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中国农学通报 ›› 2022, Vol. 38 ›› Issue (20): 112-116.doi: 10.11924/j.issn.1000-6850.casb2021-0502

所属专题: 生物技术 水产渔业 畜牧兽医

• 畜牧·动物医学·蚕·蜂 • 上一篇    下一篇

牦牛转移因子对藏绵羊外周血淋巴细胞转化功能的影响

常建军(), 文英, 李莉   

  1. 青海大学农牧学院,西宁 810016
  • 收稿日期:2021-05-12 修回日期:2022-01-26 出版日期:2022-07-15 发布日期:2022-08-23
  • 作者简介:常建军,男,1969年出生,安徽萧县人,教授,硕士,研究方向:动物性食品卫生检验和安全性。通信地址:810016 青海省西宁市宁大路251号 青海大学,E-mail: cjjlhwcs@126.com
  • 基金资助:
    青海省科技厅项目“青海绵羊规模化养殖中主要疫病防控关键技术集成示范与推广”(2018-NK-125);青海省农业农村厅项目“青海省绵羊养殖中羊口疮疫病防控与免疫技术研究”(NMSY-2018-07)

Effects of Yak Transfer Factor on Tibetan Sheep Peripheral Blood Lymphocyte Proliferation

CHANG Jianjun(), WEN Ying, LI Li   

  1. Agriculture and Animal Husbandry College of Qinghai University, Xining 810016
  • Received:2021-05-12 Revised:2022-01-26 Online:2022-07-15 Published:2022-08-23

摘要:

为研究牦牛转移因子(transfer factor,TF)对藏绵羊外周血淋巴细胞增殖的作用,试验采用MTT法探索不同浓度淋巴细胞、犊牛血清(FCS)、刀豆蛋白A(Concanavalin A,ConA)对淋巴细胞增殖的影响。在最佳条件下,探讨牦牛TF对藏绵羊外周血淋巴细胞增殖的影响。结果表明,当藏绵羊淋巴细胞浓度为5.4×106个/mL,犊牛血清含量为8%,ConA为1 μg/mL时,刺激效果最佳,且TF单独或协同丝裂原时,对淋巴细胞都有促进增殖的效果,且最佳浓度为1.5 mg/mL。体内注射TF后,各剂量组在注射第3天时,淋巴细胞再次受到TF单独或协同ConA刺激时,其增殖效果与细胞组单独增殖效果比较,差异不显著(P>0.05),至第5~7天时,其增殖效果明显高于细胞组,差异显著(P<0.05)。注射2 mL剂量组转化增殖效果优于1 mL和3 mL剂量组,差异显著(P<0.05)。说明牦牛TF能够有效增强机体免疫力,是一种很好的免疫增强剂。

关键词: 牦牛, 转移因子, 淋巴细胞增殖, 藏绵羊外周血

Abstract:

To investigate the effects of yak transfer factor (TF) on the proliferation of peripheral blood lymphocytes in Tibetan sheep, the effects of lymphocytes, fetal calf serum (FCS) and concanavalin A(ConA) of different concentrations on promoting lymphocyte proliferation were tested by MTT test. Under optimal conditions, the effect of yak TF on peripheral blood lymphocyte proliferation in Tibetan sheep was explored. The results of the experiment demonstrated that, under the combination of lymphocyte, ConA and FCS of 5.4×106 unit/mL, 1 μg/mL and 8% respectively, the best stimulation effect could be achieved. Yak TF only or TF with ConA of 1.5 mg/mL (the best concentration) could also promote lymphocyte proliferation. 3 days after yak TF was injected in each dose group, the proliferation effect of sheep lymphocytes under the stimulation of TF only or TF with ConA became stronger, but the difference was not significant compared with the individual proliferation effect of cell groups (P>0.05). The effect was significantly higher than that of the cell groups at 5-7 days after the injection (P<0.05). The conversion proliferation effect of the 2 mL dose group was better than that of the 1 mL and 3 mL groups, and the difference was significant (P<0.05). Yak TF can effectively enhance the immunity.

Key words: yak, transfer factor, lymphocyte proliferation, Tibetan sheep peripheral blood

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