Recapitulation of pathophysiological features of AD in SARS-CoV-2-infected subjects

Autor: Elizabeth Griggs, Kyle Trageser, Sean Naughton, Eun-Jeong Yang, Brian Mathew, Grace Van Hyfte, Linh Hellmers, Nathalie Jette, Molly Estill, Li Shen, Tracy Fischer, Giulio Maria Pasinetti
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: eLife, Vol 12 (2023)
Druh dokumentu: article
ISSN: 2050-084X
DOI: 10.7554/eLife.86333
Popis: Infection with the etiological agent of COVID-19, SARS-CoV-2, appears capable of impacting cognition in some patients with post-acute sequelae of SARS-CoV-2 (PASC). To evaluate neuropathophysiological consequences of SARS-CoV-2 infection, we examine transcriptional and cellular signatures in the Brodmann area 9 (BA9) of the frontal cortex and the hippocampal formation (HF) in SARS-CoV-2, Alzheimer’s disease (AD), and SARS-CoV-2-infected AD individuals compared to age- and gender-matched neurological cases. Here, we show similar alterations of neuroinflammation and blood–brain barrier integrity in SARS-CoV-2, AD, and SARS-CoV-2-infected AD individuals. Distribution of microglial changes reflected by the increase in Iba-1 reveals nodular morphological alterations in SARS-CoV-2-infected AD individuals. Similarly, HIF-1α is significantly upregulated in the context of SARS-CoV-2 infection in the same brain regions regardless of AD status. The finding may help in informing decision-making regarding therapeutic treatments in patients with neuro-PASC, especially those at increased risk of developing AD.
Databáze: Directory of Open Access Journals