食品科学 ›› 2006, Vol. 27 ›› Issue (1): 223-226.

• 营养卫生 • 上一篇    下一篇

香菇多糖L-2对荷瘤小鼠TNF-α和IL-2的影响

 阮征, 付晓芳, 周泉城, 胡筱波, 吴谋成   

  1. 华中农业大学食品科学技术学院; 南昌大学生命科学学院食品科学与工程系 ; 山东理工大学轻工与农业工程学院
  • 出版日期:2006-01-15 发布日期:2011-09-05

Effect of Polysaccharide L-2 from Lentinus edodes on TNF-α and IL-2

 RUAN  Zheng, FU  Xiao-Fang, ZHOU  Quan-Cheng, HU  Xiao-Bo, WU  Mou-Cheng   

  1. 1.College of Food Science and Technology, Huazhong Agricultural University;2.Department of Food Science and Engineering, College of Life Sciences, Nanchang University;3.School of Agriculture and Light Industry Engineering, Shandong University of Technology.
  • Online:2006-01-15 Published:2011-09-05

摘要: 我们提取纯化得到一种重均分子量为2.03×105、单糖为葡萄糖的香菇多糖级分(L-2)后,评价了香菇多糖L-2对荷S-180小鼠细胞免疫的影响。连续10d通过腹腔注射给予小鼠不同剂量的香菇多糖L-2(10mg/kg体重),测定了正常小鼠与荷S-180小鼠的血清中肿瘤坏死因子(TNF-α)和白介素2(IL-2)的含量,以及香菇多糖L-2对TNF-α和IL-2的mRNA表达的影响。与对照组小鼠相比,血清中TNF-α含量有显著增加,而血清中IL-2含量没有变化,与此同时,香菇多糖L-2可以上调TNF-α的mRNA的表达。结果揭示多糖L-2有增加TNF-α含量的作用,多糖增强免疫力与TNF-α含量增加以及在转录水平上调TNF-αmRNA的表达有关。

关键词: 香菇, 多糖, 肿瘤坏死因子, 白介素2

Abstract: The effects of the polysaccharide (L-2) extracted from Lentinus edodes on the immune response of Sarcoma 180- bearing mice were evaluated. Mice were treated with two doses of polysaccharide L-2 (1, 10mg/kg body weight) for 10 days. The concentration of tumor necrosis factor-alpha (TNF-α), interferon-2 (IL-2) in mice serum and TNF-α mRNA expression were determined. The concentration of TNF-α in serum increased significantly in two doses groups compared to the model control group, but IL-2 not. The level of TNF-α mRNA transcription increased significantly in two doses groups to the model control group. Results of these studies demonstrated the polysaccharide L-2 significantly promoted TNF-α production, immunity potentiating and anti-tumor effects of the polysaccharide L-2 were associated with its potentiation of TNF-α mRNA expression att het ranscriptionall evel.

Key words: Lentinus edodes, polysaccharide, tumor necrosis factor-alpha, interferon-2