Method of preparation of a substance having a carcinostatic immunostimulant activity and, on the basis of the micro - organisms of the genus fusobacterium

摘要

This invention relates to a process for producing a TF-500 substance having carcinostatic and immunostimulating activities, which comprises subjecting organisms belonging to the Fusobacterium genus to extraction treatment with a dialkyl sulfoxide and obtaining said TF-500 substance from the resulting extract.