ArticleFrontiers in aging neuroscience2025
Effects of West Nile virus on behavioral and cognitive performance, cortical Aβ pathology, viral loads, and immune measures of middle-aged NL-G-F/E3 and NL-G-F/E4 mice.
Article in Frontiers in aging neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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12 authors.
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Abstract
Introduction: West Nile Virus (WNV) can cause severe and long-lasting neurological disease and results in some neuropathology and neuroinflammation seen in Alzheimer's disease (AD). Exposure to WNV might impact AD-relevant behavioral and cognitive performance and neuropathology via AD-susceptibility genes (i.e., E4) and by inducing neuroinflammation (i.e., increases in TCR-α, IFN-γ, TNF-α, and CXCL- 10). There are three human apolipoprotein E (E) isoforms, which play a role in cholesterol metabolism: E2, E3, and E4. Compared to E3, E4 is an AD risk factor. Methods: We crossed knock-in (KI) mice expressing human amyloid precursor protein (APP) containing the dominant NL-G-F mutations with human apoE targeted replacement (TR) mice and used middle-aged NL-G-F/E3 and NL-G-F/E4 mice to assess the role of prior WNV (subtype Kunjin virus) (KUNV) exposure on hAPP/Aβ-induced behavioral alterations, cognitive injury, circadian body temperatures, viral loads, neuropathology, and transcript levels of four immune measures important in the detrimental effects of KUNV on brain function. Results: KUNV affected physiological, behavioral, cognitive, amyloid pathology, viral load, and immune measures in middle aged NL-G-F mice in an apoE isoform-dependent fashion. NL-G-F/E4 mice were more susceptible to KUNV induced cognitive injury and prolonged viral load in the cortex. Discussion: These results support an important apoE isoform-dependent role in modulating phenotypes in the NL-G-F AD mouse model following WNV exposure.
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