实验动物科学 ›› 2017, Vol. 34 ›› Issue (03): 24-27.

• 研究 论著 • 上一篇    下一篇

MDV 感染 B19、B21 单倍型 SPF 鸡免疫器官中 miR-146b-5p 的变化规律

  

  1. ( 1. 牡丹江师范学院生命科学与技术学院,牡丹江 157011) ( 2. 中国农业科学院哈尔滨兽医研究所实验动物与比较医学团队,哈尔滨 150001)
  • 出版日期:2017-06-30 发布日期:2017-09-07
  • 基金资助:

    <p>基金项目: 本课题受黑龙江省科技计划项目( No. PC13S04) 和国家自然科学基金项目( No. 31500997) 资助</p>

The Variation of Mir-146B-5P in Immune Organs of B19 and B21 Haplotype SPF Chickens Infect with MDV

  • Online:2017-06-30 Published:2017-09-07

摘要: 摘要: 目的 分析 miR-146b-5p 在 B19( MD 易感) 与 B21( MD 抗性) 单倍型鸡感染 MDV 后的表达变化规律,并探讨其可能与 MD 抗性/易感性相关的分子机制。方法 我们在 MDV 超强毒株 Md5 攻毒实验和前期高通量测序分析发现,miR-146b-5p 表达量有明显差异,为此进一步利用实时荧光定量 PCR 技术,检测 MD 感染 B19 和 B21 单倍型鸡 5dpi、10dpi 和 21dpi,miR-146b-5p 在法氏囊、胸腺和脾脏组织中的表达量变化情况。结果 miR-146b-5p 在 5dpi、 10dpi 和 21dpi 实验组和对照组的表达量明显不同,miR-146b-5p 在 B21 实验组中的表达量要远高于对照组,且差异显著; 而 miR-146b-5p 在 B19 实验组中的表达量高于对照组但差异不显著。结论 MD 感染后,在不同免疫器官中 miR-146b-5p 的表达量可能存在组织特异性,不同鸡系之间在感染后也存在一定的差异,但具体机制尚需进一步深入研究。

关键词: <p>microRNA, MDV, 法氏囊, 脾脏, 胸腺</p>

Abstract: Abstract: Objective To analyze the miR-146b-5p in B19 ( MD susceptible) and B21 ( MD resistance) haplotype variation of the expression of chicken infected with MDV and explore the possible after the MD resistance / susceptibility associated molecular mechanism. Method Through MDV virulent strain Md5 poison attack experiments and previous high-throughput sequencing based differences in the expression of miR-146b-5p on the further use of real-time PCR technology to detect miR-146b-5p in B19 and B21 haplotypes chickens 5dpi,10dpi and 21 dpi bursa of fabricius thymus and spleen tissues ( experimental group) and the corresponding uninfected group ( control group) expression changes. Result MiR-146b-5p was significantly different in experimental group and control group at 5dpi,10dpi and 21dpi. The expression of miR-146b-5p in B21 group was much higher than that in control group,and the difference was significant. The expression of miR-146b-5p in B19 group was higher than that in control group,but the difference was not significant. Conclusion The expression of miR-146b-5p in different immune organs after MD infection may be tissue-specific,and there are some differences between different chicken lines after infection,but the specific mechanism needs further study.

Key words: <p>MicroRNA, MDV, bursa of fabricius, spleen, thymus</p>

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