Abstract
ABSTRACT
The study of differentiation has been the domain of embryologists and developmental biologists and, in the pulmonary field, the concern of neonatologists. Why should those of us who are neither be interested in differentiation of the epithelium lining the conducting airways? The reason is that injury to the airway epithelium and disruption of its steady state and its normal differentiation are common occurrences in both acute episodes of infection and during chronic diseases such as chronic obstructive pulmonary disease and asthma. Thus, it is important to know how injury is repaired and which are the critical mechanisms that control and regulate differentiation.
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