Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship

Neuroinflammation plays a crucial role in cognitive decline and neurodegenerative diseases, such as Alzheimer's. Within the central nervous system, microglia express Toll-like receptor 4 (TLR-4) abundantly, which prompts the secretion of proinflammatory cytokines like TNF-α, PGE2, IL-1β, and NO...

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Main Authors: Salma A. Elshafey, Dalia El-Khouly, Esther T. Menze, Mariane G. Tadros
Format: Article
Language:English
Published: Ain Shams University 2023-12-01
Series:Archives of Pharmaceutical Sciences Ain Shams University
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Online Access:https://aps.journals.ekb.eg/article_320652.html
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author Salma A. Elshafey
Dalia El-Khouly
Esther T. Menze
Mariane G. Tadros
author_facet Salma A. Elshafey
Dalia El-Khouly
Esther T. Menze
Mariane G. Tadros
author_sort Salma A. Elshafey
collection DOAJ
description Neuroinflammation plays a crucial role in cognitive decline and neurodegenerative diseases, such as Alzheimer's. Within the central nervous system, microglia express Toll-like receptor 4 (TLR-4) abundantly, which prompts the secretion of proinflammatory cytokines like TNF-α, PGE2, IL-1β, and NO that are considered essential components of neuroinflammation. The emergence of neurological complications in COVID-19 patients has spurred investigations into TLR-4's potential involvement. Particularly intriguing is its contribution to the cytokine storms triggered by SARS-CoV-2 and SARS-CoV-1 infections. This comprehensive review investigates the TLR-4-induced neuroinflammation, focusing on its potential connection to cognitive decline and neurological symptoms triggered by COVID-19. By unraveling the intricate mechanisms by which TLR-4 mediates neuroinflammation, this review aims to shed light on its possible role in the context of COVID-19. Understanding the implications of TLR-4 activation could pave the way for targeted interventions to alleviate the cognitive and neurological impacts of COVID-19. As the world seeks to comprehend the far-reaching effects of the pandemic, grasping the nuances of TLR-4-associated neuroinflammation stands as a crucial step in addressing the challenges posed by cognitive decline and neurological manifestations in COVID-19 patients.
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spelling doaj-art-af7a84df8e9244c6a3d9df8c06a3a44a2025-08-20T01:59:57ZengAin Shams UniversityArchives of Pharmaceutical Sciences Ain Shams University2356-83802356-83992023-12-0172324333https://doi.org/10.21608/aps.2023.231700.1133Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationshipSalma A. Elshafey0Dalia El-Khouly1Esther T. Menze 2Mariane G. Tadros 3Egyptian Drug Authority, Giza, Egypt.Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ahram Canadian University, 6th of October City, Giza, Egypt.Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt.Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain-Shams University, Cairo 11566, Egypt.Neuroinflammation plays a crucial role in cognitive decline and neurodegenerative diseases, such as Alzheimer's. Within the central nervous system, microglia express Toll-like receptor 4 (TLR-4) abundantly, which prompts the secretion of proinflammatory cytokines like TNF-α, PGE2, IL-1β, and NO that are considered essential components of neuroinflammation. The emergence of neurological complications in COVID-19 patients has spurred investigations into TLR-4's potential involvement. Particularly intriguing is its contribution to the cytokine storms triggered by SARS-CoV-2 and SARS-CoV-1 infections. This comprehensive review investigates the TLR-4-induced neuroinflammation, focusing on its potential connection to cognitive decline and neurological symptoms triggered by COVID-19. By unraveling the intricate mechanisms by which TLR-4 mediates neuroinflammation, this review aims to shed light on its possible role in the context of COVID-19. Understanding the implications of TLR-4 activation could pave the way for targeted interventions to alleviate the cognitive and neurological impacts of COVID-19. As the world seeks to comprehend the far-reaching effects of the pandemic, grasping the nuances of TLR-4-associated neuroinflammation stands as a crucial step in addressing the challenges posed by cognitive decline and neurological manifestations in COVID-19 patients.https://aps.journals.ekb.eg/article_320652.htmlmicrogliainflammationtoll-like receptor 4myd88nf-kbsars-cov-2.
spellingShingle Salma A. Elshafey
Dalia El-Khouly
Esther T. Menze
Mariane G. Tadros
Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship
Archives of Pharmaceutical Sciences Ain Shams University
microglia
inflammation
toll-like receptor 4
myd88
nf-kb
sars-cov-2.
title Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship
title_full Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship
title_fullStr Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship
title_full_unstemmed Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship
title_short Insights on the role of TLR-4 in neuroinflammation: a hint on COVID-19 relationship
title_sort insights on the role of tlr 4 in neuroinflammation a hint on covid 19 relationship
topic microglia
inflammation
toll-like receptor 4
myd88
nf-kb
sars-cov-2.
url https://aps.journals.ekb.eg/article_320652.html
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AT daliaelkhouly insightsontheroleoftlr4inneuroinflammationahintoncovid19relationship
AT esthertmenze insightsontheroleoftlr4inneuroinflammationahintoncovid19relationship
AT marianegtadros insightsontheroleoftlr4inneuroinflammationahintoncovid19relationship