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Genome-scale CRISPR screen identifies TMEM41B as a critical host factor required for coronavirus replication [PigGeCKO]

ABSTRACT: We use the a porcine genome-scale CRISPR/Cas9 knockout (PigGeCKO) library (Zhao et al., 2020) to identify key host factors facilitating TGEV infection in porcine cells.

ORGANISM(S): Sus scrofa

PROVIDER: GSE169111 | GEO | 2021/11/19

REPOSITORIES: GEO

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Genome-scale CRISPR screen identifies TMEM41B as a critical host factor required for coronavirus replication [Focused cell]

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Long-term Expansion of Porcine Intestinal Organoids serves as an Ex Vivo Model for Swine Enteric Coronavirus infection

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Genome-scale CRISPR screen identifies TMEM41B as a critical host factor required for coronavirus replication

Project description:Genome-scale CRISPR screen identifies TMEM41B as a critical host factor required for coronavirus replication

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Genome-scale CRISPR screen identifies TMEM41B as a critical host factor required for coronavirus replication [PigGeCKO]

Project description:Genome-scale CRISPR screen identifies TMEM41B as a critical host factor required for coronavirus replication [PigGeCKO]

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The porcine microRNA transcriptome response to transmissible gastroenteritis virus infection

Project description:Transmissible gastroenteritis virus (TGEV; Coronaviridae family) causes huge economic losses to the swine industry. MicroRNAs (miRNAs) play a regulatory role in viral infection and may be involved in the mammalian immune response. Here, we report a comprehensive analysis of host miRNA expression in TGEV-infected swine testis (ST) cells. Deep sequencing generated 3,704,353 and 2,763,665 reads from uninfected ST cells and infected ST cells, respectively. The reads were aligned to known Sus scrofa pre-miRNAs in miRBase 19, identifying 284 annotated miRNAs. Certain miRNAs were differentially regulated during TGEV infection, which confirmed the hypothesis that specific miRNAs play a regulatory role in virus-host interactions. 59 unique miRNAs displayed significant differentially expression between the normal and TGEV-infected ST cell samples: 15 miRNAs were significantly up-regulated and 44 were significantly down-regulated. Stem-loop RT-PCR was carried out to determine the expression levels of specific miRNAs in the two samples, and the results were consistent with those of sequencing. Gene ontology enrichment analysis of host target genes demonstrated that the differentially expressed miRNAs are involved in regulatory networks, including cellular process, metabolic process, immune system process. This is the first report of the identification of ST cell miRNAs and the comprehensive analysis of the miRNA regulatory mechanism during TGEV infection, which revealed the miRNA molecular regulatory mechanisms for the viral infection, expression of viral genes and the expression of immune-related genes. The results presented here will aid research on the prevention and treatment of viral diseases. 2 ST(Porcine testicular cells) cell samples, ST: normal ST cell sample (contro sample), TGEV: TGEV (Transmissible gastroenteritis virus) infected ST cell samples

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Receptor Tyrosine Kinase Inhibitors Block proliferation of coronavirus mainly through p38 mitogen-activated protein kinase pathways

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