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Mass Histology to Quantify Neurodegeneration in Drosophila

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Published on: December 15, 2016

Microglia in neurodegeneration.

Suzanne Hickman¹, Saef Izzy¹, Pritha Sen¹

¹Center for Immunology & Inflammatory Diseases, Massachusetts General Hospital, and Harvard Medical School, Boston, MA, USA.

Nature Neuroscience

|September 28, 2018

Summary

Microglia, the brain's immune cells, have sentinel, housekeeping, and defense functions crucial for central nervous system health. Imbalances in these functions and neuroinflammation contribute to neurodegenerative diseases, suggesting therapeutic potential.

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Culturing Microglia from the Neonatal and Adult Central Nervous System

Culturing Microglia from the Neonatal and Adult Central Nervous System

Published on: August 9, 2013

Area of Science:

Neuroscience
Immunology
Cell Biology

Background:

The neuroimmune system, particularly microglia, plays a vital role in central nervous system (CNS) development, function, aging, and injury.
Microglia possess sentinel, housekeeping, and defense functions essential for neuronal well-being and CNS protection.
Dysregulation of microglial functions and neuroinflammation are implicated in various neurodegenerative diseases.

Purpose of the Study:

To elucidate the multifaceted roles of microglia in the central nervous system.
To explore the mechanisms by which microglial dysfunction contributes to neurodegeneration.
To identify potential therapeutic strategies targeting microglial function.

Main Methods:

Review and synthesis of existing literature on microglial biology and neuroinflammation.
Analysis of genetic pathways (e.g., Trem2, Cx3cr1, progranulin, scavenger receptors) involved in microglial function.
Examination of the impact of peripheral factors (systemic inflammation, gut microbiome) on microglial activity.

Main Results:

Microglia's sentinel, housekeeping, and defense functions are critical for CNS homeostasis.
Disruption of these functions and neuroinflammation lead to neuronal injury in diseases like Alzheimer's and Parkinson's.
Specific pathways regulate microglial inflammatory responses and clearance of harmful stimuli.
Peripheral factors can modulate neurodegenerative processes via microglial pathways.

Conclusions:

Neurodegeneration arises from an imbalance in microglial functions, including dysregulated inflammation and impaired housekeeping.
Targeting these microglial pathways and restoring functional balance presents a promising therapeutic avenue for neurodegenerative diseases.
Understanding the interplay between microglia, neuroinflammation, and neurodegeneration is key for developing effective treatments.