Wiktionary
lentinan
n. (context carbohydrate English) A glucan found in some mushrooms
Wikipedia
Lentinan
Lentinan is an intravenous anti-tumor polysaccharide isolated from the fruit body of shiitake (Lentinula edodes mycelium (LEM))). Lentinan has been approved as an adjuvant for stomach cancer in Japan since 1985.1 Lentinan is one of the host-mediated anti-cancer drugs which has been shown to affect host defense immune systems.