Journal
EUROPEAN JOURNAL OF PHARMACOLOGY
Volume 471, Issue 3, Pages 217-222Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0014-2999(03)01827-2
Keywords
Lycium barbarum; polysaccharide-protein complex; cytokine; gene expression; bioassay
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The production of cytokine is a key event in the initiation and regulation of an immune response. Many compounds are now used routinely to modulate cytokine production, and therefore the immune response, in a wide range of diseases, such as cancer. Interleukin-2 and tumor necrosis factor-alpha are two important cytokines in antitumor immunity. In this study, the effects of Lycium barbarum polysaccharide-protein complex (LBP3p) on the expression of interleukin-2 and tumor necrosis factor-alpha in human peripheral blood monormclear cells were investigated by reverse transcription polymerase chain reaction (RT-PCR) and bioassay. Administration of LBP3p increased the expression of interleukin-2 and tumor necrosis factor-alpha at both mRNA and protein levels in a dose-dependent manner. The results suggest that LBP3p may induce immune responses and possess potential therapeutic efficacy in cancer. (C) 2003 Elsevier Science B.V. All rights reserved.
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