New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation

The inflammatory response is a fundamental aspect of all insults to the central nervous system (CNS), which includes acute trauma, infections, and chronic neurodegenerative conditions. As methods for investigating astrocytes have progressed, recent findings indicate that astrocytes can react to a di...

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Main Authors: Daniel Evangelista Santos, Sarah Alexandra Silva Lima, Leticia Santos Moreira, Silvia Lima Costa, Clarissa de Sampaio Schitine
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Brain, Behavior, & Immunity - Health
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Online Access:http://www.sciencedirect.com/science/article/pii/S2666354625000067
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author Daniel Evangelista Santos
Sarah Alexandra Silva Lima
Leticia Santos Moreira
Silvia Lima Costa
Clarissa de Sampaio Schitine
author_facet Daniel Evangelista Santos
Sarah Alexandra Silva Lima
Leticia Santos Moreira
Silvia Lima Costa
Clarissa de Sampaio Schitine
author_sort Daniel Evangelista Santos
collection DOAJ
description The inflammatory response is a fundamental aspect of all insults to the central nervous system (CNS), which includes acute trauma, infections, and chronic neurodegenerative conditions. As methods for investigating astrocytes have progressed, recent findings indicate that astrocytes can react to a diverse spectrum of insults affecting the central nervous system. Astrocytes respond to external and internal stimuli from the nervous system in a process called glial reactivity. Astrocyte reactivity, previously considered uniform and functionally inactive, is currently a very diverse event in different inflammatory processes. These differences can occur due to the nature, the intensity of the stimulus, the brain region involved and can range from subtle changes in astrocytic morphology to protein expression alteration, gene transcription profile shifts, and variations in the secretory pattern of molecules. The elucidation of the diverse roles of astrocytes in both normal and pathological conditions has led to increased interest in the notion that various astrocyte subtypes may exist, each contributing with distinct functions. Our study will prioritize the characterization of astrocytic response patterns in the context of the development and progression of neurodegenerative diseases, particularly Alzheimer's and Parkinson's. In addition, we will investigate the astrocyte's response during bacterial and viral infections, given the potential to enhance specific therapeutic interventions based on the reactivity profiles of astrocytes.
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spelling doaj-art-bd7f9ab009fa490a8d2f68df72131b812025-08-20T02:58:53ZengElsevierBrain, Behavior, & Immunity - Health2666-35462025-03-014410094810.1016/j.bbih.2025.100948New perspectives on heterogeneity in astrocyte reactivity in neuroinflammationDaniel Evangelista Santos0Sarah Alexandra Silva Lima1Leticia Santos Moreira2Silvia Lima Costa3Clarissa de Sampaio Schitine4Laboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Health Sciences Institute, Federal University of Bahia, BrazilLaboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Health Sciences Institute, Federal University of Bahia, BrazilLaboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Health Sciences Institute, Federal University of Bahia, BrazilLaboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Health Sciences Institute, Federal University of Bahia, BrazilCorresponding author. Instituto de Ciências da Saúde Av. Reitor Miguel Calmon s/nº Vale do Canela, Salvador-Bahia, 40110, Brazil.; Laboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Health Sciences Institute, Federal University of Bahia, BrazilThe inflammatory response is a fundamental aspect of all insults to the central nervous system (CNS), which includes acute trauma, infections, and chronic neurodegenerative conditions. As methods for investigating astrocytes have progressed, recent findings indicate that astrocytes can react to a diverse spectrum of insults affecting the central nervous system. Astrocytes respond to external and internal stimuli from the nervous system in a process called glial reactivity. Astrocyte reactivity, previously considered uniform and functionally inactive, is currently a very diverse event in different inflammatory processes. These differences can occur due to the nature, the intensity of the stimulus, the brain region involved and can range from subtle changes in astrocytic morphology to protein expression alteration, gene transcription profile shifts, and variations in the secretory pattern of molecules. The elucidation of the diverse roles of astrocytes in both normal and pathological conditions has led to increased interest in the notion that various astrocyte subtypes may exist, each contributing with distinct functions. Our study will prioritize the characterization of astrocytic response patterns in the context of the development and progression of neurodegenerative diseases, particularly Alzheimer's and Parkinson's. In addition, we will investigate the astrocyte's response during bacterial and viral infections, given the potential to enhance specific therapeutic interventions based on the reactivity profiles of astrocytes.http://www.sciencedirect.com/science/article/pii/S2666354625000067Astrocyte reactivityHeterogeneityNeurodegenerative diseaseInfection
spellingShingle Daniel Evangelista Santos
Sarah Alexandra Silva Lima
Leticia Santos Moreira
Silvia Lima Costa
Clarissa de Sampaio Schitine
New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
Brain, Behavior, & Immunity - Health
Astrocyte reactivity
Heterogeneity
Neurodegenerative disease
Infection
title New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
title_full New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
title_fullStr New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
title_full_unstemmed New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
title_short New perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
title_sort new perspectives on heterogeneity in astrocyte reactivity in neuroinflammation
topic Astrocyte reactivity
Heterogeneity
Neurodegenerative disease
Infection
url http://www.sciencedirect.com/science/article/pii/S2666354625000067
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