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Cellular and Molecular Biology of Glial Cells

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Neurobiology".

Deadline for manuscript submissions: 20 June 2025 | Viewed by 789

Special Issue Editor


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Guest Editor
1. Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
2. Department Neuroscience Program, Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
3. Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
4. Cancer Center at Illinois and Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
Interests: glial cell; neuroinflammation; pathways

Special Issue Information

Dear Colleagues,

It is well-established that glial cells play an important role in providing trophic support for neurons, improve conduction velocity, lower energy demand for action potential generation and generally function to maintain central nervous system (CNS) homeostasis. It has also been appreciated that aberrant responses by glia, as occurs during neuroinflammation, systemic inflammation, neurodegeneration and/or neurological disorders, likely contribute to altered homeostasis, neurotoxicity, pathology and disease progression. However, the intercellular interactions between glial cells as well as the cellular and molecular mechanisms that facilitate homeostatic maintenance of the CNS during health, or disease states brought on by inflammation, traumatic injury, cancer and/or metabolic dysfunction, have not yet been fully elucidated. For example, recent reports have ascribed novel cellular response phenotypes to glial subsets, including phagocytosis by astrocytes, cytokine/chemokine production and antigen presentation by oligodendrocytes as well as plasticity in myelination during adulthood. Moreover, it is becoming clear that metabolic flux of glial cells is subject to internal and external stimuli. These new areas of study are poised to shape our understanding of how glia function during both homeostatic and non-homeostatic conditions. The aim of this Special Issue entitled “Cellular and Molecular Biology of Glial Cells” is to enrich our knowledge on the fundamental roles that glia, such as astrocytes, oligodendrocytes and microglia have in maintaining homeostasis as well as illuminate their contribution towards pathology.

Dr. Andrew J. Steelman
Guest Editor

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Keywords

  • microglia
  • astrocytes
  • oligodendrocytes
  • metabolism
  • homeostasis
  • neuroinflammation
  • pathology

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Published Papers (1 paper)

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Research

21 pages, 18673 KiB  
Article
Age-Related Differences in Lipopolysaccharide-Induced Delirium-like Behavior Implicate the Distinct Microglial Composition in the Hippocampus
by Congli Sun, Xiaomin Kang, Xirui Jia, Yuwei Wang, Lijia Zhao, Xinyu Sun, Anaerguli Abula and Lijie Liu
Int. J. Mol. Sci. 2025, 26(5), 2055; https://doi.org/10.3390/ijms26052055 - 26 Feb 2025
Viewed by 367
Abstract
As the global population ages, the mechanisms underlying age-related susceptibility to delirium have attracted attention. Given the central role of microglia in the pathogenesis of inflammation-related delirium, we investigated the temporal dynamics of neurobehavioral changes and microglial responses, following lipopolysaccharide (LPS, 200 μg/kg) [...] Read more.
As the global population ages, the mechanisms underlying age-related susceptibility to delirium have attracted attention. Given the central role of microglia in the pathogenesis of inflammation-related delirium, we investigated the temporal dynamics of neurobehavioral changes and microglial responses, following lipopolysaccharide (LPS, 200 μg/kg) administration in young and old male C57BL/6 mice. Although a similar illness trajectory across 48 h post-treatment (HPT) was observed in both age groups, old-LPS mice exhibited worsened delirium-like behavior. At 48 HPT, in old but not young mice, significantly decreased hippocampal neuronal activity coincided with microglial overactivation. Widespread hippocampal microglial activation was present at 3 HPT but subsided by 12 HPT in young but not old mice, indicating a generally retarded but prolonged microglial response to LPS challenge in old mice. However, for both age groups, at 3 HPT, p16INK4a-negative microglia (with low abundance in the aged brain) exhibited comparable morphological activation, which was not observed for p16INK4a-positive microglia (highly abundant in the aged brain). These results suggest that age-related susceptibility to LPS-induced delirium-like behavior accompanied by different patterns of microglial response might implicate microglial composition shifts and that optimizing microglial composition represents a promising approach to reduce vulnerability to inflammatory challenge. Full article
(This article belongs to the Special Issue Cellular and Molecular Biology of Glial Cells)
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