1. Spontaneous production of a suppressor factor by the human macrophage like cell line U937. I. Suppression of interleukin 1, interleukin 2 and mitogen induced blastogenesis in mouse thymocytes;Fujiwara;J. Immun.,1986
2. Soluble suppressor supernatants elaborated by Concanavalin-A activated human mononuclear cells. 1. Characterization of a soluble suppressor of T cell proliferation;Greene;J. Immun.,1981
3. Inhibition of human lymphocyte proliferation by the nonmitogenic lectin wheat germ agglutinin;Greene;J. Immun.,1980
4. Competitive activity of PSK on the immunosuppressive factors derived from tumor bearing mice;Matsunaga;Jap. J. Cancer Chemother.,1980
5. The mechanism of immunomodulation by polysaccharide or lipopolysaccharide;Nomoto;Jap. J. clin. Med.,1981