Mice reared in a sterile environment so they lacked a gut microbiome and do not develop this kind of immune cell were given L. reuteri and the immune cells arose.
小白鼠在无菌环境中饲养，因此它们缺乏肠道微生物，并且不能出现这种免疫细胞，存在路氏乳杆菌则产生免疫细胞。