中国农业科学 ›› 2020, Vol. 53 ›› Issue (15): 3180-3186.doi: 10.3864/j.issn.0578-1752.2020.15.017

• 畜牧·兽医·资源昆虫 • 上一篇    下一篇

松针多糖对鸡巨噬细胞HD11的天然免疫调节

崔小珍1(),栾艳2,李婷婷3,杨裕1,关文超1,张凯1,王福传1,宋献艺1()   

  1. 1山西省农业科学院饲料兽药研究所,太原 030036
    2湖北省宜昌市夷陵区畜牧技术推广站,湖北宜昌 443100
    3山西省农业科学院畜牧兽医研究所,太原 030032
  • 收稿日期:2019-08-23 接受日期:2020-06-30 出版日期:2020-08-01 发布日期:2020-08-06
  • 通讯作者: 宋献艺
  • 作者简介:崔小珍,Tel:0351-7187658;E-mail: cuiyuchan.002@163.com
  • 基金资助:
    山西省重点研发计划项目(201903D421040);山西省农业科学院博士研究基金(YBSJJ1711);山西省重点研发计划重点项目(201603D21109-1);山西省面上青年基金项目(201701D221198)

Innate Immunomodulatory Effect of Pine Needle Polysaccharide on Chicken Macrophage HD11

CUI XiaoZhen1(),LUAN Yan2,LI TingTing3,YANG Yu1,GUAN WenChao1,ZHANG Kai1,WANG FuChuan1,SONG XianYi1()   

  1. 1Feed and Veterinary Medicine Research Institute of Shanxi Academy of Agricultural Sciences, Taiyuan 030036
    2Animal Husbandry Technology Promotion Station of Yiling, Yichang 443100, Hubei
    3Animal Husbandry and Veterinary Science Research Institute of Shanxi Academy of Agricultural Sciences, Taiyuan 030032
  • Received:2019-08-23 Accepted:2020-06-30 Online:2020-08-01 Published:2020-08-06
  • Contact: XianYi SONG

摘要:

【目的】探讨松针多糖对鸡巨噬细胞HD11的天然免疫功能的影响,以期为松针多糖在肉鸡疾病防治方面应用提供科学依据。【方法】试验采用不同浓度的的松针多糖作用于巨噬细胞HD11,试验分为空白对照组、阳性对照组(终浓度为1 μg·mL-1的LPS)和松针多糖组(终浓度分别为25、50、100、200、400 μg·mL-1的松针多糖)。噻唑蓝(MTT)检测巨噬细胞HD11细胞活性、Griess法检测巨噬细胞HD11细胞上清液中一氧化氮(NO)分泌量、中性红吞噬试验检测巨噬细胞HD11吞噬活性,酶联免疫(ELISA)检测巨噬细胞HD11细胞上清液中干扰素-α(IFN-α)、一氧化氮合酶(iNOS)、白介素-10(IL-10)、白介素-6(IL-6)和肿瘤坏死因子-α(TNF-α)的含量,荧光定量PCR技术检测HD11细胞中iNOS mRNA表达。【结果】 MTT试验结果表明:与空白对照组相比,不同浓度的松针多糖(25、50、100、200、400 μg·mL-1)对细胞活性没有影响,说明在25-400 μg·mL-1范围内对巨噬细胞没有毒性,可以进行免疫调节作用实验。免疫调节作用试验结果表明:与空白对照组相比,不同浓度的松针多糖极显著(P<0.01)增加了NO释放量和细胞吞噬活性,极显著(P<0.01)或显著(P<0.05)提高了细胞因子IFN-α的含量和iNOS的含量及mRNA的表达量,极显著(P<0.01)或显著(P<0.05)降低了细胞因子IL-10的分泌量。当松针多糖浓度在50、100、200、400 μg·mL-1浓度时,细胞因子IL-6和TNF-α的含量极显著(P<0.01)高于空白对照组。与阳性对照组相比,不同浓度的松针多糖极显著(P<0.01)降低NO释放量,极显著(P<0.01)或显著(P<0.05)降低了细胞因子IFN-α的含量、iNOS的含量及mRNA表达量和IL-10含量。当松针多糖浓度在25、50、100 μg·mL-1浓度时,细胞吞噬活性极显著(P<0.01)低于阳性对照组,细胞因子IL-6的含量极显著(P<0.01)低于阳性对照组。当松针多糖浓度在25、50、100、200 μg·mL-1浓度时,细胞因子TFN-α的含量极显著(P<0.01)低于阳性对照组。【结论】松针多糖能显著提高巨噬细胞HD11的天然免疫调节能力,且存在剂量依赖效应。

关键词: 松针多糖, 巨噬细胞, 免疫调节, 细胞因子

Abstract:

【Objective】 The innate immunomodulatary effect of pine needle polysaccharide on chicken macrophage HD11 were examined to provide theoretical ground for broiler disease prevention and treatment.【Method】Different concentrations of pine needle polysaccharide were used to treat the macrophage HD11. The experiment was divided into blank control group, positive control group (1 μg·mL-1 was the final concentration of LPS), and pine needle polysaccharide group (25, 50, 100, 200 and 400 μg·mL-1 were the final concentration of pine needle polysaccharide). MTT method was used to evaluate the effect of pine needle polysaccharide on the proliferation of HD11 cells. the content of NO in the supernatant of HD11 cells was determined, phagocytic function was detected by neutral red, the release of IFN-α, iNOS, IL-10, IL-6 and TNF-α were detected by ELISA, the levels of iNOS mRNA in the HD11 cells were detected by PCR.【Result】The results of MTT show, there was no significant difference among all groups (25, 50, 100, 200, 400 μg·mL-1) in proliferation of HD11 cells. It indicated that there was no toxicity to macrophages in the range of 25-400 μg·mL-1, and the immunoregulation experiment could be carried out. The immunomodulatory test results showed that, the concentration of NO, phagocytic function were higher significantly (P<0.01) than control group. The release of cytokines IFN-α and iNOS were higher significantly (P<0.01 or P<0.05) than control group. The amount of cytokines IL-10 was lower significantly (P<0.01 or P<0.05) than control group. The content of cytokines IL-6 and TNF-α were higher significantly (P<0.01) than control group when the pine needle polysaccharide concentration were 50, 100, 200, 400 μg·mL-1. the concentration of NO was lower significantly (P<0.01) than positive control group. The release of cytokines IFN-α, iNOS and IL-10 were lower significantly (P<0.01 or P<0.05) than positive control group. The phagocytic function and the content of cytokines IL-6 was lower significantly (P<0.01) than positive control group when the pine needle polysaccharide concentration were 25, 50, 100 μg·mL-1. The content of cytokines TNF-α was lower significantly (P<0.01) than positive control group when the pine needle polysaccharide concentration were 25, 50, 100, 200 μg·mL-1.【Conclusion】 The results showed that pine needle polysaccharide can activate macrophages and enhance the innate immune function of macrophages HD11, and there was a dose-dependent effect.

Key words: needles polysaccharide, macrophage, immune regulation, cytokine