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CANCER THERAPY

dMMR and thiopurines strand TP53 for ALL relapse

Drug resistance may pre-exist or arise during therapy, but how precisely cancer treatment itself influences these processes is a major gap in the understanding of therapy resistance in cancer. A study of acute lymphocytic leukemia now provides direct evidence of thiopurine-induced mutations in the gene encoding the tumor suppressor p53 that result in multi-drug-resistant relapse.

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Fig. 1: Clonal evolution in leukemia driven by thiopurine treatment.

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Correspondence to William L. Carroll.

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Evensen, N.A., Carroll, W.L. dMMR and thiopurines strand TP53 for ALL relapse. Nat Cancer 2, 777–779 (2021). https://doi.org/10.1038/s43018-021-00248-y

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