Detect and destroy: CRISPR-based technologies for the response against viruses

Cell Host Microbe. 2021 May 12;29(5):689-703. doi: 10.1016/j.chom.2021.04.003. Epub 2021 Apr 28.

Abstract

Despite numerous viral outbreaks in the last decade, including a devastating global pandemic, diagnostic and therapeutic technologies remain severely lacking. CRISPR-Cas systems have the potential to address these critical needs in the response against infectious disease. Initially discovered as the bacterial adaptive immune system, these systems provide a unique opportunity to create programmable, sequence-specific technologies for detection of viral nucleic acids and inhibition of viral replication. This review summarizes how CRISPR-Cas systems-in particular the recently discovered DNA-targeting Cas12 and RNA-targeting Cas13, both possessing a unique trans-cleavage activity-are being harnessed for viral diagnostics and therapies. We further highlight the numerous technologies whose development has accelerated in response to the COVID-19 pandemic.

Keywords: CRISPR; CRISPR-based antivirals; CRISPR-based detection; class 2 Cas proteins; viral diagnostics; viruses.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • COVID-19 / diagnosis*
  • COVID-19 / therapy
  • CRISPR-Cas Systems*
  • Humans
  • Mutation
  • RNA, Circular / genetics
  • SARS-CoV-2 / genetics
  • SARS-CoV-2 / isolation & purification*

Substances

  • RNA, Circular