Immunology: In command of commensals
Nature 474, 7349 (2011). doi:10.1038/474042a
Authors: Menno van Lookeren Campagne & Vishva M. Dixit
Humans must maintain a balanced composition for the trillions of commensal microbes that inhabit their gut, but how they do this is largely unclear. It now emerges that one factor is a molecular pathway in gut epithelial cells.