食品科学 ›› 2013, Vol. 34 ›› Issue (23): 305-308.doi: 10.7506/spkx1002-6630-201323061

• 营养卫生 • 上一篇    下一篇

海蜇糖蛋白对小鼠脾脏细胞因子mRNA表达的影响

任国艳,邵 征,曹 力,曹 利,张 凡,郭金英,樊金玲,陈秀金,赵瑞红   

  1. 河南科技大学食品与生物工程学院,河南 洛阳 471003
  • 收稿日期:2013-07-16 修回日期:2013-11-04 出版日期:2013-12-15 发布日期:2014-01-03
  • 通讯作者: 任国艳 E-mail:guoyan.ren@yahoo.com.cn
  • 基金资助:

    国家自然科学基金项目(31000765);河南科技大学青年基金资助项目(2010QN0001)

Effects of A Glycoprotein from Jellyfish (Rhopilema esculentum) on Cytokine mRNA Expression in BALB/c Mice

REN Guo-yan,SHAO Zheng,CAO Li,CAO Li,ZHANG Fan,GUO Jin-ying,FAN Jin-ling,CHEN Xiu-jin, ZHAO Rui-hong   

  1. College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471003, China
  • Received:2013-07-16 Revised:2013-11-04 Online:2013-12-15 Published:2014-01-03
  • Contact: Guo-Yan REN E-mail:guoyan.ren@yahoo.com.cn

摘要:

研究海蜇糖蛋白(JGP-III)对BALB/c小鼠脾脏淋巴细胞细胞因子mRNA表达的影响,探讨JGP-Ⅲ对小鼠的免疫调节机理。选用54只BALB/c小鼠(18~22g,SPF级),随机分为6组:模型对照组、正常对照组、阳性对照组(左旋咪唑25mg/(kg·d),以体质量计)、低剂量组(JGP-Ⅲ 10mg/(kg·d))、中剂量组(JGP-Ⅲ 50mg/(kg·d))和高剂量组(JGP-Ⅲ 100mg/(kg·d)),每组9只。饲养21d后,无菌取脾脏,分离淋巴细胞,采用荧光定量RT-PCR法分析其细胞因子IL-2、IL-12、IFN-γ、IL-4、IL-6和IL-10 mRNA的相对表达量。结果显示:通过3个剂量组和3个对照组中细胞因子mRNA表达水平的对比,得出海蜇糖蛋白JGP-III能够促进细胞因子IL-2、IL-12、IFN-γ的mRNA表达水平,而抑制IL-4、IL-6和IL-10 mRNA的表达水平,且具有剂量依赖关系。进而推测JGP-Ⅲ可能是通过调节淋巴细胞Th1/Th2细胞因子mRNA的表达水平,来提高机体免疫能力。

关键词: 海蜇, 糖蛋白, 细胞因子, mRNA表达

Abstract:

In a previous study, we isolated a glycoprotein named JGP-III from jellyfish (Rhopilema esculentum). The specific
aim of the present study was to investigate the roles of JGP-III in the immunoregulatory mechanism in BALB/c mice by
investigating its effects on the mRNA expression of the Th1- and Th2-cytokines in the spleen lymphocytes of these mice. A total of
54 healthy BALB/c mice (SPF, 18-22 g) were randomly divided into 6 groups with 9 mice in each group: normal control, model
control, positive control, low dose (10 mg/(kg·d)), moderate dose (50 mg/(kg·d)) and high dose (100 mg/(kg·d)) groups, respectively.
After 21 days of these treatments, lymphocytes were prepared from the spleen of these mice and total RNA was
isolated from their lymphocytes. Fluorescent quantitative real-time polymerase chain reaction (FQ-RT-PCR) technique was
used to analyze the relative mRNA expression of Th1-cytokines (IL-2, IL-12 and IFN-γ) and Th2-cytokines (IL-4, IL-6 and
IL-10). Our results showed that JGP-Ⅲ promoted the mRNA expression levels of Th1-cytokines but inhibited the mRNA
expression levels of Th2-cytokines. Moreover, our results suggest that JGP-Ⅲ can improve the body’s immune function
probably by regulating the mRNA expression levels of Th1-/Th2-cytokines in spleen lymphocytes.

Key words: jellyfish, glycoprotein, cytokine, mRNA expression

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