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Chemical composition of Cyclocarya paliurus polysaccharide and inflammatory effects in lipopolysaccharide-stimulated RAW264.7 macrophage.

Abstract：

:This study was designed to study the chemical composition of Cyclocarya paliurus polysaccharide and inflammatory effects in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophage. A new elution (0.3% NaCl aqueous solution) of Cyclocarya paliurus polysaccharide (CPP-3) was characterized by different methods such as fourier transform infrared spectra (FT-IR), UV-vis, gas chromatography-mass spectrometry (GC-MS), high performance gel chromatography (HPGLC) and scanning electron microscopy (SEM). Cell viability was measured by MTT test, phagocytosis assay was measured by Neutral red uptake assay, nitrite was measured by Griess assay, TNF-α and IL-1β analysis were measured by ELISA, PGE2 was measured by enzyme immunoassay system. The results showed that CPP-3 was comprised of two polysaccharides with average molecular weight (Mw) of 5.69×104Da and 4.94×103Da. CPP-3 contains six monosaccharides, of which are rhamnose (Rha), arabinose (Ara), xylose (Xyl), mannose (Man), glucose (Glu), galactose (Gal), the molar ratio of six monosaccharides is 0.060:0.109:0.053:0.128:0.293:0.357. CPP-3 increased the amount of NO released from mouse macrophage RAW264.7 and significantly increased the levels of TNF-α, IL-1β and PGE2 (P<0.01). CPP-3 suppressed LPS-stimulated RAW264.7 macrophage to release NO, TNF-α, IL-1β and PGE2 (P<0.01). CPP-3 and LPS accounted for synergistic effect on the release of NO and TNF-α, CPP-3 and LPS accounted for antagonistic effect on the release of IL-1β and PGE2.

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Xiong L,Ouyang KH,Jiang Y,Yang ZW,Hu WB,Chen H,Wang N,Liu X,Wang WJ

doi

10.1016/j.ijbiomac.2017.10.055

subject

Has Abstract

pub_date

2018-02-01 00:00:00

pages

1898-1907

issue

Pt B

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(17)33510-9

journal_volume

107

pub_type

杂志文章

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