NCI Drug Dictionary
The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.
A protein-bound polysaccharide derived from the mushroom Trametes versicolor (Turkey Tail) with immunoadjuvant and potential antitumor activities. Although its mechanism of action has yet to be fully elucidated, in vitro and in vivo studies indicate that polysaccharide-K induces peripheral blood monocyte secretion of IL-8 and TNF-alpha, induces T cell proliferation, and prevents cyclophosphamide-induced immunosuppression. This agent has also been reported to stimulate macrophages to produce reactive nitrogen intermediates and superoxide anions and to promote apoptosis in the promyelocytic leukemia cell line HL-60. Check for active clinical trials using this agent. (NCI Thesaurus)
Foreign brand name: Krestin Abbreviation: PSK