[Renal carcinoma: effective modulation of low-dose interferon-alpha and interleukin-2 with medroxyprogesterone acetate and 13-cis retinoic acid]. / Carcinoma renale: efficace modulazione dell'interferone-alpha e dell'interleuchina 2 a basse dosi con medrossiprogesterone acetato e acido 13-cis retinoico.

ABSTRACT

We report a case history of a patient with clear renal carcinoma. After surgical treatment of primary tumor patient had been treated with medium-high doses IL-2 and alpha IFN for lung metastasis and paraaortic nodes, without significant response. Subsequently, low doses alpha IFN/IL-2 produced a response, and further response have been obtained by the combination of low-doses alpha IFN/IL-2 plus medroxyprogesterone acetate and cis-retinoic acid. We can therefore conclude that in immunogenic tumors, such as renal cancer, various immunologic strategies are justified, also employing in combination drugs not active as single agents, or modifying doses and schedules.