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Abstract Title:

Regulation of RAW 264.7 cell-mediated immunity by polysaccharides from Agaricus blazei Murill via the MAPK signal transduction pathway.

Abstract Source:

Food Funct. 2017 Apr 19 ;8(4):1475-1480. PMID: 28322382

Abstract Author(s):

Feier Cheng, Xiaoyan Yan, Miaoqing Zhang, Mingchang Chang, Shaojun Yun, Junlong Meng, Jingyu Liu, Cui-Ping Feng

Article Affiliation:

Feier Cheng

Abstract:

Agaricus blazei Murill (ABM) is a common anticancer folk remedy. Its active ingredients, i.e., polysaccharides, have been isolated and exhibit indirect tumor-suppressing activity via immunological activation. The effects of polysaccharides derived from A. blazei Murill (ABMP) on RAW 264.7 cells were examined by western blotting and real-time reverse transcription polymerase chain reaction (RT-PCR). The effects of 500, 1000, and 2000μg mLABMP on the growth of RAW 264.7 cells were evaluated by measuring the ODvalue; the optimum concentration was found to be 1000μg mL. Based on the RT-PCR results, the expression levels of JNK, ERK, and p38 decreased substantially in lipopolysaccharide (LPS)-induced RAW 264.7 cells treated with ABMP. In RAW 264.7 cells treated with LPS, the protein expression levels of JNK, ERK, and p38 were decreased, as were the levels of phosphorylated JNK, ERK, and p38. These results indicate that the MAPK signal transduction pathway is a potential mechanism by which ABMP regulates the cell-mediated immunity of RAW 264.7 cells.

Study Type : In Vitro Study

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Sayer Ji
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