Studies on the Host-mediated Antitumor Polysaccharides. Part XV. Antitumor Activity of Some Polysaccharides Isolated from a Chinese Mushroom, "Huangmo", the Fruiting Body of Hohenbuehelia serotina.

Abstract

Polysaccharides were extracted from a Chinese mushroom, Huangmo with hot water (FI), 1% ammonium oxalate solution (FII), and 5% sodium hydroxide (FIII) and 20 more polysaccharides were isolated by ethanol precipitation, ion-exchange chromatography, gel filtration, and affinity chromatography. Of the six polysaccharides obtained, FI0, FA-1, FA-2, FII-2, FIII-1-b, and FIII-2-b were selected on the basis of the results of the antitumor activity test (the Sarcoma 180/mice, i.p. method). Six fractions which showed relatively high activities were examined: FI0, a mixture of galactose-containing heteroglycan and β-D-glucan; FA-1 and -2, β-D-glucan with galactose-containing hetero-glycan and protein; FII-2, β-D-glucan; and FIII-1-b and FIII-2-b, (1→6)-β-D-glucosyl branched (1→3)-β-D-glucan.