Abstract: Methods of treating a brain tumor by administering a drug containing recombinant mistletoe lectin are described. The recombinant mistletoe lectin can be a mistletoe lectin A-chain, a mistletoe lectin B-chain, or a combination thereof. Brain tumors that can be treated by the method described include primary brain tumours, gliomas, glioblastomas, meningiomas and pituitary adenomas.

Abstract: An antiviral agent containing recombinant mistletoe lectins for treating virus infections and a medicament and/or pharmaceutical composition for treating virus infections are described. Recombinant mistletoe lectin polypeptides can be a mistletoe lectin A-chain, as well as parts or fragments of the mistletoe lectin A-chain. The antiviral agent can be used for any number of virus infections, such as Herpes simplex, adenovirus, poliovirus, and poxvirus. Also, the antiviral agent can be used for skin virus warts, anogenital warts, mucous membrane warts and malignant tumors such as cervical cancer, penis and vulvar cancer.