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Introduction: Astrocytes are the most abundant cell type in the central nervous system (CNS). They play a pivotal role in supporting neuronal function and maintaining homeostasis by releasing a variety of bioactive proteins, collectively known as the astrocyte secretome. Investigating secretome provides insights into the molecular mechanisms underlying astrocyte function and dysfunction, as well as novel strategies to prevent and treat diseases affecting the CNS.
Areas Covered: Proteomics databases are a valuable resource for studying the role of astrocytes in healthy and diseased brain function, as they provide information about gene expression, protein expression, and cellular function. In this review, we discuss existing databases that are useful for astrocyte secretome research.
Expert Opinion: Astrocyte secretomics is a field that is rapidly progressing, yet the availability of dedicated databases is currently limited. To meet the increasing demand for comprehensive omics data in glia research, developing databases specifically focused on astrocyte secretome is crucial. Such databases would allow researchers to investigate the intricate molecular landscape of astrocytes and comprehend their involvement in diverse physiological and pathological processes. Expanding resources through the development of databases dedicated to the astrocyte secretome may facilitate further advancements in this field.
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http://dx.doi.org/10.1080/14789450.2023.2285311 | DOI Listing |
PLoS Pathog
September 2025
National Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China.
Neuroinflammation within the central nervous system (CNS) is recognized as a critical pathological process in meningitic Escherichia coli (E. coli) infection, leading to severe neurodegenerative disorders and long-term sequelae. Astrocyte reactivity plays a pivotal role in driving the neuroinflammatory cascade in response to pathological stimuli from peripheral sources or other cellular components of the CNS.
View Article and Find Full Text PDFiScience
September 2025
iBET, Instituto de Biologia Experimental e Biológica, Oeiras, Portugal.
Growing evidence suggests that reactive astrocytes can acquire different functional subtypes, playing critical roles in neurological disorders. Human induced pluripotent stem cell (hiPSC)-derived three-dimensional (3D) CNS models have been proposed to study reactive astrocytes. Still, lack of reproducibility and immature/activated astrocyte phenotypes typical of these models limit their utility to address neuroinflammation.
View Article and Find Full Text PDFCell Mol Life Sci
August 2025
Instituto de Investigaciones Bioquímicas de Bahía Blanca (INIBIBB) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Camino La Carrindanga Km7 B8000, Bahía Blanca, Argentina.
Environmental toxicants such as maneb (MB), a dithiocarbamate pesticide, trigger progressive neuronal death, probably due to the imbalance in inflammation/resolution mechanisms, resulting in the onset of neurodegeneration. The inflammation/resolution balance is governed by G protein-coupled receptor (GPCR) signaling, but it has been poorly described in the Central Nervous System (CNS), since resolution GPCR ligands are negligible and elusive lipid compounds. These mediators are mainly synthesized by lipoxygenases (ALOX) from arachidonic acid (AA) and docosahexaenoic acid (DHA) released by specific phospholipases A2 (PLA2).
View Article and Find Full Text PDFGlia
August 2025
Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Science, Shanghai, China.
Secreted proteins are key mediators of intercellular communication in multicellular organisms. However, progress in secretomics has been hindered by the lack of effective methods for capturing secreted proteins. Here, we present a two-step secretome enrichment method (tsSEM) that integrates unnatural amino acid labeling with click chemistry-based biorthogonal reaction, enabling robust in vitro secretome profiling in the presence of serum.
View Article and Find Full Text PDFMov Disord
July 2025
Qingdao Hospital (Qingdao Municipal Hospital), Qingdao Key Laboratory of Neurorehabilitation, University of Health and Rehabilitation Sciences, Qingdao, Shandong, China.
Astrocytes communicate bidirectionally with neurons. The concerted activity of the neuron-astrocyte system is responsible for the progressive destruction of dopaminergic neurons in Parkinson's disease (PD). There is an urgent need to explore new prevention and treatment strategies for PD because of the lack of effective pharmaceutical therapies.
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