Microglial Activation and Neuronal Apoptosis in Bornavirus Infected Neonatal Lewis Rats

Lewis rats neonatally infected with Borna disease virus have a behavioral syndrome characterized by hyperactivity, movement disorders, and abnormal social interactions. Virus is widely distributed in brain; however, neuropathology is focused in dentate gyrus, cerebellum, and neocortex where granule...

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Veröffentlicht in:Brain pathology (Zurich, Switzerland) Switzerland), 2000-04, Vol.10 (2), p.260-272
Hauptverfasser: Weissenböck, Herbert, Hornig, Mady, Hickey, William F., Lipkin, W. Ian
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Hornig, Mady
Hickey, William F.
Lipkin, W. Ian
description Lewis rats neonatally infected with Borna disease virus have a behavioral syndrome characterized by hyperactivity, movement disorders, and abnormal social interactions. Virus is widely distributed in brain; however, neuropathology is focused in dentate gyrus, cerebellum, and neocortex where granule cells, Purkinje cells and pyramidal cells are lost through apoptosis. Although a transient immune response is present, its distribution does not correlate with sites of damage. Neuropathology is instead colocalized with microglial proliferation and expression of MHC class I and class II, ICAM, CD4 and CD8 molecules. Targeted pathogenesis in this system appears to be linked to microglial activation and susceptibility of specific neuronal populations to apoptosis rather than viral tropism or virus‐specific immune responses.
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subjects Animals
Animals, Newborn - physiology
Antigens - metabolism
Apoptosis - physiology
Borna Disease - metabolism
Borna Disease - pathology
Borna Disease - physiopathology
Borna disease virus
Borna disease virus - genetics
Borna disease virus - metabolism
Brain - metabolism
Brain - pathology
Disease Models, Animal
Microglia - metabolism
Microglia - physiology
Neurons - physiology
Nucleoproteins - metabolism
Phenotype
Rats
Rats, Inbred Lew - physiology
RNA, Viral - metabolism
Time Factors
Tissue Distribution
Viral Proteins - metabolism
title Microglial Activation and Neuronal Apoptosis in Bornavirus Infected Neonatal Lewis Rats
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