Enteric coronavirus infection and treatment modeled with an immunocompetent human intestine-on-a-chip
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA765050 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR16002403_1.fastq.gz | Fastqsanger.gz | |||
| SRR16002403_2.fastq.gz | Fastqsanger.gz | |||
| SRR16002404_1.fastq.gz | Fastqsanger.gz | |||
| SRR16002404_2.fastq.gz | Fastqsanger.gz | |||
| SRR16002405_1.fastq.gz | Fastqsanger.gz |
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Project description:Many patients infected with coronaviruses, such as SARS-CoV-2 and NL63 that use ACE2 receptors to infect cells, exhibit gastrointestinal symptoms and viral proteins are found in the human gastrointestinal tract, yet little is known about the inflammatory and pathological effects of coronavirus infection on the human intestine. Here, we used a human intestine-on-a-chip (Intestine Chip) microfluidic culture device lined by patient organoid-derived intestinal epithelium interfaced with human vascular endothelium to study host cellular and inflammatory responses to infection with NL63 coronavirus. These organoid-derived intestinal epithelial cells dramatically increased their ACE2 protein levels when cultured under flow in the presence of peristalsis-like mechanical deformations in the Intestine Chips compared to when cultured statically as organoids or in Transwell inserts. Infection of the intestinal epithelium with NL63 on-chip led to inflammation of the endothelium as demonstrated by loss of barrier function, increased cytokine production, and recruitment of circulating peripheral blood mononuclear cells (PMBCs). Treatment of NL63 infected chips with the approved protease inhibitor drug, nafamostat, inhibited viral entry and resulted in a reduction in both viral load and cytokine secretion, whereas remdesivir, one of the few drugs approved for COVID19 patients, was not found to be effective and it also was toxic to the endothelium. This model of intestinal infection was also used to test the effects of other drugs that have been proposed for potential repurposing against SARS-CoV-2. Taken together, these data suggest that the human Intestine Chip might be useful as a human preclinical model for studying coronavirus related pathology as well as for testing of potential anti-viral or anti-inflammatory therapeutics.
2021-11-17 | GSE184569 | GEO
Project description:Many patients infected with coronaviruses, such as SARS-CoV-2 and NL63 that use ACE2 receptors to infect cells, exhibit gastrointestinal symptoms and viral proteins are found in the human gastrointestinal tract, yet little is known about the inflammatory and pathological effects of coronavirus infection on the human intestine. Here, we used a human intestine-on-a-chip (Intestine Chip) microfluidic culture device lined by patient organoid-derived intestinal epithelium interfaced with human vascular endothelium to study host cellular and inflammatory responses to infection with NL63 coronavirus. These organoid-derived intestinal epithelial cells dramatically increased their ACE2 protein levels when cultured under flow in the presence of peristalsis-like mechanical deformations in the Intestine Chips compared to when cultured statically as organoids or in Transwell inserts. Infection of the intestinal epithelium with NL63 on-chip led to inflammation of the endothelium as demonstrated by loss of barrier function, increased cytokine production, and recruitment of circulating peripheral blood mononuclear cells (PBMCs). Treatment of NL63 infected chips with the approved protease inhibitor drug, nafamostat, inhibited viral entry and resulted in a reduction in both viral load and cytokine secretion, whereas remdesivir, one of the few drugs approved for COVID19 patients, was not found to be effective and it also was toxic to the endothelium. This model of intestinal infection was also used to test the effects of other drugs that have been proposed for potential repurposing against SARS-CoV-2. Taken together, these data suggest that the human Intestine Chip might be useful as a human preclinical model for studying coronavirus related pathology as well as for testing of potential anti-viral or anti-inflammatory therapeutics.
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Project description:The study aimed to make a molecular definition of myenteric neuron classes in the mouse small intestine and describe their differentiation from enteric stem cells during embryogenesis. Method: We performed single cell RNA-sequencing of enteric neurons from small intestine at the juvenile stage (postnatal day (P)21) and ENS cells from the small intestine at embryonic day (E)15.5 and E18.5. We confirmed novel marker genes for all classes using immunohistochemistry and characterised the morphology/axons of three of newly discovered ENS neuron types. Results: 12 unique enteric neuron classes (ENC1-12) were identified and confirmed in native tissue by histochemical methods. The communication machinery (ligand, receptors, adhesion molecules), axonal patterns and morphologies were presented to infer functional roles of the ENCs. Analysis of embryonic transcriptomes revealed that enteric stem cells differentiate into two neuronal branches, that successively diversify into ENC1-7 and ENC8-12, respectively. Conclusion: Utilizing single cell RNA-sequencing we conclude that murine small intestine consists of 12 major myenteric classes that emerge through a step-wise fashion during embryonic development. Reference: Morarach, Mikhailova et al., 2020. BioRxiv 2020.03.02.955757
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Project description:We designed a long-term culture system for porcine intestinal organoids from intestinal crypt or single Lgr5+ stem cells by combining previously defined insights in the growth requirements of intestinal epithelium of human and mouse. We showed that long-term cultured swine intestinal organoids were expanded in vitro more than six months at least and maintained the potential to differentiate into different types of cells. These organoids were successfully infected with porcine enteric coronavirus including porcine epidemic diarrhea virus (PEDV) and transmissible gastroenteritis virus (TGEV). RNA-seq analysis showed that robust induction of transcripts associated with antiviral signaling in response to enteric coronavrius infection, including a number of interferon-stimulated genes and cytokines. Moreover, gene set enrichment analysis indicated that PEDV infection could suppress immune response in organoids. This 3D intestinal organoid model offers a long-term, renewable resource for investigating porcine intestinal infections with a variety of pathogens.
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Project description:This study was undertaken to identify gene expression changes in enteric neurons of Hirschsprung disease mice. Methods: We performed single-cell RNA sequencing of enteric nervous system cells isolated from the small intestine of Ednrb-knockout mice at age P14. Results: Through comparisons with published datasets of WT small intestine enteric neurons, we identify a missing neuronal population in the ganglionated small intestine of Hirschsprung disease mice. Conclusion: Single-cell RNA sequencing permits identification of cellular perturbations in Hirschsprung disease models.
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Project description:To identify the gene expression profile of enteric glia and assess the transcriptional similarity between enteric and extraenteric glia, we performed RNA sequencing analysis on PLP1-expressing cells in the mouse intestine. This analysis shows that enteric glia are transcriptionally unique and distinct from other cell types in the nervous system. Enteric glia express many genes characteristic of the myelinating glia, Schwann cells and oli- godendrocytes, although there is no evidence of myelination in the murine ENS. Total RNA expression profiles of PLP1 expressing enteric glial cells (GFP+) and non-glial cells (GFP-negative) were obtained from the ileum and colon of juvenile PLP1-eGFP transgenic mice.
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