Abstract:
:The deposition of aggregated amyloid-β peptides derived from the pro-amyloidogenic processing of the amyloid precurson protein (APP) into characteristic amyloid plaques (APs) is distinctive to Alzheimer's disease (AD). Alternative APP processing via the metalloprotease ADAM10 prevents amyloid-β formation. We tested whether downregulation of ADAM10 activity by its secreted endogenous inhibitor secreted-frizzled-related protein 1 (SFRP1) is a common trait of sporadic AD. We demonstrate that SFRP1 is significantly increased in the brain and cerebrospinal fluid of patients with AD, accumulates in APs and binds to amyloid-β, hindering amyloid-β protofibril formation. Sfrp1 overexpression in an AD-like mouse model anticipates the appearance of APs and dystrophic neurites, whereas its genetic inactivation or the infusion of α-SFRP1-neutralizing antibodies favors non-amyloidogenic APP processing. Decreased Sfrp1 function lowers AP accumulation, improves AD-related histopathological traits and prevents long-term potentiation loss and cognitive deficits. Our study unveils SFRP1 as a crucial player in AD pathogenesis and a promising AD therapeutic target.
journal_name
Nat Neuroscijournal_title
Nature neuroscienceauthors
Esteve P,Rueda-Carrasco J,Inés Mateo M,Martin-Bermejo MJ,Draffin J,Pereyra G,Sandonís Á,Crespo I,Moreno I,Aso E,Garcia-Esparcia P,Gomez-Tortosa E,Rábano A,Fortea J,Alcolea D,Lleo A,Heneka MT,Valpuesta JM,Esteban JA,doi
10.1038/s41593-019-0432-1subject
Has Abstractpub_date
2019-08-01 00:00:00pages
1258-1268issue
8eissn
1097-6256issn
1546-1726pii
10.1038/s41593-019-0432-1journal_volume
22pub_type
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