PMID- 31526827 OWN - NLM STAT- MEDLINE DCOM- 20210308 LR - 20210308 IS - 1090-2139 (Electronic) IS - 0889-1591 (Linking) VI - 83 DP - 2020 Jan TI - Maternal immune activation during pregnancy impacts on brain structure and function in the adult offspring. PG - 56-67 LID - S0889-1591(19)30178-3 [pii] LID - 10.1016/j.bbi.2019.09.011 [doi] AB - Gestational infection constitutes a risk factor for the occurrence of psychiatric disorders in the offspring. Activation of the maternal immune system (MIA) with subsequent impact on the development of the fetal brain is considered to form the neurobiological basis for aberrant neural wiring and the psychiatric manifestations later in offspring life. The examination of validated animal models constitutes a premier resource for the investigation of the neural underpinnings. Here we used a mouse model of MIA based upon systemic treatment of pregnant mice with Poly(I:C) (polyriboinosinic-polyribocytidilic acid), for the unbiased and comprehensive analysis of the impact of MIA on adult offspring brain activity, morphometry, connectivity and function by a magnetic resonance imaging (MRI) approach. Overall lower neural activity, smaller brain regions and less effective fiber structure were observed for Poly(I:C) offspring compared to the control group. The corpus callosum was significantly smaller and presented with a disruption in myelin/ fiber structure in the MIA progeny. Subsequent resting-state functional MRI experiments demonstrated a paralleling dysfunctional interhemispheric connectivity. Additionally, while the overall flow of information was intact, cortico-limbic connectivity was hampered and limbic circuits revealed hyperconnectivity in Poly(I:C) offspring. Our study sheds new light on the impact of maternal infection during pregnancy on the offspring brain and identifies aberrant resting-state functional connectivity patterns as possible correlates of the behavioral phenotype with relevance for psychiatric disorders. CI - Copyright (c) 2019 The Authors. Published by Elsevier Inc. All rights reserved. FAU - Kreitz, Silke AU - Kreitz S AD - Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander University Erlangen-Nurnberg (FAU), Germany. FAU - Zambon, Alice AU - Zambon A AD - Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Austria. FAU - Ronovsky, Marianne AU - Ronovsky M AD - Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Austria. FAU - Budinsky, Lubos AU - Budinsky L AD - Department of Biomedical Imaging and Image-Guided Therapy, Division of Molecular and Gender Imaging, Medical University of Vienna, Austria. FAU - Helbich, Thomas H AU - Helbich TH AD - Department of Biomedical Imaging and Image-Guided Therapy, Division of Molecular and Gender Imaging, Medical University of Vienna, Austria. FAU - Sideromenos, Spyros AU - Sideromenos S AD - Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Austria. FAU - Ivan, Claudiu AU - Ivan C AD - Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander University Erlangen-Nurnberg (FAU), Germany. FAU - Konerth, Laura AU - Konerth L AD - Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander University Erlangen-Nurnberg (FAU), Germany. FAU - Wank, Isabel AU - Wank I AD - Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander University Erlangen-Nurnberg (FAU), Germany. FAU - Berger, Angelika AU - Berger A AD - Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Austria. FAU - Pollak, Arnold AU - Pollak A AD - Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Austria. FAU - Hess, Andreas AU - Hess A AD - Institute of Experimental and Clinical Pharmacology and Toxicology, Friedrich-Alexander University Erlangen-Nurnberg (FAU), Germany. Electronic address: andreas.hess@fau.de. FAU - Pollak, Daniela D AU - Pollak DD AD - Department of Neurophysiology and Neuropharmacology, Medical University of Vienna, Austria. Electronic address: daniela.pollak@meduniwien.ac.at. LA - eng GR - P 27520/FWF_/Austrian Science Fund FWF/Austria PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190914 PL - Netherlands TA - Brain Behav Immun JT - Brain, behavior, and immunity JID - 8800478 RN - O84C90HH2L (Poly I-C) SB - IM MH - Animals MH - *Behavior, Animal MH - Brain/diagnostic imaging MH - Disease Models, Animal MH - Female MH - Mental Disorders/*etiology/*immunology MH - Mice MH - Poly I-C/immunology MH - Pregnancy/*immunology MH - Prenatal Exposure Delayed Effects/*immunology/*psychology OTO - NOTNLM OT - Animal model OT - Corpus callosum OT - Cortico-limbic connectivity OT - MEMRI OT - Poly(I:C) OT - fMRI EDAT- 2019/09/19 06:00 MHDA- 2021/03/09 06:00 CRDT- 2019/09/19 06:00 PHST- 2019/02/18 00:00 [received] PHST- 2019/09/03 00:00 [revised] PHST- 2019/09/12 00:00 [accepted] PHST- 2019/09/19 06:00 [pubmed] PHST- 2021/03/09 06:00 [medline] PHST- 2019/09/19 06:00 [entrez] AID - S0889-1591(19)30178-3 [pii] AID - 10.1016/j.bbi.2019.09.011 [doi] PST - ppublish SO - Brain Behav Immun. 2020 Jan;83:56-67. doi: 10.1016/j.bbi.2019.09.011. Epub 2019 Sep 14.