Mus musculus
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA150671 | ENA |
REPOSITORIES: ENA
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Project description:ABSTRACT Background: Viral myocarditis is a life-threatening illness that may lead to heart failure or cardiac arrhythmias. This study examined whether human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) could be used to model the pathogenic processes of coxsackievirus-induced viral myocarditis and to screen antiviral therapeutics for efficacy. Methods and Results: Human iPSC-CMs were infected with a luciferase-expressing mutant of the coxsackievirus B3 strain (CVB3-Luc). Brightfield microscopy, immunofluorescence, and calcium imaging were used to characterize virally infected hiPSC-CMs. Viral proliferation on hiPSC-CMs was subsequently quantified using bioluminescence imaging. For drug screening, select antiviral compounds including interferon beta 1 (IFNβ1), ribavirin, pyrrolidine dithiocarbamate (PDTC), and fluoxetine were tested for their capacity to abrogate CVB3-Luc proliferation in hiPSC-CMs in vitro. The ability of some of these compounds to reduce CVB3-Luc proliferation in hiPSC-CMs was consistent with the reported drug effects in previous studies. Finally, mechanistic analyses via gene expression profiling of hiPSC-CMs infected with CVB3-Luc revealed an activation of viral RNA and protein clearance pathways within these hiPSC-CMs after IFNβ1 treatment. Conclusions: This study demonstrates that hiPSC-CMs express the coxsackievirus and adenovirus receptor, are susceptible to coxsackievirus infection, and can be used to confirm antiviral drug efficacy. Our results suggest that the hiPSC-CM/CVB3-Luc assay is a sensitive platform that could be used to screen novel antiviral therapeutics for their effectiveness in a high-throughput fashion. For this experiment, human induced pluripotent stem cell derived cardiomyocytes were infected with coxsackievirus at multiplicity of infection (MOI) of 5 for 8 hours. Cells were treated with and without interferon beta 1 in order to determine if treatment activates antiviral response genes and/or viral clearance pathways. 4 total samples (2 for each condition) were analyzed
2014-05-19 | E-GEOD-57781 | biostudies-arrayexpress
Project description:Men are at an increased risk of dying from heart failure caused by inflammatory heart diseases such as atherosclerosis, myocarditis and dilated cardiomyopathy (DCM). We previously showed that immune responses in the heart are phenotypically distinct in male compared to female mice 10 days after infection resulting in severe DCM in males. Groups consisted of Infected Males, Infected Females, Uninfected Males and Uninfected females. There are 3 mice per group. A total of 12 samples were analyzed in this experiment (12 for 10 dpi and 12 for 90 dpi).
2012-01-19 | E-GEOD-35182 | biostudies-arrayexpress
Project description:ABSTRACT Background: Viral myocarditis is a life-threatening illness that may lead to heart failure or cardiac arrhythmias. This study examined whether human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) could be used to model the pathogenic processes of coxsackievirus-induced viral myocarditis and to screen antiviral therapeutics for efficacy. Methods and Results: Human iPSC-CMs were infected with a luciferase-expressing mutant of the coxsackievirus B3 strain (CVB3-Luc). Brightfield microscopy, immunofluorescence, and calcium imaging were used to characterize virally infected hiPSC-CMs. Viral proliferation on hiPSC-CMs was subsequently quantified using bioluminescence imaging. For drug screening, select antiviral compounds including interferon beta 1 (IFNβ1), ribavirin, pyrrolidine dithiocarbamate (PDTC), and fluoxetine were tested for their capacity to abrogate CVB3-Luc proliferation in hiPSC-CMs in vitro. The ability of some of these compounds to reduce CVB3-Luc proliferation in hiPSC-CMs was consistent with the reported drug effects in previous studies. Finally, mechanistic analyses via gene expression profiling of hiPSC-CMs infected with CVB3-Luc revealed an activation of viral RNA and protein clearance pathways within these hiPSC-CMs after IFNβ1 treatment. Conclusions: This study demonstrates that hiPSC-CMs express the coxsackievirus and adenovirus receptor, are susceptible to coxsackievirus infection, and can be used to confirm antiviral drug efficacy. Our results suggest that the hiPSC-CM/CVB3-Luc assay is a sensitive platform that could be used to screen novel antiviral therapeutics for their effectiveness in a high-throughput fashion. For this experiment, human induced pluripotent stem cell derived cardiomyocytes were infected with coxsackievirus at multiplicity of infection (MOI) of 5 for 8 hours. Cells were treated with and without interferon beta 1 in order to determine if treatment activates antiviral response genes and/or viral clearance pathways.
2014-05-19 | GSE57781 | GEO
Project description:The pathogenesis of viral myocarditis is a multifactorial process involving host genetics, viral genetics and the environment in which they interact. Here, we used a model of infection with Coxsackievirus B3 to characterize the contribution of host genetics to viral myocarditis. We determined heart CVB3 load in mice from a classical intercross between progenitors A/J (H2a) and B10.A-H2a (B10.A) of different genetic backgrounds but with a common H2 haplotype. Here we compare whole genome expression patterns in infected and uninfected A/J and B10.A mice in order to determine which gene expression programs are common or distinct to each strain. Total RNA obtained from hearts of 3 AJ, 3 B10.A(H2a), 3 CSS3 and 3 B6.chr3AJ that were infected or uninfected with CVB3(CG) at 400pfu/g and collected at day 4 post infection.
2011-05-01 | E-GEOD-19496 | biostudies-arrayexpress
Project description:The pathogenesis of viral myocarditis is a multifactorial process involving host genetics, viral genetics and the environment in which they interact. Here, we used a model of infection with Coxsackievirus B3 to characterize the contribution of host genetics to viral myocarditis. We determined heart CVB3 load in mice from a classical intercross between progenitors A/J (H2a) and B10.A-H2a (B10.A) of different genetic backgrounds but with a common H2 haplotype. Here we compare whole genome expression patterns in infected and uninfected A/J and B10.A mice in order to determine which gene expression programs are common or distinct to each strain.
2011-05-01 | GSE19496 | GEO
Project description:Myocarditis induced with Coxsackievirus B3 (CVB3) is commonly employed to study viral pathogenesis in mice. Although infectious virus is cleared after the acute phase, affected animals chronically develop the features of dilated cardiomyopathy, which may involve the mediation of immune and non-immune cells. To dissect this complexity, we performed single-cell RNA sequencing on heart cells obtained from healthy and myocarditic mice, leading us to note that myocarditic mice had significantly higher proportions of myeloid cells, CD4 and CD8 T cells, and fibroblasts, whereas NK cells, ILCs and B cells were low. While the transcriptome profiles of myeloid cells revealed detection of monocytes and macrophages of M2 phenotype with pathways important in immune metabolism and inflammation, T cells consisted of Th17 cells, CTLs, and Treg cells with transcriptome signatures critical for cytotoxic functions. Although fibroblasts detected in myocarditic mice were phenotypically heterogeneous, their transcriptomes played roles in fibrosis and regulation of inflammation and immune responses. Additionally, analysis of intercellular communication networks revealed unique interactions and signaling pathways in the cardiac cellulome, whereas myeloid cells and T cells in myocarditic mice revealed uniquely upregulated transcription factors modulating cardiac remodeling functions. Taken together, our data suggest that M2 cells, T cells, and fibroblasts may cooperatively or independently participate in the pathogenesis of viral myocarditis.
2022-01-16 | GSE174458 | GEO
Project description:The study of sex differences during the innate immune response against coxsackievirus B3 (CVB3)-induced myocarditis (12hr post infection)
| PRJNA136447 | ENA
Project description:Fulminant myocarditis (FM) is an acute fatal disease characterised by myocardial inflammation. Our previous study identified soluble growth stimulation- expressed gene 2 (sST2) as a sensitive and specific biomarker for early diagnosis of FM. However, its function in FM remains unclear.In the present study, we observed a marked elevation of sST2 in the plasma and hearts of mice with FM induced by coxsackievirus B3 (CVB3) and explored the main cellular sources of sST2 in FM. Moreover, using recombinant sST2 protein administration and unbiased transcriptomics analyses, we investigated the role and underlying mechanisms of sST2 in FM. Importantly, we found that sST2 has a novel non-classical function in cardiomyocytes, other than acting as an IL-33 decoy receptor. These findings reveal a novel role and action mechanism of sST2 in FM and suggest that sST2 may be a potential therapeutic target for FM.
2024-03-24 | GSE261940 | GEO
Project description:We infected two strains of mice, 129S1/SvImJ and 129X1/SvJ, with coxsackievirus type b3 (CVB3) at a dose of 500 pfu/g. 129S1 mice developed increased cardiopathology despite equal viral replication. We hypothesized that the increased cardiopathology might result from an ongoing pathologic host response that we could characterize by global expression profiling. Gene expression was assessed in hearts from 129S1 and 129X1 mice that were uninfected or infected for 6 days. Total RNA obtained from hearts of 3 129S1 and 3 129X1 that were infected or uninfected with CVB3(H3) at 500pfu/g and collected at day 6 post infection
2013-04-01 | E-GEOD-44706 | biostudies-arrayexpress
Project description:Viruses are obligate intracellular parasites that reshape the ultrastructure, composition and metabolism of host cells to suit their specific needs, although disparate viruses may modify their host in different ways. Such changes may be specifically induced by the virus to support the infection or be part of cellular antiviral responses or stress responses. Here, using state-of-the-art quantitative (phospho)proteomics, we reveal the unique proteome and phosphoproteome dynamics that occur in the host cells infected with the enterovirus coxsackievirus B3 (CVB3).
2020-07-23 | PXD011163 | Pride