Neonatal Infection with Neurotropic Influenza A Virus Affects Working Memory and Expression of Type III Nrg1 in Adult Mice
Overview
Neurology
Psychiatry
Affiliations
Epidemiological studies suggest that early life infections may contribute to the development of psychiatric disorders characterized by cognitive deficits. Here, we studied the effects of a neonatal influenza A/WSN/33 virus infection on locomotor activity, working memory and emotional behavior in adult mice. In addition to wild type mice, immunodeficient (Tap1(-/-)) mice lacking functional CD8(+) T cells, were included in the study to model the potential influence of a genetic deficit relating to virus clearance. Three to four months after the infection, infected Tap1(-/-) mice, but not wild type mice, exhibited deficits in working memory as well as increased rearing activity and anxiety. In the medial prefrontal cortices of these infected Tap1(-/-) mice reduced levels of type III Nrg1 transcripts were observed supporting a role for neuregulin 1 signaling in neuronal circuits involved in working memory. Virus replication, distribution or clearance did not differ between the two genotypes. The lack of CD8(+) T cells, however, appeared to contribute to a more pronounced glia response in Tap1(-/-) than in wild type mice. Thus, the present study suggest that the risk of developing deficits in cognitive and emotional behavior following a CNS infection during brain development is influenced by genetic variation in genes involved in the immune response.
Zhao C, Zhang X, Wang H, Qiang H, Liu S, Zhang C Int J Mol Sci. 2025; 26(2).
PMID: 39859371 PMC: 11765812. DOI: 10.3390/ijms26020657.
Association between Viral Infections and Risk of Autistic Disorder: An Overview.
Shuid A, Jayusman P, Shuid N, Ismail J, Nor N, Naina Mohamed I Int J Environ Res Public Health. 2021; 18(6).
PMID: 33802042 PMC: 7999368. DOI: 10.3390/ijerph18062817.
Kepinska A, Iyegbe C, Vernon A, Yolken R, Murray R, Pollak T Front Psychiatry. 2020; 11:72.
PMID: 32174851 PMC: 7054463. DOI: 10.3389/fpsyt.2020.00072.
Kappelmann N, Khandaker G, Dal H, Stochl J, Kosidou K, Jones P Psychol Med. 2018; 49(2):295-302.
PMID: 29622048 PMC: 6316362. DOI: 10.1017/S0033291718000831.
Keri S, Szabo C, Kelemen O Sci Rep. 2017; 7(1):4147.
PMID: 28646138 PMC: 5482801. DOI: 10.1038/s41598-017-03736-3.