Abstract
Two antitumor polysaccharide-protein complexes, PSPC and PSK from mushrooms, were compared for their modulating effect on cytokine and cytokine receptor gene expression. RNA samples were isolated from the splenocytes and peritoneal exudate cells of the untreated or treated mice. Reverse transcription-polymerase chain reaction (RT-PCR) was used to analyze the cytokine gene expression. Nine out of 17 cytokine mRNAs and 5 out of 6 cytokine receptor mRNAs were detected in the splenocytes and peritoneal exudate cells from both untreated and treated mice. However, IL-4 was only detected in the splenocytes while IL-7 and IL-1R(typeI) were only detected in the peritoneal exudate cells. Among the 9 cytokine genes, the expression level of M-CSF was up-regulated in splenocytes and peritoneal exudate cells of the mice by PSPC and PSK. The expression level of TNF-ga was only up-regulated in the peritoneal exudate cells by PSK, but not by PSPC.
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