ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2013, Vol. 44 ›› Issue (12): 1932-1938.doi: 10.11843/j.issn.0366-6964.2013.12.011

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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

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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