Implications of TP53 allelic state for genome stability, clinical presentation and outcomes in myelodysplastic syndromes.

ABSTRACT: Tumor protein p53 (TP53) is the most frequently mutated gene in cancer^1,2. In patients with myelodysplastic syndromes (MDS), TP53 mutations are associated with high-risk disease^3,4, rapid transformation to acute myeloid leukemia (AML)⁵, resistance to conventional therapies^6-8 and dismal outcomes⁹. Consistent with the tumor-suppressive role of TP53, patients harbor both mono- and biallelic mutations¹⁰. However, the biological and clinical implications of TP53 allelic state have not been fully investigated in MDS or any other cancer type. We analyzed 3,324 patients with MDS for TP53 mutations and allelic imbalances and delineated two subsets of patients with distinct phenotypes and outcomes. One-third of TP53-mutated patients

SUBMITTER: Bernard E 

PROVIDER: S-EPMC8381722 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature