›› 2010, Vol. 30 ›› Issue (2): 100-104.

• 论文 • 上一篇    下一篇

重组表达SOD对野生小家鼠精子的冷冻保护作用

  

  1. 1.华东理工大学生物工程学院,上海 200023;2.上海市计划生育科学研究所,国家人口计生委计划生育药具重点实验室,上海 200032;3.东华大学化学化工与生物工程学院,上海 201620
  • 收稿日期:2009-09-08 出版日期:2010-02-28 发布日期:2010-02-28
  • 基金资助:
    上海市科技发展基金实验动物研究项目(071409004)

The Protective Effect of Recombinant SOD on Frozen Sperm from Mus musculus

  1. 1.Biological Engineering College;East China University of Science and Technology,Shanghai 200237, China; 2.NPFPC Key Laboratory of Contraceptives and Devices,Shanghai Institute of Planned Parenthood Research Shanghai 200032, China; 3. College of Chemistry,Chemical Engineering and Biotechnologe,Donghua University,Shanghai 201620, China
  • Received:2009-09-08 Online:2010-02-28 Published:2010-02-28

摘要: 目的 探讨重组表达的MnSOD或CuZnSOD对野生小家鼠精子冷冻损伤的保护作用.方法 以R18S3为基础冷冻保护剂,分别添加不同浓度重组表达的MnSOD或CuZnSOD,通过对各组ICR小鼠冻融精子的活力、质膜完整性、DNA损伤的比较,筛选出两种SOD的合理浓度,并将其添加于野生小家鼠的精子冷冻保护液中,观察添加SOD后,冻融野生小家鼠精子活力、质膜完整性、DNA损伤以及体外受精率的变化.结果 添加100U CuZnSOD和200UMnSOD后野生小家鼠冻融精子的活力以及质膜完整性都有显著性提高(P<0.05);添加200U MnSOD野生小家鼠冻融精子的体外受精率与对照组相比有显著提高(P<0.05),而添加100U CuZnSOD体外受精率则无显著变化.结论 在小鼠精子冷冻培养液中添加200U重组表达的MnSOD浓度,对野生小鼠精子冷冻损伤具有一定的保护作用.

关键词: SOD, 野生小鼠, 精子冷冻

Abstract: Objectctive To explore the protective effect of the recombinant MnSOD or CuZnSOD on the cryopreservation of wild mice sperm. Methods The R18S3 added with different concentrations of recombinant MnSOD or CuZnSOD was used as cryoprotectant to select two of the best concentra-tion of SOD through comparison of the motility,membrane integrity, DNA damage of frozen-thawed ICR mice sperm in each group. Results The motility and membrane integrity of frozen-thawed wild mice sperm increased significantly (P<0.05) adding with 100U CuZnSOD and 200U MnSOD in R18S3 compared to the control group. While there were no difference in the group of R18S3 with 100 U CuZnSOD adding,only in the group of R18S3 adding with 200U MnSOD the fertility rate of frozen-thawed sperm significantly increased compared with the control group (P<0.05). Conclusion The cryoprotectant adding with 200 U recombinant MnSOD has a protective effect on the cryopreservation of wild mice sperm.

Key words: SOD, Mus musculus;Sperm cryopreservation