text:  colonic epithelium_BA-infection_day7_rep2 colonic epithelium Source Type isolated cell ; Organism Part large intestine ; Cell Type epithelial cell ; Cell Purification n/a ; Strain[background] BALB/c ; Developmental Stage adult ; Age 16 weeks ; Sex male ; Microbial Condition gnotobiote ; Genetic Modification n/a ; Disease State healthy 