实验动物与比较医学 ›› 2026, Vol. 46 ›› Issue (2): 271-278.DOI: 10.12300/j.issn.1674-5817.2025.088

• 动物实验技术与方法 • 上一篇    下一篇

猪抑制素多克隆抗体对C57BL/6J小鼠超数排卵的增效作用

赵赫(), 张涛, 李丽, 肖宇宙, 安学芳, 张帆()()   

  1. 中国科学院武汉病毒研究所, 武汉 430070
  • 收稿日期:2025-06-10 修回日期:2025-09-11 出版日期:2026-04-25 发布日期:2026-04-18
  • 通讯作者:
    张 帆(1985—),男,硕士,高级实验师,主要从事实验动物质量控制与管理工作。E-mail: zhangf@wh.iov.cn。ORCID:0009-0002-4393-3081
  • 作者简介:赵 赫(1987—),男,硕士,实验师,主要从事基因工程小鼠管理工作。E-mail: zhaohe@wh.iov.cn。ORCID:0009-0001-2390-1018
  • 基金资助:
    国家重点研发计划“基础科研条件与重大科学仪器设备研发”重点专项“实验动物质量精准监管与安全性评价关键技术研究”(2024YFF0728800);湖北省科技厅项目“基因工程小鼠辅助生殖关键试剂优化及质量控制研究”(2025CFC022)

Enhancement Effect of Porcine Inhibin Polyclonal Antibody on Superovulation in C57BL/6J Mice

ZHAO He(), ZHANG Tao, LI Li, XIAO Yuzhou, AN Xuefang, ZHANG Fan()()   

  1. Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430070, China
  • Received:2025-06-10 Revised:2025-09-11 Published:2026-04-25 Online:2026-04-18
  • Contact: ZHANG Fan (ORCID: 0009-0002-4393-3081), E-mail: zhangf@wh.iov.cn

摘要:

目的 制备兔抗猪抑制素多肽偶联钥孔血蓝蛋白(keyhole limpet hemocyanin,KLH)多克隆抗体,探究其对C57BL/6J小鼠超数排卵的影响。 方法 将人工合成的猪抑制素多肽偶联KLH蛋白免疫新西兰白兔,制备抗抑制素血清(anti-inhibin serum,AIS,即抑制素多克隆抗体)。将纯化后的AIS联合孕马血清促性腺激素(pregnant mare serum gonadotropin,PMSG)经腹腔注射雌性C57BL/6J小鼠,48 h后再注射人绒毛膜促性腺激素(human chorionic gonadotropin,hCG)诱导超数排卵,15 h后收集并计数超数排卵获得的卵母细胞数;在体外受精24 h后检测2-细胞期胚胎数。 结果 将KLH免疫新西兰白兔后制备AIS,采用间接ELISA法测定AIS效价,结果显示其效价可达1∶512 000;AIS经硫酸铵沉淀法纯化后进行SDS-聚丙烯酰胺凝胶电泳分析,结果显示在分子量为50 kDa及25 kDa处均出现了清晰可见的条带,符合免疫球蛋白G抗体亚型重链和轻链的理论分子量大小,表明成功制备出猪抑制素多克隆抗体。与常规超数排卵方法相比,AIS 10倍稀释联合PMSG处理可以显著增加小鼠超数排卵产生的卵母细胞数量(P<0.05),约为常规PMSG处理的1.5倍。 结论 本研究制备的猪抑制素多克隆抗体作为改良超数排卵试剂,可以提高C57BL/6J小鼠的超数排卵效果,在后续的市场应用中有较大前景。

关键词: 抗猪抑制素血清, C57BL/6J雌性小鼠, 超数排卵, 卵母细胞数, 2-细胞期胚胎数

Abstract:

Objective To prepare rabbit anti-porcine inhibin polypeptide-keyhole limpet hemocyanin(KLH) conjugated polyclonal antibody and evaluate its effect on superovulation in C57BL/6J mice. Methods New Zealand white rabbits were immunized with a synthesized porcine inhibin polypeptide conjugated with KLH to produce anti-inhibin serum (AIS, i.e., inhibin polyclonal antibody). Female C57BL/6J mice received intraperitoneal injections of purified AIS in combination with pregnant mare serum gonadotropin (PMSG), followed by human chorionic gonadotropin (hCG) after 48 hours to induce superovulation. Oocytes obtained from superovulation were collected and counted 15 hours post-hCG administration, and the number of 2-cell embryos was assessed 24 hours after in vitro fertilization. Results AIS prepared by immunizing New Zealand White rabbits with KLH-conjugated porcine inhibin polypeptide was subjected to titer determination by indirect ELISA, showing titers reaching 1∶ 512 000. SDS-polyacrylamide gel electrophoresis analysis of ammonium sulfate-purified AIS revealed distinct 50 kDa and 25 kDa bands corresponding to the theoretical molecular weights of IgG antibody heavy and light chains, confirming successful production of porcine inhibin polyclonal antibody. Compared with conventional superovulation methods, AIS diluted 10-fold combined with PMSG significantly increased the number of oocytes obtained from superovulation in mice (P<0.05) by approximately 1.5-fold. Conclusion Porcine inhibin polyclonal antibody, as an improved superovulation reagent, can improve superovulation efficiency in C57BL/6J mice, and shows promising prospects for future applications.

Key words: Porcine anti-inhibin serum, C57BL/6J female mice, Superovulation, Oocyte number, Number of 2-cell embryos

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