cured early and advanced LMFS sarcomas more frequently than CDDP. Cured mice had acquired antitumor immunity, indicating the pivotal role of the immune system in induction of the cure of tumors. It is likely tllat C5-OHP can eradicate tumor cells more effectively than CDDP by virtue of its weaker suppressive effects on the immune system. C5-OHP but not CDDP could cure mammary tumors. C5-OHP manifested a curative effect against LMFS tumors by oral route. These results indicate that C5-OHP is a promising anticancer agent worthy of clinical trial.
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