Melanoma: epidemiology, pathogenesis, and new modes of treatment.

The treatment of patients with advanced stage (stage III and IV) melanoma remains discouraging. Except for the study using tamoxifen, combination chemotherapy (cisplatin, DTIC, BCNU), plus biological therapy (IFN-alpha and/or IL-2), which achieved a 57% response rate, virtually any combination of agents or modalities yielded response rates of only 20% to 30%, and none are effective in central nervous system metastases. Durable clinical cures in patients with advanced-stage disease are extremely rare and can probably be attributed more to host defense mechanisms than iatrogenic intervention. The future in treatment then can only look promising to immunologists, molecular biologists, and clinicians striving to elucidate the biological mechanisms isolated patients have for destroying melanoma cells and incorporating those mechanisms into therapeutics for the remainder of melanoma victims.