Mucociliary transport process

The mucociliary transport process (also called mucociliary clearance or the mucociliary escalator) is a coordinated physical mechanism of the respiratory airway epithelium, involving motile cilia beating within a layer of periciliary fluid to propel mucus, along with trapped inhaled particles and pathogens, toward the pharynx for removal from the lungs[1][2][5][6]. Key players in this process include ciliated epithelial cells, mucus-producing goblet and submucosal gland cells, and the regulation of airway surface liquid via ion channels such as CFTR and ENaC[2][7]. Disruption of any component—including ciliary beat, mucus properties, or airway hydration—impairs clearance and contributes to chronic respiratory diseases such as cystic fibrosis, asthma, COPD, and primary ciliary dyskinesia[5][6][7]. While critical to airway defense, mucociliary transport is a physiological process rather than a single defined molecule, receptor, or drug target[1][2][5][6].

Other names

Mucociliary clearanceMucociliary escalatorMucociliary transport

The mucociliary transport process itself is not a molecular target for drugs, but therapies may aim to enhance or restore its function indirectly by acting on underlying components such as ion channels, cilia, or mucus viscosity, not on the process as a discrete druggable target.