Failed Retrograde Transport of NGF in a Mouse Model of Down's Syndrome: Reversal of Cholinergic Neurodegenerative Phenotypes Following NGF Infusion

Age-related degeneration of basal forebrain cholinergic neurons (BFCNs) contributes to cognitive decline in Alzheimer's disease and Down's syndrome. With aging, the partial trisomy 16 (Ts65Dn) mouse model of Down's syndrome exhibited reductions in BFCN size and number and regressive c...

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Veröffentlicht in:Proceedings of the National Academy of Sciences - PNAS 2001-08, Vol.98 (18), p.10439-10444
Hauptverfasser: Cooper, Jonathan D., Salehi, Ahmad, Delcroix, Jean-Dominique, Howe, Charles L., Belichenko, Pavel V., Chua-Couzens, Jane, Kilbridge, Joshua F., Carlson, Elaine J., Epstein, Charles J., Mobley, William C.
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container_issue 18
container_start_page 10439
container_title Proceedings of the National Academy of Sciences - PNAS
container_volume 98
creator Cooper, Jonathan D.
Salehi, Ahmad
Delcroix, Jean-Dominique
Howe, Charles L.
Belichenko, Pavel V.
Chua-Couzens, Jane
Kilbridge, Joshua F.
Carlson, Elaine J.
Epstein, Charles J.
Mobley, William C.
description Age-related degeneration of basal forebrain cholinergic neurons (BFCNs) contributes to cognitive decline in Alzheimer's disease and Down's syndrome. With aging, the partial trisomy 16 (Ts65Dn) mouse model of Down's syndrome exhibited reductions in BFCN size and number and regressive changes in the hippocampal terminal fields of these neurons with respect to diploid controls. The changes were associated with significantly impaired retrograde transport of nerve growth factor (NGF) from the hippocampus to the basal forebrain. Intracerebroventricular NGF infusion reversed well established abnormalities in BFCN size and number and restored the deficit in cholinergic innervation. The findings are evidence that even BFCNs chronically deprived of endogenous NGF respond to an intervention that compensates for defective retrograde transport. We suggest that age-related cholinergic neurodegeneration may be a treatable disorder of failed retrograde NGF signaling.
doi_str_mv 10.1073/pnas.181219298
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subjects Aging - metabolism
Aging - pathology
Animals
Biological Sciences
Biological Transport, Active
Biology
Cell Count
Cells
Cholinergic Fibers - drug effects
Cholinergic Fibers - metabolism
Cholinergic Fibers - pathology
Cholinergics
Disease Models, Animal
Down Syndrome - drug therapy
Down Syndrome - metabolism
Down Syndrome - pathology
Downs syndrome
Forebrain
Hippocampus
Hippocampus - metabolism
Humans
Infusions, Parenteral
Internalization
Mice
Mice, Mutant Strains
Nerve Degeneration - drug therapy
Nerve Degeneration - metabolism
Nerve Degeneration - pathology
Nerve Growth Factor - administration & dosage
Nerve Growth Factor - metabolism
Neurology
Neurons
Neuroscience
Phenotype
Phenotypes
Prosencephalon - drug effects
Prosencephalon - metabolism
Prosencephalon - pathology
Receptors
Rodents
Septum
Trisomy
title Failed Retrograde Transport of NGF in a Mouse Model of Down's Syndrome: Reversal of Cholinergic Neurodegenerative Phenotypes Following NGF Infusion
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