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The Plasmacytoid Dendritic Cell CD123+ Compartment in Acute Leukemia with or without RUNX1 Mutation: High Inter-Patient Variability Disclosed by Immunophenotypic Unsupervised Analysis and Clustering
- Source :
- Hemato, Vol 2, Iss 36, Pp 572-585 (2021), Hemato, Volume 2, Issue 3, Pages 36-585
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Plasmacytoid dendritic cells (PDC) constitute a small subset of normal bone marrow (BM) cells but have also been shown to be present, sometimes in large numbers, in several hematological malignancies such as acute myeloid leukemia with RUNX1 mutation, chronic myelomonocytic leukemia or, obviously, blastic plasmacytoid dendritic cell neoplasms. These cells have been reported to display somewhat variable immunophenotypic features in different conditions. However, little is known of their plasticity within individual patients. Using an unsupervised clustering tool (FlowSOM) to re-visit flow cytometry results of seven previously analyzed cases of hematological malignancies (6 acute myeloid leukemia and one chronic myelomonocytic leukemia) with a PDC contingent, we report here on the unexpectedly high variability of PDC subsets. Although five of the studied patients harbored a RUNX1 mutation, no consistent feature of PDCs could be disclosed as associated with this variant. Moreover, the one normal single-node small subset of PDC detected in the merged file of six normal BM could be retrieved in the remission BM samples of three successfully treated patients. This study highlights the capacity of unsupervised flow cytometry analysis to delineate cell subsets not detectable with classical supervised tools.
- Subjects :
- Mutation
Acute leukemia
RUNX1
medicine.diagnostic_test
flow cytometry
Chronic myelomonocytic leukemia
Myeloid leukemia
hemic and immune systems
Plasmacytoid dendritic cell
Biology
acute myeloid leukemia
medicine.disease_cause
medicine.disease
Flow cytometry
unsupervised clustering
chemistry.chemical_compound
chemistry
hemic and lymphatic diseases
medicine
Cancer research
plasmacytoid dendritic cell
Medicine
Interleukin-3 receptor
Subjects
Details
- Language :
- English
- ISSN :
- 26736357
- Volume :
- 2
- Issue :
- 36
- Database :
- OpenAIRE
- Journal :
- Hemato
- Accession number :
- edsair.doi.dedup.....6463cef6e58687f1f3b3136e438b23e0