A single-cell transcriptomic dataset profiling traumatic brain injury and NeuroD1-based gene therapy in mice

Area of Science:

• Neuroscience
• Genetics
• Cell Biology

Background:

• Traumatic brain injury (TBI) is a major cause of death and disability worldwide.
• Astrocytes play critical roles in neuroinflammation and neuroprotection following TBI.
• Current therapeutic options for TBI are limited, necessitating novel treatment strategies.

Purpose of the Study:

• To elucidate the molecular and cellular mechanisms of NeuroD1-based gene therapy in TBI.
• To investigate the impact of NeuroD1 therapy on astrocyte function and brain tissue repair.
• To analyze cellular composition and pathway changes in TBI using single-cell RNA sequencing.

Main Methods:

• Single-cell RNA sequencing (scRNA-seq) was performed on mouse models of TBI.
• Cortical stab injury model was used to induce TBI.
• Comparison of gene expression profiles between vehicle-treated and NeuroD1-treated TBI mice.

Main Results:

• TBI induced significant shifts in cellular composition and astrocyte subtypes.
• TBI led to upregulated synaptic assembly and myelination pathways, with downregulated mitochondrial and metabolic functions.
• NeuroD1-based gene therapy restored mitochondrial and metabolic functions and attenuated aberrant synaptic and myelination processes.

Conclusions:

• NeuroD1-based gene therapy demonstrates therapeutic potential for TBI by modulating cellular pathways.
• Single-cell transcriptomics provides valuable insights into TBI mechanisms and therapeutic responses.
• This study offers a resource for further research into NeuroD1 therapy for TBI.