Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA404079 | ENA |
REPOSITORIES: ENA
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Project description:Differential interleukin-10 (IL-10) expression is suspected to contribute to strain specific differences in the course of Theiler's murine encephalomyelitis virus infection in mice. To determine the expression kinetics of IL-10 and related genes, RNA-based next generation sequencing (RNA-seq) was performed with brain cells obtained from infected SJL mice. Methods: 5-week old, female SJL mice were infected with the BeAn strain of TMEV and sacrificed 4, 7 or 14 days post infection (dpi). RNA was isolated from transversal sections of brain tissue at the level of the hippocampus. RNA-seq was performed on an Illumina HiSeq2500 system. Genes involved in Interleukin-10 (IL-10) signalling were analyzed and transcript levels were compared during the course of infection. Results: A significant upregulation of Interleukin-10 (Il10), Interleukin-10 receptor subunit α (ll10rα), Janus kinase 1 (Jak1) and signal transducer and activator of transcription 3 (Stat3) was detected 7 days post infection (dpi) compared to 4 dpi. Same genes showed a significant downregulation at 14 dpi compared to 7 dpi. Suppressor of cytokine signaling 3 (Socs3) was significantly downregulated at 14 dpi compared to 7 dpi. No differences were detected between transcript levels of interleukin-10 receptor subunit β (Il10rβ) and tyrosine kinase 2 (Tyk2). Conclusion: IL-10 pathway gene expression is transiently upregulated following TMEV-infection of SJL-mice.
2018-05-09 | GSE103698 | GEO
Project description:Goal: Determine the role of microglia in the antiviral response during neurotropic picornavirus infection of C57BL/6J and SJL/J mice and whether absence of microglia would affect CD4 and CD8 T cell functions. Methods: Brains from C57BL/6J and SJL/J mice treated with PLX5622 (to deplete microlgia) or control diet were harvested at 6 days post TMEV-infection. CD4+ T cells and CD8+ T cells were obtained using Easy Sep Mouse CD4+ T cell isolation Kit and Easy Sep Mouse CD8+ T cell isolation Kit (Stemcell). RNA was obtained using RNeasy (QIAGEN) and Illumina TruSeq stranded RNA Kit with Ribo-Zero Gold was then utilized to prepare cDNA library for RNA-seq. Results: Our results demonstrate strain-specific effects of the CSF1R-microglia axis in the context of neurotropic viral infection as well as inherent differences in microglial antigen presentation and subsequent T cell crosstalk that contribute to susceptibility to neurotropic picornavirus infection.
2021-05-10 | GSE160660 | GEO
Project description:The neurite outgrowth inhibitory myelin protein Nogo-A has been well studied in the context of central nervous system (CNS) injury and disease. We studied the effects of the application of neutralizing anti-Nogo-A antibodies (11C7 and 7B12) in intact CNS tissue in vitro using rat organotypic hippocampal slice cultures. This study had the purpose of elucidating the role of Nogo-A in the adult intact CNS and determining the consequences of its neutralization through antibody application. In vitro cultures treated with anti-Nogo-A antibody showed an elicited growth response. The results also gave indications that hippocampal circuitry might be altered due to the regulation at the synaptic and neurotransmission level.
2008-11-12 | GSE12483 | GEO
Project description:We examined the effect of grape seed extract (GSE), which are known to protect neurons against oxidative stress, on primary cultures of hippocampal astrocytes. GSE increased interleukin-6 (IL-6) expression. Microarrays are used to examine the effects of GSE on primary cultures of hippocampal neurons and astrocytes. Experiment Overall Design: Primary cultures of hippocampal neurons were treated with 0, 1, or 10 ug/ml of GSE for 24 hrs. Primary cultures of hippocampal astrocytes were treated with 0, 1, 10, or 100 ug/ml of GSE for 24 hrs.
2009-04-18 | E-GEOD-15285 | biostudies-arrayexpress
Project description:The neurite outgrowth inhibitory myelin protein Nogo-A has been well studied in the context of central nervous system (CNS) injury and disease. We studied the effects of the application of neutralizing anti-Nogo-A antibodies (11C7 and 7B12) in intact CNS tissue in vitro using rat organotypic hippocampal slice cultures. This study had the purpose of elucidating the role of Nogo-A in the adult intact CNS and determining the consequences of its neutralization through antibody application. In vitro cultures treated with anti-Nogo-A antibody showed an elicited growth response. The results also gave indications that hippocampal circuitry might be altered due to the regulation at the synaptic and neurotransmission level. Experiment Overall Design: Nogo-A function in the intact CNS tissue is not well known, but its neutralization in vivo produced a transitory growth response of Purkinje axons and of the corticospinal tract in intact adult rats (Buffo et al., 2000; Bareyre et al., 2002; Gianola et al., 2003). Nogo-A is relatively highly expressed in oligodendrocytes and some neurons of the hippocampus (Huber et al., 2002; Meier et al., 2003; Gil et al., 2006; Trifunovski et al., 2006). Organotypic hippocampal slice cultures are a good in vitro model to study hippocampal function and structure (Stoppini et al., 1991; 1993; Bahr, 1995; Gahwiler et al., 1997; Hakkoum et al., 2006). They mature in vitro and retain many in vivo features from a structural and functional perspective. We chose this model to study the effects of acute Nogo-A neutralization, using two function blocking monoclonal antibodies, 11C7 and 7B12 (Oertle et al., 2003; Wiessner et al., 2003; Liebscher et al., 2005), exclusively targeted against the Nogo-A specific region. Hippocampal slices from P7 Wistar rats were cultured for 21 DIV. Control untreated cultures where cultured for additional 5days for a total of 26DIV, while control IgG, and 11C7 and 7B12 were added to 21DIV cultures which were then further cultured for 5days, changing medium every 2 days. All the conditions were repeated in triplicates with separate cultures from different animals. For each condition and experimental replicate 24 cultures were pooled together before being processed for RNA extraction. Data analysis was performed by GeneSpring 7.2 (Silicon Genetics, Agilent, CA, US) comparing 11C7 and 7B12 treated samples versus Not treated and IgG treated, as controls. A present call filter (2 out of 3 present calls in at least one out of the 3 experimental replicates) was applied. Normalization was run per chip as well as per gene to the median of the control replicates. Data were statistical restricted through a 1-way Anova (pâ?¤0.05). A final threshold of â?¥1.2 fold of increase or decrease in the expression level of each single transcript was applied. Regulated transcripts have been assigned to functional categories according to GeneOntology as well as literature and database mining (Pubmed; Bioinformatics Harvester EMBL Heidelberg; Rat Genome Database).
2008-11-15 | E-GEOD-12483 | biostudies-arrayexpress
Project description:SJL & Balb. Leg and eye; 1 year, 10 months Keywords: time-course
2004-08-02 | GSE1092 | GEO
Project description:Purpose: Tissue tolerance is a host defense strategy that protects tissues from damage cuased by pathogens or the immune system. Here, we provide a framework for investigating the mechanisms of tissue tolerance in experimental models of colitis. We find that the program of tissue tolerance is preferentially expressed in thermoneutral mice, which protects them from injury-induced colitis and inflammation-induced colon cancer. The expression of intestinal tissue tolerance is mediated by an unexpected crosstalk between thermogenic adipocytes and intestinal epithelial cells.
2020-09-25 | GSE158488 | GEO
Project description:Acute influenza infection can be associated with neurological symptoms. Especially after the major pandemics reports about neuropsychiatric complications accumulated. However, the long-term consequences for the CNS of an infection with neurotropic but also non-neurotropic influenza A virus (IAV) variants remain largely elusive. The results presented here show that synapse loss in the hippocampus upon an infection with neurotropic H7N7 (rSC35M) as well as non-neurotropic H3N2 (maHK68) persists well beyond the acute phase of the disease. While hippocampal synapse number was significantly reduced 30 days post infection with both H7N7 and H3N2, full recovery could be observed 120 days post infection. Notably, infection with H1N1 (PR8) which was shown previously to affect spine number and hippocampus-dependent learning during the acute phase had no significant long-term effects. Spine loss was associated with an increase in the number of activated microglia, reduced long-term potentiation and an impairment in spatial memory formation in the water maze indicating long-term inflammation induced functional and structural alterations in the hippocampus. Our data, therefore, provide evidence that while neuroinflammation induced by neurotropic H7N7 showed the strongest effect, also the systemic infection with a non-neurotropic influenza virus can result in long-term impairments in synapse number and function in the hippocampus. While young animals fully recover the outcome might be different in aged or otherwise compromised individuals, thereby directing future treatment strategies to pay attention to IAV induced processes of neuroinflammation.
2018-12-31 | GSE106620 | GEO
Project description:Transcriptome analysis of hippocampal RNA samples from wild-type, 5xFAD, 5xFAD;eIF2α+/S51A and eIF2α+/S51A mice Our transcriptome analyses showed clear transcriptional alterations in hippocampi of 5xFAD compared to wild type mice that were not corrected by the eIF2αS51A allele. Hemizygous 5xFAD mice, which were on a genetic background of B6/SJL, were crossed with eIF2α+/S51A mice (C57BL/6J background), to generate the offspring that was analyzed in the microarray. Hippocampal samples of 12 mice (4 groups: wild-type, 5xFAD, 5xFAD;eIF2α+/S51A and eIF2α+/S51A) were processed using Affymetrix Mouse Exon 1.0 ST platform. Array data was processed by Affymetrix Exon Array Computational Tool. No technical replicates were performed.
2013-09-10 | E-GEOD-50521 | biostudies-arrayexpress