Cell replenishment within the airways is governed by the random division of a population of basal progenitor cells, in a process that is accelerated in smokers.

The chloride channel Ano1/Tmem16a plays an essential and non-redundant role in the developing airway by inhibiting mucus cell hyperplasia and promoting proper immune function of the airway mucosal barrier.

Notch ligands from the Delta and Jagged families have distinct roles in epithelial progenitor cell fate of extrapulmonary and intrapulmonary airways and differentially restrict expansion of the neuroendocrine microenvironment.

A genetic framework that balances the numbers of multipotent precursors and differentiated cells in the developing airways of Drosophila is presented.

Formation and cell pole-localization of chemotactic signaling-arrays is a coupled process mediated by ParP, which drives localized array-assembly and regulates the localization-dynamics of its network constituents.

Mycobacterium tuberculosis penetrates the airway mucosa through M cells via the mycobacterial virulence factor EsxA and the host M cell surface receptor scavenger receptor B1.

The flexible escape behavior exhibited by C. elegans in response to threats relies on a combination of feedback and feedforward circuits.

The rat is much more than a simple model, and a better appreciation of the natural history of wild rats would increase its value as a research organism.