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Polymorphonuclear function in acute myeloblastic leukemia.

B Coiffier, Y Frobert, L Revol

    Biomedicine / [Publiee Pour L'A.A.I.C.I.G.]
    |April 1, 1977
    PubMed
    Summary
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    Granulocyte function, including chemotaxis and killing bacteria, is impaired in acute myeloblastic leukemia patients. These immune cell functions improved significantly in patients who achieved complete remission.

    Area of Science:

    • Hematology
    • Immunology
    • Oncology

    Background:

    • Acute myeloblastic leukemia (AML) is a cancer affecting myeloid cells.
    • Granulocytes play a crucial role in the innate immune system.
    • Understanding granulocyte function in AML is vital for prognosis and treatment.

    Purpose of the Study:

    • To assess key granulocyte functions in patients with acute myeloblastic leukemia.
    • To investigate the impact of AML on polymorphonuclear cell migration, phagocytosis, and bactericidal capacity.
    • To determine if granulocyte function improves with remission.

    Main Methods:

    • Assessed polymorphonuclear cell migration using Boyden's chamber.
    • Evaluated the ability of granulocytes to ingest and kill Staphylococcus aureus.

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  • Compared functions in active AML patients and those in complete remission.

    • Main Results:

    • Chemotaxis of polymorphonuclear cells was significantly impaired in AML patients.
    • Cellular impairment of phagocytosis and bactericidal capacity was observed in a majority of patients.
    • An inhibitor affecting phagocytosis and bactericidal capacity was detected in several patients.
    • Granulocyte functions showed improvement in patients who achieved complete remission.

    Conclusions:

    • Granulocyte dysfunction is a notable feature of acute myeloblastic leukemia.
    • Impaired chemotaxis, phagocytosis, and bactericidal activity contribute to immune compromise in AML.
    • Achieving complete remission is associated with recovery of granulocyte functions.