畜牧兽医学报 ›› 2013, Vol. 44 ›› Issue (12): 1932-1938.doi: 10.11843/j.issn.0366-6964.2013.12.011

• 遗传繁育 • 上一篇    下一篇

沙葱多糖对绵羊外周血淋巴细胞IFN-γSTAT1 mRNA表达的影响

赵飞艳,敖长金*,包美艳,萨茹丽   

  1. (内蒙古农业大学 动物科学学院,呼和浩特 010018)
  • 收稿日期:2013-05-13 出版日期:2013-12-23 发布日期:2013-12-23
  • 通讯作者: 敖长金,教授,博士生导师,E-mail: changjinao@yahoo.com.cn
  • 作者简介:赵飞艳(1984-),女,湖北当阳人,博士生,主要从事动物营养与免疫研究,E-mail: zhaofeiyan@sohu.com
  • 基金资助:

    国家自然科学基金(30760173)

Effect of Allium mongolicum Regel Polysaccharides on IFN-γ and STAT1 mRNA Expression in Peripheral Blood Lymphocyte of Sheep

ZHAO Fei-yan, AO Chang-jin*, BAO Mei-yan, SA Ru-li   

  1. (College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China)
  • Received:2013-05-13 Online:2013-12-23 Published:2013-12-23

摘要:

本研究在体外条件下研究了沙葱多糖对绵羊外周血淋巴细胞IFN-γ与STAT1 mRNA表达的影响,旨在从分子水平上探讨沙葱多糖的抗肿瘤作用机制。试验用不同浓度的沙葱多糖(050100150200250 μg·mL-1)体外作用于绵羊外周血淋巴细胞,作用持续12244872 h后分别提取细胞的总RNA,以β-actin作为内参基因,用实时荧光定量RT-PCR方法测定IFN-γ与STAT1 mRNA相对表达量的变化,并对IFN-γ与STAT1PCR产物进行测序分析。结果显示,沙葱多糖能够显著提高IFN-γ与STAT1 mRNA相对表达量(P<0.05);随着沙葱多糖浓度的升高,IFN-γSTAT1  mRNA相对表达量基本呈升高的趋势,且测序分析结果证明扩增产物为羊的IFN-γ与STAT1基因序列。结果表明,沙葱多糖可显著促进绵羊外周血淋巴细胞IFN-γ与STAT1 mRNA的表达,进而发挥其抗肿瘤作用。

Abstract:

The experiment was conducted to study the effects of Allium mongolicum Regel polysaccharides on the mRNA expression of IFN-γ and STAT1 in peripheral blood lymphocyte in vitro,and to discuss the possible molecular mechanism of its anti-tumor function in sheep. Different concentrations (0, 50, 100, 150, 200, 250 μg·mL-1 ) of Allium mongolicum Regel polysaccharides were added in sheep peripheral blood lymphocytes cultures, and total RNA in cells was extracted with β-actin as an internal reference real-time PCR was adopt to test. The changes of relative mRNA expressions of IFN-γ and STAT1 in different culrured times (12, 24, 48, 72 h) were tested by real-time PCR and the PCR products of IFN-γ and STAT1 were sequenced and analyzed. The relative mRNA expressions of IFN-γ and STAT1 in Allium mongolicum Regel polysaccharides treatment were increased significantly (P<0.05) compared with control group (0 μg·mL-1), and showed an upward trend with the increase of Allium mongolicum Regel polysaccharides concentration. The sequencing analysis proved that the PCR products were IFN-γ and STAT1 gene sequence in sheep. The results suggested that Allium mongolicum Regel polysaccharides could significantly promote the mRNA expression of IFN-γ and STAT1 in sheep peripheral blood lymphocytes of sheep, may thereby play an important role in anti-tumor effect.

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