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Updated: Jul 20, 2025

Genome-wide RNAi Screening to Identify Host Factors That Modulate Oncolytic Virus Therapy
Published on: April 3, 2018
Deciphering and targeting host factors to counteract SARS-CoV-2 and coronavirus infections: insights from CRISPR
Zhifen Cui1, Hongyan Wang1, Yizhou Dong2
1Department of Pathology, Duke University School of Medicine, Durham, NC, United States.
Abstract:
Severe respiratory syndrome coronavirus 2 (SARS-CoV-2) and other coronaviruses depend on host factors for the process of viral infection and replication. A better understanding of the dynamic interplay between viral pathogens and host cells, as well as identifying of virus-host dependencies, offers valuable insights into disease mechanisms and informs the development of effective therapeutic strategies against viral infections. This review delves into the key host factors that facilitate or hinder SARS-CoV-2 infection and replication, as identified by CRISPR/Cas9-based screening platforms. Furthermore, we explore CRISPR/Cas13-based gene therapy strategies aimed at targeting these host factors to inhibit viral infection, with the ultimate goal of eradicating SARS-CoV-2 and preventing and treating related coronaviruses for future outbreaks.
Insights
Understanding host factors is key to combating SARS-CoV-2. CRISPR screens identify these factors, paving the way for CRISPR-based therapies against viral infections and future coronavirus outbreaks.
Area of Science:
- Virology
- Molecular Biology
- Genetics
Background:
- Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) relies on host cell factors for replication.
- Identifying virus-host interactions is crucial for understanding disease and developing therapeutics.
Purpose of the Study:
- To review host factors influencing SARS-CoV-2 infection and replication.
- To explore CRISPR/Cas13 gene therapy strategies targeting these host factors.
Main Methods:
- CRISPR/Cas9-based screening platforms to identify host factors.
- Review of existing literature on CRISPR/Cas13 applications in antiviral therapy.
Main Results:
- Key host factors that promote or restrict SARS-CoV-2 infection have been identified.
- CRISPR/Cas13 strategies show potential for inhibiting viral replication by targeting host factors.
Conclusions:
- Targeting host-virus dependencies is a promising therapeutic avenue.
- CRISPR-based technologies offer innovative strategies for combating SARS-CoV-2 and future coronavirus threats.
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