Abstract
Background
m1A, a prevalent RNA modification found in various RNA species, has recently been reported to modulate cancer progression. However, its effects on neuroblastoma remain uninvestigated.
Methods
The PCAT database was utilized to analyze the mRNA levels and survival probabilities of m1A regulator genes (TRMT6, TRMT61A, ALKBH1, and ALKBH3) in neuroblastoma patients. Silencing and recovery of TRMT6 were employed to investigate its role in neuroblastoma in vitro and in vivo. m1A-seq and RIP-qPCR were performed to identify and confirm the downstream targets of TRMT6. Additionally, Actinomycin D treatment was administered to assess mRNA stability.
Results
m1A transmethylase TRMT6 expression was significantly elevated in high-risk and late-stage neuroblastoma patients. Functionally, TRMT6 promotes the malignancy of neuroblastoma cells in vitro and promotes tumor growth and metastasis in vivo. Mechanistically, TRMT6 reduces SST mRNA levels by inhibiting its stability in an m1A-YTHDF2-dependent manner, thereby promoting the development of neuroblastoma. Furthermore, SST analog octreotide suppresses neuroblastoma cell malignancy, tumor growth, and metastasis.
Conclusions
TRMT6 mediates m1A modification of SST to promote neuroblastoma progression, suggesting that targeting TRMT6 may be a novel potential therapeutic approach for treating neuroblastoma.
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Data availability
Data of the m1A-seq in this study have been deposited in the Gene Expression Omnibus (GEO) database under the accession number GSE297545. All data presented in this study are the available from the corresponding author upon request.
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Funding
This work was supported by the National Natural Science Foundation of China (32300473,82002636, 82173593), Guangdong Basic and Applied Basic Research Foundation (2023A1515220053), the Science, Technology and Innovation Commission of Shenzhen (JCYJ20220531093213030).
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Xinxin Zhang, Zhenjian Zhuo, and Jing He designed this project. Xinxin Zhang, Huimin Yin, Liping Chen, and Mengzhen Zhang completed the in vitro experiments. Xinxin Zhang, Huiran Lin, Huimin Yin, Yufeng Han, and Hongxia Chen conducted the in vivo experiments. Jing He collected NB samples and related clinical data. Xinxin Zhang provided the data analysis. Xinxin Zhang, Zhenjian Zhuo, and Jing He wrote the paper. All authors approved this version to be published.
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All procedures involving neuroblastoma patients in this study were conducted following the standards of the Ethics Committee of Guangzhou Women and Children’s Medical Center (Approval number: 2023-120A01). Written consent was signed by patients’ guardians prior to sample collection.
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Zhang, X., Lin, H., Yin, H. et al. m1A methylase TRMT6 promotes neuroblastoma development by demethylating SST mRNA in an m1A/YTHDF2-dependent manner. Br J Cancer 133, 1354–1364 (2025). https://doi.org/10.1038/s41416-025-03152-9
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DOI: https://doi.org/10.1038/s41416-025-03152-9


