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Immune escape of B-cell lymphoblastic leukemic cells through a lineage switch to acute myeloid leukemia

Abstract

Acute leukemia (AL) with a lineage switch (LS) is associated with poor prognosis. The predisposing factors of LS are unknown, apart from KMT2A rearrangements that have been reported to be associated with LS. Herein, we present two cases and review all 104 published cases to identify risk factors for LS. Most of the patients (75.5%) experienced a switch from the lymphoid phenotype to the myeloid phenotype. Eighteen patients (17.0%) experienced a transformation from acute myelogenous leukemia (AML) to acute lymphoblastic leukemia (ALL). Forty-nine (46.2%) patients carried a KMT2A rearrangement. Most of the cases involved LS from B-cell ALL (B-ALL) to AML (59.4%), and 49 patients (46.2%) carried KMT2A-rearrangements. Forty patients (37.7%) received lineage-specific immunotherapy. Our findings suggest that the prevalence of KMT2A rearrangements together with the lineage-specific immunotherapy may trigger LS, which supports the thesis of the existence of leukemia stem cells that are capable of lymphoid or myeloid differentiation.

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Category:
Articles
Type:
artykuły w czasopismach dostępnych w wersji elektronicznej [także online]
Published in:
LEUKEMIA & LYMPHOMA pages 1 - 11,
ISSN: 1042-8194
Language:
English
Publication year:
2024
Bibliographic description:
Bełdzińska-Gądek K., Zarzycka E., Pastuszak K., Borman K., Lewandowski K., Zaucha J. M., Prejzner W., Immune escape of B-cell lymphoblastic leukemic cells through a lineage switch to acute myeloid leukemia, LEUKEMIA & LYMPHOMA, 2024,10.1080/10428194.2024.2351194
DOI:
Digital Object Identifier (open in new tab) 10.1080/10428194.2024.2351194
Sources of funding:
  • Spoza PG, po stronie innych autorów
Verified by:
Gdańsk University of Technology

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