›› 2014, Vol. 41 ›› Issue (11): 175-178.

• 生理生化 • 上一篇    下一篇

重组鸡α干扰素/白细胞介素-2融合蛋白对鸡外周血T淋巴细胞亚群的影响研究

杨晓璐1,2, 闫若潜2, 吴志明2, 刘梅芬2, 张代宝3, 张书阳1,2, 王淑娟2, 赵雪丽2, 刘毅1,2   

  1. 1. 河南科技大学动物科技学院, 河南洛阳 471003;
    2. 河南省动物疫病预防控制中心, 河南郑州 450008;
    3. 郑州市动物疫病预防控制中心, 河南郑州 450008
  • 收稿日期:2014-04-15 出版日期:2014-11-20 发布日期:2014-12-06
  • 通讯作者: 闫若潜 E-mail:yrq1688@126.com
  • 作者简介:杨晓璐(1989-),女,河南人,硕士生,研究方向:动物疫病病原分子生物学。
  • 基金资助:
    河南省科技创新人才计划项目(豫科人组[2011]1号)。

The Influence for Chickens' T Lymphocyte Subsets in Peripheral Blood after Inoculated with the Recombinant Chicken Interferon-α/Chicken Interleukin-2 Complex Protein

YANG Xiao-lu1,2, YAN Ruo-qian2, WU Zhi-ming2, LIU Mei-fen2, ZHANG Dai-bao3, ZHANG Shu-yang1,2, WANG Shu-juan2, ZHAO Xue-li2, LIU Yi1,2   

  1. 1. College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471003, China;
    2. Henan Centre for Animal Disease Control & Prevention, Zhengzhou 450008, China;
    3. Zhengzhou Centre for Animal Disease Control & Prevention, Zhengzhou 450008, China
  • Received:2014-04-15 Online:2014-11-20 Published:2014-12-06

摘要: 为了研究重组鸡α干扰素/白细胞介素-2融合蛋白(rChIFN-α-Linker-ChIL-2,重组融合蛋白)对SPF鸡外周血T淋巴细胞亚群含量影响,本研究采用流式细胞术对重组融合蛋白(第2组)和rChIFN-α蛋白(第3组)注射14日龄SPF鸡后不同时间对各试验组鸡外周血T淋巴细胞(PBLC)中CD3+CD4+、CD3+CD8+百分含量以及CD4+/CD8+比值进行检测。结果表明,与对照组相比,重组融合蛋白和rChIFN-α蛋白在鸡体内接种后3~14 d均可明显提高鸡外周血T淋巴细胞中CD3+CD4+细胞百分含量,降低CD3+CD8+细胞的百分含量,提高CD4+/CD8+比值;接种后3~7 d期间,第2组鸡的CD3+CD4+、CD3+CD8+细胞含量及CD4+/CD8+比值与PBS对照组(第1组)相比差异均极显著(P<0.01),第3组与第1组相比差异均显著(P<0.05)。以上结果表明,重组融合蛋白和rChIFN-α蛋白接种鸡体后均可显著影响鸡PBLC中淋巴细胞亚群百分含量,提高CD4+/CD8+比值,增强机体的细胞免疫功能;重组融合蛋白对鸡淋巴细胞亚群百分含量、CD4+/CD8+比值影响程度和细胞免疫功能的增强作用优于rChIFN-α蛋白;重组融合蛋白在体内发挥了鸡α干扰素和白细胞介素-2对细胞免疫功能的协同增强作用。

关键词: 重组鸡α干扰素/白细胞介素-2融合蛋白; 重组鸡α干扰素蛋白; T淋巴细胞亚群; CD4+/CD8+比值; 免疫功能

Abstract: To explore the influence of recombinant chicken interferon-α/chicken interleukin-2 fusion protein (rChIFN-α-Linker-ChIL-2 protein, recombinant fusion protein) on the percentage content of peripheral T lymphocyte subsets (PBLC) of SPF chicken,the flow cytometry was used to detected the percentage contents of CD3+CD4+, CD3+CD8+ and the CD4+/CD8+ ratio in PBLC at different days post injection in the 14-day-old SPF chicken injected with rChIFN-α-Linker-ChIL-2 protein (group 2) and recombinant chicken interferon α (rChIFN-α) protein (group 3). The results indicated that the recombinant fusion protein and rChIFN-α protein could increase the percentage content of CD3+CD4+ T lymphocyte, decrease the percentage content of CD3+CD8+ T lymphocyte, improve CD4+ /CD8+ T lymphocyte ratio during 3 to 14 d post injection. The percentage contents of CD3+CD4+, CD3+CD8+ and CD4+/CD8+ ratio in chickens of group 2 were significantly different from the PBS control group (group 1) (P<0.01), and were notably different from group 3 during 3 to 7 d post injection (P<0.05). These results showed that both the rChIFN-α-Linker-ChIL-2 protein and rChIFN-α protein could affect the percentage contents of lymphocyte subsets, improve CD4+/CD8+ ratio, enhance the cellular immune function in chicken. The influences of rChIFN-α-Linker-ChIL-2 protein on the percentage contents of CD3+CD4+ and CD3+CD8+ T lymphocyte, and CD4+/CD8+ value were notable higher than rChIFN-α, which suggested that recombinant fusion protein play a synergistic role of interferon alpha and interleukin-2 on the cellular immune function by this pathway in chicken.

Key words: recombinant chicken interferon-α/chicken interleukin-2 fusion protein; recombinant chicken interferon α protein; T lymphocyte subsets; CD4+/CD8+ ratio; immune function

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