TRMT6-mediated tRNA m1A modification acts as a translational checkpoint of histone synthesis and facilitates colorectal cancer progression
- PMID: 40461825
- DOI: 10.1038/s43018-025-00977-4
TRMT6-mediated tRNA m1A modification acts as a translational checkpoint of histone synthesis and facilitates colorectal cancer progression
Abstract
Transfer RNA modifications have emerged as critical regulators of translational reprogramming, yet their roles in colorectal cancer (CRC) remain largely elusive. Here, we find that tRNA N1-methyladenosine (m1A) methyltransferase TRMT6 is upregulated in human CRC tissues and high TRMT6 expression correlates with poor survival in patients with CRC. Using orthotopic, metastatic and conditional knockout mouse models, we establish the oncogenic role of TRMT6 in CRC. Mechanistically, TRMT6 increases tRNA m1A levels by maintaining the stability of the TRMT6-TRMT61A complex. Targeting TRMT6-mediated tRNA m1A modification in CRC cells destabilizes tRNA-Lys-TTT-1-1 and impairs histone mRNA translation in a codon-biased manner, thereby restricting histone synthesis and hindering cell cycle progression. Our study provides evidence that TRMT6 functions as a translational checkpoint in the accelerated histone synthesis of CRC cells, highlighting TRMT6 as a promising target for potential anti-CRC therapies.
© 2025. The Author(s), under exclusive licence to Springer Nature America, Inc.
Conflict of interest statement
Competing interests: The authors declare no competing interests.
References
-
- Sung, H. et al. Global cancer statistics 2020: GLOBOCAN estimates of incidence and mortality worldwide for 36 cancers in 185 countries. CA Cancer J. Clin. 71, 209–249 (2021). - PubMed
-
- Dekker, E., Tanis, P. J., Vleugels, J. L. A., Kasi, P. M. & Wallace, M. B. Colorectal cancer. Lancet 394, 1467–1480 (2019). - PubMed
-
- Siegel, R. L. et al. Colorectal cancer statistics, 2020. CA Cancer J. Clin. 70, 145–164 (2020). - PubMed
-
- Barbieri, I. & Kouzarides, T. Role of RNA modifications in cancer. Nat. Rev. Cancer 20, 303–322 (2020). - PubMed
-
- Suzuki, T. The expanding world of tRNA modifications and their disease relevance. Nat. Rev. Mol. Cell Biol. 22, 375–392 (2021). - PubMed
MeSH terms
Substances
Grants and funding
- 82273140/National Natural Science Foundation of China (National Science Foundation of China)
- 82403172/National Natural Science Foundation of China (National Science Foundation of China)
- 82002484/National Natural Science Foundation of China (National Science Foundation of China)
- 82203269/National Natural Science Foundation of China (National Science Foundation of China)
- 82303215/National Natural Science Foundation of China (National Science Foundation of China)