Cited by 31CRISPR and Genetic EngineeringRNA regulation and diseaseRNA Interference and Gene Delivery

Intrinsic targeting of host RNA by Cas13 constrains its utility

Li, Zexu, Li, Zihan, Cheng, Xiaolong, Wang, Shengnan, Wang, Xiaofeng, Ma, Shixin, Lu, Zhiyan, Zhang, Han +7 more·2023·Nature Biomedical Engineering

Abstract

Cas13 can be used for the knockdown, editing, imaging or detection of RNA and for RNA-based gene therapy. Here by using RNA immunoprecipitation sequencing, transcriptome profiling, biochemical analysis, high-throughput screening and machine learning, we show that Cas13 can intrinsically target host RNA in mammalian cells through previously unappreciated mechanisms. Different from its known cis/trans RNA-cleavage activity, Cas13 can also cleave host RNA via mechanisms that are transcript-specific, independent of the sequence of CRISPR RNA and dynamically dependent on the conformational state of Cas13, as we show for several Cas13-family effectors encoded in one-vector and two-vector lentiviral systems. Moreover, host genes involved in viral processes and whose transcripts are intrinsically targeted by Cas13 contribute to constraining the lentiviral delivery and expression of Cas13. Our findings offer guidance for the appropriate use of lentiviral Cas13 systems and highlight the need for caution regarding intrinsic RNA targeting in Cas13-based applications.

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Crossref · 10.1038/s41551-023-01109-y

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  • The highest number of DEGs was from the Cas13bt3-NT sgRNA group compared to Cas13bt3 only or Cas13bt3-VEGFA sgRNA (81 vs 27 and 23).

    “Interestingly, we noted the highest number of differentially expressed genes (DEGs) from the Cas13bt3-NT sgRNA group compared to Cas13bt3 only or Cas13bt3-VEGFA sgRNA (81 vs 27 and 23, respectively; Fig. 1I), a finding that corresponds with recent studies (16, 22).”

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Authors
Li, Z., Li, Z., Cheng, X., Wang, S., Wang, X., Ma, S., Lu, Z., Zhang, H., Zhao, W., Chen, Z., Yao, Y., Zhang, C., Chao, L., Li, W., & Fei, T.
Affiliations
  • Northeastern University (CN)
  • Children's National (US)
Corresponding author
Li, Wei
Venue
Nature Biomedical Engineering
Published
2023-10-23
Volume
8
Issue
2
Pages
177-192
ISSN
2157-846X (ISSN-L)
OpenAlex
W4387874003
Cited by
31
References
51
Citations by year
2026: 11 · 2025: 12 · 2024: 7 · 2023: 1
FWCI
2.75
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Biomedical Engineering (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (32071441)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
Keywords
Cas13, RNA cleavage, lentiviral delivery, viral gene expression, RNA editing, RNA imaging, RNA detection, RNA knockdown
MeSH terms
Animals, Mammals, RNA, Genetic Therapy, Lentivirus, Gene Expression Profiling, CRISPR-Cas Systems

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