Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses

Flaviviruses are present on every continent and cause significant morbidity and mortality. In many instances, severe cases of infection with flaviviruses involve the invasion of and damage to the central nervous system (CNS). Currently, there are several mechanisms by which it has been hypothesized...

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Main Authors: Liset de Vries, Alfred T. Harding
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Viruses
Subjects:
Online Access:https://www.mdpi.com/1999-4915/15/2/261
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author Liset de Vries
Alfred T. Harding
author_facet Liset de Vries
Alfred T. Harding
author_sort Liset de Vries
collection DOAJ
description Flaviviruses are present on every continent and cause significant morbidity and mortality. In many instances, severe cases of infection with flaviviruses involve the invasion of and damage to the central nervous system (CNS). Currently, there are several mechanisms by which it has been hypothesized flaviviruses reach the brain, including the disruption of the blood–brain barrier (BBB) which acts as a first line of defense by blocking the entry of many pathogens into the brain, passing through the BBB without disruption, as well as travelling into the CNS through axonal transport from peripheral nerves. After flaviviruses have entered the CNS, they cause different neurological symptoms, leading to years of neurological sequelae or even death. Similar to neuroinvasion, there are several identified mechanisms of neuropathology, including direct cell lysis, blockage of the cell cycle, indication of apoptosis, as well as immune induced pathologies. In this review, we aim to summarize the current knowledge in the field of mechanisms of both neuroinvasion and neuropathogenesis during infection with a variety of flaviviruses and examine the potential contributions and timing of each discussed pathway.
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spelling doaj.art-44475089d89d4e9aa0ce9e1f454934162023-11-16T23:46:37ZengMDPI AGViruses1999-49152023-01-0115226110.3390/v15020261Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic FlavivirusesLiset de Vries0Alfred T. Harding1School of Life Sciences, Utrecht University, 3584 CS Utrecht, The NetherlandsInstitute for Medical Engineering and Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USAFlaviviruses are present on every continent and cause significant morbidity and mortality. In many instances, severe cases of infection with flaviviruses involve the invasion of and damage to the central nervous system (CNS). Currently, there are several mechanisms by which it has been hypothesized flaviviruses reach the brain, including the disruption of the blood–brain barrier (BBB) which acts as a first line of defense by blocking the entry of many pathogens into the brain, passing through the BBB without disruption, as well as travelling into the CNS through axonal transport from peripheral nerves. After flaviviruses have entered the CNS, they cause different neurological symptoms, leading to years of neurological sequelae or even death. Similar to neuroinvasion, there are several identified mechanisms of neuropathology, including direct cell lysis, blockage of the cell cycle, indication of apoptosis, as well as immune induced pathologies. In this review, we aim to summarize the current knowledge in the field of mechanisms of both neuroinvasion and neuropathogenesis during infection with a variety of flaviviruses and examine the potential contributions and timing of each discussed pathway.https://www.mdpi.com/1999-4915/15/2/261flavivirusneuroinvasionneuropathogenesis
spellingShingle Liset de Vries
Alfred T. Harding
Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses
Viruses
flavivirus
neuroinvasion
neuropathogenesis
title Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses
title_full Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses
title_fullStr Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses
title_full_unstemmed Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses
title_short Mechanisms of Neuroinvasion and Neuropathogenesis by Pathologic Flaviviruses
title_sort mechanisms of neuroinvasion and neuropathogenesis by pathologic flaviviruses
topic flavivirus
neuroinvasion
neuropathogenesis
url https://www.mdpi.com/1999-4915/15/2/261
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