J Hamuro, M Röllinghoff, H Wagner, M Seitz, W Grimm, D Gemsa
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Depressed prostaglandin release from peritoneal cells induced by a T cell adjuvant, lentinan.
PGE and PGF release from peritoneal exudate cells was studied in mice after injection with two beta (1-3) glucans, the antitumor active lentinan and the inactive pachyman, 4 days after injection of both polysaccharides, the spontaneous and phagocytosis-induced PGE and PGF release was markedly suppressed. However, only the immunopotentiator lentinan induced peritoneal exudate cells which exhibited a longer lasting diminished PG release. The data suggest that the T cell adjuvant lentinan may potentiate cellular immune responses by reducing synthesis of immune suppressive prostaglandins from peritoneal exudate cells.
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