Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
3070090 | Neurobiology of Disease | 2009 | 12 Pages |
Abstract
Finnish variant LINCL (vLINCLFin) is the result of mutations in the CLN5 gene. To gain insights into the pathological staging of this fatal pediatric disorder, we have undertaken a stereological analysis of the CNS of Cln5 deficient mice (Cln5â/â) at different stages of disease progression. Consistent with human vLINCLFin, these Cln5â/â mice displayed a relatively late onset regional atrophy and generalized cortical thinning and synaptic pathology, preceded by early and localized glial responses within the thalamocortical system. However, in marked contrast to other forms of NCL, neuron loss in Cln5â/â mice began in the cortex and only subsequently occurred within thalamic relay nuclei. Nevertheless, as in other NCL mouse models, this progressive thalamocortical neuron loss was still most pronounced within the visual system. These data provide unexpected evidence for a distinctive sequence of neuron loss in the thalamocortical system of Cln5â/â mice, diametrically opposed to that seen in other forms of NCL.
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Authors
Carina von Schantz, Catherine Kielar, Stine N. Hansen, Charlie C. Pontikis, Noreen A. Alexander, Outi Kopra, Anu Jalanko, Jonathan D. Cooper,