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López-Aranda MF, Boxx GM, Phan M, Bach K, Mandanas R, Herrera I, Taloma S, Thadani C, Lu O, Bui R, Liu S, Li N, Zhou Y, Cheng G, Silva AJ. Role of type I interferon signaling and microglia in the abnormal long term potentiation and object place recognition deficits of male mice with a mutation of the Tuberous Sclerosis 2 gene. Biological Psychiatry Global Open Science 2022. [PMID: 37519458 PMCID: PMC10382699 DOI: 10.1016/j.bpsgos.2022.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background Tuberous sclerosis complex is a genetic disorder associated with high rates of intellectual disability and autism. Mice with a heterozygous null mutation of the Tsc2 gene (Tsc2+/-) show deficits in hippocampal-dependent tasks and abnormal long-term potentiation (LTP) in the hippocampal CA1 region. Although previous studies focused on the role of neuronal deficits in the memory phenotypes of rodent models of tuberous sclerosis complex, the results presented here demonstrate a role for microglia in these deficits. Methods To test the possible role of microglia and type I interferon in abnormal hippocampal-dependent memory and LTP of Tsc2+/- mice, we used field recordings in CA1 and the object place recognition (OPR) task. We used the colony stimulating factor 1 receptor inhibitor PLX5622 to deplete microglia in Tsc2+/- mice and interferon alpha/beta receptor alpha chain null mutation (Ifnar1-/-) to manipulate a signaling pathway known to modulate microglia function. Results Unexpectedly, we demonstrate that male, but not female, Tsc2+/- mice show OPR deficits. These deficits can be rescued by depletion of microglia and by the Ifnar1-/- mutation. In addition to rescuing OPR deficits, depletion of microglia also reversed abnormal LTP of the Tsc2+/- mice. Altogether, our results suggest that altered IFNAR1 signaling in microglia causes the abnormal LTP and OPR deficits of male Tsc2+/- mice. Conclusions Microglia and IFNAR1 signaling have a key role in the hippocampal-dependent memory deficits and abnormal hippocampal LTP of Tsc2+/- male mice.
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López-Aranda MF, Chattopadhyay I, Boxx GM, Fraley ER, Silva TK, Zhou M, Phan M, Herrera I, Taloma S, Mandanas R, Bach K, Gandal M, Geschwind DH, Cheng G, Rzhetsky A, White SA, Silva AJ. Postnatal immune activation causes social deficits in a mouse model of tuberous sclerosis: Role of microglia and clinical implications. Sci Adv 2021; 7:eabf2073. [PMID: 34533985 PMCID: PMC8448451 DOI: 10.1126/sciadv.abf2073] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 07/27/2021] [Indexed: 05/03/2023]
Abstract
There is growing evidence that prenatal immune activation contributes to neuropsychiatric disorders. Here, we show that early postnatal immune activation resulted in profound impairments in social behavior, including in social memory in adult male mice heterozygous for a gene responsible for tuberous sclerosis complex (Tsc2+/−), a genetic disorder with high prevalence of autism. Early postnatal immune activation did not affect either wild-type or female Tsc2+/− mice. We demonstrate that these memory deficits are caused by abnormal mammalian target of rapamycin–dependent interferon signaling and impairments in microglia function. By mining the medical records of more than 3 million children followed from birth, we show that the prevalence of hospitalizations due to infections in males (but not in females) is associated with future development of autism spectrum disorders (ASD). Together, our results suggest the importance of synergistic interactions between strong early postnatal immune activation and mutations associated with ASD.
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Affiliation(s)
- Manuel F. López-Aranda
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Ishanu Chattopadhyay
- Department of Medicine and Human Genetics, Section of Computational Biomedicine and Biomedical Data Science, and Institute for Genomics and Systems Biology, University of Chicago, Chicago, IL, USA
- Department of Medicine, University of Chicago, Chicago, IL, USA
| | - Gayle M. Boxx
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Elizabeth R. Fraley
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Tawnie K. Silva
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Miou Zhou
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Miranda Phan
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Isaiah Herrera
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Sunrae Taloma
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Rochelle Mandanas
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Karen Bach
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
| | - Michael Gandal
- Department of Neurology, Center for Autism Research and Treatment, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Daniel H. Geschwind
- Department of Neurology, Center for Autism Research and Treatment, Semel Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | - Genhong Cheng
- Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, USA
| | - Andrey Rzhetsky
- Department of Medicine and Human Genetics, Section of Computational Biomedicine and Biomedical Data Science, and Institute for Genomics and Systems Biology, University of Chicago, Chicago, IL, USA
- Department of Medicine, University of Chicago, Chicago, IL, USA
- Department of Human Genetics, University of Chicago, Chicago, IL, USA
| | - Stephanie A. White
- Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Alcino J. Silva
- Departments of Neurobiology, Psychology, and Psychiatry, Integrative Center for Learning and Memory, and Brain Research Institute, University of California, Los Angeles, Los Angeles, CA, USA
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