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CD123 as a Therapeutic Target Against Malignant Stem Cells
Mayumi Sugita1, Monica L Guzman2
1Division of Hematology and Medical Oncology, Weill Cornell Medical College, 1300 York Avenue, C-660B, New York, NY 10065, USA.
Leukemic stem cells (LSCs) in acute myeloid leukemia share markers with normal hematopoietic stem cells (HSCs) but have unique features. CD123 is a promising target for eliminating LSCs.
Area of Science:
- Hematology
- Cancer Biology
- Immunophenotyping
Background:
- Hematopoiesis is regulated by hematopoietic stem cells (HSCs).
- Cancer can originate from malignant stem cells, such as leukemic stem cells (LSCs) in acute myeloid leukemia.
- LSCs share some immunophenotypic markers with HSCs (CD34+CD38-) but possess unique features.
Purpose of the Study:
- To identify unique immunophenotypic markers of LSCs for therapeutic targeting.
- To evaluate CD123 as a potential target for eliminating LSCs.
Main Methods:
- Immunophenotypic analysis of LSCs and HSCs.
- Identification of differentially expressed markers.
Main Results:
- LSCs exhibit aberrant expression of CD123 on leukemic stem, progenitor, and blast cells.
- CD123 expression distinguishes LSCs from normal HSCs.
Conclusions:
- CD123 is a unique immunophenotypic marker of LSCs.
- CD123 represents an attractive therapeutic target for eradicating LSCs in acute myeloid leukemia.
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