The inner colon mucus layer capacity to separate bacteria from the epithelium is dependent on bacterial colonizers signaling to the host epithelium. In this issue of Cell Host & Microbe, Wlodarska et al. (2017) demonstrate that the mucin-utilizing Peptostreptococcus russellii protects the host from inflammatory disease via metabolite signals.

中文翻译：

---

细菌告诉我们如何保护肠道

内结肠粘液层将细菌从上皮中分离出来的能力取决于细菌定居者向宿主上皮发出信号。在本期《细胞宿主与微生物》中，Wlodarska等人。（2017）证明利用粘蛋白的罗氏乳球菌可通过代谢产物信号保护宿主免受炎症性疾病的侵害。