Club Cell Brain-Derived Neurotrophic Factor Regulates Murine Airway Mechanics and Mucin Production in Response to IL-13 in a Sex-Dependent Manner Introduction: Brain-derived neurotrophic factor (BDNF) is a neural plasticity molecule that is increasingly recognized for its role in airway pathophysiology, including diseases like asthma. Although many cells in the airway can produce BDNF, our understanding of…