- Effects of an anti-tumor polysaccharide, schizophyllan, on interferon-gamma and interleukin 2 production by peripheral blood mononuclear cells. Sakagami, Y., Mizoguchi, Y., Shin, T., Seki, S., Kobayashi, K., Morisawa, S., Yamamoto, S. Biochem. Biophys. Res. Commun. (1988)