A novel function for exosomes in depression

doi:10.1016/j.lfs.2025.123558

A novel function for exosomes in depression

2025-03-01

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DOI：10.1016/j.lfs.2025.123558

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Exosomes are a class of extracellular vesicles that encompass a diverse array of bioactive molecules, including proteins, lipids, mRNA, and microRNA(miRNA). Virtually all cell types release exosomes under both physiological and pathological conditions. In addition to electrical and chemical signals, exosomes are an alternative route of signaling between cells in the brain. In the brain, they are involved in processes such as synaptic plasticity, neuronal stress response, intercellular communication, and neurogenesis. A number of studies have shown that exosomes regulate the occurrence and development of depression by participating in the regulation of hypothalamic-pituitary-adrenal axis, brain-derived neurotrophic factor, immune inflammatory response and other mechanisms, showing that they may become potential biological agents for the diagnosis and treatment of depression. In addition, exosomes have the ability to easily cross the blood-brain barrier, making them ideal drug or molecular delivery tools for the central nervous system. Engineered exosomes have good brain targeting ability, and their research in central nervous system diseases has begun to emerge. However, the molecular pathways involved in the pathogenesis of depression remain unknown, and further studies are needed to fully understand the role of exosomes in the development or improvement of depression. Therefore, in this review, we mainly focus on the diagnostic performance and therapeutic effect of exosomes in depression, and explore the advantages of exosomes as biomarkers and gene delivery vectors for depression.

Keyword:

Extracellular vesicles

Exosomes

Central nervous system

Depression

A novel function for exosomes in depression

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