Generation and phenotypic analysis of Fbxo22 knockout mice / 上海交通大学学报（医学版）

ABSTRACT

Objective · To establish the Fbxo22 knockout mouse model and study the biological function of FBXO22. Methods · The Fbxo22 knockout mice were generated by CRISPR-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.