Microglial Mitochondrial Dysfunction: The Storm Center of Post-Stroke Neuroinflammation

Area of Science:

• Neuroscience
• Immunology
• Mitochondrial Biology

Background:

• Stroke is a leading cause of death and disability globally.
• Secondary neurological injury, driven by neuroinflammation, is a critical therapeutic target.
• Microglia play a key role in sensing and responding to post-stroke changes, influencing outcomes.

Purpose of the Study:

• To synthesize recent findings on microglial mitochondrial dysfunction in stroke.
• To introduce the concept of a microglial mitochondrial "storm center" model.
• To highlight potential therapeutic targets for stroke.

Main Methods:

• Review of accumulating evidence, including high-resolution spatial profiling and single-cell omics.
• Synthesis of recent findings on microglial mitochondrial dysfunction.
• Conceptual framework development based on current research.

Main Results:

• Mitochondrial dysfunction is central to microglial responses post-stroke.
• The "storm center" model proposes reactive oxygen species (ROS) trigger inflammation.
• Impaired mitochondrial quality control (MQC) and metabolic reprogramming exacerbate injury.

Conclusions:

• The "storm center" model offers a framework for mitigating secondary brain injury.
• Key molecular mechanisms and therapeutic targets are identified.
• This research provides a foundation for future stroke innovation.