کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5137130 | 1494533 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural characterization and macrophage immunomodulatory activity of a polysaccharide isolated from Gracilaria lemaneiformis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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چکیده انگلیسی
Polysaccharides from Gracilaria lemaneiformis possess various beneficial bioactive functions, but the immunomodulatory activity remains incompletely known. In the present study, a new low molecular-weight sulfated polysaccharide named as GLP-2 was isolated from G. lemaneiformis. The chemical composition and structural characteristics of GLP-2 were determined by high-performance gel permeation chromatography (HPGPC), gas chromatography (GC), infrared (IR) spectrum, methylation and nuclear magnetic resonance (NMR) analyses. In addition, the immunomodulatory activity and underlying mechanism of GLP-2 were examined using murine macrophage RAW264.7 cells. The results indicated GLP-2 could significantly improve the proliferation and pinocytic capability of RAW264.7 cells, and promote the production of reactive oxygen species (ROS), nitric oxide (NO), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) by activating iNOS, IL-6 and TNF-α gene expressions. These results suggested that GLP-2 could be developed as a potent immunomodulatory agent for use in functional foods and dietary supplements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Functional Foods - Volume 33, June 2017, Pages 286-296
Journal: Journal of Functional Foods - Volume 33, June 2017, Pages 286-296
نویسندگان
Yinglang Ren, Guiqing Zheng, Lijun You, Lingrong Wen, Chao Li, Xiong Fu, Lin Zhou,