Adult T-cell acute lymphoblastic leukemia has a poor outcome after relapse. Because the subtype of early T-cell precursor displays characteristics close of those of acute myeloid leukemia, such as epigenetic dysregulation, hypomethylating agents might prove of interest. We describe the case of a patient relapsing 3 months only after allogeneic stem cell transplantation who achieved complete remission on azacitidine, and is still on therapy 9 years later. We discuss the biological background of this very long-term response, underlining the immunological effects of hypomethylating agents, and the perspectives opened by combination of hypomethylating agents with other drugs such as venetoclax.
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http://dx.doi.org/10.1080/10428194.2024.2390572 | DOI Listing |
Front Oncol
December 2024
Department of Hematology, The 923rd Hospital of the Joint Logistics Support Force of the People's Liberation Army, Nanning, China.
The management of patients with myelodysplastic syndrome (MDS) refractory to hypomethylating agents (HMAs) remains a challenge with few reliably effective treatments. Preclinical studies have shown that the inhibition of the nuclear export protein XPO1 causes nuclear accumulation of p53 and disruption of NF-κB signaling; both of which are relevant targets for MDS. Selinexor is an XPO1 inhibitor with demonstrated efficacy in MDS patients.
View Article and Find Full Text PDFBackground: Patients with secondary acute myeloid leukemia who previously received hypomethylating agents for prior myeloid neoplasms (HMA-sAML) face a dismal prognosis.
Methods: The authors analyze the characteristics, therapeutic approaches, and outcomes of patients with HMA-sAML from the Programa Español para el Tratamiento de Hemopatías Malignas (PETHEMA) registry.
Results: A total of 479 patients were included, mostly from prior myelodysplastic syndrome (84%).
Leuk Lymphoma
January 2025
National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China.
Alterations in the RAS pathway underscore the pathogenic complexity of acute myeloid leukemia (AML), yet the full spectrum, including , , , , and , remains to be fully elucidated. In this retrospective study of 735 adult AML patients, the incidence of RAS pathway alterations was 32.4%, each with distinct clinical characteristics.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Korea.
Hypomethylating agents (HMAs) such as azacytidine and decitabine are FDA-approved chemotherapy drugs for hematologic malignancy. By inhibiting DNA methyltransferases, HMAs reactivate tumor suppressor genes (TSGs) and endogenous double-stranded RNAs (dsRNAs) that limit tumor growth and trigger apoptosis via viral mimicry. Yet, HMAs show limited effects in many solid tumors despite the strong induction of TSGs and dsRNAs.
View Article and Find Full Text PDFEur J Haematol
December 2024
Division of Hematology and Oncology, Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Venetoclax with hypomethylating agents (HMA) is the standard of care for acute myeloid leukemia (AML) in patients ineligible for intensive chemotherapy and is associated with tumor lysis syndrome (TLS). TLS prophylaxis and the use of Cairo Bishop versus Howard diagnostic criteria are not standardized. Here we report TLS prophylaxis and incidence in a retrospective cohort of 100 consecutive AML patients treated with venetoclax and HMA.
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