The presence of bacteria within epithelial-lined compartments, such as the lung, elicits rapid recruitment of innate immune cells. In this issue of Cell Host & Microbe, Chun and Prince (2009) report that epithelial cells facilitate this process by reorganizing their intercellular junctions to enhance immune cell transmigration. © 2009 Elsevier Inc. All rights reserved.
Nalle, S. C., & Turner, J. R. (2009, January 22). Epithelium, Tear Down This Wall! Cell Host and Microbe. https://doi.org/10.1016/j.chom.2008.12.008