Innate Immune System Activation and Neuroinflammation in Down Syndrome and Neurodegeneration: Therapeutic Targets or Partners?
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Innate immune system activation and inflammation are associated with and may contribute to clinical outcomes in people with Down syndrome (DS), neurodegenerative diseases such as Alzheimer's disease (AD), and normal aging. In addition to serving as potential diagnostic biomarkers, innate immune system activation and inflammation may play a contributing or causal role in these conditions, leading to the hypothesis that effective therapies should seek to dampen their effects. However, recent intervention studies with the innate immune system activator granulocyte-macrophage colony-stimulating factor (GM-CSF) in animal models of DS, AD, and normal aging, and in an AD clinical trial suggest that activating the innate immune system and inflammation may instead be therapeutic. We consider evidence that DS, AD, and normal aging are accompanied by innate immune system activation and inflammation and discuss whether and when during the disease process it may be therapeutically beneficial to suppress or promote such activation.
Jacob C, Tollenaere M, Kachar H, Potier M, De Deyn P, Van Dam D Heliyon. 2025; 11(1):e41445.
PMID: 39850411 PMC: 11755057. DOI: 10.1016/j.heliyon.2024.e41445.
Costa A Brain Sci. 2024; 14(11).
PMID: 39595846 PMC: 11591668. DOI: 10.3390/brainsci14111084.
Kilany A, Elhadidy M, Ganem M, Nashaat N, Orabi G, Sakr M Int J Dev Disabil. 2024; 70(6):1082-1091.
PMID: 39564196 PMC: 11571723. DOI: 10.1080/20473869.2024.2383807.
Blood biomarkers in Down syndrome: Facilitating Alzheimer's disease detection and monitoring.
Petersen M, Flores-Aguilar L, Head E, Montoliu-Gaya L, Strydom A, Pape S Alzheimers Dement. 2024; 21(1):e14364.
PMID: 39535517 PMC: 11782192. DOI: 10.1002/alz.14364.
Low TGF-β1 plasma levels are associated with cognitive decline in Down syndrome.
Grasso M, Fidilio A, LEpiscopo F, Recupero M, Barone C, Bacalini M Front Pharmacol. 2024; 15:1379965.
PMID: 38576478 PMC: 10991739. DOI: 10.3389/fphar.2024.1379965.