ArticleJournal of biomedical science2026
Distinct and combined interferon-ɑ/β-receptor-1 loss in neurons and astrocytes disrupt brain energy metabolism and drive Parkinsonian dementia.
Article in Journal of biomedical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundDysregulated interferon-alpha/beta-receptor 1 (IFNAR1) signaling was recently identified to contribute to the development of sporadic Parkinson's disease (PD) into PD with Dementia (PDD). The molecular, cellular, and phenotypic impacts of brain IFNAR1 loss in aging have not been explored in vivo, which may reveal novel disease mechanisms and therapeutic targets.
methodsSingle nuclei RNA sequencing (snRNA-seq), liquid chromatography tandem mass spectrometry (LC-MS/MS), functional metabolic mapping, flow cytometry, quantitative PCR (qPCR), in situ hybridization, immunofluorescence and immunohistochemistry, Western blotting, and behavior analyses were used to investigate the molecular, cellular, and phenotypic impacts of IFNAR1 loss in vivo.
resultsBaseline IFNAR1 expression varies among major brain cell types, including neurons and astrocytes, and is differentially affected in PD and Lewy Body Dementia patients compared to unaffected controls. Neuron- and astrocyte-specific transcriptomic and proteomic alterations in Ifnar1
conclusionsIFNAR1 plays a crucial role in brain and mitochondrial homeostasis, loss of which results in neurodegeneration and neuropathology resembling PDD. Differential neuropathology and behavioral outcomes upon neuronal vs astrocytic IFNAR1 loss emphasizes a need for understanding neurodegenerative pathophysiology in cell-specific contexts. Trial registration Not applicable as the study does not include a clinical trial.
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