Glial-Dopamine crosstalk: Astrocytic and microglial gatekeepers of neuroinflammation, plasticity, and motivation.
This review synthesizes evidence that astrocytes and microglia actively shape dopaminergic signaling, neuroinflammation, metabolism, and behavior and proposes a translational framework to target glial states to restore dopamine homeostasis in disorders including Parkinson's disease.
What the AI sees
This review synthesizes evidence that astrocytes and microglia actively shape dopaminergic signaling, neuroinflammation, metabolism, and behavior and proposes a translational framework to target glial states to restore dopamine homeostasis in disorders including Parkinson's disease.
Research significance
By framing glia as actionable modulators of dopamine circuits and integrating multi-omics, in vivo imaging, and computational approaches, the paper highlights non-neuronal therapeutic targets and biomarker strategies (inflammation, metabolism, glial states) that could be leveraged for…
Source abstract
Dpamine (DA) signaling has long been framed through a neuron-centric lens; yet, mounting evidence reveals that glial cells (astrocytes and microglia) serve as indispensable gatekeepers of dopaminergic tone, synaptic plasticity, and neuroimmune balance. Single-cell, spatial, and optical imaging studies have redefined DA circuits as multicellular ecosystems in which glial receptors, transporters, and gliotransmitters dynamically sculpt neuromodulation and behavior. Astrocytes fine-tune DA clearance, glutamate buffering, and metabolic coupling, while microglia integrate immune and stress cues recalibrate dopaminergic signaling across striatal and cortical circuits. Their bidirectional interactions, both glia-glia and glia-neuron, mediate resilience or vulnerability in contexts ranging from motivation and stress adaptation to Parkinson's disease (PD), depression, and post-viral fatigue syndromes. In this review, we synthesized emerging evidence that glial-DA crosstalk is a systems-level regulator of neuroinflammation and plasticity, bridging cellular metabolism, immune tone, and behavioral output. By integrating multi-omics, in vivo imaging, and computational models, we proposed a translational framework for targeting astrocytic and microglial states to restore dopaminergic homeostasis. Understanding and manipulating these non-neuronal interfaces may open the next frontier in precision neuropsychiatry and neurodegeneration therapeutics.