Apart from obvious anti-VIH anti-neoplastic effects reported in virus-associated tumors such as Kaposi’s sarcoma [25] and Xenotropic murine leukemia-related retrovirus, which has been linked to human prostate cancer and chronic fatigue syndrome [26], several evidences highlight the anti-tumoral properties of anti-retrovirals including RAL. This evidence concerns the gene RALA and Kaposi's sarcoma.