Neuron-glia Interaction as a Possible Pathophysiological Mechanism of Bipolar Disorder
Jairo Vinicius Pinto1,2, Ives Cavalcante Passos1,2, Diego Librenza-Garcia1,2
1Bipolar Disorder Program, Laboratory of Molecular Psychiatry, Hospital de Clinicas de Porto Alegre (HCPA), Porto Alegre (RS), Brazil.
Abstract:
Accumulating evidence has shown the importance of glial cells in the neurobiology of bipolar disorder. Activated microglia and inflammatory cytokines have been pointed out as potential biomarkers of bipolar disorder. Indeed, recent studies have shown that bipolar disorder involves microglial activation in the hippocampus and alterations in peripheral cytokines, suggesting a potential link between neuroinflammation and peripheral toxicity. These abnormalities may also be the biological underpinnings of outcomes related to neuroprogression, such as cognitive impairment and brain changes. Additionally, astrocytes may have a role in the progression of bipolar disorder, as these cells amplify inflammatory response and maintain glutamate homeostasis, preventing excitotoxicity. The present review aims to discuss neuron-glia interactions and their role in the pathophysiology and treatment of bipolar disorder.
Insights
Glial cells, including microglia and astrocytes, are crucial in bipolar disorder. Neuroinflammation and cytokine alterations link to disease progression, cognitive decline, and brain changes, highlighting neuron-glia interactions in bipolar disorder.
Area of Science:
- Neuroscience
- Immunology
- Psychiatry
Background:
- Glial cells play a significant role in the neurobiology of bipolar disorder.
- Activated microglia and inflammatory cytokines are potential biomarkers for bipolar disorder.
- Evidence suggests microglial activation in the hippocampus and peripheral cytokine alterations in bipolar disorder.
Purpose of the Study:
- To review the role of neuron-glia interactions in the pathophysiology of bipolar disorder.
- To discuss the involvement of glial cells in bipolar disorder progression.
- To explore the therapeutic implications of targeting neuron-glia pathways in bipolar disorder.
Main Methods:
- Literature review of studies on glial cells and bipolar disorder.
- Analysis of research on neuroinflammation and cytokine profiles in bipolar disorder.
- Examination of astrocyte function in glutamate homeostasis and inflammation.
Main Results:
- Microglial activation and peripheral cytokine abnormalities are linked to bipolar disorder.
- These neuroinflammatory changes may underlie neuroprogression, cognitive impairment, and brain alterations.
- Astrocytes contribute to bipolar disorder progression by amplifying inflammation and maintaining glutamate homeostasis.
Conclusions:
- Neuron-glia interactions are central to bipolar disorder pathophysiology.
- Targeting neuroinflammation and glial pathways may offer novel treatment strategies for bipolar disorder.
- Understanding glial cell roles is essential for addressing cognitive deficits and neuroprogression in bipolar disorder.
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