Complete remission of Bomirski Ab amelanotic melanoma in hamsters treated with the angiogenesis inhibitor TNP-470.

ABSTRACT

The growth of solid tumors and their metastasis is dependent on the development of new blood vessels (angiogenesis). In our previous studies it was found that angiogenesis inhibitor TNP-470 acting systematically can decrease the rate of growth of transplantable Bomirski Abmelanoma in hamsters. In this study we applied TNP-470 (30 mg/kg) peritumorally from the day when tumor was palpable over 10 days, once daily. Animals were killed 6 months later and examination by autopsy and histological preparations showed the complete remission of transplanted tumor and the lack of metastasis. Thus, Ab melanoma can be effectively cured with TNP-470 angiogenesis inhibitor when the substance is applied locally.