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Shared Inflammatory Pathology of Stroke and COVID-19

期刊

出版社

MDPI
DOI: 10.3390/ijms23095150

关键词

COVID-19; stroke; matrix-metalloproteinases; blood-brain barrier; endothelial cells; astrocytes

资金

  1. National Institute of Neurological Disorders and Stroke (NINDS)
  2. National Institute on Aging (NIA)
  3. BrightFocus Foundation [UH3 NS100598, UF1 NS100598]
  4. MARKVCID Consortium
  5. National Institute of Aging, Alzheimer's Disease Research Center Program [P20 AG068077]

向作者/读者索取更多资源

COVID-19 primarily affects the peripheral symptoms, but it can also impact the central nervous system (CNS). The association between stroke and COVID-19 suggests overlapping molecular mechanisms. This study proposes that SARS-CoV-2 infection leads to the upregulation of inflammatory proteins in peripheral macrophages, resulting in various negative effects on endothelial function, leading to disruption of the blood-brain barrier (BBB). This disruption alters CNS function by affecting astrocyte function and inflammasome activation.
Though COVID-19 is primarily characterized by symptoms in the periphery, it can also affect the central nervous system (CNS). This has been established by the association between stroke and COVID-19. However, the molecular mechanisms that cause stroke related to a COVID-19 infection have not been fully explored. More specifically, stroke and COVID-19 exhibit an overlap of molecular mechanisms. These similarities provide a way to better understand COVID-19 related stroke. We propose here that peripheral macrophages upregulate inflammatory proteins such as matrix metalloproteinases (MMPs) in response to SARS-CoV-2 infection. These inflammatory molecules and the SARS-CoV-2 virus have multiple negative effects related to endothelial dysfunction that results in the disruption of the blood-brain barrier (BBB). Finally, we discuss how the endothelial blood-brain barrier injury alters central nervous system function by leading to astrocyte dysfunction and inflammasome activation. Our goal is to elucidate such inflammatory pathways, which could provide insight into therapies to combat the negative neurological effects of COVID-19.

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