Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

HPSC-derived cells to model Macrophage-mediated inflammation in COVID19 Hearts

ABSTRACT: We systematically compared autopsy samples from non-COVID-19 donors and COVID-19 patients using RNA-seq and immunohistochemistry. We observed strikingly increased expression levels of CCL2 as well as macrophage infiltration in heart tissues of COVID-19 patients. We generated an immuno-cardiac co-culture platform containing human pluripotent stem cell (hPSC)-derived cardiomyocytes (CMs) and macrophages. We found that macrophages induce increased reactive oxygen species (ROS) and apoptosis in CMs by secreting IL-6 and TNF-α after SARS-CoV-2 exposure. Using this immuno-cardiac co-culture platform, we performed a high content screen and identified ranolazine and tofacitinib as compounds that protect CMs from macrophage-induced cardiotoxicity. We established an immuno-host co-culture system to study macrophage-induced host cell damage following SARS-CoV-2 infection, and identified FDA-approved drug candidates that alleviate the macrophage-mediated hyper-inflammation and cellular injury.

ORGANISM(S): Homo sapiens

PROVIDER: GSE169241 | GEO | 2021/04/16

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Cardiomyocytes Infected by SARS-CoV-2 Recruit Cardiotoxic Macrophages [bulk RNA-seq dataset)

Project description:Heart injury has been reported in up to 20% of COVID-19 patients, yet the cause of myocardial histopathology is unknown. We examined heart tissue from autopsies of healthy and COVID-19 patients using RNA-seq and identified a strikingly increased CCL2 expression and macrophage population in COVID-19 heart sample. Transwell assays using hESC-derived cardiomyocytes (CMs) and macrophages revealed that SARS-CoV-2 infected CMs secrete CCL2, which recruits macrophages, and this was validated using adult human CMs. Macrophages recruited by CCL2 from infected CMs secrete IL-6 and TNF-α, which causes increased ROS and cell apoptosis of CMs. Finally, a high content chemical screen using FDA-approved drugs identified ranolozine and tofacitinib, which rescue SARS-CoV-2 infected CMs from macrophages-induced cardiotoxicity.

2020-10-29 | GSE151879 | GEO

Cardiomyocytes Infected by SARS-CoV-2 Recruit Cardiotoxic Macrophages [scRNA-seq dataset]

2020-10-29 | GSE151878 | GEO

Genome-wide Analyses Revealed the Global Impacts of SARS-CoV-2 Viral Gene Orf9c on Human Cardiomyocytes

Project description:Coronavirus disease 2019 (COVID-19) is a global pandemic caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). COVID-19 patients accompany with high frequencies of cardiac complications, which prominently contributed to the overall SARS-CoV-2-caused mortality. SARS-CoV-2 genome was reported to encode up to 14 genes. Currently, molecular mechanisms underlying SARS-CoV-2 viral gene-induced cardiac manifestations still remain elusive. Here, we overexpressed Orf9c, a SARS-CoV-2 encoded gene, in human pluripotent stem cell-derived cardiomyocytes (hPSC-CMs). Multiple genome-wide analyses were performed to investigate the global impacts of Orf9c on hPSC-CMs. The mRNA-seq indicated stress-related signaling pathways, including cell death, immune and inflammation responses, activated by Orf9c. High-throughput proteomics and Co-immunoprecipitation mass spectrometry studies revealed the global influence of Orf9c on the proteome of hPSC-CMs and Orf9c-interactive protein network in hPSC-CMs. Orf9c overexpression elevated protein expressions of key factors essential for apoptosis while suppressing protein factors crucial for ATP synthesis. Further experimental validations confirmed that Orf9c overexpression induced prominent cell death, abnormal calcium handling and electrical properties, and significantly reduced cellular ATP level in hPSC-CMs. Finally, administration of two FDA-approved drugs, Ivermectin and Meclizine, were proven by our study to restore ATP level to prominently ameliorate Orf9c-induced cell death and electrical abnormalities of hPSC-CMs. Overall, we comprehensively manifest global responses of host human heart muscle cells to SARS-CoV-2 gene Orf9c, characterized molecular mechanisms underlying Orf9c-induced cardiac abnormalities, and explored potentially therapeutic approaches to ameliorate cardiac dysfunctions in COVID-19 patients.

2022-02-23 | GSE171370 | GEO

Age-dependent pathogenic characteristics of SARS-CoV-2 infection in ferrets

Project description:While the seroprevalence of SARS-CoV-2 in healthy people does not differ significantly among age groups, those aged 65 years or older exhibit strikingly higher COVID-19 mortality compared to younger individuals. To further understand differing COVID-19 manifestations in patients of different ages, three age groups of ferrets are infected with SARS-CoV-2. Although SARS-CoV-2 is isolated from all ferrets regardless of age, aged ferrets (≥3 years old) shows higher viral loads, longer nasal virus shedding, and more severe lung inflammatory cell infiltration and clinical symptoms compared to juvenile (≤6 months) and young adult (1-2 years) groups. Furthermore, direct contact ferrets co-housed with the virus-infected aged group shed more virus than direct-contact ferrets co-housed with virus-infected juvenile or young adult ferrets. Transcriptome analysis of aged ferret lungs reveals strong enrichment of gene sets related to type I interferon, activated T cells, and M1 macrophage responses, mimicking the gene expression profile of severe COVID-19 patients. Thus, SARS-CoV-2-infected aged ferrets highly recapitulate COVID-19 patients with severe symptoms and are useful for understanding age-associated infection, transmission, and pathogenesis of SARS-CoV-2.

2021-12-31 | GSE189619 | GEO

Linear epitope-specific IgG responses to SARS-CoV-2 and related human coronaviruses in human COVID-19 convalescent sera

Project description:The on-going COVID-19 pandemic requires a deeper understanding of the long-term antibody responses that persist following SARS-CoV-2 infection. To that end, we determined epitope-specific IgG antibody responses in COVID-19 convalescent sera collected at 5 months post-diagnosis and compared that to sera from naïve individuals. Each serum sample was reacted with a high-density peptide microarray representing the complete proteome of SARS-CoV-2 as 15 mer peptides with 11 amino acid overlap and homologs of spike glycoprotein, nucleoprotein, membrane protein, and envelope small membrane protein from related human coronaviruses. Binding signatures were compared between COVID-19 convalescent patients and naïve individuals using the web service tool EPIphany.

2022-02-05 | E-MTAB-10740 | biostudies-arrayexpress

Multiple Early Factors Anticipate Post-Acute COVID-19 Sequelae

Project description:Post-acute sequelae of COVID-19 (PASC) represent an emerging global crisis. However, quantifiable risk-factors for PASC and their biological associations are poorly resolved. We executed a deep multi-omic, longitudinal investigation of 309 COVID-19 patients from initial diagnosis to convalescence (2-3 months later), integrated with clinical data, and patient-reported symptoms. We resolved four PASC-anticipating risk factors at the time of initial COVID-19 diagnosis: type 2 diabetes, SARS-CoV-2 RNAemia, Epstein-Barr virus viremia, and specific autoantibodies. In patients with gastrointestinal PASC, SARS-CoV-2-specific and CMV-specific CD8+ T cells exhibited unique dynamics during recovery from COVID-19. Analysis of symptom-associated immunological signatures revealed coordinated immunity polarization into four endotypes exhibiting divergent acute severity and PASC. We find that immunological associations between PASC factors diminish over time leading to distinct convalescent immune states. Detectability of most PASC factors at COVID-19 diagnosis emphasizes the importance of early disease measurements for understanding emergent chronic conditions and suggests PASC treatment strategies.

2022-02-01 | E-MTAB-10129 | biostudies-arrayexpress

A Multi-Organoid Platform Identifies CIART as a Key Factor for SARS-CoV-2 Infection [ATAC-seq]

Project description:COVID-19 is a systemic disease involving multiple organs. Human pluripotent stem cells (hPSCs) derived organoids/cells provide insight into cellular tropism and host response, yet the molecular mechanisms regulating SARS-CoV-2 infection remain poorly defined. Here, we systematically examined changes in transcript profiles caused by SARS-CoV-2 infection at different MOIs for airway organoids (AWOs), alveolar organoids (ALOs) and cardiomyocytes (CMs), and identified several genes, including CIART, that are generally implicated in controlling SARS-CoV-2 infection. AWOs, ALOs, and CMs derived from isogenic CIART-/- hPSCs were significantly resistant to SARS-CoV-2 infection, independent of viral entry. Single-cell RNA-seq further validated the decreased levels of SARS-CoV-2 infection in multi-ciliated cells of AWOs. CUT&RUN, ATAC-seq and RNA-seq analyses found that CIART controls SARS-CoV-2 infection at least in part through regulating NR4A1, a gene also identified from the multi-organoid analysis. Finally, transcriptional profiling and pharmacological inhibition revealed that the Retinoid X Receptor (RXR) pathway regulates SARS-CoV-2 infection downstream of CIART/NR4A1. The multi-organoid platform provides potential therapeutic targets for protection against COVID-19 across organ systems.

2022-12-07 | GSE202965 | GEO

A Multi-Organoid Platform Identifies CIART as a Key Factor for SARS-CoV-2 Infection [bulk RNA-seq]

2022-12-07 | GSE202963 | GEO