Prenatal immune activation and subsequent peripubertal stress as a new model of schizophrenia
Noriko Yoshimi1, Takashi Futamura, Kenji Hashimoto
1Division of Clinical Neuroscience, Chiba University Center for Forensic Mental Health, Chiba, Japan.
Insights
Maternal viral infections during pregnancy can increase the risk of neurodevelopmental disorders. A new model combines prenatal immune activation with peripubertal stress to study schizophrenia development.
Area of Science:
- Neuroscience
- Immunology
- Psychiatry
Background:
- Epidemiological studies link maternal viral infections during pregnancy to neurodevelopmental disorders like schizophrenia and autism.
- Prenatal maternal immune activation and peripubertal psychological stress are identified as critical environmental risk factors.
- Polyriboinosinic-polyribocytidylic acid (a viral mimic and Toll-like receptor-3 agonist) is commonly used to model prenatal immune activation in rodents.
Purpose of the Study:
- To contextualize and discuss the significance of a novel neurodevelopmental model of schizophrenia.
- This model combines prenatal immune activation with peripubertal stress.
Main Methods:
- Review and contextualization of recent findings on a combined prenatal immune activation and peripubertal stress model.
- Discussion of the established rodent model using polyriboinosinic-polyribocytidylic acid for prenatal immune activation.
Main Results:
- Highlights a new model for studying schizophrenia that integrates two key environmental risk factors: prenatal immune activation and peripubertal stress.
- Emphasizes the role of polyriboinosinic-polyribocytidylic acid in modeling prenatal immune activation.
Conclusions:
- The combined model offers a significant advancement in understanding the etiology of schizophrenia.
- Further research into this model can elucidate the complex interplay of prenatal and developmental factors in neurodevelopmental disorders.
Abstract:
Epidemiological studies show that maternal viral infection during pregnancy plays a key role in the etiology of neurodevelopmental disorders, such as schizophrenia and autism. Prenatal maternal immune activation and peripubertal psychological stress are key environmental risk factors for neurodevelopmental disorders. Viral mimic polyriboinosinic-polyribocytidylic acid is known to act as a Toll-like receptor-3 agonist. Polyriboinosinic-polyribocytidylic acid has been typically used to establish this rodent model of prenatal immune activation. Recently, Giovanoli et al. reported on a new neurodevelopmental model of schizophrenia based on combined prenatal immune activation and peripubertal stress. In this report, we place these findings into context and discuss their significance.
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