Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities

Central nervous system (CNS) infections remain a major burden of pediatric disease associated with significant long-term morbidity due to injury to the developing brain. Children are susceptible to various etiologies of CNS infection partly because of vulnerabilities in their peripheral immune syste...

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Main Authors: Gabriela Singh, Elizabeth W. Tucker, Ursula K. Rohlwink
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-01-01
Series:Frontiers in Neurology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fneur.2021.805643/full
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author Gabriela Singh
Elizabeth W. Tucker
Ursula K. Rohlwink
Ursula K. Rohlwink
author_facet Gabriela Singh
Elizabeth W. Tucker
Ursula K. Rohlwink
Ursula K. Rohlwink
author_sort Gabriela Singh
collection DOAJ
description Central nervous system (CNS) infections remain a major burden of pediatric disease associated with significant long-term morbidity due to injury to the developing brain. Children are susceptible to various etiologies of CNS infection partly because of vulnerabilities in their peripheral immune system. Young children are known to have reduced numbers and functionality of innate and adaptive immune cells, poorer production of immune mediators, impaired responses to inflammatory stimuli and depressed antibody activity in comparison to adults. This has implications not only for their response to pathogen invasion, but also for the development of appropriate vaccines and vaccination strategies. Further, pediatric immune characteristics evolve across the span of childhood into adolescence as their broader physiological and hormonal landscape develop. In addition to intrinsic vulnerabilities, children are subject to external factors that impact their susceptibility to infections, including maternal immunity and exposure, and nutrition. In this review we summarize the current evidence for immune characteristics across childhood that render children at risk for CNS infection and introduce the link with the CNS through the modulatory role that the brain has on the immune response. This manuscript lays the foundation from which we explore the specifics of infection and inflammation within the CNS and the consequences to the maturing brain in part two of this review series.
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spelling doaj.art-1141db979ae64785952ce114001be94d2022-12-22T04:08:45ZengFrontiers Media S.A.Frontiers in Neurology1664-22952022-01-011210.3389/fneur.2021.805643805643Infection in the Developing Brain: The Role of Unique Systemic Immune VulnerabilitiesGabriela Singh0Elizabeth W. Tucker1Ursula K. Rohlwink2Ursula K. Rohlwink3Division of Neurosurgery, Department of Surgery, Neuroscience Institute, University of Cape Town, Cape Town, South AfricaDepartment of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, United StatesDivision of Neurosurgery, Department of Surgery, Neuroscience Institute, University of Cape Town, Cape Town, South AfricaFrancis Crick Institute, London, United KingdomCentral nervous system (CNS) infections remain a major burden of pediatric disease associated with significant long-term morbidity due to injury to the developing brain. Children are susceptible to various etiologies of CNS infection partly because of vulnerabilities in their peripheral immune system. Young children are known to have reduced numbers and functionality of innate and adaptive immune cells, poorer production of immune mediators, impaired responses to inflammatory stimuli and depressed antibody activity in comparison to adults. This has implications not only for their response to pathogen invasion, but also for the development of appropriate vaccines and vaccination strategies. Further, pediatric immune characteristics evolve across the span of childhood into adolescence as their broader physiological and hormonal landscape develop. In addition to intrinsic vulnerabilities, children are subject to external factors that impact their susceptibility to infections, including maternal immunity and exposure, and nutrition. In this review we summarize the current evidence for immune characteristics across childhood that render children at risk for CNS infection and introduce the link with the CNS through the modulatory role that the brain has on the immune response. This manuscript lays the foundation from which we explore the specifics of infection and inflammation within the CNS and the consequences to the maturing brain in part two of this review series.https://www.frontiersin.org/articles/10.3389/fneur.2021.805643/fullcentral nervous system (CNS) infectionsvulnerabilitiesdeveloping brainimmune responsechildrenperipheral immune system
spellingShingle Gabriela Singh
Elizabeth W. Tucker
Ursula K. Rohlwink
Ursula K. Rohlwink
Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities
Frontiers in Neurology
central nervous system (CNS) infections
vulnerabilities
developing brain
immune response
children
peripheral immune system
title Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities
title_full Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities
title_fullStr Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities
title_full_unstemmed Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities
title_short Infection in the Developing Brain: The Role of Unique Systemic Immune Vulnerabilities
title_sort infection in the developing brain the role of unique systemic immune vulnerabilities
topic central nervous system (CNS) infections
vulnerabilities
developing brain
immune response
children
peripheral immune system
url https://www.frontiersin.org/articles/10.3389/fneur.2021.805643/full
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AT ursulakrohlwink infectioninthedevelopingbraintheroleofuniquesystemicimmunevulnerabilities
AT ursulakrohlwink infectioninthedevelopingbraintheroleofuniquesystemicimmunevulnerabilities