Cited by 67Infectious Encephalopathies and EncephalitisTryptophan and brain disordersNeuroscience and Neuropharmacology Research

Influenza A virus infection causes alterations in expression of synaptic regulatory genes combined with changes in cognitive and emotional behaviors in mice

Beraki, S, Aronsson, F, Karlsson, H, Ögren, S O, Kristensson, K·2005·Molecular Psychiatry

Abstract

Epidemiological studies have indicated a link between certain neuropsychiatric diseases and exposure to viral infections. In order to examine long-term effects on behavior and gene expression in the brain of one candidate virus, we have used a model involving olfactory bulb injection of the neuro-adapted influenza A virus strain, WSN/33, in C57Bl/6 mice. Following this olfactory route of invasion, the virus targets neurons in the medial habenular, midline thalamic and hypothalamic nuclei as well as monoaminergic neurons in the brainstem. The mice survive and the viral infection is cleared from the brain within 12 days. When tested 14-20 weeks after infection, the mice displayed decreased anxiety in the elevated plus-maze and impaired spatial learning in the Morris water maze test. Elevated transcriptional activity of two genes encoding synaptic regulatory proteins, regulator of G-protein signaling 4 and calcium/calmodulin-dependent protein kinase IIalpha, was found in the amygdala, hypothalamus and cerebellum. It is of particular interest that the gene encoding RGS4, which has been related to schizophrenia, showed the most pronounced alteration. This study indicates that a transient influenza virus infection can cause persistent changes in emotional and cognitive functions as well as alterations in the expression of genes involved in the regulation of synaptic activities.

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Crossref · 10.1038/sj.mp.4001545

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Authors
Beraki, S., Aronsson, F., Karlsson, H., Ögren, S. O., & Kristensson, K.
Affiliations
Karolinska Institutet (SE)
Corresponding author
Ögren, S O
Venue
Molecular Psychiatry
Published
2004-07-06
Volume
10
Issue
3
Pages
299-308
ISSN
  • 1359-4184 (ISSN-L)
  • 1476-5578
OpenAlex
W1980164431
Cited by
67
References
48
Citations by year
2026: 2 · 2025: 2 · 2024: 1 · 2023: 7 · 2022: 2 · 2021: 2 · 2020: 4 · 2019: 1 · 2018: 1 · 2017: 1 · 2015: 5 · 2014: 6 · 2013: 2 · 2012: 4
FWCI
3.17
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Infectious Encephalopathies and Encephalitis
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
influenza A virus, anxiety, spatial learning impairment, RGS4, CaMKIIα, synaptic gene expression, amygdala, hypothalamus, cerebellum, schizophrenia, emotional behavior, cognitive function
MeSH terms
Animals, Cognition, Cognition Disorders, Emotions, Gene Expression Regulation, Limbic System, Male, Mice, Inbred C57BL, Motor Activity, Orthomyxoviridae Infections, Influenza A virus, Space Perception, Synapses, Transcription, Genetic, Neurotransmitter Agents, Maze Learning, Mice

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