The outcome of acute leukemia patients with SET-NUP214 fusion after allogeneic stem cell transplantation

Front Oncol. 2023 Oct 13:13:1256043. doi: 10.3389/fonc.2023.1256043. eCollection 2023.

Abstract

SET-NUP214 fusion gene, also known as TAF-1-CAN and SET-CAN, is observed in acute myeloid leukemia (AML) and T-cell lymphoblastic leukemia (T-ALL). SET-NUP214 fusion in T-cell lymphoblastic leukemia is associated with chemotherapy resistance, but the prognosis of patients with AML with SET-NUP214 has rarely been reported. In the present study, we retrospectively analyzed all patients with acute leukemia including AML and T-ALL patients with SET-NUP214 fusion who underwent allogeneic stem cell transplantation (alloHSCT) in our center from July 2017 to November 2022. Of the total 11 patients, 5 patients were diagnosed with AML and 6 patients were diagnosed with T-ALL de novo. All patients received myeloablative regimens in CR1, and there were three (60%) AML patients who relapsed post-alloHSCT and three T-ALL (50%) patients who relapsed post-alloHSCT. Only one patient with AML who relapsed post-alloHSCT responded to subsequent chemotherapy plus donor lymphocyte infusion and survived the last follow-up. The estimated 1-year overall survival and 3-year overall survival for all these 11 patients were 69.3% and 38.5%, respectively. The estimated 1-year leukemia-free survival and 3-year leukemia-free survival for all patients were 69.3% and 38.5%, respectively. The research shows a high incidence of relapse for patients with acute leukemia with the SET-NUP214 fusion gene, even after alloHSCT. More clinical trials or research with larger samples are urgently needed for this group of patients.

Keywords: SET-CAN/NUP214 fusion; acute T lymphoblastic leukemia; acute myeloid leukemia; allogeneic stem cell transplanation; del(9q).

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work is supported by Tianjin Municipal Science and Technology Commission Grant (21JCZDJC01170), the Chinese Academy of Medical Sciences Innovation Fund for Medical Sciences (2021-I2M-C&T-B-080,2021-I2M-1-017), and the Haihe Laboratory of Cell Ecosystem Innovation Fund (22HHXBSS00036) to SF.