Abstract

The effect of a new oil-soluble anticancer agent 'KM2210' (estradiol-chlorambucil) dissolved in lipiodol (LPD) was investigated as intraarterial chemotherapy, using 40 Wistar rats bearing Walker 256 carcinosarcoma in the extremities. KM2210-LPD significantly inhibited tumor growth and prolonged the survival time, as compared to LPD alone or saline alone, p less than 0.01 and p less than 0.01, respectively. Pathological study revealed that KM2210-LPD made the tumor necrotic. It was revealed that KM2210-LPD injected into the femoral artery was retained in the hind limb tumor. These findings suggest that KM2210 may possibly become a new anticancer agent with potential clinical use in LPD chemoembolization.

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