In this study, the serine biosynthetic enzyme PHGDH is shown to transition from the cytosol to the nucleus following nutrient stress. Nuclear PHGDH reduces local NAD+ availability needed for the PARylation of the transcription factor c-Jun. Consequently, c-Jun activity is reduced, contributing to sustained cancer cell proliferation.
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Acknowledgements
S.-M.F. acknowledges funding from the European Research Council under the ERC Consolidator Grant Agreement no. 771486–MetaRegulation, FWO Projects (G098120N, G088318N), Fonds Baillet Latour, KU Leuven-FTBO and the King Baudouin Foundation.
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S.-M.F. has received funding from Bayer, Merck and BlackBelt Therapeutic and has consulted for Fund+. D.A. declares no competing interests.
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Annibali, D., Fendt, SM. Nuclear PHGDH protects cancer cells from nutrient stress. Nat Metab 3, 1284–1285 (2021). https://doi.org/10.1038/s42255-021-00448-x
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DOI: https://doi.org/10.1038/s42255-021-00448-x
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