Skip to content

Maternal Influenza Viral Infection Causes Schizophrenia-Like Alterations of 5-HT 2A and mGlu 2 Receptors in the Adult Offspring

José L. Moreno, Mitsumasa Kurita, Terrell Holloway, Javier López, Richard Cadagan, Luis Martínez‐sobrido, Adolfo Garcı́a-sastre, Javier González-Maeso

Journal of Neuroscience February 2, 2011 DOI: 10.1523/jneurosci.4230-10.2011 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Experimental study Peer reviewed
Population Mouse offspring of mothers infected with influenza A/WSN/33 (H1N1) virus
Intervention maternal influenza viral infection
Topics Serotonin
Keywords Offspring Schizophrenia object-oriented programming Receptor Virology Pregnancy Genetics
Citations 122
Key findings Maternal influenza infection in mice upregulates cortical 5-HT 2A receptors and downregulates mGlu 2 receptors, correlating with altered behavioral responses to hallucinogens and glutamate antipsychotics.

Abstract

Epidemiological studies indicate that maternal influenza viral infection increases the risk for schizophrenia in the adult offspring. The serotonin and glutamate systems are suspected in the etiology of schizophrenia, as well as in the mechanism of action of antipsychotic drugs. The effects of hallucinogens, such as psilocybin and mescaline, require the serotonin 5-HT 2A receptor, and induce schizophrenia-like psychosis in humans. In addition, metabotropic glutamate receptor mGlu 2/3 agonists show promise as a new treatment for schizophrenia. Here, we investigated the level of expression and behavioral function of 5-HT 2A and mGlu 2 receptors in a mouse model of maternal influenza viral infection. We show that spontaneous locomotor activity is diminished by maternal infection with the mouse-adapted influenza A/WSN/33 (H1N1) virus. The behavioral responses to hallucinogens and glutamate antipsychotics are both affected by maternal exposure to influenza virus, with increased head-twitch response to hallucinogens and diminished antipsychotic-like effect of the glutamate agonist. In frontal cortex of mice born to influenza virus-infected mothers, the 5-HT 2A receptor is upregulated and the mGlu 2 receptor is downregulated, an alteration that may be involved in the behavioral changes observed. Additionally, we find that the cortical 5-HT 2A receptor-dependent signaling pathways are significantly altered in the offspring of infected mothers, showing higher c-fos , egr-1 , and egr-2 expression in response to the hallucinogenic drug DOI. Identifying a biochemical alteration that parallels the behavioral changes observed in a mouse model of prenatal viral infection may facilitate targeting therapies for treatment and prevention of schizophrenia.

Comparable studies

Other preclinical and animal studies on serotonin, most cited first.

Citations in the library

Explore topics