Genome-wide transcriptomic profiling of human iPS-derived cardiomyocytes in response to ectopic expression of SARS-CoV-2 proteins
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ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE202869 | GEO | 2023/02/02
REPOSITORIES: GEO
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2020-09-21 | GSE156754 | GEO
Project description:Abstract: Although COVID-19–associated heart dysfunction has identified in individuals with SARS-CoV-2 infection, complex and multifaceted pathophysiology in patients complicates the investigation of pathogenesis related to clinical manifestations and mechanisms of cardiac dysfunction after viral invasion. This study comprehensively investigated pathogenesis regarding SARS-CoV-2 infection via tissue model established from human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and cardiomyopathy model induced by angiotensin II. We recapitulated cytopathic features of SARS-CoV-2-induced cardiac damage and monitored the course of cardiac complications after infection, which is critically important to develop therapeutics. We found that SARS-CoV-2 infection of hiPSC-CMs models progressively impaired contractile function and calcium handling and led to cell death. Therapeutics potential towards myocardial injury was further developed in our tissue model. We evaluated cardioprotective effects of extracellular vesicles (EVs) derived from hiPSC source on the infected tissues, indicating that EVs alleviated the impairment of contractile force and cardiac cell death following SARS-CoV-2 infection. We showed that enriched microRNA in hiPSC-EVs can modulate cardiac-specific processes. These findings suggested that cardiac manifestations examined from tissues models provided insights into cardiac injury induced by SARS-CoV-2 infection, and model systems allow the investigation of mechanisms driving cardiac dysfunction and iPSC-EVs served as a promising therapy to rescue cardiac damage from infection.
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Project description:To further investigate the underlying mechanisms of severe acute respiratory syndrome (SARS) pathogenesis and evaluate the therapeutic efficacy of potential drugs and vaccines it is necessary to use an animal model that is highly representative of the human condition in terms of respiratory anatomy, physiology and clinical sequelae. The ferret, Mustela putorius furo, supports SARS-CoV replication and displays many of the symptoms and pathological features seen in SARS-CoV-infected humans. We have recently established a SARS-CoV infection-challenge ferret platform for use in evaluating potential therapeutics to treat SARS. The main objective of the current study was to extend our previous results and identify early host immune responses upon infection and determine immune correlates of protection upon challenge with SARS-CoV in ferrets. Keywords: time course This study is a simple time course (58 day) examination of host responses in 35 SARS-CoV (TOR2) infected ferrets with the addition of a challenge inoculation of SARS CoV (TOR2) at day 29 post infection. Three mock-infected ferrets are included as negative controls. Due to the unavailability of ferret microarrays, Affymetrix Canine 2.0 oligonucleotide arrays were chosen following sequence analysis of our ferret cDNA library (~5000 clones) and demonstration of high levels of homology (>80%) between dog and ferret.
2013-05-28 | E-GEOD-11704 | biostudies-arrayexpress
Project description:Cardiovascular manifestations of COVID-19 include myocardial injury, heart failure, and myocarditis and are associated with long-term disability and mortality. SARS-CoV-2 RNA and antigens are found in the myocardium of COVID-19 patients, and human cardiomyocytes are susceptible to infection in cell or organoid cultures. While these observations raise the possibility that cardiomyocyte infection may contribute to the cardiac sequelae of COVID-19, a causal relationship between cardiomyocyte infection and myocardial dysfunction and pathology has not been established. Here, we generated a mouse model of cardiomyocyte-restricted infection by selectively expressing human angiotensin converting enzyme 2 (hACE2), the SARS-CoV-2 receptor, in cardiomyocytes. Inoculation of Myh6-Cre Rosa26LSL-hAce2 mice with SARS-CoV-2 resulted in viral replication within the heart, accumulation of macrophages, and moderate left ventricular (LV) systolic dysfunction. Cardiac pathology in this model was transient and resolved with viral clearance. Blockade of monocyte trafficking reduced myocardial viral replication and macrophage accumulation and suppressed the development of LV systolic dysfunction. These findings establish a mouse of model of SARS-CoV-2 cardiomyocyte infection that recapitulates features of cardiac dysfunctions of COVID-19 and suggests that both replication and resultant innate immune responses contribute to pathology
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2022-09-26 | PXD033492 | Pride
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.
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