PROCESSES FOR PURIFYING TUMOR NECROSIS FACTORS AND FOR PRODUCING RECOMBINANT DNA MOLECULES CODING FOR TUMOR NECROSIS FACTOR-LIKE COMPOUNDS AND TUMOR NECROSIS FACTORS

摘要

A process of producing mammalian tumor necrosis factors (TNF) and TNF-like polypeptides by culturing prokaryotic hosts transformed with a recombinant DNA molecule comprising DNA sequences encoding those polypeptides operatively linked to either one of the T4 or the pL-T4 expression control sequences. A process for purifying TNF-like polypeptides using an anion exchanger. The TNFs and TNF-like polypeptides produced by the processes of this invention, and compositions and methods utilizing those TNFs and TNF-like polypeptides, are useful in anticancer, antitumor and antimalarial therapies. They are also useful together with interferon therapy and chemotherapy in anticancer and antitumor therapies, and in combination with actinomycin D in the treatment of tumor-bearing mammals.