Mechanisms of Resistance to Therapy in Acute Myeloid Leukemia

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Cancer Therapy".

Deadline for manuscript submissions: closed (1 April 2022) | Viewed by 3254

Special Issue Editors

Amsterdam UMC - Vrije Universiteit Amsterdam, Amsterdam, Netherlands
Interests: acute myeloid leukemia (AML); leukemic stem cell (LSC); minimal residual disease (MRD)

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Guest Editor
Department of Hematology, VUMC, Cancer Center Amsterdam, De Boelelaan 1117, 1081HV, Amsterdam, The Netherlands
Interests: drug resistance; measurable minimal disease; proteasome inhibitors; splicing; clonal evolution

Special Issue Information

Dear Colleagues,

At present, the first-line treatment for acute myeloid leukemia (AML) is based on daunorubicin or idarubicin and cytosine arabinoside. Although this treatment induces complete remission in the majority of patients, many face a relapse (adaptive resistance) or have refractory disease (primary resistance). Moreover, older patients are often unfit for cytotoxic-based treatment. The major therapeutic advances made over the years for AML patients have involved improvements in supportive care rather than the introduction of novel therapeutics. However, finally, after many years, a total of eight targeted agents, guided by our knowledge of the unique molecular landscape of the individual AML patient, have been approved for the treatment of AML. However, still the major problem with these targeted therapies is that many patients obtain an remission but retain residual tumor cells (minimal residual disease, MRD) that can develop into recurrence. Leukemia cells with stem cell features, named leukemic stem cells (LSCs), that reside within MRD are thought to be at the origin of AML relapse. This Special Issue will elaborate on the mechanisms of resistance to therapy in AML, including the role of signaling pathways, metabolism, the epigenome, “stemness”, integrins, the immune system, and the microenvironment.

Dr. Linda Smit
Prof. Dr. Jacqueline Cloos
Guest Editors

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Keywords

  • acute myeloid leukemia
  • resistance to therapy
  • minimal residual disease
  • leukemic stem cells
  • targeted therapy

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Published Papers (1 paper)

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Research

17 pages, 3435 KiB  
Article
Maturation State-Specific Alternative Splicing in FLT3-ITD and NPM1 Mutated AML
by Anna Wojtuszkiewicz, Inge van der Werf, Stephan Hutter, Wencke Walter, Constance Baer, Wolfgang Kern, Jeroen J. W. M. Janssen, Gert J. Ossenkoppele, Claudia Haferlach, Jacqueline Cloos and Torsten Haferlach
Cancers 2021, 13(16), 3929; https://doi.org/10.3390/cancers13163929 - 4 Aug 2021
Cited by 4 | Viewed by 2672
Abstract
Despite substantial progress achieved in unraveling the genetics of AML in the past decade, its treatment outcome has not substantially improved. Therefore, it is important to better understand how genetic mutations translate to phenotypic features of AML cells to further improve response predictions [...] Read more.
Despite substantial progress achieved in unraveling the genetics of AML in the past decade, its treatment outcome has not substantially improved. Therefore, it is important to better understand how genetic mutations translate to phenotypic features of AML cells to further improve response predictions and to find innovative therapeutic approaches. In this respect, aberrant splicing is a crucial contributor to the pathogenesis of hematological malignancies. Thus far, altered splicing is well characterized in relation to splicing factor mutations in AML. However, splicing profiles associated with mutations in other genes remain largely unexplored. In this study, we explored differential splicing profiles associated with two of the most common aberrations in AML: FLT3-ITD and NPM1 mutations. Using RNA-sequencing data of a total of 382 primary AML samples, we found that the co-occurrence of FLT3-ITD and mutated NPM1 is associated with differential splicing of FAB-type specific gene sets. Despite the FAB-type specificity of particular gene sets, the primary functions perturbed by differential splicing in all three FAB types include cell cycle control and DNA damage response. Interestingly, we observed functional divergence between alternatively spliced and differentially expressed genes in FLT3-ITD+/NPM1+ samples in all analyzed FAB types, with differential expression affecting genes involved in hematopoietic differentiation. Altogether, these observations indicate that concomitant FLT3-ITD and mutated NPM1 are associated with the maturation state-specific differential splicing of genes with potential oncogenic relevance. Full article
(This article belongs to the Special Issue Mechanisms of Resistance to Therapy in Acute Myeloid Leukemia)
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