Eur J Pharmacol. 2003 Jun 27;471(3):217-22.

A polysaccharide-protein complex from Lycium barbarum upregulates cytokine expression in human peripheral blood mononuclear cells.

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Institute of Pharmacy, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. ganlu07@163.com

Abstract

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 (LBP(3p)) on the expression of interleukin-2 and tumor necrosis factor-alpha in human peripheral blood mononuclear cells were investigated by reverse transcription polymerase chain reaction (RT-PCR) and bioassay. Administration of LBP(3p) 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 LBP(3p) may induce immune responses and possess potential therapeutic efficacy in cancer.

PMID:: 12826241; [PubMed - indexed for MEDLINE]

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