Methods to study primary cilia and autophagy in the brain

Area of Science:

• Cell Biology
• Neuroscience
• Molecular Biology

Background:

• Autophagy is a critical cellular recycling process essential for maintaining homeostasis, particularly in post-mitotic cells like neurons.
• The primary cilium (PC) functions as a cellular sensory organelle, and its role alongside autophagy is increasingly recognized in various cell types, including brain cells.
• Dysregulation of autophagy and PC is implicated in neurological disorders.

Purpose of the Study:

• To review the current understanding of the interplay between autophagy and primary cilia (PC) in the brain.
• To highlight the implications of this interplay in both healthy and diseased brain states.
• To provide practical immunofluorescence methods for studying autophagy and PC in brain tissue.

Main Methods:

• Immunofluorescence techniques are described for visualizing autophagy and PC.
• Methods cover tissue preparation, confocal microscopy, and image analysis.
• Specific protocols for assessing changes in PC length/number and autophagy markers are detailed.

Main Results:

• The chapter outlines how to practically assess autophagy and PC status in brain slices.
• It demonstrates how to correlate changes in these pathways with cellular health and disease.
• User-friendly protocols are provided for reproducible analysis.

Conclusions:

• Studying the interplay between autophagy and PC is crucial for understanding brain function and disease.
• The provided immunofluorescence methods offer a practical approach for researchers.
• This work facilitates further investigation into therapeutic strategies targeting these pathways in neurological conditions.