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Flow Cytometry to Estimate Leukemia Stem Cells in Primary Acute Myeloid Leukemia and in Patient-derived-xenografts, at Diagnosis and Follow Up
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Flow Cytometry to Estimate Leukemia Stem Cells in Primary Acute Myeloid Leukemia and in Patient-derived-xenografts, at Diagnosis and Follow Up

Published on: March 26, 2018

[Specific features of stem cell (CD34+) subvariant of acute lymphoblast cell leukemia in children]

S A Maiakova, N N Tupitsyn, N V Gavrikova

    Vestnik Rossiiskoi Akademii Meditsinskikh Nauk
    |August 16, 2000
    PubMed

    Insights

    A distinct stem-cell subvariant of acute lymphoblastic leukemia (ALL) in children presents unique immunophenotypic features and poorer prognosis. Intensified treatment improved survival for these patients.

    Area of Science:

    • Pediatric Oncology
    • Hematology
    • Immunology

    Background:

    • Acute lymphoblastic leukemia (ALL) is a significant pediatric cancer.
    • Understanding ALL subvariants is crucial for targeted therapy.
    • The stem-cell immunological subvariant of ALL requires further characterization.

    Purpose of the Study:

    • To identify and characterize the stem-cell immunological subvariant of ALL in children.
    • To investigate the immunophenotypic, clinical, and hematological features of this subvariant.
    • To evaluate the prognostic impact and treatment outcomes for stem-cell ALL.

    Main Methods:

    • Analysis of 134 children with ALL treated between 1990 and 1999.
    • Immunophenotyping to identify CD34+ lymphoblast cells.
    • Comparison of clinical and hematological data between stem-cell ALL and CD34-negative ALL.

    Main Results:

    • Identified a stem-cell immunological subvariant of ALL characterized by CD34 expression.
    • Stem-cell ALL showed lower leukocyte and blast cell counts at diagnosis but a poorer prognosis.
    • Blast cell CD34 expression worsened prognosis in pre-pre-B ALL.
    • Intensified treatment programs significantly improved relapse-free survival in stem-cell ALL.

    Conclusions:

    • The stem-cell immunological subvariant of ALL in children is a distinct entity with unique features.
    • This subvariant is associated with a poorer prognosis, but intensified treatment can improve outcomes.
    • Further research into specific ALL subvariants is essential for optimizing pediatric cancer therapy.

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