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Nat Med. 2007 Sep;13(9):1029-31. Epub 2007 Aug 12.

Clearance of amyloid-beta by circulating lipoprotein receptors.

Author information

  • 1Frank P. Smith Laboratory for Neuroscience and Neurosurgical Research, Department of Neurosurgery, University of Rochester Medical School, Rochester, New York 14642, USA.

Abstract

Low-density lipoprotein receptor-related protein-1 (LRP) on brain capillaries clears amyloid beta-peptide (Abeta) from brain. Here, we show that soluble circulating LRP (sLRP) provides key endogenous peripheral 'sink' activity for Abeta in humans. Recombinant LRP cluster IV (LRP-IV) bound Abeta in plasma in mice and Alzheimer's disease-affected humans with compromised sLRP-mediated Abeta binding, and reduced Abeta-related pathology and dysfunction in a mouse model of Alzheimer disease, suggesting that LRP-IV can effectively replace native sLRP and clear Abeta.

PMID:
17694066
[PubMed - indexed for MEDLINE]
PMCID:
PMC2936449
Free PMC Article
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