Abstract
NUP98 rearrangements associated with acute myeloid leukemia and myelodysplastic syndromes generate NUP98-fusion proteins. One such fusion protein, NUP98::DDX10, contains the putative RNA helicase DDX10. The molecular mechanism by which NUP98::DDX10 induces leukemia is not well understood. Here, we show that 24 amino acids within the DDX10 moiety of NUP98::DDX10 are crucial for cell immortalization and leukemogenesis. NOL10, nucleolar protein 10, interacts with the 24 amino acids, and NOL10 is a critical dependency of NUP98::DDX10 leukemia development. Studies in a mouse model of NUP98::DDX10 leukemia showed that loss of Nol10 impaired disease progression and improved survival. We also identified a novel function of NOL10 in that it acts cooperatively with NUP98::DDX10 to regulate serine biosynthesis pathways and stabilize ATF4 mRNA. Collectively, these findings suggest that NOL10 is a critical regulator of NUP98::DDX10 leukemia and that targeting NOL10 (or the serine synthesis pathway regulated by NOL10) may be an effective therapeutic approach.
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Data availability
The datasets generated and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
This study was supported by Project for Promotion of Cancer Research and Therapeutic Evolution (P-PROMOTE) from AMED.
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YS and IK conceived and designed the experiments. YS, KY, YK, KS, and YA performed the experiments. YS and KY performed the bioinformatic analysis. YS, KY, YK, KS, and IK analyzed the data. YS, KS, and IK wrote the manuscript. All authors edited the manuscript.
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Shima, Y., Yamagata, K., Kuroki, Y. et al. Loss of NOL10 leads to impaired disease progression of NUP98::DDX10 leukemia. Leukemia 39, 1368–1379 (2025). https://doi.org/10.1038/s41375-025-02607-5
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DOI: https://doi.org/10.1038/s41375-025-02607-5


