Investigation of cerebrocortical and cerebellar pathology in canine fucosidosis and comparison to aged brain

Gauthami S. Kondagari, Jessica Yang, Rosanne M. Taylor

    Research output: Contribution to journalArticle

    13 Citations (Scopus)

    Abstract

    Fucosidosis is a fatal inherited neurodegenerative disease. The pathologic changes in brain which occur with progression from preclinical to late clinical disease were investigated in fucosidosis affected dogs. As aging also causes neurodegeneration and lysosomal dysfunction, pathologic markers of fucosidosis were compared to changes in the aging canine brain. Preclinical fucosidosis cerebral cortex and cerebellum revealed early increases in all neurodegenerative markers studied including apoptosis (2.1 fold), pyramidal neuronal loss (0.9 fold decrease) and Purkinje cell loss (1.2 fold decrease) compared to age matched controls. Increased axonal spheroid formation (> 100 fold in cortex, 80 fold in cerebellum), microgliosis (9.2 fold) and astrocytosis (2.1 fold in cortex and 0.5 fold in cerebellum) were distinctive features of preclinical fucosidosis brain in all regions examined. This neuropathology progressed as the dogs developed severe clinical signs, with advanced fucosidosis brain exhibiting the greatest parenchymal destruction. These measures of the neurodegenerative and inflammatory changes in fucosidosis brain will assist monitoring disease progression and response to therapy.
    Original languageEnglish
    Pages (from-to)605-613
    Number of pages9
    JournalNeurobiology of Disease
    Volume41
    Issue number3
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Animal model
    • Cerebellum
    • Cerebral cortex
    • English springer spaniel
    • Fucosidosis
    • Neurodegeneration
    • Neuroinflammatory

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