Sensitizing cancer cells: is it really all about U?
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abstract
In this issue of Cancer Cell, Hu et al. report that TMPK and RNR, two key enzymes in deoxyribonucleotide biosynthesis, co-localize to damaged DNA and produce nucleotides necessary for DNA repair while suppressing uracil incorporation. TMPK inhibition disrupts this balance and selectively sensitizes cancer cells to low-dose chemotherapy.