StarTrack Morphometric Profiling of Glial Clones in Adult Brain Damage Models

Area of Science:

• Neuroscience
• Cell Biology
• Immunology

Background:

• Glial cells play critical roles in central nervous system (CNS) repair, inflammation, and demyelination.
• Understanding glial clone dynamics after injury is crucial for developing therapeutic strategies.

Purpose of the Study:

• To provide a detailed protocol for lineage tracing of glial clones in the adult mouse brain following injury.
• To enable quantitative assessment of glial cell proliferation, migration, and morphological plasticity.

Main Methods:

• In vivo delivery of multicolor StarTrack plasmids via in utero electroporation.
• Induction of Traumatic Brain Injury (TBI) and Experimental Autoimmune Encephalomyelitis (EAE) models.
• High-resolution confocal imaging combined with Fiji/ImageJ analysis for 3D reconstruction and morphometric parameter extraction.

Main Results:

• Segmentation and reconstruction of individual glial clones.
• Extraction of standardized morphometric parameters including soma volume, process length, and branching complexity.
• Multivariate statistical analysis to compare clonal adaptations across different injury models.

Conclusions:

• The presented methodology allows for robust and reproducible assessment of glial clonal responses to CNS injury.
• This approach offers novel insights into the roles of glial cells in CNS repair, inflammation, and demyelination.