Dietary induced dedifferentiation of Bmi1 cells and its impact on intestinal mucosal homeostasis

Bmi1tm1(cre/ERT2)Mrc/J (a.k.a. Bmi1creERT2 mice), B6.Cg-Gt(ROSA)26Sortm14(CAT-tdTomato)Hze/J (a.k.a. Rosa26tom mice) were crossed. The mice were fed with New Western diet 1 (NWD1) or Americal Instititue of Nutrition 76A (AIN76A or AIN) diet from weaning for 3 months. Tamoxinfen was injected to induce Bmi1 cell dedifferentiation, featuring the expression of tomato red fluoresence in the Bmi1 locus. Single intestinal epithelial cells were FACS isolated by the Epcam+, CD45- and Tomato (red fluorescence)+, and subject to scRNAseq assay. Overall design: Examine roles of dedifferentiation of Bmi1 cell in regeneration of intestinal stem cells and its impact on mucosal homeostasis under normal physiogical condition (fed with various diets). contributor: Karina