Observing planar cell polarity in multiciliated mouse airway epithelial cells

Area of Science:

• Cell Biology
• Respiratory Physiology

Background:

• Motile cilia in airway epithelium drive mucociliary clearance, crucial for respiratory health.
• Planar Cell Polarity (PCP) signaling governs the directional orientation of motile cilia.

Purpose of the Study:

• To present methods for observing and quantifying motile cilia planar polarization in vivo and in primary airway epithelial cell cultures.
• To provide tools for studying ciliogenesis and PCP signaling in respiratory tissues.

Main Methods:

• Utilizing electron and light microscopy to analyze ciliary ultrastructure for orientation.
• Employing immunofluorescence to localize PCP pathway components as a readout for cell polarization.

Main Results:

• Established methods for evaluating ciliary orientation in mouse respiratory epithelium.
• Demonstrated the utility of PCP component localization for assessing airway epithelial planar polarization.

Conclusions:

• The described methods facilitate the study of motile cilia orientation and PCP pathway activity.
• These techniques are adaptable for diverse ciliated cell types and tissues, advancing research in respiratory health and cell polarity.