论著·基础研究

Fbxo22基因敲除小鼠模型的建立和表型研究

  • 张辉林 ,
  • 朱晓娜 ,
  • 杨烁 ,
  • 刘朦迪 ,
  • 朱迪 ,
  • 余韵
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  • 上海交通大学医学院附属瑞金医院分子医学中心,上海 200025
张辉林(1990—),女,硕士生;电子信箱: lugylucy@126.com。

网络出版日期: 2019-05-23

基金资助

国家自然科学基金( 81772936);中国福利会国际和平妇幼保健院院级科研基金( GFY5809)

Generation and phenotypic analysis of Fbxo22knockout mice

  • ZHANG Hui-lin ,
  • ZHU Xiao-na ,
  • YANG Shuo ,
  • LIU Meng-di ,
  • ZHU Di ,
  • YU Yun
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  • Center of Molecular Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China

Online published: 2019-05-23

Supported by

National Natural Science Foundation of China, 81772936; Foundation of the International Peace Maternity & Child Health Hospital of China, GFY5809

摘要

目的 ·分析 Fbxo22基因敲除小鼠的表型,为探索 FBXO22的生物学功能提供理论依据。方法 ·利用 CRISPR-Cas9(clustered regularly interspaced short palindromic repeats-CRISPR associated protein 9)技术成功构建 Fbxo22全身敲除小鼠,观察胚胎和小鼠的外观,测定其数量和质量,并分析小鼠的进食量和存活时间。结果 · Fbxo22敲除小鼠胚胎期 17.5/18.5 d的胚胎数量符合孟德尔遗传定律,外观未见异常,但是多数 Fbxo22敲除小鼠在出生后 48 h内死亡。少数存活小鼠体型偏小,进食减少,存活时间缩短。结论 · FBXO22对于小鼠出生后早期存活和正常发育有重要作用。

本文引用格式

张辉林 , 朱晓娜 , 杨烁 , 刘朦迪 , 朱迪 , 余韵 . Fbxo22基因敲除小鼠模型的建立和表型研究[J]. 上海交通大学学报(医学版), 2019 , 39(4) : 353 . DOI: 10.3969/j.issn.1674-8115.2019.04.004

Abstract

Objective · To establish the Fbxo22 knockout momodel and study the biological function of FBXO22. Methods · The Fbxo22 knockout mice were generatedCRISPR-Cas9 technology. The number, appearance, weight of different embryos and mice were measured. Meanwhile, the food intake and survival of Fbxo22-/-mice were analyzed. Results · Although the Fbxo22-/-embryos were present at approximately Mendelian ratios on embryonic day 17.5/18.5, most of them died within 48 hours of birth. Furthermore, those surviving Fbxo22-/- mice showed reduced body size and food intake and decreased life span. Conclusion · FBXO22 is an important, albeit not essential, protein for early postnatal survival and normal development. [Key words]FBXO22; CRISPR-Cas9 technology; early postnatal lethality
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