Abstract
Therapeutic hypothermia is a useful intervention against brain injury in experimental models and patients, but its therapeutic applications are limited due to its ill-defined mode of action. Glia cells maintain homeostasis and protect the central nervous system from environmental change, but after brain injury, glia are activated and induce glial scar formation and secondary injury. On the other hand, therapeutic hypothermia has been shown to modulate glial hyperactivation under various brain injury conditions. We considered that knowledge of the effect of hypothermia on the molecular profiles of glia and on their phenotypes would improve our understanding of the neuroprotective mechanism of hypothermia. Here, we review the findings of recent studies that examined the effect of hypothermia on proteome changes in reactive glial cells in vitro and in vivo. The therapeutic effects of hypothermia are associated with the inhibition of reactive oxygen species generation, the maintenance of ion homeostasis, and the protection of neurovascular units in cultured glial cells. In an animal model, a distinct pattern of protein alterations was detected in glia following hypothermia under ischemic/reperfusion conditions. In particular, hypothermia was found to exert a neuroprotective effect against ischemic brain injury by regulating specific glial signaling pathways, such as, glutamate signaling, cell death, and stress response, and by influencing neural dysfunction, neurogenesis, neural plasticity, cell differentiation, and neurotrophic activity. Furthermore, the proteins that were differentially expressed belonged to various pathways and could mediate diverse phenotypic changes of glia in vitro or in vivo. Therefore, hypothermia-modulated glial proteins and subsequent phenotypic changes may form the basis of the therapeutic effects of hypothermia.
Keywords: Glia, Hypothermia, Neuroinflammation, Ischemia, Proteome
Current Protein & Peptide Science
Title:Effects of Therapeutic Hypothermia on the Glial Proteome and Phenotype
Volume: 14 Issue: 1
Author(s): Jong-Heon Kim, Minchul Seo and Kyoungho Suk
Affiliation:
Keywords: Glia, Hypothermia, Neuroinflammation, Ischemia, Proteome
Abstract: Therapeutic hypothermia is a useful intervention against brain injury in experimental models and patients, but its therapeutic applications are limited due to its ill-defined mode of action. Glia cells maintain homeostasis and protect the central nervous system from environmental change, but after brain injury, glia are activated and induce glial scar formation and secondary injury. On the other hand, therapeutic hypothermia has been shown to modulate glial hyperactivation under various brain injury conditions. We considered that knowledge of the effect of hypothermia on the molecular profiles of glia and on their phenotypes would improve our understanding of the neuroprotective mechanism of hypothermia. Here, we review the findings of recent studies that examined the effect of hypothermia on proteome changes in reactive glial cells in vitro and in vivo. The therapeutic effects of hypothermia are associated with the inhibition of reactive oxygen species generation, the maintenance of ion homeostasis, and the protection of neurovascular units in cultured glial cells. In an animal model, a distinct pattern of protein alterations was detected in glia following hypothermia under ischemic/reperfusion conditions. In particular, hypothermia was found to exert a neuroprotective effect against ischemic brain injury by regulating specific glial signaling pathways, such as, glutamate signaling, cell death, and stress response, and by influencing neural dysfunction, neurogenesis, neural plasticity, cell differentiation, and neurotrophic activity. Furthermore, the proteins that were differentially expressed belonged to various pathways and could mediate diverse phenotypic changes of glia in vitro or in vivo. Therefore, hypothermia-modulated glial proteins and subsequent phenotypic changes may form the basis of the therapeutic effects of hypothermia.
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Cite this article as:
Kim Jong-Heon, Seo Minchul and Suk Kyoungho, Effects of Therapeutic Hypothermia on the Glial Proteome and Phenotype, Current Protein & Peptide Science 2013; 14 (1) . https://dx.doi.org/10.2174/1389203711314010008
DOI https://dx.doi.org/10.2174/1389203711314010008 |
Print ISSN 1389-2037 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5550 |
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