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Inhibition of coronavirus HCoV-OC43 by targeting the eIF4F complex

ABSTRACT: Inhibition of coronavirus HCoV-OC43 by targeting the eIF4F complex

PROVIDER: PRJNA814880 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR18298800.fastq.gz	Fastqsanger.gz
	SRR18298801.fastq.gz	Fastqsanger.gz
	SRR18298802.fastq.gz	Fastqsanger.gz
	SRR18298803.fastq.gz	Fastqsanger.gz
	SRR18298804.fastq.gz	Fastqsanger.gz

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Inhibition of coronavirus HCoV-OC43 by targeting the eIF4F complex [A549]

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Project description:The translation initiation complex 4F (eIF4F) is a rate-limiting factor in protein synthesis. Alterations in eIF4F activity are linked to several diseases, including cancer and infectious diseases. To this end, coronaviruses require eIF4F complex activity to produce proteins essential for their life cycle. Efforts to target coronaviruses by abrogating translation have been largely limited to repurposing existing eIF4F complex inhibitors. Here, we report the results of a high throughput screen to identify small molecules that disrupt eIF4F complex formation and inhibit coronavirus RNA and protein levels. Of 338,000 small molecules screened for inhibition of the eIF4F-driven, CAP-dependent translation, we identified SBI-1232 and two structurally related analogs, SBI-5844 and SBI-0498, that inhibit human coronavirus OC43 (HCoV-OC43; OC43) with minimal cell toxicity. Notably, gene expression changes after OC43 infection of Vero E6 or A549 cells were effectively reverted upon treatment with SBI-5844 or SBI-0498. Moreover, SBI-5844 or SBI-0498 treatment effectively impeded the eIF4F complex assembly, with concomitant inhibition of newly synthesized OC43 nucleocapsid protein and OC43 RNA and protein levels. Overall, we identify SBI-5844 and SBI-0498 as small molecules targeting the eIF4F complex that may limit coronavirus transcripts and proteins, thereby representing a basis for developing novel therapeutic modalities against coronaviruses.

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Inhibition of coronavirus HCoV-OC43 by targeting the eIF4F complex

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