Cited by 136RNA and protein synthesis mechanismsRNA modifications and cancerDNA Repair Mechanisms

DNA damage-induced cell death relies on SLFN11-dependent cleavage of distinct type II tRNAs

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Li, Manqing, Kao, Elaine, Malone, Dane, Gao, Xia, Wang, Jean Y. J., David, Michael·2018·Nature Structural & Molecular Biology

Abstract

Transcriptome analysis reveals a strong positive correlation between human Schlafen family member 11 (SLFN11) expression and the sensitivity of tumor cells to DNA-damaging agents (DDAs). Here, we show that SLFN11 preferentially inhibits translation of the serine/threonine kinases ATR and ATM upon DDA treatment based on distinct codon usage without disrupting early DNA damage response signaling. Type II transfer RNAs (tRNAs), which include all serine and leucine tRNAs, are cleaved in a SLFN11-dependent manner in response to DDAs. Messenger RNAs encoded by genes with high TTA (Leu) codon usage, such as ATR, display utmost susceptibility to translational suppression by SLFN11. Specific attenuation of tRNA-Leu-TAA sufficed to ablate ATR protein expression and restore the DDA sensitivity of SLFN11-deficient cells. Our study uncovered a novel mechanism of codon-specific translational inhibition via SLFN11-dependent tRNA cleavage in the DNA damage response and supports the notion that SLFN11-deficient tumor cells can be resensitized to DDAs by targeting ATR or tRNA-Leu-TAA.

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Authors
Li, M., Kao, E., Malone, D., Gao, X., Wang, J. Y. J., & David, M.
Affiliations
University of California San Diego (US)
Corresponding author
  • Li, Manqing
  • David, Michael
Venue
Nature Structural & Molecular Biology
Published
2018-10-29
Volume
25
Issue
11
Pages
1047-1058
ISSN
  • 1545-9985 (ISSN-L)
  • 1545-9993
OpenAlex
W2895818115
Cited by
136
References
28
Citations by year
2026: 18 · 2025: 27 · 2024: 20 · 2023: 18 · 2022: 12 · 2021: 17 · 2020: 11 · 2019: 13
FWCI
3.65
Type
journal article
Language
en
Open access
Locations
  • Nature Structural & Molecular Biology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute of General Medical Sciences (R01GM101982, R01GM128155)
  • National Institute of Allergy and Infectious Diseases (R21AI088490, R21AI124199)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA and protein synthesis mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA modifications and cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
SLFN11, DNA damage response, ATR kinase, ATM kinase, DNA-damaging agents, camptothecin, tumor cell sensitivity
MeSH terms
Camptothecin, Codon, DNA Damage, Humans, Nuclear Proteins, RNA, Transfer, RNA, Transfer, Leu, Protein Biosynthesis, Cell Death, RNA, Small Interfering, Cell Line, Tumor, HEK293 Cells, Topoisomerase I Inhibitors, Ataxia Telangiectasia Mutated Proteins

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