Chemotherapy resistance in acute myeloid leukemia is mediated by A20 suppression of spontaneous necroptosis.

ABSTRACT: Acute myeloid leukemia (AML) is a deadly hematopoietic malignancy. Although many patients achieve complete remission with standard induction therapy, a combination of cytarabine and anthracycline, ~40% of patients have induction failure. These refractory patients pose a treatment challenge, as they do not respond to salvage therapy or allogeneic stem cell transplant. Herein, we show that AML patients who experience induction failure have elevated expression of the NF-κB target gene tumor necrosis factor alpha-induced protein-3 (TNFAIP3/A20) and impaired necroptotic cell death. A20^High AML are resistant to anthracyclines, while A20^Low AML are sensitive. Loss of A20 in AML restores sensitivity to anthracycline treatment by inducing necroptosis. Moreover, A20 prevents ne

SUBMITTER: Culver-Cochran AE 

PROVIDER: S-EPMC11502881 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature